Get matched with top energy efficiency auditors in Merrimack, NH

Infrared Diagnostic LLC

Recommended by 97% of Angi customers

HERS rater providing energy audit and infrared building diagnostic to home owners, home buyers and commercial properties. Service include Infrared scan, Blower Door leak testing and Duct Blaster leak testing. We perform our inspections and structure our reports with clients needs in mind. The result is a clear, concise report and most importantly a satisfied client! HERS rater service to new home builders, 2012 IECC code HVAC duct leak and blower-door testing Certified RESNET HERS Rater Certified BPI Building Analyst Certified Level 3 Infrared Thermographer Wondering how you can make your home easier on the environment, while simultaneously increasing comfort and lowering energy bills? Our home energy efficiency services can help you accomplish all these goals and more. By analyzing the house as a system and looking at the interrelationships between each of your home's components -- building envelope (insulation, windows, doors, air sealing), combustion equipment (boilers, furnaces, water heaters), etc. -- we're able to identify the key sources of discomfort, indoor air quality, and energy waste in your home. We're then able to target the areas with the greatest return on investment so you get the greatest home improvement for the best value. Other infrared services are: Infrared electric system panel hot spot scan. Infrared flat roof scan for moisture damage. Infrared ratiant floor heat and plumbing scan.

"Infrared Diagnostics is an independent Energy Auditing company. Flemming is great to work with because he's a consummate professional at what he does. Very knowledgeable about building energy issues and in my case I needed an expert I could trust to tell me what I needed and to prove it with science. Flemming did exactly that by providing me with an infrared scan to show me what and where the problems in my home. With this information, and Flemming's recommendations, I can now speak to contractors intelligently and direct them to perform the work that I need done to make sure that the problems are resolved and the job is done as efficiently as possible in a way that saves me time and money. Thanks for your time and advice on how to resolve the issues Flemming!"

Ron G on February 2020

"Infrared Diagnostics is an independent Energy Auditing company. Flemming is great to work with because he's a consummate professional at what he does. Very knowledgeable about building energy issues and in my case I needed an expert I could trust to tell me what I needed and to prove it with science. Flemming did exactly that by providing me with an infrared scan to show me what and where the problems in my home. With this information, and Flemming's recommendations, I can now speak to contractors intelligently and direct them to perform the work that I need done to make sure that the problems are resolved and the job is done as efficiently as possible in a way that saves me time and money. Thanks for your time and advice on how to resolve the issues Flemming!"

Ron G on February 2020

Seacoast Inspections LLC

4.93(

Seacoast Inspections LLC

4.93(

Recommended by 95% of Angi customers

Licensed Home Inspector #698 MA, #107 NH ASHI Certified Inspector #247162, Certified Level II Building Science Thermographer #31162, EDR Certified, Certified WDI Registry Inspector #90113. No Fee guarantee!

CAL'S AIR CONDITIONING AND HEATING

4.90(

CAL'S AIR CONDITIONING AND HEATING

4.90(

Recommended by 97% of Angi customers

Cal's Air Conditioning and Heating. Sole Proprietership, in business since 1994, locally owned and operated, owner Ernest Calderone. Billing-paid upon completion of service or installation.

"Very pleased with the Mitsubishi ductless a/c system Cal's installed. Prompt and professional. Highly recommended."

kim k on August 2018

Cal's Air Conditioning and Heating. Sole Proprietership, in business since 1994, locally owned and operated, owner Ernest Calderone. Billing-paid upon completion of service or installation.

"Very pleased with the Mitsubishi ductless a/c system Cal's installed. Prompt and professional. Highly recommended."

kim k on August 2018

Dolphin Insulation Inc

4.92(

Dolphin Insulation Inc

4.92(

Customers say: Quality work

Recommended by 96% of Angi customers

Dolphin Insulation has completely changed the traditional approach to insulating homes with our very unique processes and materials installed by highly skilled specialists. Ultimately, we create for homeowners the perfect indoor, all-season climate for them no matter how hot, cold, or even noisy it is outside. Our customers tell us their entire living experience in their home has been improved 100% after we insulate.

"We cannot say enough good things about Dolphin Insulation. They replaced the existing insulation in our entire house and addressed some mold related issues we came across along the way. We are delighted with the results. Our house is much tighter and drafts we used to feel are gone. The whole process took about 2 weeks, including removing the old insulation, prepping and blowing in the new insulation. We are talking about the roof over a bedroom over a double garage, the main house and the cathedral ceiling for a family room. Go to their website and see some of the projects they have tackled. What you see is what you get. From our very first contact right through the installation process everyone we came into contact with was professional, informative and very helpful. Dolphin was upfront on their timing for the project, in what was their busiest time of the year, and called us ahead of time to let us know they were running a day or two late. All the crew who came to our house throughout the process were polite, friendly, hardworking and took the time to answer any questions we had. They were flexible and worked around other contractors who were in our house at the same time. Dolphin adapted to issues that cropped which resulted in more work that they took on. Every day they cleaned up after themselves as best they could. Amanda, the owner, even stopped by towards the end to bring over some parts they need to protect lights in our family room. It is also clear everyone believes in the technology they use, and that what they do is more than just a job for the crew. As far as we are concerned this is the best and greenest insulation solution out there. It takes time to install but it is well worth it. No toxic fumes and you don't have to move out of your house. This is not the cheapest solution you can come across but it is worth every penny."

John F on May 2022

"We cannot say enough good things about Dolphin Insulation. They replaced the existing insulation in our entire house and addressed some mold related issues we came across along the way. We are delighted with the results. Our house is much tighter and drafts we used to feel are gone. The whole process took about 2 weeks, including removing the old insulation, prepping and blowing in the new insulation. We are talking about the roof over a bedroom over a double garage, the main house and the cathedral ceiling for a family room. Go to their website and see some of the projects they have tackled. What you see is what you get. From our very first contact right through the installation process everyone we came into contact with was professional, informative and very helpful. Dolphin was upfront on their timing for the project, in what was their busiest time of the year, and called us ahead of time to let us know they were running a day or two late. All the crew who came to our house throughout the process were polite, friendly, hardworking and took the time to answer any questions we had. They were flexible and worked around other contractors who were in our house at the same time. Dolphin adapted to issues that cropped which resulted in more work that they took on. Every day they cleaned up after themselves as best they could. Amanda, the owner, even stopped by towards the end to bring over some parts they need to protect lights in our family room. It is also clear everyone believes in the technology they use, and that what they do is more than just a job for the crew. As far as we are concerned this is the best and greenest insulation solution out there. It takes time to install but it is well worth it. No toxic fumes and you don't have to move out of your house. This is not the cheapest solution you can come across but it is worth every penny."

John F on May 2022

New England Clean Energy

New England Clean Energy

Customers say: Quality work

Recommended by 100% of Angi customers

New England Clean Energy Inc. designs, installs and services solar electric, battery systems, and provides solar-related services and repair. The company has installed more than 1,200 solar energy systems for homeowners, businesses and nonprofit organizations in New Hampshire, Rhode Island and Massachusetts. Founded in 2006, New England Clean Energy has more positive reviews on SolarReviews.com than any installer in the northeast. Headquartered in Hudson, Mass., the company also has an office in Providence, R.I. and will soon be opening an office in New Hampshire. To see a searchable picture library of some of our work visit https://newenglandcleanenergy.com/residential/photos/ You can search by type of installation, roof type, town or state.

"We consider ourselves very lucky for having chosen New England Clean Energy as our solar installer. From the beginning to the end of the project, NECE was responsive, punctual, helpful and very focused on giving us the best - we always felt they put us, their customer, first. We are very happy customers, secure in the knowledge that no matter what issues may come up with our system, NECE is a phone call or an email away, with courteous, prompt answers. We wholeheartedly recommend them."

Teodros G on January 2019

"We consider ourselves very lucky for having chosen New England Clean Energy as our solar installer. From the beginning to the end of the project, NECE was responsive, punctual, helpful and very focused on giving us the best - we always felt they put us, their customer, first. We are very happy customers, secure in the knowledge that no matter what issues may come up with our system, NECE is a phone call or an email away, with courteous, prompt answers. We wholeheartedly recommend them."

Teodros G on January 2019

Green Energy Consumers Alliance

4.86(

Green Energy Consumers Alliance

4.86(

Customers say: Quick response

Recommended by 95% of Angi customers

NON-PROFIT organization. Save on heating oil with local dealers, all year long. Our Heating Oil Service works like a buyers club or co-op for home heating oil and is available to most households in Massachusetts, Rhode Island, and southern New Hampshire. We use the group buying power of our 11,000 members to negotiate a discounted price per gallon with vetted oil dealers every day of the year. How it works: 1. Enroll in the program and pay your annual membership dues ($25 for a basic 1-year membership). 2. Once you’ve enrolled, we pair you up with one of the oil dealers in our network that meets your delivery, payment, and service preferences. 3. Every time you receive a delivery from your new Mass Energy oil dealer, you get the discounted member price per gallon instead of the price they charge their regular customers. That's it! As a bonus, we'll help you save even more on energy by helping you make smart decisions around energy efficiency and renewable energy upgrades. (Formerly doing business in Massachusetts as Mass Energy and in Rhode Island as People's Power & Light.)

"Always pleasant interactions with staff. You can tell that they are proud of what they do and are genuinely invested in the company’s causes."

George S on January 2018

"Always pleasant interactions with staff. You can tell that they are proud of what they do and are genuinely invested in the company’s causes."

George S on January 2018

MacFarlane Energy

4.62(

133

MacFarlane Energy

4.62(

133

Recommended by 93% of Angi customers

Customer convenience is a top priority at MacFarlane Energy. We simplify our customers' lives by serving as a one-stop shop for heating, air conditioning and home comfort. In addition to delivering heating oil and maintaining the equipment in your home or business, we provide virtually every related service: indoor air quality, duct cleaning, conservation advice, home energy audits, replacing water heaters and oil tanks, installation of high-efficiency equipment, plus more. We also install radiant heat, snow-melt systems, pool heaters, solar hot water systems, and geothermal systems.

"Review for Thomas Coolberth on July 5, 2025. Had another leak on the master board of my OB 2000. Thomas installed half a board until the master board could be replaced. There is antifreeze in the water which has to be replaced. Thomas was very friendly, explaining the problem in layman’s terms and; quickly offered a temporary fix of the problem during July 4 th weekend. Highly recommend his service."

Carl G on July 2025

"Review for Thomas Coolberth on July 5, 2025. Had another leak on the master board of my OB 2000. Thomas installed half a board until the master board could be replaced. There is antifreeze in the water which has to be replaced. Thomas was very friendly, explaining the problem in layman’s terms and; quickly offered a temporary fix of the problem during July 4 th weekend. Highly recommend his service."

Carl G on July 2025

A&E AIR CONDITIONING & REFRIGERATION

A&E AIR CONDITIONING & REFRIGERATION

Customers say: Quick response

Recommended by 100% of Angi customers

Residential Commercial Installs Refrigeration A/C Installation Ductless A/C services A/C repairs Heater repair Thermostat repair

"Installation was quick and did not encounter any issues. Mr. D’Entremont was friendly and professional. I would definitely call him again for any HVAC services I need."

Sue R on September 2022

Residential Commercial Installs Refrigeration A/C Installation Ductless A/C services A/C repairs Heater repair Thermostat repair

"Installation was quick and did not encounter any issues. Mr. D’Entremont was friendly and professional. I would definitely call him again for any HVAC services I need."

Sue R on September 2022

Symphony Home Improvement

Symphony Home Improvement

Customers say: Quick response

Recommended by 100% of Angi customers

20% off for Angie's List Members!!! We provide expert inspection, consultation, installation and service for Windows and Doors. Our specialty is in Windows and Doors. We have diagnostic equipment and trained experts to determine the solutions to your window problems, as well as recommending products that will serve your needs.

Gassco Inc.

4.82(

Gassco Inc.

4.82(