Best Auditors in Seattle, WA

Hawk Environmental Services, founded in 2013, is a locally and independently owned general contractor based in the Pacific Northwest. They specialize in unbiased inspection and testing services for hazardous materials, environmental safety, and energy efficiency. Hawk Environmental prides itself on providing accurate and necessary information to help identify environmental hazards, keep buildings up to code, and ensure the safety of workers and inhabitants. They offer a range of services including mold testing, asbestos testing, lead paint inspections, VOC and chemical testing, indoor air quality assessments, and water quality testing. They also provide energy audits, ventilation assessments, and moisture inspections, tailoring testing procedures to meet specific client needs. The company aims to deliver practical solutions for healthy indoor environments and safe renovations. Their inspection services include thorough on-site evaluations and written reports detailing observations and recommendations for improvement. Hawk Environmental Services also has a division called Hawk Equipment Services, which provides gas detection sensors along with on-site calibration and repair services across all 50 states. With offices in Seattle, WA and Portland, OR, Hawk Environmental Services offers environmental testing services throughout Washington and Oregon. They focus on professional inspection, testing, consultation, and reporting of various indoor environmental conditions. The company holds certifications in fields such as Building Performance Institute (BPI) building analyst, Energy Star Verifier, AHERA asbestos inspector, State certified lead inspector, State certified lead risk assessor, water damage restoration, and mold inspection. Hawk Environmental Services emphasizes a commitment to customer service and genuine interest in their clients, offering practical advice and follow-up support. They strive to provide scientific information to keep homes and businesses safe, comfortable, energy-efficient, and up to contemporary standards.

Building Energy Specs, Inc., located on the Olympic Peninsula, provides certified home inspection services. They offer services such as home inspections, blower door testing, air duct testing, home energy audits, and infrared thermography. The company prides itself on thorough service and prompt report delivery, aiming to protect clients' investments when selling, improving, or purchasing a home. They are known for their knowledge, professionalism, and clear explanations.

Evergreen Energy Services offers home energy solutions in the Washington area, focusing on professionalism, timeliness, and customer service. They provide thorough energy audits, including blower door tests, smoke stick testing, and thermal imaging. Kirk, a representative of the company, is often mentioned in reviews for being courteous, professional, and helpful in explaining the audit process and recommending fixes.

Habitat Home Energy Specialist appears to focus on improving energy efficiency for homeowners, particularly those with low incomes, aligning with Habitat for Humanity's mission of affordable homeownership. They conduct thorough home energy audits to identify specific problems and recommend prioritized upgrades. Their services include weatherization procedures like sealing windows and doors, insulation, and duct repair. They aim to reduce energy costs, increase home comfort, and promote environmentally responsible living.

Fuller Electric provides electrical services for residential and commercial clients. They offer a range of services including electrical repairs, installations, wiring, panel upgrades, lighting solutions, and more. They focus on quality workmanship, customer satisfaction, and safety. Some locations offer 24/7 emergency services.

Better Air NW provides HVAC services in the Everett & Seattle area, offering heating and cooling solutions for residential clients. They specialize in AC repair, furnace installation, heat pump services, ductless mini-split systems, and air duct cleaning. The company emphasizes reliable and energy-efficient services delivered by licensed and certified technicians. They are a family-owned business committed to customer satisfaction, serving the Portland and Vancouver areas since 2009.

Green House Plumbing and Heating provides plumbing, drain, heating, and HVAC services to homeowners across Seattle and the Eastside communities. They handle everything from clogged drains and sewer repairs to water heater installations and heating system service. The company focuses on clear communication, honest pricing, and quality work. As a local, family-owned operation, they emphasize green living to help customers save on energy costs in the long run.

Crawl Pros specializes in crawl space and attic services, offering cleaning, insulation removal and installation, duct sealing, and full crawl space encapsulation. They also provide mold remediation, water removal, and help with real estate transactions. With years of experience, they focus on providing caring and professional service in the Portland and Greater Seattle areas. Crawl Pros emphasizes making customers feel confident in their work, using high-quality materials and thorough clean-up processes.

Dana's Heating and Cooling Inc., founded in 1997, is a family-owned and operated HVAC company providing comprehensive heating, ventilation, and air conditioning services to the Kitsap Peninsula area. They offer installation, repair, replacement, and maintenance for all makes and models of HVAC systems, specializing in oil, gas, and electric furnaces. Dana's Heating also provides duct cleaning and electrical repairs, striving to keep homes comfortable, safe, and efficient year-round. The company emphasizes customer service, integrity, and honesty, with a 100% customer satisfaction guarantee. Their team of trained experts focuses on understanding customer needs and providing tailored solutions. Dana's Heating offers maintenance agreements with scheduled tune-ups and inspections to increase comfort and potentially save on utilities. Dana's Heating serves various locations including Bremerton, Poulsbo, Bainbridge Island, and Gig Harbor. They are an award-winning, full-service HVAC company with a growing customer base. Dana's Heating also provides air duct services including duct inspection, sealing, repair, replacement and cleaning.

Dr. Energy Saver is a network of home energy contractors across the United States and Canada, specializing in improving home energy efficiency and comfort. Since 2009, they have offered solutions for issues like uncomfortable rooms and high heating and cooling costs. Their services include home energy audits, insulation upgrades (spray foam, cellulose, blown fiberglass, and rigid foam), HVAC system repairs and replacements, and duct sealing. They aim to diagnose energy inefficiencies and provide customized solutions to homeowners, focusing on creating more comfortable and affordable living environments.

O'Brien & Company is a design/build construction firm specializing in restaurants, hotels, wineries, condo renovations, fire stations, single family residential homes, small projects, and maintenance. They integrate design and construction to deliver results for clients and communities. They focus on commercial, civic, and residential projects. O'Brien & Company contracts local Oregonian businesses and utilizes green construction and repurposed materials wherever possible.

ACCO Engineered Systems is one of the largest commercial mechanical and HVAC contractors in the United States, with over 3,000 employees across 32 locations. Their Seattle office, located at 5300 Denver Avenue S, serves the Pacific Northwest with comprehensive HVAC construction, plumbing, and facility services for commercial and industrial buildings. ACCO's Seattle team has completed notable projects including the Adobe Data Center and South Sound Behavioral Health facility. ACCO's energy management division conducts commercial energy audits in accordance with ASHRAE standards, performing Energy Utilization Analysis (EUA) by reviewing 12 months of utility billing data for each meter. Their engineers deploy portable data loggers for HVAC system monitoring, run Building Automation System (BAS) diagnostics, and produce Life Cycle Cost Analysis (LCCA) for investment-grade capital projects. They also assist clients with Energy Star certification and compliance with Seattle's mandatory commercial energy benchmarking ordinance. Services extend to full mechanical system retrofits and commissioning, making ACCO a one-stop shop for large commercial and institutional building owners who need audit, design, and construction under one roof. Their 24-hour service line (800-998-2226) supports facilities with around-the-clock maintenance needs. The company serves exclusively commercial, industrial, and institutional clients — no residential work. ACCO is the right choice for building owners managing large commercial portfolios in the Seattle area who need ASHRAE-compliant audits tied directly into capital improvement planning and mechanical construction capacity. They are particularly strong for data centers, healthcare facilities, and multi-site commercial operators.

ArchEcology, LLC is a woman-owned business that focuses on analyzing sustainable possibilities to identify cost-effective measures for projects, allowing clients to concentrate on development, design, and building. They bring practical and sustainable strategies to conventional design goals. Their team has successfully certified over 150 sustainable projects, totaling over 17 million SF, including multifamily housing, commercial office buildings, industrial buildings, and tenant improvements. They work with both the public sector and speculative developers. ArchEcology supports green building certifications such as LEED, Fitwel, WELL, and ENERGY STAR, as well as Clean Buildings and ESG compliance.

Arup North America, Ltd. is a global firm of planners, designers, engineers, and technical specialists. They offer multidisciplinary services, combining global expertise with local needs. Their Commissioning and Energy Consulting team provides services such as building automation and control systems, whole building energy and sustainability auditing, and HVAC/controls optimization. Arup is known for working on major, press-grabbing projects and is considered a gold standard for quality in engineering. They are dedicated to sustainable development and shaping a more resilient, equitable built environment.

BenchMarx is a construction and material management software designed for contractors and construction businesses. It helps teams streamline tracking and billing processes, ensuring projects stay on schedule and within budget. The software allows users to record project data from the job site, track worker hours, manage equipment, and document material quantities. BenchMarx integrates with contractor accounting tools to eliminate double entry and manual errors.

Blue Ocean Energy Management, established in 2008 and headquartered in Austin, Texas, is a woman-owned company that provides commercial energy consulting services. They specialize in helping clients lower energy costs and comply with city ordinances through building energy monitoring and energy audits. Blue Ocean Energy Management's services include energy audits, benchmarking, ordinance compliance, and the development of long-term energy management strategies. They work with commercial properties, office buildings, hotels, schools, and other commercial facilities. The company's team comprises Certified Energy Managers (CEM), engineers, HVAC-certified specialists, building managers, commercial real estate professionals, and energy auditors. Blue Ocean Energy Management develops and implements energy management strategies, leveraging expertise in EPA's ENERGY STAR® Portfolio Manager. They offer various energy audits, ranging from compliance to comprehensive services with real-time monitoring. Blue Ocean Energy Management distinguishes itself by not selling equipment, software, or retail energy, ensuring that their recommendations are unbiased and aligned with the client's goals. They offer a guarantee, reducing their service fee if they don't reduce energy costs. The company is certified WOSB & EDWOSB with the US Small Business Administration, HUB Texas Certified, and City of Austin Woman-Owned Enterprise Certified. Blue Ocean Energy Management takes a comprehensive approach to energy management, exploring all facets of organizational exposure to energy-related risks and identifying areas for potential improvement. They optimize operational energy efficiency before considering the replacement of capital equipment. They also assist with LEED Certifications and BOMA 360.

EnergyPrint, founded in 2009 and based in St. Paul, Minnesota, provides energy management software and services for commercial buildings. They help building owners, facility managers, and corporations understand their utility consumption and identify opportunities to improve energy efficiency. Their AI-powered platform, Invoiage, accurately extracts data from utility bills, providing clean, structured data for analysis. EnergyPrint's solutions include an energy analytics dashboard, benchmarking, compliance, and ESG reporting, as well as measurement and verification services. They cater to property owners, managers, contractors, and energy professionals across the country.

From The Ground Up Home Inspection, led by Jeff Breco, a Certified Master Home Inspector, offers comprehensive home inspection services in Sammamish, WA, and surrounding areas. With over 12 years of experience, they provide detailed and accurate reports within 24 hours, including photos and descriptions of any issues found. They use state-of-the-art equipment, including thermal imaging, and offer radon and mold testing, as well as drone inspections for inaccessible roofs. They are committed to delivering high-quality inspections tailored to meet the unique needs of their clients, ensuring they have all the information needed to make informed decisions. They provide thorough inspections of all major systems and components of a home, including the foundation, roof, HVAC, plumbing, and electrical systems. They also offer energy auditing services to help homeowners improve their home's energy efficiency. From The Ground Up Home Inspection prides itself on being detail-oriented and spending the necessary time on-site to conduct a complete inspection. They offer flexible scheduling and competitive pricing to accommodate clients' needs. Whether it's a pre-purchase, pre-sale, or restoration inspection, they aim to provide honest guidance and dependable service. Their service area includes Sammamish, Bellevue, Seattle, and other surrounding areas in Washington. Kirk Oren also performs home energy audits for From The Ground Up Home Inspections.

PulseIQ's mission is to serve multifamily properties with energy benchmarking, energy audits, and have the properties utilize our energy management software to provide innovative energy efficiency solutions.

ICS Inspectors, LLC is a national provider of Home Energy Rating Systems (HERS) services, assisting with building code compliance, the 45L Energy Efficient Home Credit, and local energy rebate programs. Their HERS raters are accredited and provide services for ENERGY STAR residential and multifamily programs, Performance Tested Comfort Systems (PTCS), National Green Building Standard (NGBS), and Built Green. With offices throughout the United States, ICS offers nationwide service. They also partner with ENERGY STAR and are a RESNET Accredited Rating provider.

Northwest Infrared Thermal Imaging, led by Level II Thermographer Brent Foster, specializes in non-destructive testing and diagnostics using infrared technology. They help homeowners and contractors identify issues like high energy costs, leaks, and other hidden problems. Their services include thermal imaging and heat loss studies to locate missing insulation, air leaks, and thermal deficiencies, improving energy efficiency and comfort. They also offer moisture intrusion and leak detection using advanced tools, including infrared imaging, to locate hidden moisture issues. Northwest Infrared serves Western Washington.

Abraxas Energy Consulting is a commercial energy efficiency firm with offices across the US including Seattle, WA, specializing in ASHRAE-level energy audits, retro-commissioning, utility bill auditing, and measurement and verification services. The firm serves large commercial facilities, institutional clients, energy service companies (ESCOs), and facility managers seeking to reduce operating costs and meet sustainability targets. All of Abraxas energy auditors and retro-commissioning agents hold at least 10 years of field experience in energy analysis, and all are either Professional Engineers (PEs) or Certified Energy Managers (CEMs). The firm has conducted commercial energy auditing on over 30 million square feet of building stock in the past five years, with expertise in ENERGY STAR benchmarking to comply with city benchmarking ordinances in markets like San Francisco, Denver, and Boulder. Services include ASHRAE Level I, II, and III energy audits, retro-commissioning (RCx) to optimize existing building systems, utility bill tracking and auditing via their proprietary software platform, and measurement and verification (M&V) for energy projects. The firm also provides office support services through their AbraxasFM facility management division. Abraxas operates nationally with offices in Seattle, St. Louis, Tampa, Tucson, Virginia Beach, and Washington DC, among others. They are reached through their national contact line and primarily serve large commercial and institutional clients rather than residential homeowners.

Adapt Engineering is a home energy auditor in Seattle, WA.

Has been serving the Thurston County area for over 15 years with a focus on attention to detail and craftsmanship.

Hawk Environmental Services, founded by Ben Tressel and Dan Ventura, is a locally and independently owned general contractor based in the Pacific Northwest. They specialize in unbiased, third-party testing and inspection services to identify environmental hazards and improve building health and efficiency. Hawk Environmental Services focuses on professional inspection, testing, consultation, and reporting of various indoor environmental conditions. They provide accurate information and ensure compliance with state and local regulations without aggressive sales tactics. The company offers a comprehensive range of services, including mold testing, asbestos testing, lead paint inspections, VOC and chemical testing, indoor air quality assessments, and water quality testing. They also provide energy audits, ventilation assessments, moisture inspections, and custom-tailored testing procedures to meet specific client needs. Hawk Environmental Services aims to deliver practical solutions for healthy indoor environments and safe renovations. Hawk Environmental Services does not provide cleanup, mold remediation, abatement, insulation, or HVAC installation, ensuring impartial and neutral evaluations. They offer custom-tailored inspections and testing to avoid unnecessary services and costs. Hawk Environmental Services also has a division called Hawk Equipment Services, which provides gas detection sensors along with on-site calibration and repair services across all 50 states.

Offers Infrared (IR) Scan services in Seattle, Renton, and Kent, using advanced thermal imaging to detect differences in temperature around the home.

Evergreen Home Heating and Energy, operating since 1975, provides HVAC services in the Seattle and Puget Sound area. They focus on energy-efficient home heating, cooling, water heaters, and air quality solutions, aiming to lower energy bills, reduce environmental impact, and increase home comfort. As a Mitsubishi Electric Diamond Contractor, they offer some of the most efficient and innovative products available. They provide 24/7 repair services.

Energy Savers, Inc. is dedicated to improving home energy efficiency by providing top brands and premier customer service. Located in East Syracuse, NY, they serve multiple counties in the area. They offer services for residential retro and new construction, as well as commercial projects. They focus on helping customers save money on utility bills by upgrading to the latest furnaces and air conditioning systems.

Bright Power, Inc. is a company that provides energy and water management services to real estate owners, investors, and operators. They offer practical solutions to reduce waste, improve cash flow, enable energy law compliance, and enhance building occupant comfort. Their services include energy audits, solar energy solutions, green building practices, and construction management of energy improvements. Bright Power aims to accelerate the transition to a zero-carbon future by optimizing building performance and empowering clients with data-driven insights and smarter energy plans. They specialize in multifamily apartment buildings, working with almost 2 million units across the nation.

Brightworks Northwest LLC is a sustainability consulting firm that helps organizations increase asset value, mitigate risk, and improve their competitive edge through strategic sustainability planning. Founded 10 years ago, they work with over 100 organizations and engage and inspire workforces through education. They serve commercial, industrial, and residential building types.

Chemp Energy Management LLC offers outsourced energy and sustainability management services, along with energy project management and engineering management. They cater to commercial and industrial buildings, providing solutions for energy efficiency and sustainability.

Smart PNW is a completely independent, third party available to you for air and duct leakage inspections for new and existing houses.

Evergreen Compressed Air and Vacuum is a distributor and dealer of industrial air compressors, serving the greater Seattle, Tacoma, Everett, and Olympia regions. They focus on providing efficient compressed air solutions, parts, air dryers, and vacuum system components. Their services include sales, repair, and maintenance, with a commitment to energy reduction, environmental conservation, and dependability. They offer 24/7 emergency support for immediate repair needs.

Blower Door Testing NW provides independent, third-party blower door and duct leakage testing for new and existing homes across Western Washington. They serve areas from Olympia to Bellingham, including Tacoma, Seattle, Bellevue, Kirkland, and Everett. They perform air leakage tests for single and multi-family buildings, with BPI-certified technicians who document findings if a test doesn't pass. They also offer pre-test consultations to help identify and address potential issues before the final inspection.

WA Blower Door offers expert blower door testing services for new construction projects to ensure energy efficiency and airtightness.

4 Seasons Home Inspections is a Seattle-based home inspection company serving the greater Puget Sound area including Bellevue, Tacoma, Everett, Renton, Federal Way, Burien, Kent, and Kirkland. The company has been in business since 2012 and holds Certified Master Inspector credentials. 4 Seasons offers buyer inspections, seller pre-listing inspections, sewer inspections, thermal imaging, new construction inspections, and warranty inspections. Their thermal imaging service detects moisture in walls and ceilings, identifies air leaks and energy loss points, and can reveal plumbing issues not visible to the naked eye. While not marketed as a standalone energy audit firm, their thermal imaging capabilities provide homeowners with actionable energy efficiency insights. The company is led by owner Jay Szczesny and maintains an A+ BBB rating. With 250 reviews on Yelp and a 4.5-star average across review platforms, 4 Seasons is consistently rated as one of the top home inspection companies in Washington state. Customers highlight thorough inspections, detailed reports, clear communication, and professional demeanor. 4 Seasons provides online report access and sample reports on their website. Their inspections typically take 3-4 hours for a complete interior and exterior property assessment, and include maintenance and energy conservation recommendations tailored to each home.

Independent Home Energy Audits for comfort, health, and savings using Infrared camera & computer modeling.

Hot Water Solutions NW is an initiative of the Northwest Energy Efficiency Alliance (NEEA) that focuses on accelerating the adoption of heat pump water heaters in the Northwest. They provide resources, tools, and support to increase sales and installations of heat pump water heaters. Their efforts include collaborating with the supply chain and Northwest utilities, offering data and technical guidance, and conducting training and promotions. The goal is to promote efficient water heating technologies that enhance everyday life for Northwest residents.

Energy Star is a government-backed program of the Environmental Protection Agency (EPA) and the Department of Energy (DOE). It provides a symbol for energy efficiency, helping consumers and businesses make informed decisions. Since 1992, Energy Star and its partners have helped American families and businesses save 5 trillion kilowatt-hours of electricity. DOE and EPA signed an updated agreement on March 3, 2026, naming DOE as the lead federal agency.

2RW Consultants, Inc. is a MEP/FP (Mechanical, Electrical, Plumbing, and Fire Protection) engineering firm with over 40 years of experience in green building, sustainable design, and energy-efficient solutions. While headquartered in Charlottesville, Virginia, the firm serves clients nationally including the Seattle market, with additional offices in the DC Metro area and Richmond. 2RW specializes in energy and water conservation audits, energy consumption modeling and simulations, facility condition assessments, measurement and verification services, commissioning, and sustainability planning. Their portfolio includes over 70 LEED projects, and one-third of their technical staff holds LEED credentials. They serve educational institutions, healthcare facilities, commercial buildings, and residential developments. The firm employs Certified Energy Managers (CEM), LEED AP BD+C professionals, Professional Engineers (PE), and Certified Plumbing Design Technicians. 2RW is SWaM-certified (Small, Women, and Minority-Owned) through the Virginia Department of Small Business and Supplier Diversity, and maintains memberships in over 20 professional organizations including ASHRAE, ASME, ASPE, IEEE, and the U.S. Green Building Council. 2RW's approach covers every phase of a building's lifecycle from assessment and conceptual planning through design, construction, and long-term building management. Their focus on reducing total cost of ownership makes them a strong fit for institutional and commercial clients looking for comprehensive energy consulting rather than basic residential audits.

AESC, Inc. is a home energy auditor in CA.

Al Cunningham, C.E.M. is a home energy auditor in Woodinville, WA. Services qualify for DOE 25C tax credit eligible federal tax credits.

Ambient Energy LLC is a renewable energy company based in Tacoma, Washington, serving the greater Seattle-Tacoma metro area. Founded in 2005 and operating for over 20 years, the company is led by Michael Lindberg and focuses on renewable energy solutions for residential and commercial clients in the Pacific Northwest. The company operates out of 222 E 26th St, Suite M1, Tacoma, WA 98421, positioning itself to serve both Tacoma and the broader Seattle corridor. As a limited liability company with two decades of regional experience, Ambient Energy brings deep familiarity with Washington state energy programs and the specific climate challenges of the Pacific Northwest. Ambient Energy holds an A+ rating with the Better Business Bureau, reflecting a clean complaint history over its years of operation. The company is registered with BBB Great West + Pacific, though it is not a BBB-accredited business. For homeowners and businesses seeking renewable energy upgrades in the Tacoma-Seattle area, Ambient Energy offers localized expertise and a long track record. Prospective clients should contact the company directly to confirm current service offerings, pricing, and availability.

EcoCosm, Inc. is a design/build energy engineering and technology company that provides commercial energy efficiency solutions. They serve commercial building and industrial facility owners and managers, assisting them in eradicating energy waste and optimizing their sites. EcoCosm aims to help clients reduce their energy costs and environmental impact by engineering and implementing energy projects. They offer services such as energy audits, retro-commissioning, HVAC and control upgrades, and smart building technologies to help clients achieve Net Zero and ESG objectives. The company's mission is to drive decarbonization through commercial energy efficiency projects. They offer end-to-end energy solutions that save time and money, helping clients meet increasingly robust ESG requirements and Net Zero goals while cutting operating costs. EcoCosm's services include benchmarking, building engineering design, and decarbonization. They also offer an Energy Connect Operating System (ECOS) to continuously track performance. EcoCosm has delivered projects for clients owning over 200 million ft2 of building space, resulting in over $10 million per year in energy cost savings. They utilize tools such as building automation systems and geothermal and solar technologies. The company's founder and CEO, Justin Tiedemann, has over 20 years of experience managing and delivering new construction projects. EcoCosm has offices in Northern California (San Francisco) and Southern California (Newport Beach). They focus on providing regenerative strategies for sustainable growth, engineering solutions that benefit the bottom line, increase asset value, and reduce environmental footprint.

Energy auditors conduct energy audits of residential and commercial buildings to identify energy-saving opportunities. They help residents identify energy efficiency measures that save money, make homes more comfortable, and help the environment. Auditors use specialized equipment and advanced diagnostic tests to measure energy use and assess building and HVAC systems. They provide recommendations for improvements and work closely with clients to explain findings and develop plans for implementing energy-saving improvements. Energy auditors, also known as energy raters or energy consultants, help prevent energy waste by inspecting buildings to find areas of air leakage and advising customers on how to fix and prevent leaks. They may work full-time for utility companies or be self-employed, hired by homeowners or commercial building owners. By reducing energy waste, auditors lower overall energy consumption, benefiting the environment. In Austin, Texas, some energy auditors specialize in ECAD (Energy Conservation Audit and Disclosure) audits, which are required for homes being sold that are 10 years or older and within Austin city limits. These audits provide buyers with a detailed report on the home's energy efficiency, covering insulation levels, ductwork leakiness, HVAC system performance, and windows. Certified Energy Auditors (CEAs) undertake energy efficiency assessments of large buildings and industrial facilities, covering building systems, occupancy, operations, maintenance, and code compliance. They provide detailed survey results, risk mitigation analysis, implementation plans, and investment-grade analysis.