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*The Angi rating for Energy Efficiency Auditing companies in Manhattan, 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 Manhattan, 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 July 28, 2026

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

Avatar for Polar Aire LLC
Polar Aire LLC
5.0(
3
)
Energy Audit - For BusinessHome Energy Audit

Serving Manhattan, MT and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Daniel was prompt, careful and went the extra distance to get my heating and hot water system replaced as the weather was turning cold. He did an excellent job and I recommend him highly."
750 cfm Make Up Air System
Fresh air electric heater
750 cfm Make Up Air System
Additional Photos
Additional Photos

+1

Recommended by100%of homeowners
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Avatar for PowerHouse, LLC
PowerHouse, LLC
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Manhattan, MT and surrounding areas

In business since 2010

Free estimates

Warranties offered

PowerHouse, LLC can manage every aspect of improving the efficiency of your home or business. From the comprehensive audit and system design to the implementation and application for tax credits and rebates, we ensure you the maximum return on your investment � the benefits of which are financially tangible and environmentally invaluable. Please contact PowerHouse to make an appointment!

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Avatar for Planetary Systems, Inc.
Planetary Systems, Inc.
0.0(
3
)
Home Energy Audit

Serving Manhattan, 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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Energy Efficiency Auditing FAQs, answered by experts

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.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

Some types of electric fireplaces use more electricity than others. Models that produce 1,500 watts will have more of an effect on your heating bill than 750-watt models. 

Electric fireplaces use an average of $1.85 of electricity every eight hours. These minimal operational costs aren’t likely to make a big difference in your electric bill—unless you’re using it as a primary heating source for your home and it’s running most of the time.

They’ll use more electricity than the average upright vacuum, but not remarkably more. Most power units plug into a standard 120-volt outlet and don’t have significant power demands. You shouldn’t notice an increase in electricity bills. If you have any specific questions about energy costs, ask your installer as you examine purchase decisions. Larger power units will need more electricity for their suction levels.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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