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Get matched with top heating and air conditioning pros in Londonderry, NH

There are 11 highly-rated local heating and air conditioning pros.

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  • Verified reviews icon128
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Londonderry

Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
Approved Pro
Customers say: Super punctual
621 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025


Avatar for Heritage Home Service

Heritage Home Service

4.04(
454
)
Approved Pro

Heritage Home Service

4.04(
454
)
Approved Pro
Customers say: Super punctual
219 local quotes requested
39 years of experience

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"Excellent experience, technician arrived on time. Friendly, efficient, kept me up to date on the plan. Leak was diagnosed and toilet replaced in no time!"

Elizabeth S on July 2025

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"Excellent experience, technician arrived on time. Friendly, efficient, kept me up to date on the plan. Leak was diagnosed and toilet replaced in no time!"

Elizabeth S on July 2025


"Prompt, clean professional"

Peter S on June 2025

Garage door opener repair. Plumbing repairs. HVAC maintenance. Painting. Appliances repair. Dry wall repair. Medium Electrical repair. Lock install. Flooring . Mechanical repairs.

"Prompt, clean professional"

Peter S on June 2025


"This is my second experience with Joyce Plumbing and Heating. The first time was a new hot water tank. When you have your local city inspector tell you during inspection of the tank installation that "oh, Joyce did it? Then I don't even need to look at the installation...". That was a ringing endorsement!! We then moved to a mini-split heating/cooling system for our house. These guys were just terrific. We had 3 units put into our house and the team worked flawlessly. From Will (our super human sales guy) to Tina in the Joyce P&H office (customer care) to Calvin and his team, we were very well treated, on time and under budget. I highly recommend Joyce Plumbing and Heating and we will be using them again. You should to!!"

Caryl S on August 2021

Looking for top-notch cooling & heating service in Boston? Look no further than Joyce Cooling & Heating Inc. With financing options available and a team of experts ready to assist you, we're here to make your home projects a breeze. Contact us today at [email protected].

"This is my second experience with Joyce Plumbing and Heating. The first time was a new hot water tank. When you have your local city inspector tell you during inspection of the tank installation that "oh, Joyce did it? Then I don't even need to look at the installation...". That was a ringing endorsement!! We then moved to a mini-split heating/cooling system for our house. These guys were just terrific. We had 3 units put into our house and the team worked flawlessly. From Will (our super human sales guy) to Tina in the Joyce P&H office (customer care) to Calvin and his team, we were very well treated, on time and under budget. I highly recommend Joyce Plumbing and Heating and we will be using them again. You should to!!"

Caryl S on August 2021


Avatar for Walshco LLC

Walshco LLC

5.00(
7
)
Approved Pro

Walshco LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
21 local quotes requested
1 years of experience

WalshCo specializes in safe, reliable, and code-compliant oil tank, oil boiler, and oil furnace installations. We handle everything from old-tank removals and new system installs to full heating system upgrades. Our team focuses on clean workmanship, honest communication, and fast turnaround times—so your home stays warm, efficient, and protected. Whether it’s a brand-new oil tank, a high-efficiency boiler replacement, or a full furnace changeout, we bring expert service and New England craftsmanship to every job. Your safety, comfort, and satisfaction come first.

"I would recomend this company .They were reasonably priced and professional and courteous. "

Lory M on November 2025

WalshCo specializes in safe, reliable, and code-compliant oil tank, oil boiler, and oil furnace installations. We handle everything from old-tank removals and new system installs to full heating system upgrades. Our team focuses on clean workmanship, honest communication, and fast turnaround times—so your home stays warm, efficient, and protected. Whether it’s a brand-new oil tank, a high-efficiency boiler replacement, or a full furnace changeout, we bring expert service and New England craftsmanship to every job. Your safety, comfort, and satisfaction come first.

"I would recomend this company .They were reasonably priced and professional and courteous. "

Lory M on November 2025


Avatar for Extreme Makeover Custom Home Repair Handyman, LLC

Extreme Makeover Custom Home Repair Handyman, LLC

4.61(
156
)
Approved Pro

Extreme Makeover Custom Home Repair Handyman, LLC

4.61(
156
)
Approved Pro
Customers say: Quality work
282 local quotes requested
29 years of experience

Want your weekends back! We can help with all your projects large and small. Specializing in all phases of construction, full remodeling, repair & handyman work. Call us today for a free estimate. Now servicing southern New Hampshire and Northern Massachusetts

"John was excellent and I highly recommend him. He rebuilt our breezeway and installed a beautiful wood ceiling in our family room. In particular, John: - was immediately responsive to our request for a quote; -provided the quote when he said he would; - followed up and answered questions we had; - provided an additional quote based on changes we made; - started the project when he said he would; - showed up every day; - minimized any inconvenience to us while working; - worked neatly and cleaned up every day; - completed the project on time and on budget! Working with John was a very pleasant experience. He is friendly, courteous, professional and an excellent communicator. His mantra is to make the customer happy. He checked with us at each stage of the project to be sure we were pleased. He is very detailed oriented and his work product is top notch. We would, and plan to, use John for future projects."

Pamela Z on January 2025

Want your weekends back! We can help with all your projects large and small. Specializing in all phases of construction, full remodeling, repair & handyman work. Call us today for a free estimate. Now servicing southern New Hampshire and Northern Massachusetts

"John was excellent and I highly recommend him. He rebuilt our breezeway and installed a beautiful wood ceiling in our family room. In particular, John: - was immediately responsive to our request for a quote; -provided the quote when he said he would; - followed up and answered questions we had; - provided an additional quote based on changes we made; - started the project when he said he would; - showed up every day; - minimized any inconvenience to us while working; - worked neatly and cleaned up every day; - completed the project on time and on budget! Working with John was a very pleasant experience. He is friendly, courteous, professional and an excellent communicator. His mantra is to make the customer happy. He checked with us at each stage of the project to be sure we were pleased. He is very detailed oriented and his work product is top notch. We would, and plan to, use John for future projects."

Pamela Z on January 2025


Avatar for Nobel Air Services

Nobel Air Services

New on AngiNew on Angi
Approved Pro

Nobel Air Services

New on AngiNew on Angi
Approved Pro
113 local quotes requested
Emergency services offered

At Nobel Air Services, we believe that the secret to satisfaction is to solve your problem quickly, correctly, and affordably. We offer 24/7 emergency services to help you with those urgent matters that can’t wait until the next business day, in addition to friendly financing through Synchrony for those high, unexpected costs. We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! It’s easy to tell when something isn’t quite right with your home, but what exactly has gone wrong can be a little trickier to figure out. If you think you may have a problem, it’s better to be safe and call a professional right away. At Nobel Air Services, we offer world-class HVAC and plumbing solutions that provide you with the solution to your property’s problems. Whether it’s a new installation, a routine repair, preventative maintenance, or anything in between, you can count on us to get the job done right the first time. Check out all the services we offer below and call -or- click to schedule a free estimate today! ***Financing is available**

At Nobel Air Services, we believe that the secret to satisfaction is to solve your problem quickly, correctly, and affordably. We offer 24/7 emergency services to help you with those urgent matters that can’t wait until the next business day, in addition to friendly financing through Synchrony for those high, unexpected costs. We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! It’s easy to tell when something isn’t quite right with your home, but what exactly has gone wrong can be a little trickier to figure out. If you think you may have a problem, it’s better to be safe and call a professional right away. At Nobel Air Services, we offer world-class HVAC and plumbing solutions that provide you with the solution to your property’s problems. Whether it’s a new installation, a routine repair, preventative maintenance, or anything in between, you can count on us to get the job done right the first time. Check out all the services we offer below and call -or- click to schedule a free estimate today! ***Financing is available**


Avatar for Kyle's Cooling And Heating LLC

Kyle's Cooling And Heating LLC

5.00(
6
)
Approved Pro

Kyle's Cooling And Heating LLC

5.00(
6
)
Approved Pro
14 local quotes requested
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Kyle is always quick to respond and come out to evaluate, even after hours! He never lets us go without heat or hot water, if he can help it, and for that I am extremely grateful. He is also very knowledgeable in the field of HVAC"

Mikaela N on November 2025

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Kyle is always quick to respond and come out to evaluate, even after hours! He never lets us go without heat or hot water, if he can help it, and for that I am extremely grateful. He is also very knowledgeable in the field of HVAC"

Mikaela N on November 2025


Avatar for Unique Indoor Comfort Heating & Cooling

Unique Indoor Comfort Heating & Cooling

4.50(
50
)
Approved Pro

Unique Indoor Comfort Heating & Cooling

4.50(
50
)
Approved Pro
Customers say: Super punctual
89 local quotes requested
58 years of experience

Unique Indoor Comfort, an Ace Hardware Company is a family owned and operated business with over 30 years in the HVAC industry. Providing residential heating and air conditioning maintenance, repair and installation of furnaces, boilers, heat pumps, ductless and high velocity AC. We are experts at providing air conditioning solutions for older homes, oil/gas to heat pump conversions, and are Mass Save certified heat pump contractors. We’ve built a reputation for superior quality, through years of putting the customer first and getting the job done right the first time. As local residents, our family and expertly trained team of technicians think of our customers as neighbors; our goal is to maintain our reputation as a quality organization, continuing to offer superior heating and cooling services in the Boston area and ensuring that you can be proud of our work and products for years to come.

"Diagnosis and repair were straightforward and the talented Mike, who has done other great work for us on our ACs, had a replacement pump in his truck. Swapped over in under an hour. Cost of the repair was quite high, mainly due to very high price they charged for the pump. A Taco pump that I could buy for $175 was priced on this repair at more than $500. I get that it was an urgent situation and I’m happy to pay reasonably for the response but that mark-up bothered me. I called the office, had a long talk with the owner; sadly, she offered no consideration at all. Yes, it’s hard to find and keep skilled techs, but now seems that most HVAC firms have a business model like a car dealer’s service dept, far more corporate, less flexible or customer-considerate."

Mark S on January 2021

Unique Indoor Comfort, an Ace Hardware Company is a family owned and operated business with over 30 years in the HVAC industry. Providing residential heating and air conditioning maintenance, repair and installation of furnaces, boilers, heat pumps, ductless and high velocity AC. We are experts at providing air conditioning solutions for older homes, oil/gas to heat pump conversions, and are Mass Save certified heat pump contractors. We’ve built a reputation for superior quality, through years of putting the customer first and getting the job done right the first time. As local residents, our family and expertly trained team of technicians think of our customers as neighbors; our goal is to maintain our reputation as a quality organization, continuing to offer superior heating and cooling services in the Boston area and ensuring that you can be proud of our work and products for years to come.

"Diagnosis and repair were straightforward and the talented Mike, who has done other great work for us on our ACs, had a replacement pump in his truck. Swapped over in under an hour. Cost of the repair was quite high, mainly due to very high price they charged for the pump. A Taco pump that I could buy for $175 was priced on this repair at more than $500. I get that it was an urgent situation and I’m happy to pay reasonably for the response but that mark-up bothered me. I called the office, had a long talk with the owner; sadly, she offered no consideration at all. Yes, it’s hard to find and keep skilled techs, but now seems that most HVAC firms have a business model like a car dealer’s service dept, far more corporate, less flexible or customer-considerate."

Mark S on January 2021


Avatar for Ideal Solutions

Ideal Solutions

5.00(
8
)
Approved Pro

Ideal Solutions

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
257 local quotes requested

Ideal Solutions is an up and coming service based company with 24 years experience in the construction/maintenance industry. We specialize in residential homes upkeep and/or home improvements. Low overhead and a streamlined process equals lower cost to the customer. Ideal Solutions is interested in providing you with exceptional and quality services for your homes everyday needs.

"These guys did a awesome job.they showed up on time,did the many jobs that were planned and some that were not planned i would recommend this company in a heartbeat..happy customer. Kevin and Jody Palmer"

Jody P on July 2025

Ideal Solutions is an up and coming service based company with 24 years experience in the construction/maintenance industry. We specialize in residential homes upkeep and/or home improvements. Low overhead and a streamlined process equals lower cost to the customer. Ideal Solutions is interested in providing you with exceptional and quality services for your homes everyday needs.

"These guys did a awesome job.they showed up on time,did the many jobs that were planned and some that were not planned i would recommend this company in a heartbeat..happy customer. Kevin and Jody Palmer"

Jody P on July 2025

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Heating and Air Conditioning questions, answered by experts

A power outage can damage your air conditioner, just like a power surge can damage any electrical device or appliance. In most cases, your circuit breaker or built-in surge protection on your AC unit protects your AC and just needs a reset. But in other cases, it might be that your AC compressor or capacitor was blown during the power surge. You’ll need to have an HVAC professional repair or replace any AC parts. 

No. With a ventless portable AC system, you don’t need to vent anything out the window—but it will be harder to circulate the hot air from the room without one, so you’ll need to come up with another solution, like placing a fan near a warm spot and facing it towards and open water to push the hot air out.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

AC leaks are common, and an HVAC pro can usually fix them. You may be able to resolve some leaks on your own, but a professional HVAC technician should handle most AC leak repair. If left ignored, an AC leak could cause serious damage to your system or leave you with expensive water damage, usually leading to more costly repairs or replacements.

For most systems, an annual HVAC system service is more than enough. Some homeowners prefer a twice-a-year visit to ensure the system is ready for the upcoming summer and winter seasons. If you need to call an HVAC pro more often than this, it may be time to check if your system is getting old enough for a replacement.

The Londonderry, NH homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
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