Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Londonderry, NH

Enter your zip and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Londonderry, NH?

Select your specific project to find the pro for you.

Find Energy efficiency auditors in Londonderry

Sunniva Energy LLC

No reviews yet

Sunniva Energy LLC

No reviews yet
2 years of experience

"We are a dedicated group of solar industry experts collaborating with leaders in the field, united by a mission to inform and educate homeowners about the benefits of solar energy. Informed homeowners are crucial in adopting solar solutions. Through our partnerships, we provide unparalleled value with top-quality materials, excellent workmanship, and competitive prices. Our utmost priority is delivering exceptional customer service, workmanship, and overall value, resulting in a highly satisfied client base."

"We are a dedicated group of solar industry experts collaborating with leaders in the field, united by a mission to inform and educate homeowners about the benefits of solar energy. Informed homeowners are crucial in adopting solar solutions. Through our partnerships, we provide unparalleled value with top-quality materials, excellent workmanship, and competitive prices. Our utmost priority is delivering exceptional customer service, workmanship, and overall value, resulting in a highly satisfied client base."


Avatar for RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.


Avatar for Blue Air HVAC

Blue Air HVAC

5.00(
1
)

Blue Air HVAC

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

HVAC Specialists! Repair, Diagnostics, and Installation. We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

"Very professional, right price. Came to the project and did his job, no mess and great customer service. I would right him again."

Welton D on February 2022

HVAC Specialists! Repair, Diagnostics, and Installation. We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

"Very professional, right price. Came to the project and did his job, no mess and great customer service. I would right him again."

Welton D on February 2022


"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


Avatar for Triumph Heating and Cooling LLC

Triumph Heating and Cooling LLC

3.00(
2
)

Triumph Heating and Cooling LLC

3.00(
2
)
Free onsite estimate

Triumph Heating and Cooling LLC is your local trusted service and installation team for anything Heating and Cooling related. We install, Service and Maintain gas/oil heating equipment, air conditioning, water heaters, space heaters, ductless mini splits, and more! Our licensed technicians provide top of the line service to our valued customers, ensuring the job is done right the first time. Call today to schedule your service or install!

"He started great, but went down hill. 5 months to install a new heating system after being told it was 5-6 weeks.I was told he had no idea when he could finish because he started a 92 unit condominium project. On another project they installed an HVAC system with no control board. Lied to continuously about dates. We paid in advance for the work and found out afterward that he fired half the staff (I now know why.) Rather than be upfront about the issues he was facing we told lies. Very frustrating and found Devin to talk like an excon. Say one thing and do another with a very straight face."

John R on July 2023

Triumph Heating and Cooling LLC is your local trusted service and installation team for anything Heating and Cooling related. We install, Service and Maintain gas/oil heating equipment, air conditioning, water heaters, space heaters, ductless mini splits, and more! Our licensed technicians provide top of the line service to our valued customers, ensuring the job is done right the first time. Call today to schedule your service or install!

"He started great, but went down hill. 5 months to install a new heating system after being told it was 5-6 weeks.I was told he had no idea when he could finish because he started a 92 unit condominium project. On another project they installed an HVAC system with no control board. Lied to continuously about dates. We paid in advance for the work and found out afterward that he fired half the staff (I now know why.) Rather than be upfront about the issues he was facing we told lies. Very frustrating and found Devin to talk like an excon. Say one thing and do another with a very straight face."

John R on July 2023


Avatar for Ideal Comfort HVAC

Ideal Comfort HVAC

5.00(
8
)

Ideal Comfort HVAC

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

If you find your air conditioning or heating units not working properly, call us immediately. We proudly serve Southern New Hampshire and the Merrimack Valley at affordable prices with our work. Ideal Comfort can provide full maintenance and service for your HVAC system in your home, small commercial building or office. Our team of knowable technicians are ready to tackle anything from small to complex jobs.

"They were very friendly, reliable, and did excellent work. I highly recommend them."

RuthAnn W on August 2022

If you find your air conditioning or heating units not working properly, call us immediately. We proudly serve Southern New Hampshire and the Merrimack Valley at affordable prices with our work. Ideal Comfort can provide full maintenance and service for your HVAC system in your home, small commercial building or office. Our team of knowable technicians are ready to tackle anything from small to complex jobs.

"They were very friendly, reliable, and did excellent work. I highly recommend them."

RuthAnn W on August 2022


TNT Electrical Contractor LLC

No reviews yet

TNT Electrical Contractor LLC

No reviews yet

RESIDENTIAL Remodels, New Construction, Generator Installation, Service work Inside & Outside, Panel/Service Upgrades, Yearly maintenance: GFI/Smoke detector testing, Seasonal Tests of Electrical Systems, LED upgrades, Dock & Power Lights RETAIL, COMMERCIAL, & INDUSTRIAL Department Relocations & Renovations, Lighting Upgrades, Retail Store Setups, Monthly Maintenance, Energy Efficient options, Safety Inspections We also do Emergency Service Calls.

RESIDENTIAL Remodels, New Construction, Generator Installation, Service work Inside & Outside, Panel/Service Upgrades, Yearly maintenance: GFI/Smoke detector testing, Seasonal Tests of Electrical Systems, LED upgrades, Dock & Power Lights RETAIL, COMMERCIAL, & INDUSTRIAL Department Relocations & Renovations, Lighting Upgrades, Retail Store Setups, Monthly Maintenance, Energy Efficient options, Safety Inspections We also do Emergency Service Calls.


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.


Garrison City HVAC-R, LLC

No reviews yet

Garrison City HVAC-R, LLC

No reviews yet
9 years of experience

Garrison City HVAC-R is a small, family-owned and family-run company specializing in residential and commercial heating and cooling, refrigeration, ventilation, ice makers, soda fountains, draft beer systems, frozen carbonated beverage equipment, and commercial coffee brewers. We currently have two full time employees and proudly serve our neighbors in Stratford and Rockingham Counties.

Garrison City HVAC-R is a small, family-owned and family-run company specializing in residential and commercial heating and cooling, refrigeration, ventilation, ice makers, soda fountains, draft beer systems, frozen carbonated beverage equipment, and commercial coffee brewers. We currently have two full time employees and proudly serve our neighbors in Stratford and Rockingham Counties.


Avatar for Weathertight Spray Foam, LLC

Weathertight Spray Foam, LLC

No reviews yet

Weathertight Spray Foam, LLC

No reviews yet
Free onsite estimate

Weathertight Spray Foam is recognized for it's exceptional service and quality of work. The owner of the company is present at every job, insuring that things are done right the first time, and that no customer is ever left unsatisfied. Our equipment is state-of-the-art, and our team is top-notch. If you are looking to make your home or business more energy-efficient, and to eliminate the issues that come with traditional insulation (mold, pests, etc.), schedule a free consult today.

Weathertight Spray Foam is recognized for it's exceptional service and quality of work. The owner of the company is present at every job, insuring that things are done right the first time, and that no customer is ever left unsatisfied. Our equipment is state-of-the-art, and our team is top-notch. If you are looking to make your home or business more energy-efficient, and to eliminate the issues that come with traditional insulation (mold, pests, etc.), schedule a free consult today.

Showing 1-10 of 42
Energy Efficiency Auditing questions, answered by experts

Smart glass doesn’t use a lot of electricity, and you can expect a standard window to add between $1 and $2 per year to your electric bills. Smart glass is proof that energy-efficient windows work. Although your smart windows may consume a little energy to operate, they can save enough energy to offset the costs. If you’re concerned about the minimal bump to your electricity consumption, you can opt for smart tint, which doesn’t require electricity to work.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

Yes, including optimizing settings and suggesting upgrades if needed.

The Londonderry, NH homeowners’ guide to energy efficiency auditing services

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