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Find Central humidifier installers and replacers in Charlestown

Avatar for St Joseph Heating And Cooling

St Joseph Heating And Cooling

33 Flint Road
4.90(
5
)
Approved Pro

St Joseph Heating And Cooling

33 Flint Road
4.90(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

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


Avatar for Venture Mechanical

Venture Mechanical

Located In: South Shore, Ma
5.00(
13
)
Approved Pro

Venture Mechanical

Located In: South Shore, Ma
5.00(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
99 local quotes requested

With Venture Mechanical we do any and all things involving residential and commercial Plumbing and HVAC! This includes maintaining, servicing and installing: Boilers, Furnaces, Mini-Splits, Heat Pumps, Tankless, Combination Units, Water Heaters and Air Purification. We do clean, quality reasonably priced work and always pick up the phone or text back! All works come with being licensed, insured and warrantied! We are happy with the chance of working for you!

"Dylan was amazing. My hvac person retired & I found Dylan when my Central air decided to act up. He explained my unit was in approaching its last days but he could attempt to repair it if I wished but I decided it was time to do a complete new heating & cooling system & he made it a easy process. No pressure & no stress. Now we’re ready for the heat wave that’s apon on us. Thank you Dylan & your team for your professionalism & great service. I highly recommend & they’re my go to for plumbing as well as I’m about to have them replace my hot water tank before it becomes an issue"

Dawn S on June 2025

With Venture Mechanical we do any and all things involving residential and commercial Plumbing and HVAC! This includes maintaining, servicing and installing: Boilers, Furnaces, Mini-Splits, Heat Pumps, Tankless, Combination Units, Water Heaters and Air Purification. We do clean, quality reasonably priced work and always pick up the phone or text back! All works come with being licensed, insured and warrantied! We are happy with the chance of working for you!

"Dylan was amazing. My hvac person retired & I found Dylan when my Central air decided to act up. He explained my unit was in approaching its last days but he could attempt to repair it if I wished but I decided it was time to do a complete new heating & cooling system & he made it a easy process. No pressure & no stress. Now we’re ready for the heat wave that’s apon on us. Thank you Dylan & your team for your professionalism & great service. I highly recommend & they’re my go to for plumbing as well as I’m about to have them replace my hot water tank before it becomes an issue"

Dawn S on June 2025


Avatar for NextGen Aire

NextGen Aire

18 Ayers Village Road
5.00(
8
)
Approved Pro

NextGen Aire

18 Ayers Village Road
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
112 local quotes requested

Founded by Matthew Girouard, NextGen Aire, LLC is an elite HVAC company that dramatically improves our customers comfort by providing top level education, integrity and honest solutions. We integrate the best technology with an industry leading service experience to provide tailored home comfort solutions to our customers. We have a team of experienced and certified technicians who are knowledgeable about the latest technologies and techniques in the industry. We are trained to diagnose and fix problems with HVAC systems quickly and efficiently, using the best tools and equipment available. We have strong customer service policies in place. This includes being punctual, respectful, and transparent with our clients. We offer flexible scheduling and emergency services to meet the needs of our customers. Our comfort team believes in a consultative sales experience that focuses on building a relationship with the customer and understanding your needs and challenges. It involves actively listening to the customer and asking questions to gather information, rather than simply trying to sell a product or service. We focus on helping the customer identify their goals and offer customized solutions that meet their specific needs. This may involve making recommendations, providing demos or product samples, or presenting options for the customer to consider. We also stand behind our work with industry leading guarantees.

"Really appreciate the help we received. We had an emergency and they were able to come out to help us quickly and resolved the issue for a fair price. Would definitely hire again."

Jason G on July 2024

Founded by Matthew Girouard, NextGen Aire, LLC is an elite HVAC company that dramatically improves our customers comfort by providing top level education, integrity and honest solutions. We integrate the best technology with an industry leading service experience to provide tailored home comfort solutions to our customers. We have a team of experienced and certified technicians who are knowledgeable about the latest technologies and techniques in the industry. We are trained to diagnose and fix problems with HVAC systems quickly and efficiently, using the best tools and equipment available. We have strong customer service policies in place. This includes being punctual, respectful, and transparent with our clients. We offer flexible scheduling and emergency services to meet the needs of our customers. Our comfort team believes in a consultative sales experience that focuses on building a relationship with the customer and understanding your needs and challenges. It involves actively listening to the customer and asking questions to gather information, rather than simply trying to sell a product or service. We focus on helping the customer identify their goals and offer customized solutions that meet their specific needs. This may involve making recommendations, providing demos or product samples, or presenting options for the customer to consider. We also stand behind our work with industry leading guarantees.

"Really appreciate the help we received. We had an emergency and they were able to come out to help us quickly and resolved the issue for a fair price. Would definitely hire again."

Jason G on July 2024


Avatar for Mechanical Maintenance and Prevention, LLC

Mechanical Maintenance and Prevention, LLC

70 Spring St
5.00(
3
)
Approved Pro

Mechanical Maintenance and Prevention, LLC

70 Spring St
5.00(
3
)
Approved Pro
Free onsite estimate
Emergency services offered

Welcome to Mechanical Maintenance and Prevention LLC, your trusted partner for all your H.V.A.C equipment maintenance and repair needs. We specialize in providing top-notch services to ensure the optimal performance and longevity of your heating, ventilation, and air conditioning systems. At Mechanical Maintenance and Prevention LLC, we take pride in our expertise and dedication to keeping your H.V.A.C equipment in top condition. With years of experience in the industry, our team is committed to providing reliable and efficient maintenance and repair services to meet your needs.

"Maintenance Mechanical always does a wonderful job, great service, friendly and professional staff"

brian D on September 2025

Welcome to Mechanical Maintenance and Prevention LLC, your trusted partner for all your H.V.A.C equipment maintenance and repair needs. We specialize in providing top-notch services to ensure the optimal performance and longevity of your heating, ventilation, and air conditioning systems. At Mechanical Maintenance and Prevention LLC, we take pride in our expertise and dedication to keeping your H.V.A.C equipment in top condition. With years of experience in the industry, our team is committed to providing reliable and efficient maintenance and repair services to meet your needs.

"Maintenance Mechanical always does a wonderful job, great service, friendly and professional staff"

brian D on September 2025


Avatar for Prestige Heating And Cooling

Prestige Heating And Cooling

15 Mcgrath Rd Unit 6
4.75(
8
)
Approved Pro

Prestige Heating And Cooling

15 Mcgrath Rd Unit 6
4.75(
8
)
Approved Pro
Customers say: Quick response
80 local quotes requested
8 years of experience

Prestige heating and cooling is a family owned business with over 30 years experience. We are available 24 hours a day, 7 days a week for you! Primarily serving the northeast of Massachusetts to satisfy all of your heating and air-conditioning needs. If water or air goes through it, call Prestige. 978-600-8764

"From start to finish they were very professional and knowledgeable about what we needed. Once we decided to go with them they arrived on the date set up and finished before the estimated time frame. The crew was phenomenal and before they left they made sure everything was working properly and showed us what we needed to know about the system. When they left everything was all cleaned up. We would highly recommend to anyone that needs their services."

Michael B on January 2024

Prestige heating and cooling is a family owned business with over 30 years experience. We are available 24 hours a day, 7 days a week for you! Primarily serving the northeast of Massachusetts to satisfy all of your heating and air-conditioning needs. If water or air goes through it, call Prestige. 978-600-8764

"From start to finish they were very professional and knowledgeable about what we needed. Once we decided to go with them they arrived on the date set up and finished before the estimated time frame. The crew was phenomenal and before they left they made sure everything was working properly and showed us what we needed to know about the system. When they left everything was all cleaned up. We would highly recommend to anyone that needs their services."

Michael B on January 2024


"I used to like them. Use them for my big install of backup basement sump pump. This time, I was out of the country, my rental property in MA needs a toilet fix. It was a standard water tank leak and we need to replace the inside mechanism. Milltown came and said 'rebulid the toilet', my wife authorize them to do it as I was not reachable at the time their plumber was at the rental property. They were in and out according to my tenant for at most 45 min, rebuilding two toilet tank and fixed the leak. The bill came to be 1200, $600 a toilet. One line item on the receipt is $470 for the kit they use to replace the plastic mechanism inside the water tank. I casually google the kit, I can get a universal sup kit for the toilet to replace that for $20. I called them, manager came on gave me that talk - we did hundreds of toilet leak and we average all of them to come up with the cost for that line item, which includes (a) parts (b) labor (c) our service guarantee for a prompt and reliable service Say they charge $200 /hr labor, 1 hr for two toilet is $100 labor for 1 toilet (remember, the plumber was there like 30-45 min rebuilding the two toilet). Say total parts are $100 (with markup), we are talking about $200 for fixing the leak of 1 toilet. They charged almost $600 for one toilet. You can do that math. I expect some up charge, but I am not paying $300 just for getting prompt reliable service. I turned around and asked for a few reliable plumber quote from Thumbstack with great reviews, most can do the job for $200 labor and I can get them the universal kit they will be able to come on the same day. So maybe if you want Milltown to do bigger job, that is ok. For smaller job, it does not worth it. Replacing the toilet flush mechanism is really not rocket science in plumbing. If I am not thousands of miles away, I would have done it myself after watching some Youtube video. I am willing to pay up charge for the service, but this is really above and beyond the normal up charge range, $1200 for a 30 min job replacing the toilet flushing mechanism in the water tank!!"

STEVE L on October 2024

At MillTown Plumbing, Heating, AC, Drain Cleaning & Electrical, we know the value of prompt, professional and reliable services and look forward to serving your needs in the Merrimack Valley. We're a same day/next day service company offering quality work and unbeatable service.

"I used to like them. Use them for my big install of backup basement sump pump. This time, I was out of the country, my rental property in MA needs a toilet fix. It was a standard water tank leak and we need to replace the inside mechanism. Milltown came and said 'rebulid the toilet', my wife authorize them to do it as I was not reachable at the time their plumber was at the rental property. They were in and out according to my tenant for at most 45 min, rebuilding two toilet tank and fixed the leak. The bill came to be 1200, $600 a toilet. One line item on the receipt is $470 for the kit they use to replace the plastic mechanism inside the water tank. I casually google the kit, I can get a universal sup kit for the toilet to replace that for $20. I called them, manager came on gave me that talk - we did hundreds of toilet leak and we average all of them to come up with the cost for that line item, which includes (a) parts (b) labor (c) our service guarantee for a prompt and reliable service Say they charge $200 /hr labor, 1 hr for two toilet is $100 labor for 1 toilet (remember, the plumber was there like 30-45 min rebuilding the two toilet). Say total parts are $100 (with markup), we are talking about $200 for fixing the leak of 1 toilet. They charged almost $600 for one toilet. You can do that math. I expect some up charge, but I am not paying $300 just for getting prompt reliable service. I turned around and asked for a few reliable plumber quote from Thumbstack with great reviews, most can do the job for $200 labor and I can get them the universal kit they will be able to come on the same day. So maybe if you want Milltown to do bigger job, that is ok. For smaller job, it does not worth it. Replacing the toilet flush mechanism is really not rocket science in plumbing. If I am not thousands of miles away, I would have done it myself after watching some Youtube video. I am willing to pay up charge for the service, but this is really above and beyond the normal up charge range, $1200 for a 30 min job replacing the toilet flushing mechanism in the water tank!!"

STEVE L on October 2024


Avatar for Veteran Refrigeration

Veteran Refrigeration

401 Brook Street
5.00(
5
)
Approved Pro

Veteran Refrigeration

401 Brook Street
5.00(
5
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

We specialize in commercial/ residential HVAC and refrigeration repairs. We install and replace all HVAC and refrigeration systems. we provide comprehensive heating and cooling solutions to enhance indoor comfort and air quality. From system installations to routine maintenance, our team is committed to delivering reliable and cost-effective residential HVAC services that meet the specific needs of homeowners. Contact us today for a FREE quote!

"Hired veteran refrigeration for an emergency repair, The owner David showed up within the hour and was very knowledgeable and professional. Best mobile business around a complete 10/10."

samuel d on September 2024

We specialize in commercial/ residential HVAC and refrigeration repairs. We install and replace all HVAC and refrigeration systems. we provide comprehensive heating and cooling solutions to enhance indoor comfort and air quality. From system installations to routine maintenance, our team is committed to delivering reliable and cost-effective residential HVAC services that meet the specific needs of homeowners. Contact us today for a FREE quote!

"Hired veteran refrigeration for an emergency repair, The owner David showed up within the hour and was very knowledgeable and professional. Best mobile business around a complete 10/10."

samuel d on September 2024


Avatar for Hoover Home Systems Inc

Hoover Home Systems Inc

915 Main Street
5.00(
2
)
Approved Pro

Hoover Home Systems Inc

915 Main Street
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

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.

"Fairly priced...great communication. Work was completed in a timely manner. Highly recommended."

charles b on March 2008

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.

"Fairly priced...great communication. Work was completed in a timely manner. Highly recommended."

charles b on March 2008


Avatar for Harborside Heating & Cooling LLC

Harborside Heating & Cooling LLC

312 Forest Street
5.00(
1
)
Approved Pro

Harborside Heating & Cooling LLC

312 Forest Street
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

HARBORSIDE HEATING & COOLING LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Prompt, affordable and great customer service. Will use them exclusively going forward. Zero hesitation in recommending Ben and his team. Theyâ re great at what they do and a pleasure to work with."

Kyle L on December 2024

HARBORSIDE HEATING & COOLING LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Prompt, affordable and great customer service. Will use them exclusively going forward. Zero hesitation in recommending Ben and his team. Theyâ re great at what they do and a pleasure to work with."

Kyle L on December 2024


Avatar for O'Hara Heating And Cooling

O'Hara Heating And Cooling

354 Hamilton St
4.94(
9
)
Approved Pro

O'Hara Heating And Cooling

354 Hamilton St
4.94(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

OHara 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.

"Mike did work in my area that had great reviews! He was on time, efficient, and on budget. We met made a plan, done. Everything works great. Thank you very much. Five stars from the get go !"

Bill I on August 2024

OHara 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.

"Mike did work in my area that had great reviews! He was on time, efficient, and on budget. We met made a plan, done. Everything works great. Thank you very much. Five stars from the get go !"

Bill I on August 2024

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FAQs for central humidifier installation and replacement projects in Charlestown, MA

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 Charlestown, MA 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.

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