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Find Central humidifier installers and replacers in Hollis

Avatar for Clear All Cooling and Heating, LLC

Clear All Cooling and Heating, LLC

4.99(
87
)
Approved Pro

Clear All Cooling and Heating, LLC

4.99(
87
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We are dedicated to providing our clients with the very best in installation, service and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central air conditioning and cooling systems as well as oil heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction.

"grate company, job was done professionally and pricing was fair. grate customer service calls or text massages are answered in no time. highly recommend."

sead k on July 2023

We are dedicated to providing our clients with the very best in installation, service and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central air conditioning and cooling systems as well as oil heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction.

"grate company, job was done professionally and pricing was fair. grate customer service calls or text massages are answered in no time. highly recommend."

sead k on July 2023


Avatar for JOYCE COOLING & HEATING INC

JOYCE COOLING & HEATING INC

4.90(
187
)
Approved Pro

JOYCE COOLING & HEATING INC

4.90(
187
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
31 years of experience

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 sales@joycecool.com.

"Joyce Cooling and Heating installed a new high-efficiency Lennox furnace and air conditioner. The installation looks great and was professionally completed. The furnace is working fantastic and is so quiet we can't even hear it running. We are warm and comfortable all the time and the new high-efficiency design should save us money for many years to come. The technicians answered all of my numerous questions."

Ernie J on November 2020

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 sales@joycecool.com.

"Joyce Cooling and Heating installed a new high-efficiency Lennox furnace and air conditioner. The installation looks great and was professionally completed. The furnace is working fantastic and is so quiet we can't even hear it running. We are warm and comfortable all the time and the new high-efficiency design should save us money for many years to come. The technicians answered all of my numerous questions."

Ernie J on November 2020


Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

4.68(
4,795
)
Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

4.68(
4,795
)
Approved Pro
Customers say: Super punctual
37 years of experience
Free onsite estimate

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!

"No invoice transparency at Sila Heating, Cooling, Plumbing, and Electrical. I had an appointment on February 16, 2026, to troubleshoot a no-heat issue on the second floor of my home. I was told the repair would be $1,500. Although hesitant, I agreed to proceed because I needed heat. The repair was completed, I paid $1,524.90, and the technician left. I later realized I had not been provided with an invoice, so I called the company directly at 781 438 4114. The person who answered the phone emailed me an invoice. The invoice listed an HVAC diagnostic fee of $69.00, followed by ?HYD 170,? with no price or itemized breakdown provided. I understand that professional services and parts can incur significant costs, it is unreasonable that the part alone could account for the entire charge without any supporting documentation. I respectfully requested a detailed breakdown of the invoice through multiple phone calls and emails; however, the responses I received were dismissive and failed "

Diane C on February 2026

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!

"No invoice transparency at Sila Heating, Cooling, Plumbing, and Electrical. I had an appointment on February 16, 2026, to troubleshoot a no-heat issue on the second floor of my home. I was told the repair would be $1,500. Although hesitant, I agreed to proceed because I needed heat. The repair was completed, I paid $1,524.90, and the technician left. I later realized I had not been provided with an invoice, so I called the company directly at 781 438 4114. The person who answered the phone emailed me an invoice. The invoice listed an HVAC diagnostic fee of $69.00, followed by ?HYD 170,? with no price or itemized breakdown provided. I understand that professional services and parts can incur significant costs, it is unreasonable that the part alone could account for the entire charge without any supporting documentation. I respectfully requested a detailed breakdown of the invoice through multiple phone calls and emails; however, the responses I received were dismissive and failed "

Diane C on February 2026


Avatar for Palmer Gas & Oil

Palmer Gas & Oil

4.76(
71
)
Approved Pro

Palmer Gas & Oil

4.76(
71
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
94 years of experience

Family-owned and operated propane and fuel oil delivery and service company with a 90-year history serving New Hampshire, Northern MA and Southern ME. Our friendly, simple and safe fuel delivery and service programs keep our customers warm in the winter and cool in the summer. Automatic delivery, easy billing, and maintenance plans make it easy to keep your tank full and your equipment in tip-top shape. A one-stop shop, in addition to fuel we also offer equipment sales and service, installation, and electrician services. Best of all, we show up to work every day with a SMILE on our face! Giving to the community is also very important to us. We support local Fire and Police Departments, libraries, youth leagues and fraternal organizations from various towns. We are continually working to be a “cut above the rest.” We hope this makes a difference to you and your community.

"PALMER GAS & OIL in Atkinson NH After 39 years with this company and at every residence since 1986, in new home commercial construction, this company is charging me $189 to remove "their" tanks from my property. I have never been late with a payment in almost 40 years. I found propane at a significantly lower rate, so I had to switch. I highly recommend Irving Oil & Gas, and say, BEWARE of Palmer Gas & Oil. expensive and greedy, no loyalty to good customers."

Donna r on November 2025

Family-owned and operated propane and fuel oil delivery and service company with a 90-year history serving New Hampshire, Northern MA and Southern ME. Our friendly, simple and safe fuel delivery and service programs keep our customers warm in the winter and cool in the summer. Automatic delivery, easy billing, and maintenance plans make it easy to keep your tank full and your equipment in tip-top shape. A one-stop shop, in addition to fuel we also offer equipment sales and service, installation, and electrician services. Best of all, we show up to work every day with a SMILE on our face! Giving to the community is also very important to us. We support local Fire and Police Departments, libraries, youth leagues and fraternal organizations from various towns. We are continually working to be a “cut above the rest.” We hope this makes a difference to you and your community.

"PALMER GAS & OIL in Atkinson NH After 39 years with this company and at every residence since 1986, in new home commercial construction, this company is charging me $189 to remove "their" tanks from my property. I have never been late with a payment in almost 40 years. I found propane at a significantly lower rate, so I had to switch. I highly recommend Irving Oil & Gas, and say, BEWARE of Palmer Gas & Oil. expensive and greedy, no loyalty to good customers."

Donna r on November 2025


Avatar for Unique Indoor Comfort Heating & Cooling

Unique Indoor Comfort Heating & Cooling

4.71(
45
)
Approved Pro

Unique Indoor Comfort Heating & Cooling

4.71(
45
)
Approved Pro
Customers say: Quick response
59 years of experience
Free onsite estimate

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.

"Our daughter and her husband are living out of the country, temporarily. When their leasees said the furnace was blowing cold air, we wanted the repair done quickly and at a good price. Unique Indoor Comfort Heating & Cooling responded right away and came to the property the same day we called. Very professional! "

Dwight P on March 2026

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.

"Our daughter and her husband are living out of the country, temporarily. When their leasees said the furnace was blowing cold air, we wanted the repair done quickly and at a good price. Unique Indoor Comfort Heating & Cooling responded right away and came to the property the same day we called. Very professional! "

Dwight P on March 2026


Avatar for Heritage Home Service

Heritage Home Service

4.52(
967
)
Approved Pro

Heritage Home Service

4.52(
967
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
38 years of experience

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.

"They were A pleasure to work with. "

Maria S on February 2026

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.

"They were A pleasure to work with. "

Maria S on February 2026


Avatar for Elemental Heating & Cooling

Elemental Heating & Cooling

5.00(
11
)
Approved Pro

Elemental Heating & Cooling

5.00(
11
)
Approved Pro
Customers say: Terrific value
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
6 years of experience

At Elemental Heating & Cooling, we're excited to earn your business! Locally owned and operated, we are known in the area for our prompt service and attention to detail. Customer satisfaction is always our primary concern, so be sure to give us a call today!

"These guys were great. AC stopped working last night, all I could think was there goes a thousand dollars. They got back to me super fast and had my AC working in no time., for much less than I was afraid of."

Yuri S on May 2024

At Elemental Heating & Cooling, we're excited to earn your business! Locally owned and operated, we are known in the area for our prompt service and attention to detail. Customer satisfaction is always our primary concern, so be sure to give us a call today!

"These guys were great. AC stopped working last night, all I could think was there goes a thousand dollars. They got back to me super fast and had my AC working in no time., for much less than I was afraid of."

Yuri S on May 2024


Avatar for Granite State Refrigeration Services LLC

Granite State Refrigeration Services LLC

5.00(
10
)
Approved Pro

Granite State Refrigeration Services LLC

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
Free onsite estimate

We are a small family owned and operated business with a goal to provide exceptional service at an affordable price. We offer a wide range of HVAC services, including installation and service of Ductless Mini Splits, Conventional Heat Pump/ Air Handlers, Furnaces, Rooftop Package Units, and Refrigeration Systems both in the residential and commercial settings. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Fantastic service!"

Kevin B on May 2025

We are a small family owned and operated business with a goal to provide exceptional service at an affordable price. We offer a wide range of HVAC services, including installation and service of Ductless Mini Splits, Conventional Heat Pump/ Air Handlers, Furnaces, Rooftop Package Units, and Refrigeration Systems both in the residential and commercial settings. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Fantastic service!"

Kevin B on May 2025


Avatar for Climate Design Systems, LLC

Climate Design Systems, LLC

5.00(
5
)
Approved Pro

Climate Design Systems, LLC

5.00(
5
)
Approved Pro
80 years of experience
Free onsite estimate

Climate Design Systems has been around since 1946! We are an HVAC & Plumbing company that is full licensed to serve Massachusetts, New Hampshire, and southern Maine. We pride ourselves on quality workmanship and outstanding customer service. There is no job too big or too small! We offer Residential & Commercial HVAC services such as; -maintenance -repair -replacement/retrofit -new construction We offer Residential & Commercial Plumbing services such as; -water leak repair -drain repair -fixture replacement -boiler repair & installation -water heater repair & installation -water treatment

Climate Design Systems has been around since 1946! We are an HVAC & Plumbing company that is full licensed to serve Massachusetts, New Hampshire, and southern Maine. We pride ourselves on quality workmanship and outstanding customer service. There is no job too big or too small! We offer Residential & Commercial HVAC services such as; -maintenance -repair -replacement/retrofit -new construction We offer Residential & Commercial Plumbing services such as; -water leak repair -drain repair -fixture replacement -boiler repair & installation -water heater repair & installation -water treatment


"They were honest upfront even came to my work to explain evrything finished in one day would recommend them "

Lori D on January 2026

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!

"They were honest upfront even came to my work to explain evrything finished in one day would recommend them "

Lori D on January 2026

Showing 1-10 of 17
FAQs for central humidifier installation and replacement projects in Hollis, NH

A crawl space dehumidifier is a worthwhile investment, particularly in humid climates or if you've noticed musty odors, mold growth, or wood deterioration. Though costs range from $3,000 to $9,200, this investment helps prevent structural damage that could require far more expensive repairs later. Beyond structural protection, a properly dehumidified crawl space contributes to better overall indoor air quality and may reduce allergens throughout your home. Consider having a professional assessment to determine if your specific situation warrants this investment.

Addressing crawl space moisture effectively often requires a combination of solutions. A complete approach includes encapsulation plus dehumidifier installation. For minor moisture issues, a basic dehumidifier starting at $1,500 may suffice, while severe problems in larger spaces could require systems costing up to $14,000. The most effective moisture control strategy depends on your specific conditions, making a professional assessment valuable for determining the most cost-effective approach for your situation.

For a crawl space measuring 1,500 square feet, you'll need a dehumidifier with a daily capacity of 30 to 50 pints, with unit costs ranging from $150 to $600. Your local climate and existing moisture levels may necessitate adjusting this capacity—homes in particularly humid regions might benefit from higher-capacity units. Professional installers can measure your specific humidity conditions and recommend equipment that is appropriately sized, balancing initial cost with operating efficiency for your unique situation.

Crawl space dehumidifiers add $300 to $500 to your annual electricity expenses when operating continuously. Energy-efficient models reduce this consumption by roughly 15 to 30% compared to standard units. Most contemporary dehumidifiers feature humidity sensors that automatically cycle operation based on current conditions, helping manage energy usage. Proper crawl space encapsulation significantly improves efficiency by creating a controlled environment that requires less dehumidifier runtime, thereby reducing ongoing electricity costs.

The Hollis, 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.

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