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*The Angi rating for Energy Efficiency Auditing companies in Roundup, MT 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 Roundup, MT 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 May 31, 2026

Find Energy efficiency auditors in Roundup

Avatar for Solid Ground Property Services, Inc
Solid Ground Property Services, Inc
5.0(
7
)
Energy Audit - For BusinessHome Energy Audit

Serving Roundup, MT and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"Shawn came to work on my washing machine that wasn’t operating. When the first repair didn’t fix the problem, he did more research and came back with another part that fixed the problem. I appreciate his communication about scheduling and about ordering necessary parts. I appreciate his commitment to solving the problem. And, I appreciate his work ethic. I would recommend Shawn to anyone in need of handyman type repair."
Bathroom Tilework
Bathroom Tilework
Bathroom Tilework
Bathroom Tilework
Bathroom Tilework

+11

4 neighbors recently requested a quote
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Avatar for Stillwater Home Inspections
Stillwater Home Inspections
5.0(
2
)
Energy Audit - For Business

Serving Roundup, MT and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"Cooper provides excellent customer service and helped us find things in the home that helped us get a lower price."
Response time3 hrs
Recommended by100%of homeowners
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Avatar for Big Sky Property Inspections, LLC
Big Sky Property Inspections, LLC
5.0(
1
)
Home Energy Audit

Serving Roundup, MT and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

"He was amazing and professional. He came up with over 50 pages of pictures of everything that was going wrong. He brought a lot to my attention that my realtor didn't."
Response time10 mins
Recommended by100%of homeowners
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Avatar for Planetary Systems, Inc.
Planetary Systems, Inc.
0.0(
3
)
Home Energy Audit

Serving Roundup, MT and surrounding areas

In business since 1994

Free estimates

Credit card accepted

Planetary Systems has been designing and installing renewable energy systems since 1994, and has over 1600 operational systems from .5kw to 22kw, worldwide. We have always been and remain committed to tested and reliable, yet cutting edge technologies to advance local power generation capabilities. We firmly believe all electrical power should be locally generated and using as much energy as practically feasible from wind, solar, hydro-electric and other renewable sources. \n Planetary Systems offers our own battery technology, integrated power solutions, and the best available products available in the world marketplace.\n\nOur offerings are based on value-added products, not bargain basement prices, and include complete testing, design and integration of systems plus expert technical assistance.

Grid-tie sell back power system
Gird-tie sell-back power system
Off-grid power system
Grid-connected back power
Pole mounted solar arrays

+7

Recommended by100%of homeowners
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Avatar for TCH Builders & Remodeling
TCH Builders & Remodeling
4.0(
2
)
Energy Audit - For BusinessHome Energy Audit

Serving Roundup, MT and surrounding areas

In business since 1999

Emergency services offered

Credit card accepted

If you dream it, we can build it. What's the biggest difference between us and them? We build to last! We offer a full line of Green and Energy Star Certified products, backed by our labor and manufacturer's lifetime transferable warranties. Credit Cards Welcome Financing Available OAC.

Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

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.

Costs depend on the property size, audit complexity, and whether additional testing (e.g., blower door) is included.

Energy-efficient windows cost more than other window types, but they can help you save on your monthly energy bills, get you some breaks on your taxes, and even increase the value of your home. According to Michael S. Regan, Administrator of the U.S. Environmental Protection Agency, when people invest in green upgrades like energy-efficient windows, they save energy, money, and more.

Leaving lights on raises the electric bill, but not as much as having high-wattage light bulbs. The best way to save on electric costs is to swap your light bulbs to LED or CFL bulbs that use far fewer watts. You can also use smart lights and light switches to control usage via a smartphone or voice-controlled device.

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

The Roundup, MT homeowners’ guide to energy efficiency auditing services

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