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

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

Serving Berlin, 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 Berlin, 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 Berlin, 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 Berlin, 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 Berlin, CT and surrounding areas

In business since 2009

Emergency services offered

"We moved into our new home three weeks ago and a home energy audit was on top of my agenda.   We had done one at our previous home and quickly saw improvements in our utility bills.
I suspect that we will see the same given the thoroughness the three member team showed.  They spent close to 3 hours plugging holes, replacing light fixtures and developing suggestions where we could see further savings.  In addition, they provided a number of rebates for added insulation, appliance replacement etc.  I would recommend to anyone.

"
Additional Photos
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NESEG Certified Techs
Blower Door Test

+38

Recommended by91%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

While you can perform many routine home maintenance jobs yourself, it’s often a good idea to bring pros in for certain tasks. HVAC maintenance, fireplace and chimney inspections, foundation repairs, and roof inspections and repairs should be handled by professionals who know what to look for and can safely perform repairs. You may also find it helpful to hire a local house cleaning service to help with deep cleaning.

A home energy audit costs about $420 on average, with prices ranging from $100 to $2,250 or more. The final cost depends on factors like your home's size, location, the thoroughness of the audit, and the specific tests performed. A basic Level 1 walk-through inspection typically costs between $150 and $200, while a comprehensive Level 3 audit with detailed testing and a report costs around $900. Homeowners may be able to use the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit to cover up to $150 of the audit cost.

Costs for common individual tests include:

  • Blower door test: $350

  • Duct testing: $100

  • HERS test: $375

  • HERS certification: $200

  • Infrared imaging: $200

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

The three levels of home energy audits include:

  • Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.

  • Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.

  • Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.

The Berlin, 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.