Best Auditors in Los Angeles, CA

Building Doctors is a Los Angeles-based home performance contractor established in 2002 that specializes in energy audits and efficiency upgrades. Led by Dan Thomsen, the company was the first participating contractor in the LA County Energy Upgrade California program and has won multiple awards including 2013 Home Performance Contractor of the Year. Their team of BPI-certified building analysts uses diagnostic equipment including blower door tests, duct blasters, and thermal imaging to deliver comprehensive whole-home energy assessments. The company handles everything in-house — from the initial energy audit through insulation installation, air sealing, HVAC work, and solar. They hold a California Contractors State License and an HVAC license, which means they can diagnose problems and fix them without subcontracting. Their audits include HERS (Home Energy Rating System) reports and energy modeling, giving homeowners a clear picture of where their money is going and what upgrades will deliver the best ROI. Building Doctors serves both residential and multi-family properties across Southern California. For multi-family buildings, they conduct eight-step performance audits covering lighting, HVAC systems, combustion safety, and water heating efficiency. They help clients navigate rebate programs through Energy Upgrade California, with potential rebates ranging from $1,000 to $6,500 depending on the scope of improvements. With a 4.7 rating on Yelp (38 reviews) and glowing testimonials, Building Doctors has built a reputation for transparency and results. One client reported a 40% drop in energy bills after their retrofit. The team is consistently praised for professionalism, thoroughness, and avoiding the bait-and-switch tactics common in the industry.

JO Solar Designs is committed to providing excellent service in every aspect of their business. They uphold a standard of integrity, fairness, honesty, and personal responsibility. The company focuses on delivering accurate knowledge and skilled ability to customers, prioritizing their interests and concerns.

California Skyline Remodeling, Inc., established in 2006, is a family-owned and operated general construction company serving Southern California. They are a licensed, bonded, and insured renovation company that provides personal attention to clients. The company specializes in kitchen and bathroom remodels, room additions, garage conversions/ADUs, solar installations, and roofing services. They pride themselves on reliability, great communication, integrity, and quality work, striving to educate clients throughout their projects. California Skyline Remodeling excels in various designs, including Mid-Century, Traditional, Contemporary, Ranch Style, Modern, and Country French. They offer a wide range of services, including design and construction, site acquisition, and selection styles. The company emphasizes superior customer service and aims to provide quality regardless of budget. They handle every aspect of home remodeling, from initial design to final touches, ensuring a unified and stress-free experience. The company is committed to delivering high-quality craftsmanship, using the best materials and latest techniques. They also offer eco-friendly options to improve energy efficiency, such as energy-efficient windows, insulation, and HVAC systems. With over 15 years of experience, California Skyline Remodeling aims to transform houses into dream homes across Southern California. They assign a dedicated project manager to each project to ensure expert execution and attention to detail. The company also offers free estimates and speaks Spanish.

NRG Clean Power, established in 2016, is a residential solar installer focusing on providing renewable energy solutions to residents in California and Texas. With over 30 years of experience, they offer solar panel installations, battery storage systems, and EV charging stations. They also offer roof replacement services to ensure the roof's integrity before solar installation. NRG Clean Power emphasizes customer satisfaction, transparent pricing, and high-quality equipment, striving to make solar energy accessible and affordable.

Based in North America, Index Energy is an investment company focused on renewable energy projects since 2007. They strategically invest in woody biomass-fed power plants, deep-sea offshore wind turbines, and yard waste recycling facilities using innovative technologies. Their initial energy investment involved developing the Ajax Cogeneration Steam Plant near Toronto, Canada. Index Energy prefers complex development projects with financial, structural, and logistical needs, leveraging their knowledge in renewable energy and associated sectors to create development potential.

Partner Energy is a nationwide provider of energy efficiency engineering, sustainability, and resiliency consulting services. Founded in 2009, they offer services for existing buildings, new construction, and adaptive reuse projects. Their team includes professional engineers, architects, sustainability consultants, commissioning professionals, and building scientists. Partner Energy aims to help clients identify and implement energy efficiency, renewable energy, and sustainability projects that align with their business goals. They offer services such as energy audits, benchmarking, energy modeling, retro-commissioning, and green building certifications. Partner Energy works with real estate owners and managers, lenders, government agencies, higher education institutions, developers, architects, utility providers, and ESCOs. They provide services like energy and water audits, decarbonization audits, green building certifications, utility data collection, carbon accounting, property resilience assessments, and ESG reporting. They focus on delivering fiscally sound solutions that improve sustainability, lower ownership costs, and increase asset value. The company culture emphasizes a healthy work-life balance and rewards entrepreneurship. They support professional development through continuing education and training. Partner Energy is a division of Partner Engineering and Science, Inc. Partner Energy has offices in Newark, New Jersey, New York City, and Southern California, with a network across the nation. They serve clients in all 50 states.

ELEM3NTS is an independent consulting company committed to improving home performance and containing energy costs through state-of-the-art technologies and innovative techniques. They conduct thorough home energy audits and tests to identify areas of energy loss and opportunities for improvements. ELEM3NTS collaborates with homeowners to create plans for heightened efficiency, providing guidance through various rebate programs to unlock incentives and save money. They aim to contribute to a sustainable, carbon-free California by 2045. According to ELEM3NTS, a home energy assessment only needs to be done every 20 years.

Objective is to qualify and quantify how a building's energy using systems are performing.

Greencat is a California-based construction company with over 35 years of experience, specializing in residential and commercial energy-efficient retrofits, low-income weatherization programs, and insurance fire and flood restoration. They also handle energy-efficient new construction and participate in local, state, and federal rebate programs. Greencat aims to make homes healthier, more comfortable, and less expensive to live in, while also reducing energy and water consumption. They focus on a 'whole home' approach, tailoring solutions to each project. Greencat's services include air sealing, heat pump water heaters, insulation, whole house fans, and window replacements. They are a licensed contractor for electrical, glazing, heating and cooling, insulation, and solar projects. The company emphasizes customer satisfaction, quality, and dependability, encouraging potential clients to check their testimonials and Google reviews. Greencat serves Los Angeles, Orange, Western Riverside, and Western San Bernardino Counties. They offer solutions to improve indoor air quality, increase energy efficiency, and reduce carbon footprint. Greencat also helps homeowners navigate available rebates to reduce the cost of home upgrades. With a strong focus on customer service, Greencat's team is known for being professional, polite, and efficient. They take the time to explain the process and answer any questions, ensuring a smooth and satisfactory experience for their clients.

Dena Energy is an energy engineering firm that provides consulting and audit services across industrial, commercial, and multifamily building sectors. They offer energy efficiency audits, decarbonization planning, and energy benchmarking services for ordinance compliance in California, including AB 802, San Jose (BPO Beyond Benchmarking), and Los Angeles (LADBS EBEWE). The firm specializes in mechanical energy systems and provides services such as energy benchmarking reports, energy efficiency audits, and energy management for industrial and commercial facilities. They also offer strategic energy management, carbon footprint assessment, utility bill audits, and fleet electrification planning. Dena Energy differentiates itself through an independent engineering perspective, deep experience in energy modeling and demand analysis, a strong understanding of incentive program requirements, industrial and commercial system expertise, and data-driven decision making.

Moore Solar & Green Construction is a family-owned and operated business specializing in residential and commercial solar systems and green construction practices. They have been installing solar panels since the 1980s and have extensive experience in thermal solar as well as photovoltaic systems. Moore Solar prepares and files all paperwork necessary for applications with utility companies and submits for any available rebates. They are not bound to use a specific brand of panels or inverters, offering various options to suit customer needs and budgets. Moore Solar also focuses on green construction practices to save money, energy, and protect the environment.

Mulholland Brand is a manufacturer and installer of custom-built, high-quality, low-maintenance aluminum gates, fences, railings, and pergolas. With over 25 years of experience, they focus on providing beauty, value, and peace of mind to residential and commercial properties. They offer a wide range of styles and fully custom products, allowing customers to create a cohesive look across their entire property. Mulholland Brand prides itself on being cost-effective, providing quality work, and being reliable throughout the entire process.

HERS Rater Now is a family-owned business serving the greater Bay Area, specializing in ductwork, duct sizing, and duct layouts. Adam Guzman, the founder, has been in the HVAC industry since 2006 and started the company to address poorly sealed duct systems. They are dedicated to providing high-quality service at affordable rates, focusing on helping people breathe cleaner air with added comfort. HERS Rater Now offers services for various structures, from apartments to large industrial buildings. They are known for their professionalism and commitment to going above and beyond.

A Class HERS Raters is a Los Angeles-based energy rating and building inspection company specializing in HERS testing and Title 24 compliance for residential properties. Led by Arman Zmrutyan, they are certified whole house raters capable of completing all HERS testing and inspections in accordance with California Title 24 guidelines and regulations. Their services cover a wide range of energy efficiency testing including HERS ratings, Title 24 verification, duct leakage testing, refrigerant charge and airflow testing, air balancing, indoor air quality assessments, and Quality Insulation Installation (QII) verification. They also handle CF-2R and CF-3R certification forms required for California building compliance. The company uses state-of-the-art equipment and industry-standard protocols for all testing. A Class HERS Raters operates out of Koreatown in Los Angeles (90004) with hours Monday through Saturday, 8 AM to 7 PM. They guarantee same-day paperwork upon completion of inspections, which is a significant advantage for contractors on tight construction schedules. The company has earned strong reviews on Yelp with 17 reviews, and is active on Alignable for local business networking.

Offers free online and in-home energy assessments with expert advice and free energy-saving products.

Gilleran Energy Management, established in 2002, is a California-based energy and sustainability consulting firm. They collaborate with architects, developers, builders, and public agencies to ensure projects meet code requirements, function efficiently, and support long-term sustainability objectives. Recognized as one of the top sustainability consulting firms in California, Gilleran Energy Management focuses on clarity, collaboration, and long-term value, offering solutions that meet energy efficiency and sustainability goals without unnecessary complexity. The firm provides a range of services, including energy efficiency consulting, green building consulting, and building commissioning. They work with various industries, including commercial properties, apartments and subdivisions, and homeowners, offering expertise in areas like energy audits, building performance evaluations, and Title 24 compliance documentation. Gilleran Energy Management aims to improve building performance, increase comfort, and reduce utility bills through sustainable practices integrated early in the design process. They offer services such as all-electric building energy analysis, building energy modeling, and performance testing (BPI, Title-24, CALGreen, HERS). Gilleran Energy Management also assists with green building certification programs like LEED and ENERGY STAR. The company serves areas throughout California, including Sacramento, Los Angeles and San Francisco.

CalRATERS Energy Solutions, operating since 2006, serves the Bay Area, providing home energy testing and audits to homeowners and contractors. They offer unbiased energy audits and testing, focusing on solutions rather than selling products or performing upgrade work themselves. CalRATERS helps clients navigate issues like high energy bills and inefficient equipment, offering services such as blower door testing, duct leakage testing, and infrared imaging. They also assist with navigating rebate programs. CalRATERS takes a whole-home approach to energy audits, providing in-depth analysis of a home's energy usage. Their certified team stays updated on industry changes through weekly meetings and uses high-calibrated equipment for testing. They identify leaks in windows, doors, and other areas to pinpoint energy inefficiencies. CalRATERS aims to help homeowners make informed decisions about energy upgrades, working with state programs and offering free Home Energy Scores. They focus on creating healthier, more comfortable, and energy-efficient homes. CalRATERS is a Diamond Certified company, recognized for high quality and helpful expertise. They cater to both homeowners and contractors, providing Energy Code Compliance (ECC) testing and Title 24 compliance. CalRATERS delivers ECC certificates quickly and assists with rebate processing and permit coordination.

Poppy Energy focuses on high quality HERS testing in Los Angeles, CA and everywhere we service customers.

Gilleran Energy Management (GEM) is a California-based energy and sustainability consulting firm that has been providing services since 2002. They collaborate with architects, developers, builders, and public agencies to ensure projects meet energy code requirements, function efficiently, and support long-term sustainability. GEM offers expertise in green building programs such as Title 24, LEED, and GreenPoint Rated. They provide tailored sustainability planning and proactive energy efficiency solutions for residential, commercial, and industrial projects. GEM also focuses on integrating sustainable practices early in the design process to reduce operational costs and improve occupant comfort.

PARAVANT Architects is an architecture and design firm located in Los Angeles, California, specializing in environmentally conscious design and building to the international Passive House construction standard. With experience in the U.S., Central America, Asia, the Middle East, and Europe, they offer an international, multifaceted approach to design. The firm is known for its innovative designs and commitment to sustainability, creating buildings that are energy-efficient, comfortable, and have superior indoor air quality. They focus on passive heating and cooling strategies and utilize renewable energy sources.

I am unable to find enough reliable information about CalRATERS to create a comprehensive profile. More specific location details or a known website would be needed to accurately represent this business.

MSE Environmental is a consulting firm that specializes in environmental inspections, testing, and monitoring. They cater to insurance carriers, healthcare facilities, government entities, retail, financial institutions, facility managers, property managers, adjusters, general contractors, restoration contractors, and hospitality verticals. With over 20 years of experience, they offer services such as mold, asbestos, lead, sewage/bacteria, and Legionella testing, as well as water damage and indoor air quality consulting. MSE Environmental aims to protect the health, safety, and compliance of residential and commercial clients through transparent communication, accurate reporting, and expertise in environmental hazards. They also focus on solving compliance issues related to healthcare, such as Legionella testing and USP 797/800 compliance.

Landmark Construction & Development Group Inc. offers comprehensive construction services, specializing in both residential and commercial projects. With over 60 years of experience, their team delivers quality craftsmanship and tailored solutions, managing projects from concept to completion. They have a diverse portfolio including apartment complexes, hospitality facilities, offices, warehouses, medical spaces, retail, restaurants, and religious venues. Landmark is known for building excellence across the Southeast, serving clients with integrity and a commitment to customer satisfaction.

The Los Angeles Department of Water and Power (LADWP) is the largest municipal utility in the United States, providing water and electricity to the city of Los Angeles and several adjacent communities. Established in 1902, LADWP serves over four million residents and local businesses. They deliver an average of 435 million gallons of water per day and have 8,100 megawatts of electric generating capacity. LADWP offers a variety of services including residential, commercial, and construction services. They are committed to renewable energy programs and water conservation efforts. LADWP also focuses on helping customers manage the impacts of extreme heat through programs like Cool LA. LADWP is overseen by the Los Angeles Board of Water and Power Commissioners, who are appointed by the Mayor of Los Angeles. The board sets policies for the department, including utility rates and renewable energy projects. LADWP aims to provide reliable and affordable services while maintaining environmentally responsible practices. They also offer various payment options to make paying bills more convenient, including online payments, automatic payments, and payments by phone. LADWP provides resources and expertise to support construction needs and offers programs to support business needs.