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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon25
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Aurora - Updated Nov 2026

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

Serving Aurora, 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
6 neighbors recently requested a quote
Recommended by96%of homeowners
Bestway Insulation, LLC
4.1(
286
)
Home Energy Audit

Serving Aurora, 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
18 neighbors recently requested a quote
Recommended by79%of homeowners
Standard Renewable Energy
3.0(
4
)
Home Energy Audit

Serving Aurora, 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
Avatar for G3 Services
G3 Services
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Aurora, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Welcome to [G3 Inspection Services, your trusted partner for professional home and business inspections. Whether you are purchasing a new home, selling a property, managing a commercial building, or simply want to understand the condition of your investment, our goal is simple: to provide you with clear, honest, and detailed information you can rely on.

1 neighbors recently requested a quote
Avatar for Energy Geeks, LLC
Energy Geeks, LLC
4.6(
28
)
Home Energy Audit

Serving Aurora, CO and surrounding areas

In business since 2007

Free estimates

Warranties offered

"Delightful team tor work with, provided an energy audit and walked me through the reading and allowed me to look over their shoulder while audit was been performed. "Geeked" out and a great company, would hire again and many referrals to come."
Air Sealing on Rim Joists
InsulWeb Dense Pack in progress
Insulweb Fiberglass Dense Pack
Energy Audit with Infrared Survey
Response time2 days
Recommended by95%of homeowners
Avatar for Simple Home Energy Solutions
Simple Home Energy Solutions
4.5(
67
)
Energy Audit - For BusinessHome Energy Audit

Serving Aurora, CO and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"I chose Simple Home Energy Solutions after getting several bids for doing spray foam in the attic. His experience was clearly superior to the other contractors. Robert identified several problems right away (missing insulation, mold in attic and squirrel nests) and was able to redo the insulation in the time frame I needed. He communicated with me throughout the process and made sure any problems we found were addressed. I would definitely work with him again for future insulation work."
Response time4 days
Recommended by96%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

There are several strategic ways to lower your home insurance premium. The primary one is to shop around and get quotes every few years to make sure you’re getting the best deal. Also, sometimes bundling your auto and homeowner’s insurance will get you a discount on both. Finally, try to keep your credit score up; many homeowner insurance companies use credit scores to generate quotes.

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.

Yes, including optimizing settings and suggesting upgrades if needed.

Yes, mini-split or ductless AC systems add value to a home and do not devalue it. They are an attractive feature for potential buyers, especially in older homes without existing ductwork, as they provide a practical air conditioning solution without the significant expense and hassle of installing traditional ducts. Ductless systems also eliminate issues associated with conventional ductwork, such as noise and the potential for pests. Furthermore, homeowners value energy-efficient solutions, and mini-splits offer high efficiency for both heating and cooling, plus zoned temperature control. This leads to lower energy consumption and reduced electric bills, which is a major selling point.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

The Aurora, 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.