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Geothermal heating or cooling system installers in Dover

Avatar for Heritage Home Service
Heritage Home Service
179 Lafayette Rd
5.00(
9
)
Approved Pro
Heritage Home Service
179 Lafayette Rd
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
246 local quotes requested

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.

"Ryan Boulanger was quite professional and comfortable to work with as he did the annual maintenance review of my Alpine burner. He explained the work he needed to do and what he did with knowledge and understanding and helped me to understand. Thanks for your work, Ryan."

David H on May 2023

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.

"Ryan Boulanger was quite professional and comfortable to work with as he did the annual maintenance review of my Alpine burner. He explained the work he needed to do and what he did with knowledge and understanding and helped me to understand. Thanks for your work, Ryan."

David H on May 2023


Avatar for Heritage Home Service
Heritage Home Service
28 Commercial Ct
4.03(
454
)
Approved Pro
Heritage Home Service
28 Commercial Ct
4.03(
454
)
Approved Pro
Customers say: Super punctual
1098 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!

"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."

Craig V on November 2024

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!

"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."

Craig V on November 2024


Avatar for DeSantis Heating and Cooling
DeSantis Heating and Cooling
44 Hall Rd
5.00(
4
)
Approved Pro
DeSantis Heating and Cooling
44 Hall Rd
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
631 local quotes requested

***WE DO NOT SERVICE HOT WATER** DeSantis heating and cooling is a family owned business. We have 23 years of business and still going strong. We specialize in whole house hvac installs and mini split installs.

"DeSantis heating saved me over 8000 dollars. A previous company told me I needed a new furnace after 15 minutes DeSantis repaired it on the existing furnace costing me 79 dollars."

Gary B on December 2024

***WE DO NOT SERVICE HOT WATER** DeSantis heating and cooling is a family owned business. We have 23 years of business and still going strong. We specialize in whole house hvac installs and mini split installs.

"DeSantis heating saved me over 8000 dollars. A previous company told me I needed a new furnace after 15 minutes DeSantis repaired it on the existing furnace costing me 79 dollars."

Gary B on December 2024


davis construction
New on HomeAdvisorNew on Angi
Approved Pro
davis construction
New on AngiNew on HomeAdvisor
Approved Pro
260 local quotes requested
2 years of experience

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!


Avatar for Done Right Handyman Service
Done Right Handyman Service
3.77(
13
)
Approved Pro
Done Right Handyman Service
3.77(
13
)
Approved Pro
Customers say: Terrific value
590 local quotes requested
13 years of experience

Family owned handyman services. Licensed and fully insured. Quality workmanship. We guarantee it is done right the first time.

"I hired Daniel to replace a door and replace weatherstripping around two other doors. He also painted my back door. The weatherstripping soon failed and came off the doors, and the paint job was poorly executed. This spring, I was preparing to move and discovered that he had dumped all his construction debris, including the old door, behind my garage and onto my neighbor's property. I also discovered he had thrown scrap wood in my bushes next to the house. He also had issues with promptness."

Lundy S on April 2025

Family owned handyman services. Licensed and fully insured. Quality workmanship. We guarantee it is done right the first time.

"I hired Daniel to replace a door and replace weatherstripping around two other doors. He also painted my back door. The weatherstripping soon failed and came off the doors, and the paint job was poorly executed. This spring, I was preparing to move and discovered that he had dumped all his construction debris, including the old door, behind my garage and onto my neighbor's property. I also discovered he had thrown scrap wood in my bushes next to the house. He also had issues with promptness."

Lundy S on April 2025


Avatar for Busby Home Services
Busby Home Services
8 Abundance Way
5.00(
7
)
Approved Pro
Busby Home Services
8 Abundance Way
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
281 local quotes requested

Owned and operated by Ryan Busby in Alfred, Maine, Busby Home Services is dedicated to keeping your house looking and functioning great. I pride myself on clear communication, attention to detail, and caring for your home like it was my own. I will ensure your task is done with care in a timely manner. Don’t risk damage to your home or injury to yourself trying to DIY. Contact us today to schedule an appointment and enjoy the peace of mind that comes with a clean, well-maintained home!

"Ryan did excellent work! He is meticulous in his approach to his work, diligently paying attention to details. He is an excellent craftsman and a great individual! He presents as highly professional and genuine!"

Carole S on April 2025

Owned and operated by Ryan Busby in Alfred, Maine, Busby Home Services is dedicated to keeping your house looking and functioning great. I pride myself on clear communication, attention to detail, and caring for your home like it was my own. I will ensure your task is done with care in a timely manner. Don’t risk damage to your home or injury to yourself trying to DIY. Contact us today to schedule an appointment and enjoy the peace of mind that comes with a clean, well-maintained home!

"Ryan did excellent work! He is meticulous in his approach to his work, diligently paying attention to details. He is an excellent craftsman and a great individual! He presents as highly professional and genuine!"

Carole S on April 2025


Avatar for Freedom Air Mechanical
Freedom Air Mechanical
150 Mount Hope Rd
4.77(
13
)
Approved Pro
Freedom Air Mechanical
150 Mount Hope Rd
4.77(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
565 local quotes requested

As a Veteran owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. With attention to detail and a great work ethic your project is in good hands. We work with you to make sure the end result meets your needs. Our work is done with integrity, and it will show in the completion of your project. We are an Efficiency Maine Registered Contractor and are also a contractor for the NEIF. We install heat pumps low temp or standard temp applications. We use manufacturers such as Mitsubishi, Gree or Daikin. These systems can provide low temp heating options down to -22 degrees! We provide installations of Hybrid Water Heaters, Gas and or Oil fired boiler replacements. We also offer Warm air furnace replacements and central ac replacements. Anything hvac/r related we can do. With over 23 years in the field residential/commercial our techs can handle any project. Give us a call at 207-849-0238 or check out our website freedomairhvacr.com to schedule a free estimate today!

"Diagnosed the problem and repaired in a timely manner"

Jim H on July 2024

As a Veteran owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. With attention to detail and a great work ethic your project is in good hands. We work with you to make sure the end result meets your needs. Our work is done with integrity, and it will show in the completion of your project. We are an Efficiency Maine Registered Contractor and are also a contractor for the NEIF. We install heat pumps low temp or standard temp applications. We use manufacturers such as Mitsubishi, Gree or Daikin. These systems can provide low temp heating options down to -22 degrees! We provide installations of Hybrid Water Heaters, Gas and or Oil fired boiler replacements. We also offer Warm air furnace replacements and central ac replacements. Anything hvac/r related we can do. With over 23 years in the field residential/commercial our techs can handle any project. Give us a call at 207-849-0238 or check out our website freedomairhvacr.com to schedule a free estimate today!

"Diagnosed the problem and repaired in a timely manner"

Jim H on July 2024


Avatar for Granite Guardian Property Maintenance
Granite Guardian Property Maintenance
60 Hunter Drive
5.00(
7
)
Approved Pro
Granite Guardian Property Maintenance
60 Hunter Drive
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
551 local quotes requested

We are a full service Property Management and Maintenance company with over 50 Years of experience. We can help out with any handyman and home maintenance needed. Call -or- click to schedule a free estimate today!

"Chad and his crew are the best. They went above and beyond to fix my house. The crew did an excellent job on a really challenging project at the same time were polite, kind and addressed all my needs I will never hire anyone else for any work I may need."

Marie F on March 2024

We are a full service Property Management and Maintenance company with over 50 Years of experience. We can help out with any handyman and home maintenance needed. Call -or- click to schedule a free estimate today!

"Chad and his crew are the best. They went above and beyond to fix my house. The crew did an excellent job on a really challenging project at the same time were polite, kind and addressed all my needs I will never hire anyone else for any work I may need."

Marie F on March 2024


Avatar for Palmer Gas & Oil
Palmer Gas & Oil
13 Hall Farm Rd
4.77(
75
)
Approved Pro
Palmer Gas & Oil
13 Hall Farm Rd
4.77(
75
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
657 local quotes requested

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.

"We recently switched our provider of propane to Palmer Gas & Oil and have been extremely happy with the process. Both Michelle and Kim were great on the phone, setting up our account, determining our needs, scheduling our installation and answering our questions. During our site survey it was clear that Michelle was quite experienced and made the next steps easy. The removal of our old tanks and installation of new ones went just as planned. Rick R and Nate arrived right on time and greeted us with a smile. After checking all of our gas operated appliances to be sure they worked properly, we sat down and talked with Rick about safety. While we’ve had propane for a number of years we weren’t aware of several things that he told us about. We just purchased a gas detector, something we hadn’t heard of before. It’s a great feeling to know that we made the right choice switching to Palmer and look forward to a long and pleasant relationship with the company."

Karen R on March 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.

"We recently switched our provider of propane to Palmer Gas & Oil and have been extremely happy with the process. Both Michelle and Kim were great on the phone, setting up our account, determining our needs, scheduling our installation and answering our questions. During our site survey it was clear that Michelle was quite experienced and made the next steps easy. The removal of our old tanks and installation of new ones went just as planned. Rick R and Nate arrived right on time and greeted us with a smile. After checking all of our gas operated appliances to be sure they worked properly, we sat down and talked with Rick about safety. While we’ve had propane for a number of years we weren’t aware of several things that he told us about. We just purchased a gas detector, something we hadn’t heard of before. It’s a great feeling to know that we made the right choice switching to Palmer and look forward to a long and pleasant relationship with the company."

Karen R on March 2025


RM Remodel and Repair
123 Old Post Rd
4.50(
16
)
Approved Pro
RM Remodel and Repair
123 Old Post Rd
4.50(
16
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
248 local quotes requested

RM Contracting provides customers with quality products and services with a wide variety of ideas to save on money and products and services to each job at hand .

"Always goes well. Rich takes it upon himself to do the right thing(s)."

Mike . on September 2023

RM Contracting provides customers with quality products and services with a wide variety of ideas to save on money and products and services to each job at hand .

"Always goes well. Rich takes it upon himself to do the right thing(s)."

Mike . on September 2023

...
Showing 1-10 of 375

Geothermal heating or cooling system installations FAQs

Homeowners should consider several factors before investing in a geothermal system. If the upfront costs are in your budget and you plan to stay in your home long-term, you’ll likely get a better return on investment. New home construction is also ideal for geothermal heat pumps because these installations often cost less than retrofitting.

The total time it takes to recoup your costs depends on your upfront investment, energy savings, local climate, utility rates, and other factors. Most heat pumps pay for themselves within 10 years, but it can take up to 15 years.

Geothermal installation takes one to six weeks, depending on the system type, site conditions, and installation complexity. This process includes excavation or drilling, connecting piping, and configuring the system, so your contractor may leave heavy machinery and other equipment on site until it’s no longer needed. Assessments for your system may occur several months before the installation.

The homeowners guide to geothermal heating or cooling system installations
From average costs to expert advice, get all the answers you need to get your job done.
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