Get matched with top central a/c service or repairers in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Central a/c service or repairers in Dunstable
DG Wells Heating and Air Conditioning takes great pride in our experience, expertise, quality, and customer service. 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large, or small the job.
"DGWELLS installed heating and air conditioning in our new home 2 years ago. Did a great job. Courteous and neat. No problems whatsoever with our system. Called with questions that he readily answered and came by to show us how to change the filter last year. Cannot say enough good things about David Wells. Highly recommend him."
Don N on July 2020
DG Wells Heating and Air Conditioning takes great pride in our experience, expertise, quality, and customer service. 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large, or small the job.
"DGWELLS installed heating and air conditioning in our new home 2 years ago. Did a great job. Courteous and neat. No problems whatsoever with our system. Called with questions that he readily answered and came by to show us how to change the filter last year. Cannot say enough good things about David Wells. Highly recommend him."
Don N on July 2020
St Joseph Heating And Cooling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Very professional and very good work, super recommended!!"
Larissa L on April 2023
St Joseph Heating And Cooling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Very professional and very good work, super recommended!!"
Larissa L on April 2023
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"I had problems with my boiler and no one else was able to solve it and he was able to solve it right away without any issues. He really took his time and was very thorough with the work."
Allison R on November 2021
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"I had problems with my boiler and no one else was able to solve it and he was able to solve it right away without any issues. He really took his time and was very thorough with the work."
Allison R on November 2021
Since 1979, we've provided the highest quality protection against plumbing, heating, cooling, electrical and drain problems for residential and commercial and properties in the Merrimack Valley. At MillTown Plumbing, Heating, Cooling and Electrical, we're a family owned and operated business. We know the value of fast service, from a professional and reliable team. Give us a call today at (617) 725-2674! We look forward to serving you. Our Commitment to You Our fully licensed and bonded technicians are committed to answering your questions directly and honestly and solving your plumbing problems to your satisfaction. We'll even suggest the most cost effective solutions. Our plumbers are courteous, friendly and will always leave your home clean and work-sites tidy.
"Young man who came to do the job told us that they sent him to 3 wrong houses before they found ours. He proceeded to unclog the drain in the basement using the mechanical drain. Took him maybe an hour to clear it and also ran our sinks and toilets to make sure we wouldn?t have another problem. The young man left our house, however proceeded to sit in his running van, parked in my parking spot. I had no issues with this service until I saw the bill. $1000 to snake a drain for an hour? When we inquired about the bill they told us that their rate is 300$ an hour and that the job took 3 hours. In my opinion, if it takes you 3 hours to snake a drain, then someone should be fired or retrained at their job. My assumption is that their scheme involved sending this young man to multiple wrong houses and him sitting in my driveway for a prolong period of time, so that they could charge us for 3 hours of ?work.? "
M L on February 2025
Since 1979, we've provided the highest quality protection against plumbing, heating, cooling, electrical and drain problems for residential and commercial and properties in the Merrimack Valley. At MillTown Plumbing, Heating, Cooling and Electrical, we're a family owned and operated business. We know the value of fast service, from a professional and reliable team. Give us a call today at (617) 725-2674! We look forward to serving you. Our Commitment to You Our fully licensed and bonded technicians are committed to answering your questions directly and honestly and solving your plumbing problems to your satisfaction. We'll even suggest the most cost effective solutions. Our plumbers are courteous, friendly and will always leave your home clean and work-sites tidy.
"Young man who came to do the job told us that they sent him to 3 wrong houses before they found ours. He proceeded to unclog the drain in the basement using the mechanical drain. Took him maybe an hour to clear it and also ran our sinks and toilets to make sure we wouldn?t have another problem. The young man left our house, however proceeded to sit in his running van, parked in my parking spot. I had no issues with this service until I saw the bill. $1000 to snake a drain for an hour? When we inquired about the bill they told us that their rate is 300$ an hour and that the job took 3 hours. In my opinion, if it takes you 3 hours to snake a drain, then someone should be fired or retrained at their job. My assumption is that their scheme involved sending this young man to multiple wrong houses and him sitting in my driveway for a prolong period of time, so that they could charge us for 3 hours of ?work.? "
M L on February 2025
Here at Emerald HVAC LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. 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!
"Incredible job, fast, efficient, thorough. great communication. would recommend and use again"
Cynthia M on April 2025
Here at Emerald HVAC LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. 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!
"Incredible job, fast, efficient, thorough. great communication. would recommend and use again"
Cynthia M on April 2025
Were dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
Were dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Quick quote, quicker response to a needed situation. And job was done in one day. Updates throughout the day. Highly recommended"
DANIEL C on March 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Quick quote, quicker response to a needed situation. And job was done in one day. Updates throughout the day. Highly recommended"
DANIEL C on March 2025
N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we've installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers' needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England.
"From start to finish, NETR did a fantastic job. I met 3-4 other vendors, and they didn't come close to NETR's responsiveness, professionalism, or timeliness. NETR earned my business before I even got a quote from some of the others. The salesman, Mark, arrived on time, was respectful & attentive to what we needed, explained our options well, and provided a competitive quote before he left my home. NETR also offered a 5-year 0% interest loan for the project (via a relationship with GreenSky). It took only a few days to schedule installation. The installers were prompt, professional, respectful of our property, and did an excellent job installing the electrical components, compressor, branch box, and 5 heads. They did a nice job of consolidating and hiding the lines on the outside of the house. This past year, we've worked with many contractors, some good, some terrible, so I can compare. NETR was one of the best, and I would hire them for my next project in a heartbeat. "
John P on March 2025
N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we've installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers' needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England.
"From start to finish, NETR did a fantastic job. I met 3-4 other vendors, and they didn't come close to NETR's responsiveness, professionalism, or timeliness. NETR earned my business before I even got a quote from some of the others. The salesman, Mark, arrived on time, was respectful & attentive to what we needed, explained our options well, and provided a competitive quote before he left my home. NETR also offered a 5-year 0% interest loan for the project (via a relationship with GreenSky). It took only a few days to schedule installation. The installers were prompt, professional, respectful of our property, and did an excellent job installing the electrical components, compressor, branch box, and 5 heads. They did a nice job of consolidating and hiding the lines on the outside of the house. This past year, we've worked with many contractors, some good, some terrible, so I can compare. NETR was one of the best, and I would hire them for my next project in a heartbeat. "
John P on March 2025
For over 30 years in the neighborhood, 128 Plumbing, Heating, Cooling & Electric has provided the highest quality, efficiency, and reliability in its service to customers. Celebrating thousands of 5-star reviews online and an A+ Rating on BBB for years, the company has become the North Shore’s most trusted & consistent plumber, heating and air conditioning, and electrical service company. Proud to be titled a Diamond Elite Contractor with Mitsubishi Electric and a Mass Save Heat Pump Installer. We take pride in being there to pick up the phone every time with manufacturer-trained technicians and a commitment to providing customers with an easy, effortless customer service experience. You're guaranteed to be left with the service and price you were quoted with customized options for what's best for your home in the long-term. Specializes in Installation, Service, and Repair for Boilers, Furnaces, Air Conditioners and HVAC Systems, Tankless Water Heaters and Ductless Mini-Splits.
"they initially quoted $89 for AC diagnostics which is reasonable even though most companies charge nothing. Technician is very friendly and knowledgeable and walked me through the process. he checked the compressor outside and he suspected a leak. and then wanted to check the coil inside the blower. he detected a small leak with the electronic device. he mentioned coil may need replacement. After spending 10 mins in his truck to call the company he came back and said coil is not covered with warranty and quoted $5,400 to replace the coil and it is backordered for 6 weeks. 6 week will brings us to mid August so i told him i dont want to sign up for repair and wait 6 weeks. he then tried to sell me a maintenance plan which i declined. Then he said he will charge for the diagnostics which he spent total 30 mins including talking on the phone for warranty coverage. he said he did more than basic diagnostics which is $149. when he handed me the payment he added up initial $89 and $149 to pay $238 for 30 mins diagnostics. Total scam. i dont even know if they do any real work beyond the charging $238 for 30 mins diagnostics. probably they will hire a separate contractor to do the job and keep selling overpriced diagnostics and maintenance plans. They all you 10 times to sell you the initial diagnostics but after you pay $238 not even a single call to ask about experience. worst ever."
emre b on July 2023
For over 30 years in the neighborhood, 128 Plumbing, Heating, Cooling & Electric has provided the highest quality, efficiency, and reliability in its service to customers. Celebrating thousands of 5-star reviews online and an A+ Rating on BBB for years, the company has become the North Shore’s most trusted & consistent plumber, heating and air conditioning, and electrical service company. Proud to be titled a Diamond Elite Contractor with Mitsubishi Electric and a Mass Save Heat Pump Installer. We take pride in being there to pick up the phone every time with manufacturer-trained technicians and a commitment to providing customers with an easy, effortless customer service experience. You're guaranteed to be left with the service and price you were quoted with customized options for what's best for your home in the long-term. Specializes in Installation, Service, and Repair for Boilers, Furnaces, Air Conditioners and HVAC Systems, Tankless Water Heaters and Ductless Mini-Splits.
"they initially quoted $89 for AC diagnostics which is reasonable even though most companies charge nothing. Technician is very friendly and knowledgeable and walked me through the process. he checked the compressor outside and he suspected a leak. and then wanted to check the coil inside the blower. he detected a small leak with the electronic device. he mentioned coil may need replacement. After spending 10 mins in his truck to call the company he came back and said coil is not covered with warranty and quoted $5,400 to replace the coil and it is backordered for 6 weeks. 6 week will brings us to mid August so i told him i dont want to sign up for repair and wait 6 weeks. he then tried to sell me a maintenance plan which i declined. Then he said he will charge for the diagnostics which he spent total 30 mins including talking on the phone for warranty coverage. he said he did more than basic diagnostics which is $149. when he handed me the payment he added up initial $89 and $149 to pay $238 for 30 mins diagnostics. Total scam. i dont even know if they do any real work beyond the charging $238 for 30 mins diagnostics. probably they will hire a separate contractor to do the job and keep selling overpriced diagnostics and maintenance plans. They all you 10 times to sell you the initial diagnostics but after you pay $238 not even a single call to ask about experience. worst ever."
emre b on July 2023
Central a/c service or repairs FAQs
Yes, a once-a-year tune-up keeps the system efficient and helps it last longer. During the visit, a technician cleans coils, checks electrical connections, and swaps or cleans the filter. Catching small issues now stops bigger, pricier failures later, so that a quick appointment saves money and stress over the life of the unit.
Changing your AC filter every 30 days is necessary to maintain optimal performance and high indoor air quality. Regular filter replacement prevents dust buildup, ensures efficient airflow, and protects the system from stress that could lead to costly repairs. This disciplined maintenance routine not only boosts energy efficiency but also prolongs the lifespan of your unit by safeguarding its critical components.
An HVAC service plan is worth the cost, especially if you forget to schedule maintenance on your own. A service plan locks in yearly (or twice-yearly) visits, allowing a professional to identify small problems early, clean key components, and maintain energy efficiency. Many plans also include minor repairs or priority scheduling, which can pay for themselves if an unexpected issue pops up.
In a pre-season service visit, your technician gives your system a top-to-bottom check before peak season hits. Expect a filter change, thermostat test, condenser-line flush, electrical-connection check, and coil cleaning. They also tighten loose parts and make minor adjustments so the unit fires up without surprises when temperatures swing. That quick tune-up cuts the risk of mid-season breakdowns and keeps energy use in line.
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
