Top-rated central humidifier installers and replacers.

Get matched with top central humidifier installers and replacers in Plaistow, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Central humidifier installers and replacers in Plaistow

Cool Air

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Cool Air

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
16 years of experience
Free onsite estimate

At Cool Air, 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 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.

At Cool Air, 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 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.


Avatar for Druziako HVAC Inc

Druziako HVAC Inc

4.84(
140
)
Approved Pro

Druziako HVAC Inc

4.84(
140
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
93 local quotes requested

Since 1990, we’ve proudly served our community as a trusted, family-run HVAC company focused on quality, reliability, and honest service. With over three decades of experience, we specialize in the installation, replacement, and service of top heating and cooling brands including Carrier, Bryant, and Rheem. Our certified technicians take the time to size your system properly, install it the right way, and make sure you understand your new equipment. We stand behind our work with industry-leading manufacturer warranties—up to 10 years on many systems—and dependable local support you can count on long after the install is complete. Whether you need a high-efficiency furnace, central AC, heat pump, or a complete system upgrade, we deliver comfort solutions designed to last.

"Timely and very fair price"

Ken F on September 2024

Since 1990, we’ve proudly served our community as a trusted, family-run HVAC company focused on quality, reliability, and honest service. With over three decades of experience, we specialize in the installation, replacement, and service of top heating and cooling brands including Carrier, Bryant, and Rheem. Our certified technicians take the time to size your system properly, install it the right way, and make sure you understand your new equipment. We stand behind our work with industry-leading manufacturer warranties—up to 10 years on many systems—and dependable local support you can count on long after the install is complete. Whether you need a high-efficiency furnace, central AC, heat pump, or a complete system upgrade, we deliver comfort solutions designed to last.

"Timely and very fair price"

Ken F on September 2024


Avatar for Atlantic Heating & Air Conditioning

Atlantic Heating & Air Conditioning

4.15(
140
)
Approved Pro

Atlantic Heating & Air Conditioning

4.15(
140
)
Approved Pro
Customers say: Quality work
60 local quotes requested
63 years of experience

Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!

"Very well, above and beyond the call of duty."

Karen S on January 2023

Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!

"Very well, above and beyond the call of duty."

Karen S on January 2023


Avatar for 603 MECHANICAL

603 MECHANICAL

5.00(
3
)
Approved Pro

603 MECHANICAL

5.00(
3
)
Approved Pro
Customers say: Quick response
24 local quotes requested
3 years of experience

With more than 15 yrs of experience, 603 Refrigeration LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"The gentlemaen that have come to my house from this company have been spectacular. They came on time they’re efficient. There’s no nonsense. They found a problem replaced it and said please call back if there’s a problem and they couldn’t have been nicer. I would highly highly recommend them to anyone "

james F s on August 2025

With more than 15 yrs of experience, 603 Refrigeration LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"The gentlemaen that have come to my house from this company have been spectacular. They came on time they’re efficient. There’s no nonsense. They found a problem replaced it and said please call back if there’s a problem and they couldn’t have been nicer. I would highly highly recommend them to anyone "

james F s on August 2025


"The heat pump was installed and it looked good but was whistling badly. The McGinley son left without any promise of a resolution. Stupidly, I gave him a check for the balance. Next day I called ACIQ customer service and they wanted the phone number of the installer. So I asked Bill M. for his son's phone number, which I'd never had. Very strange, he wouldn't provide the number right away and said maybe after the weekend. Anyway he never provided it. So I stopped payment on the check. When Mr. McGinley realized he wasn't getting paid, he came up to investigate himself. I meet him and we figured out the problem, which we fixed with a piece of tape. I then gave Bill another check for the balance which he later cashed. Subsequently, I asked for the invoice which I needed to submit a rebate application to NHSaves. For weeks I've heard excuses and still have not received an invoice. That is not acceptable for a company listed as an Angi Pro."

Tom A on November 2025

McGinley & Sons: Your trusted Heating and AC Repair experts in New Hampshire. We are a family owned & operated business, with no subcontractors. Our cost is determined by the job. Contact us today!

"The heat pump was installed and it looked good but was whistling badly. The McGinley son left without any promise of a resolution. Stupidly, I gave him a check for the balance. Next day I called ACIQ customer service and they wanted the phone number of the installer. So I asked Bill M. for his son's phone number, which I'd never had. Very strange, he wouldn't provide the number right away and said maybe after the weekend. Anyway he never provided it. So I stopped payment on the check. When Mr. McGinley realized he wasn't getting paid, he came up to investigate himself. I meet him and we figured out the problem, which we fixed with a piece of tape. I then gave Bill another check for the balance which he later cashed. Subsequently, I asked for the invoice which I needed to submit a rebate application to NHSaves. For weeks I've heard excuses and still have not received an invoice. That is not acceptable for a company listed as an Angi Pro."

Tom A on November 2025


"Prompt, quick fix, reasonable price"

Cindy J on December 2025

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Maine – bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service.

"Prompt, quick fix, reasonable price"

Cindy J on December 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
107 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


Avatar for Walley’s Heating & Air Conditioning

Walley’s Heating & Air Conditioning

4.88(
96
)
Approved Pro

Walley’s Heating & Air Conditioning

4.88(
96
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
25 local quotes requested

Walley’s is not your average HVAC contractor. From our in-house sales and support center to our modern fleet of licensed technicians, our team has the tools, trucks, and training to handle all of your mechanical needs. But more than that, we are committed to giving back and playing a bigger role in our community. Through our work with local charities, educational providers, and our continued efforts towards promoting energy-efficient products, ethical business practices, and enforcing the highest industry standards, Walley’s is delivering real value to the community every day! Our entire team is grateful for the opportunity to show you what we are made of. Thank you for your consideration.

"Badly. 2 different techs came out. We paid for a Premium service and within hours of that tech coming out, our burner stopped working completely. Mind you there is a snowstorm. They sent out a new technician and he saw nothing wrong with the system at all. He said we had no oil. He said there was no footprints even going to my intake on the side of my house. It had snowed 2 times since oil was delivered, so that makes no sense. The tech was absolutely sure we had no oil. 3 days since the first visit now and we had oil delivered and the tank filled completely. Only 150 gallons went into my 250 gallon tank. So that's wrong. And I look at the front of my furnace and now see a slow drip from the front underneath the box on the front of the furnace. First tech recommended i replace the electrodes but said it didnt need it. Second tech didnt even mention that and said our system was good. Now, I will have to contact Angi for support and my insurance company. TERRIBLE TERRIBLE TERRIBLE"

Paul C on February 2025

Walley’s is not your average HVAC contractor. From our in-house sales and support center to our modern fleet of licensed technicians, our team has the tools, trucks, and training to handle all of your mechanical needs. But more than that, we are committed to giving back and playing a bigger role in our community. Through our work with local charities, educational providers, and our continued efforts towards promoting energy-efficient products, ethical business practices, and enforcing the highest industry standards, Walley’s is delivering real value to the community every day! Our entire team is grateful for the opportunity to show you what we are made of. Thank you for your consideration.

"Badly. 2 different techs came out. We paid for a Premium service and within hours of that tech coming out, our burner stopped working completely. Mind you there is a snowstorm. They sent out a new technician and he saw nothing wrong with the system at all. He said we had no oil. He said there was no footprints even going to my intake on the side of my house. It had snowed 2 times since oil was delivered, so that makes no sense. The tech was absolutely sure we had no oil. 3 days since the first visit now and we had oil delivered and the tank filled completely. Only 150 gallons went into my 250 gallon tank. So that's wrong. And I look at the front of my furnace and now see a slow drip from the front underneath the box on the front of the furnace. First tech recommended i replace the electrodes but said it didnt need it. Second tech didnt even mention that and said our system was good. Now, I will have to contact Angi for support and my insurance company. TERRIBLE TERRIBLE TERRIBLE"

Paul C on February 2025


Avatar for Heritage Home Service

Heritage Home Service

4.52(
963
)
Approved Pro

Heritage Home Service

4.52(
963
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
290 local quotes requested

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"The estimate of the job was fair and reasonable. They quickly got to work and finished a difficult job within the timeframe quoted."

Richard C on December 2025

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"The estimate of the job was fair and reasonable. They quickly got to work and finished a difficult job within the timeframe quoted."

Richard C on December 2025


Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

4.68(
4,793
)
Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

4.68(
4,793
)
Approved Pro
Customers say: Super punctual
661 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

...
Showing 1-10 of 455
FAQs for central humidifier installation and replacement projects in Plaistow, NH

Aim for indoor humidity between 30% and 50%, with the sweet spot around 45%. That range keeps mold, dust mites, and musty odors in check while protecting drywall and woodwork. Staying in the zone also helps your HVAC system run more efficiently and supports healthier air for you and your family year-round, during hot summers and cold winter months.

With routine filter changes and coil cleanings, most whole-house units run for eight to 15 years. Heavy use, poor air quality, or bargain-bin equipment can shorten that span, while a well-maintained, high-quality model often makes it to the upper end of the range. Ask your installer about recommended service intervals to get the most mileage from your investment.

It depends on your climate. Homes in cold, dry regions can often shut the dehumidifier off once winter sets in. If you live in a warm, humid area—or your house tends to trap moisture—you may need to keep it running year-round. Use a simple hygrometer: if readings stay below 50%, give the unit a rest. Just remember to restart it when humidity climbs again to avoid mold and condensation.

Dry air feels cooler, so your AC doesn’t have to work as hard. By stripping out excess moisture, the dehumidifier lets you raise the thermostat a few degrees without losing comfort. A shorter AC runtime reduces electricity use and can shave a noticeable amount off your summer power bill. Energy-efficient models further enhance those savings.

If your home is under about 2,000 square feet, a well-placed portable unit can handle the load. Just remember they’re less efficient and need hands-on upkeep—think emptying tanks and cleaning filters. If you prefer set-and-forget convenience or plan to expand your living space, a whole-house model still offers better long-term comfort and lower energy use per square foot.

The Plaistow, NH homeowners’ guide to central humidifier installations and replacements

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