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Top-Rated Home energy auditors in Downingtown - Updated Nov 2026

Old Skool HVAC,LLC
4.4(
11
)
Home Energy Audit

Serving Downingtown, PA and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

"

They are really good. I had four guys out here for, like three days. They put in a great heat pump real easily. Not only did they put in a new furnace, but the ducting that was in here at the house was, like, 30 years old so they tore it out and re-did it with custom ducting made out of big sheets of metal. They only charged me $3,000 for the furnace. I am glad I did because it has made a huge difference in the air quality here. They came out yesterday. They said they would be back for the winter servicing. I have an oil backup so they were out for a number of hours yesterday. They will service it for the next 10 years and it is under warranty for 10 years too. They are great guys. Frank Ford is the owner of it. He and his guys do excellent work and really care. Their prices are as good as anybody. The price depends on what unit you get so it is hard to say. These guys are terrific. I would say if you needed a new heat pump or furnace they should be number one on your list.

"
Response time1 day
7 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Strictly Business Home and Commercial Inspections
Strictly Business Home and Commercial Inspections
4.4(
59
)
Home Energy Audit

Serving Downingtown, PA and surrounding areas

In business since 1984

Free estimates

Credit card accepted

"Ira was cordial and professional. He has practical experience and knowledge of residential energy audits. He was able to provide useful suggestions but not definitive solutions to issues. That may have been due to inaccessible interior walls. I am frustrated that a full written report that had been promised still has not been produced six weeks later."
Response time7 hrs
Recommended by77%of homeowners
Avatar for Wall to Wall Custom Design Management
Wall to Wall Custom Design Management
4.8(
23
)
Home Energy Audit

Serving Downingtown, PA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"I was very impressed! 7 days from demolition to a finished product. I feel like I received a great product for a perfect price. I wish I could share the before and after pictures,we moved everything around added a dishwasher and a pantry. I would absolutely recommend this company to anyone looking for a kitchen! I priced out the same kitchen at lowes "not even close"! Quality and affordable.."
Response time1 day
Recommended by100%of homeowners
Avatar for Harmon Heating & Air Conditioning
Harmon Heating & Air Conditioning
4.8(
84
)
Home Energy Audit

Serving Downingtown, PA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I took advantage of a $29.99 coupon I found here on A-list to troubleshoot my broken central air.  Purchased the coupon, scheduled service the next day.  Brian (from the company) found bad wiring that had shorted the system.  I fully would have expected a minor labor charge at a minimum in addition to the initial $29.99, but there was no additional charge.  These guys are honest, ethical, and know what they're doing.  I will do business again with them and will not worry about getting nickel and dime'd, or lied to.  They are my go-to now for HVAC.  Thanks Harmon!
"
Additional Photos
Recommended by96%of homeowners
Avatar for UGI Heating Cooling & Plumbing
UGI Heating Cooling & Plumbing
4.4(
77
)
Home Energy Audit

Serving Downingtown, PA and surrounding areas

In business since 1892

Free estimates

Emergency services offered

"They do the checks for free. Mostly safety checks. Making sure there's no leaks anywhere. They do really well. They are punctual and show up on time. If they say they will be there at a certain time, they are there."
Recommended by95%of homeowners
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FAQs for home energy audit projects in Downingtown, PA

To prepare for a home energy audit, begin by preparing your space. Clear any obstructions around the attic, basement, ducts, crawl space, appliances, windows, and doors. Gather all your energy bills from the last year and information on home upgrades if you’ve made any changes. If you’ve previously had an audit done, include that information as well.

Finally, be prepared to discuss any questions or concerns you have. If you’ve noticed a rise in your energy bills, hot or cold areas in your home, or unusual sounds from ducts or appliances, make a list to discuss with your auditor.

How often you should get an energy audit depends on the age and condition of your home. New homes with no issues are recommended to get an audit every five years, while older homes should audit every two to three years. If you’ve noticed any changes to your energy bills or other areas of concern, you should get an audit as soon as possible. It’s also a good idea to conduct an audit if you’ve made changes or upgrades to your home, such as installing a new furnace, windows, or doors.

An energy audit takes three to four hours to complete. Your auditor sets up testing equipment, conducts an exhaustive walk‑through inspection, and performs all required evaluations to identify energy loss points. The audit follows a systematic review that includes visual assessments, mechanical tests, and detailed documentation, resulting in a precise report of improvement recommendations.

You can schedule a home energy audit any time of the year—it all depends on what's convenient for you. That said, timing it right can help you tackle issues before they impact your comfort and bills. If you live in a colder climate and want to avoid high heating costs in the winter, getting an audit in the summer allows you to make improvements before the temperature drops. On the contrary, if hot summers are your concern, a spring audit can help you stay cool and save on air conditioning.

To find a qualified home energy auditor, start by searching for local energy auditors with great reviews and recognized certifications like those from the Building Performance Institute (BPI). These credentials ensure they're qualified and can help you qualify for rebates. Don't hesitate to ask about their audit methods and schedule a consultation to see if they're a good fit for your needs. Doing some research upfront helps you get top-notch service and maximize your energy efficiency.

Once you have your energy audit report, it's time to take action. Review the recommendations and prioritize the upgrades that make the most sense for your home and budget. Reach out to experienced pros to get quotes and discuss how they can help. By making these improvements, you'll boost your home's energy efficiency, lower your utility bills, and enjoy a more comfortable living space.