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TRUSTED BY HAMDEN, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon10
    Verified energy efficiency auditing services reviews

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

Avatar for Gabriel Hahn
Gabriel Hahn
New to Angi
Home Energy Audit

Serving Hamden, CT and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Credit card accepted

I conduct energy audit tests for homes, whether they are colonial or brand new construction. I can recommend you various forms of weathersealant, thermal wrappings, and storm window techniques, saving you thousands in the form of long-term heat insulation tech-forward solutions.

Rachel Solar Specialist
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Hamden, CT and surrounding areas

Approved

In business since 2021

Free estimates

We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references. \n

Response time9 hrs
Avatar for Home and Harbor Property Management
Home and Harbor Property Management
New to Angi
Home Energy Audit

Serving Hamden, CT and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Hello! My name is Doug and own and operate Home and Harbor Property Management and Concierge Service based in Madison CT. While our primary focus is full service property management and home-watch, no job is too big or too small. Anything from carpentry, masonry, mailbox install and repair, weather stripping install and repair, appliance maintenance, junk removal, dump runs, season outdoor clean up, deck repair and on and on. We havea network of local subs for large scale jobs and can handle all your needs. We are a trusted source for primary home owners, second home owners and commercial properties alike.

Avatar for New England Conservation Services, LLC
New England Conservation Services, LLC
4.9(
8
)
Home Energy Audit

Serving Hamden, CT and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"We have had NECS to our home several times for different projects: energy audit, attic insulation, and wall insulation. These are very professional, considerate, and honest people to do such work in your home. Our house is much more energy efficient after all we have done. Insulation pays for itself very quickly, and NECS took care of all incentive programs for us. You won't go wrong with them."
Sidewall Insulatiiom
Spinsulated house
Response time6 days
Recommended by100%of homeowners
Avatar for NEW ENGLAND SMART ENERGY
NEW ENGLAND SMART ENERGY
4.9(
13
)
Energy Audit - For BusinessHome Energy Audit

Serving Hamden, CT and surrounding areas

In business since 2009

Emergency services offered

"The service was great. They gave a lot of really helpful suggestions. They replaced our bulbs with low energy bulbs. They put in weather stripping in areas needed as well. They were great to work with. They gave a detailed report on how to lower our energy usage."
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NESEG Certified Techs
Blower Door Test

+38

Recommended by91%of homeowners
Avatar for HARP Home Services LLC
HARP Home Services LLC
4.5(
488
)
Energy Audit - For BusinessHome Energy Audit

Serving Hamden, CT and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Each technician who did the maintenance work seemed very knowledgeable. Each was also very personable and helpful in answering any questions I had and pointing out things I should be aware of. I have used HARP for over 12 years and the one time there was a problem due to faulty work by one of the technicians, HARP looked into the matter and assumed full responsibility for repairs/costs associated with fixing the problem in a timely fashion. I have found HARP to be very dependable and I really count on them."
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+9

Recommended by93%of homeowners
Avatar for R & R Heating & Cooling
R & R Heating & Cooling
5.0(
18
)
Energy Audit - For BusinessHome Energy Audit

Serving Hamden, CT and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"It was excellent. Ramon was incredibly thorough in terms of checking everything. Anytime there's any issue I can call him and troubleshoot through the phone, and if not, he'll come over and fixed it."
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+19

Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for Vista Home Improvement
Vista Home Improvement
4.3(
419
)
Energy Audit - For BusinessHome Energy Audit

Serving Hamden, CT and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"They did an excellent assessment, were good listeners for our goals, gave us updates as to when the custom windows would arrive, installed promptly and expertly respecting our time limits due to our children's nap schedule, cleaned up, communicated with us through the installation, and we have had reductions in our energy bill since the installation.
"
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+41

Recommended by87%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

String lights require electricity, but not an excessive amount, especially when compared to other lighting fixtures. LED rope lights, for instance, consume around one watt per foot. Running six or seven light strings simultaneously should only cost you around $10 to $15 each month. You can save even more money by remembering to turn off your lights during daylight hours. 

Audits include inspecting insulation, HVAC systems, windows, and appliances to identify energy inefficiencies.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

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 Hamden, CT homeowners’ guide to energy efficiency auditing services

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