Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Boulder, CO

Enter your zip and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Boulder, CO?

Select your specific project to find the pro for you.

TRUSTED BY BOULDER, CO HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon12
    Verified energy efficiency auditing services reviews

Verified Reviews for Energy Efficiency Auditing pros in Boulder, CO

*The Angi rating for Energy Efficiency Auditing companies in Boulder, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Boulder, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on August 28, 2026

Find Energy efficiency auditors in Boulder

Avatar for REenergizeCO, Inc.
REenergizeCO, Inc.
4.4(
151
)
Home Energy Audit

Serving Boulder, CO and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Scheduling an appointment for my home energy audit was easy. They had plenty of available times within the next week so that was great. They arrived on time and got right to work. I would hire them again."
Insulation vs effective R-value
Existing attic insulation from 1970's Denver Home
Attic blown to R49 with loose fill fiberglass
Thermal imaging picture of open interior wall
Picture from the attic looking at the open wall.

+2

Response time4 hrs
4 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Bestway Insulation, LLC
4.1(
286
)
Home Energy Audit

Serving Boulder, CO and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing and compressing fiberglass or rockwool in the walls and Dense packing it tight.Where most companies are happy getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2021. Home Performance with energy star Contractor of the year 21 out of 23 Years starting with NREL when they were doing it in 1996. I want huge results for my clients.

Response time1 day
19 neighbors recently requested a quote
Recommended by79%of homeowners
Request Quote
Standard Renewable Energy
3.0(
4
)
Home Energy Audit

Serving Boulder, CO and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Credit card accepted

"My experience with Standard Renewable Energy was fantastic in every way. I got an amazing insulation job for the price and now my house is so warm! Everyone I dealt with from SRE (from the salesperson to the technician) was so nice and professional. I have already told all my friends and neighbors about this company...outstanding customer service!!!"
Recommended by66%of homeowners
Request Quote
Avatar for Ideal Home Energy
Ideal Home Energy
5.0(
7
)
Energy Audit - For BusinessHome Energy Audit

Serving Boulder, CO and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"It went great. We've noticed a huge improvement. The work was done exactly as scheduled, and the crew were nice and excellent workers. There was one issue that came up but owner fixed it and I'm very happy with the service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by100%of homeowners
Request Quote
Showing 1-10 of 27
Energy Efficiency Auditing questions, answered by experts

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

R-value measures an insulation material's thermal resistance, indicating its ability to resist heat transfer. A higher R-value signifies better insulation performance because the material is more effective at slowing heat flow. The R-value depends on the type, thickness, and density of the insulation material, such as fiberglass, foam, or cellulose. Each inch of insulation typically provides an R-value between 3 and 8. There is no single universal R-value; the optimal choice depends on your climate zone. Colder climates require a much higher R-value than warmer ones to maintain energy efficiency, keep the home warm in winter and cool in summer, and manage costs.

Yes, including optimizing settings and suggesting upgrades if needed.

Yes, Tesla Powerwalls are worth the upfront costs, as you can recoup your investment within six to eight years. Plus, they provide peace of mind that you'll have power during a power outage, and, depending on the system you install, you can become energy-independent. While they may be more expensive than other solar power systems, they offer higher battery capacity and lifespan.

Energy-efficient windows are judged on their performance according to a few different factors, including heat transfer, air leakage, light transference, and condensation resistance. If you're unsure whether a window is energy-efficient, look for an ENERGY STAR® label from the U.S. Environmental Protection Agency (EPA). If various products, including windows, meet energy-efficiency standards set by the federal government, the EPA issues this label to help consumers identify energy-efficient products.

The Boulder, CO homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles