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Verified Reviews for Energy Efficiency Auditing pros in North Liberty, IA

*The Angi rating for Energy Efficiency Auditing companies in North Liberty, IA 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 North Liberty, IA 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 November 12, 2025

Find Energy efficiency auditors in North Liberty

M&P Mechanical

5.00(
6
)

M&P Mechanical

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Keep your family safe with the right pro! We have combined 20 years experience, with Masters license and insurance. We have the dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Quick painless fix. Will hire again."

Don B on February 2023

Keep your family safe with the right pro! We have combined 20 years experience, with Masters license and insurance. We have the dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Quick painless fix. Will hire again."

Don B on February 2023

Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

No reviews yet

USA Alarm Service, Inc

No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Innovative Engineers Inc.

No reviews yet

Innovative Engineers Inc.

No reviews yet
15 years of experience

INNOVATIVE ENGINEERS INC. (IEI) is a leading consultant for mechanical and electrical engineering design services based in Iowa. Our firm also offers Sustainability and Energy related services such as Commissioning, energy modeling, Renewable energy, LEED consulting and geothermal design. We offer our engineering services to Architects, Developers, Contractors, Corporations, Institutions and Government Departments. Our portfolio includes Commercial, Residential, Mixed-use, Healthcare, Institutional, Retail, Industrial and Religious Facilities.

INNOVATIVE ENGINEERS INC. (IEI) is a leading consultant for mechanical and electrical engineering design services based in Iowa. Our firm also offers Sustainability and Energy related services such as Commissioning, energy modeling, Renewable energy, LEED consulting and geothermal design. We offer our engineering services to Architects, Developers, Contractors, Corporations, Institutions and Government Departments. Our portfolio includes Commercial, Residential, Mixed-use, Healthcare, Institutional, Retail, Industrial and Religious Facilities.

Olde Town Roofing

3.67(
3
)

Olde Town Roofing

3.67(
3
)
Customers say: Quality work
21 years of experience

We are a general contractor that serves Iowa and Illinois. If you can think it, we will figure out a way to create it for you at an honest price and great customer service. We have several financing options available for almost every type of credit risk. We offer several promotions throughout the year for both product and financing.

"Failed to show up on agreed upon work date due to overbooking. Bid vinyl for an aluminum replacement, then was unresponsive about bidding aluminum. When we decided to go elsewhere, six months later they sent us an invoice for an additional, arbitrary $3k for work not performed. We disputed the invoice and never heard back until we got another invoice another seven months later seeking double the original amount including monthly interest and an ‘overhead & profit’ fee."

CRAIG M on November 2024

We are a general contractor that serves Iowa and Illinois. If you can think it, we will figure out a way to create it for you at an honest price and great customer service. We have several financing options available for almost every type of credit risk. We offer several promotions throughout the year for both product and financing.

"Failed to show up on agreed upon work date due to overbooking. Bid vinyl for an aluminum replacement, then was unresponsive about bidding aluminum. When we decided to go elsewhere, six months later they sent us an invoice for an additional, arbitrary $3k for work not performed. We disputed the invoice and never heard back until we got another invoice another seven months later seeking double the original amount including monthly interest and an ‘overhead & profit’ fee."

CRAIG M on November 2024

Avatar for Energy Choice Center

Energy Choice Center

No reviews yet

Energy Choice Center

No reviews yet
16 years of experience

We provide free energy consulting services that pertain to discounted natural gas and electricity supply services through local utility companies.

We provide free energy consulting services that pertain to discounted natural gas and electricity supply services through local utility companies.

Energy Efficiency Auditing questions, answered by experts

R-value is a measurement that dictates how much resistance an insulation material has against heat flow—or how well it can stop heat from coming and going. A higher R-value, which is attributed to thicker and more dense materials, means the better the insulation performs. There is not one universal recommended value. It depends on climate zones. For example, Alaska, which has a naturally cold and arctic climate, has higher R-value recommendations than the hot and humid Hawaii.

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.

Upgrade to double-glazed glass or apply energy-efficient coatings to reduce heat loss and utility costs.

ENERGY STAR®-certified windows are the most energy-efficient windows on the market. This certification means that the window meets strict efficiency guidelines set forth by the Environmental Protection Agency. While they might cost more upfront, they can save you money on your energy bills in the long run. ENERGY STAR®-certified windows lower household energy bills by an average of 12% annually.

The North Liberty, IA homeowners’ guide to energy efficiency auditing services

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

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