Building Doctors
Reviews
4.7 stars on Yelp with 38 reviews. Clients report energy bill reductions of up to 40%. Praised for professionalism, transparency, thorough reporting, and no bait-and-switch tactics. Led by Dan Thomsen, who is described as extremely knowledgeable about rebate programs and building science. 2013 Home Performance Contractor of the Year.
Contact & Hours
About Building Doctors
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.
Service Menu
| Service | Price |
|---|---|
| Blower Door Test | Call for pricing |
| Thermal Imaging | Call for pricing |
| Whole Home Audit | Call for pricing |