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TRUSTED BY JOHNSTOWN, CO HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon12
    Verified energy efficiency auditing services reviews

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

Bestway Insulation, LLC
4.1(
286
)
Home Energy Audit

Serving Johnstown, 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
20 neighbors recently requested a quote
Recommended by79%of homeowners
Energy Slayers
5.0(
1
)
Home Energy Audit

Serving Johnstown, CO and surrounding areas

Approved

In business since 2023

Free estimates

Customers say: Quick response

We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients; we take great care to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Certified Aeroseal Dealer
Response time10 mins
Recommended by100%of homeowners
Avatar for Hemker Inspections
Hemker Inspections
5.0(
5
)
Home Energy Audit

Serving Johnstown, CO and surrounding areas

Free estimates

Warranties offered

Credit card accepted

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today! \n

Avatar for Aire Serv of Northern Colorado
Aire Serv of Northern Colorado
4.7(
12
)
Energy Audit - For BusinessHome Energy Audit

Serving Johnstown, CO and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I recently got estimates from a half-dozen HVAC companies for the installation of a full ducted heat-pump system into an home that did not have it - a retrofit. Though I ultimately chose a different company for the project, AireServ really impressed me with the quality of their proposal. I submitted a request on their website and they called me about one minute later. They came out the next morning. They were good listeners and the system they recommended was exactly what I wanted (in contrast to several competitors). They evaluated my house thoroughly, looking at all aspects of exactly how the system would be installed, as well as sizing the system properly with all factors considered. The price they quoted me was not the lowest, but it was far from being the highest. If you are considering a project, I recommend at least getting a bid from these guys."
Recommended by85%of homeowners
Financial Energy Management, Inc.
New to Angi
Energy Audit - For Business

Serving Johnstown, CO and surrounding areas

In business since 1986

Free estimates

At Financial Energy we provide a variety of energy efficiency services including audits, energy efficient retrofit construction, efficient lighting design, and window solar film installation. Equipped with this in-house capability and expertise, we can implement a cost effective, energy efficient solution customized for your facility. \n \nFinancial Energy is a comprehensive independent service provider, making us both unique and dynamic. \n \nCall today for a free estimate!

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Energy Efficiency Auditing FAQs, answered by experts

Yes, energy-efficient options such as LEDs and solar-powered lights are available. These alternatives consume less electricity, resulting in lower utility costs. They are also more environmentally friendly due to their reduced carbon footprint and longer lifespan.

There is no blanket figure for a residential home’s electrical load, since load varies by the size of the home, how many appliances are used, and the efficiency of their electrical systems. Typically, however, it’s safe to assume 40 to 60 amps is the average electrical load of a residential home. 

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.

Attic and whole-house fans improve a home's energy efficiency and comfort. They ventilate hot air from the attic, which reduces peak cooling loads, lowers reliance on air conditioning, and decreases indoor temperatures. This improved air circulation and expedited heat exit helps lower cooling costs, balance moisture levels, and enhance overall natural airflow, contributing to the efficient operation of other home equipment.

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

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

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