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Central a/c installers in Seabrook

Cool Air
28 Tempo Drive
New on HomeAdvisorNew on Angi
Approved Pro
Cool Air
28 Tempo Drive
New on AngiNew 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 Heritage Home Service
Heritage Home Service
179 Lafayette Road
4.54(
982
)
Approved Pro
Heritage Home Service
179 Lafayette Road
4.54(
982
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
70 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.

"Tom was great walked me through the whole process of what needed doing. Everyone was professional and easy going. My project was completed in the time stated abd they went the extra mile to ensure the job was to my satisfaction."

Norman S on August 2020

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.

"Tom was great walked me through the whole process of what needed doing. Everyone was professional and easy going. My project was completed in the time stated abd they went the extra mile to ensure the job was to my satisfaction."

Norman S on August 2020


Avatar for Daigle Plumbing, Heating & Cooling
Daigle Plumbing, Heating & Cooling
11 Windham Rd
4.23(
22
)
Approved Pro
Daigle Plumbing, Heating & Cooling
11 Windham Rd
4.23(
22
)
Approved Pro
Customers say: Quality work
36 local quotes requested
44 years of experience

Daigle Plumbing, Heating & Cooling is family-owned and operated by the Daigle family. We are proud to provide quality, dependable plumbing, heating, and cooling services in Derry for our customers in the surrounding areas. Our crew is full of expert technicians who are ready to help you get your system up and running!

"Did a great job and finished on time. Great customer service. Would recommend."

Daniel F on December 2023

Daigle Plumbing, Heating & Cooling is family-owned and operated by the Daigle family. We are proud to provide quality, dependable plumbing, heating, and cooling services in Derry for our customers in the surrounding areas. Our crew is full of expert technicians who are ready to help you get your system up and running!

"Did a great job and finished on time. Great customer service. Would recommend."

Daniel F on December 2023


Avatar for Moulton Mechanical Services
Moulton Mechanical Services
4 Ledgewood Lane
4.94(
117
)
Approved Pro
Moulton Mechanical Services
4 Ledgewood Lane
4.94(
117
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
14 local quotes requested

With 20 years experience, we're dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your fuel gas fitting projects. We work extremely hard, so give us a call for a free quote on your next project.

"he did"

tom C on March 2025

With 20 years experience, we're dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your fuel gas fitting projects. We work extremely hard, so give us a call for a free quote on your next project.

"he did"

tom C on March 2025


Avatar for Paul The Plumber, LLC
Paul The Plumber, LLC
111 Franklin Street Extension
4.30(
15
)
Approved Pro
Paul The Plumber, LLC
111 Franklin Street Extension
4.30(
15
)
Approved Pro
Customers say: True professional
22 local quotes requested
23 years of experience

Do you live in an older home in need of some maintenance or remodeling? Maybe you’re eyeing a dream home but want to make sure that it isn’t hiding any outdated plumbing or HVAC issues. Paul The Plumber is here to help you with all of your plumbing, heating, and air conditioning needs! From repairs to replacements to proactive maintenance, we'll always provide honest, expert recommendations and personalized solutions. Our goal is to ensure your safety and comfort no matter the season. Every contractor on our team is trained, experienced, and puts quality customer service at a priority. We’re here for you when you need us the most—whether you’re looking to lower your heating bills, save on your water use, get cleaner water, or improve your home’s indoor air quality.

"There is not a category for this project.. a shower head cartridge replacement. The cost on the flat rate for Paul the Plumber $969. This flat rate price is way above anyone else who would perform this job. There were no complications involved but the cartridge had to be picked up from another truck. I have learned from other plumbers with a good reputation that the cost should be around $400 without complications which mine was. "

Alice G on January 2025

Do you live in an older home in need of some maintenance or remodeling? Maybe you’re eyeing a dream home but want to make sure that it isn’t hiding any outdated plumbing or HVAC issues. Paul The Plumber is here to help you with all of your plumbing, heating, and air conditioning needs! From repairs to replacements to proactive maintenance, we'll always provide honest, expert recommendations and personalized solutions. Our goal is to ensure your safety and comfort no matter the season. Every contractor on our team is trained, experienced, and puts quality customer service at a priority. We’re here for you when you need us the most—whether you’re looking to lower your heating bills, save on your water use, get cleaner water, or improve your home’s indoor air quality.

"There is not a category for this project.. a shower head cartridge replacement. The cost on the flat rate for Paul the Plumber $969. This flat rate price is way above anyone else who would perform this job. There were no complications involved but the cartridge had to be picked up from another truck. I have learned from other plumbers with a good reputation that the cost should be around $400 without complications which mine was. "

Alice G on January 2025


Avatar for Olson Heating & Cooling
Olson Heating & Cooling
65 Causeway Street
5.00(
3
)
Approved Pro
Olson Heating & Cooling
65 Causeway Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Our mission at Olson Heating & Cooling is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Company Name stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"Very professional and honest service. Takes time to explain performance of unit, necessary maintenance and future maintenance. A pleasure to work with."

Scott G on August 2020

Our mission at Olson Heating & Cooling is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Company Name stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"Very professional and honest service. Takes time to explain performance of unit, necessary maintenance and future maintenance. A pleasure to work with."

Scott G on August 2020


Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
41 Birch St
4.47(
29
)
Approved Pro
Derry Plumbing & Heating
41 Birch St
4.47(
29
)
Approved Pro
Customers say: Quality work
50 local quotes requested
36 years of experience

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"torn between 2 &4 stars but went with 2 only because I feel the cost exceeded in my opinion a reasonable cost to replace with a basic 40-gallon electric hot water heater based on the cost I paid two months ago to have a new eclectic 70-gallon high efficiency heat pump water heater and expansion tank installed. We had no time to shop around.... 4 stars for the prompt repair and 2 stars on the pricing."

Mike b on February 2025

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"torn between 2 &4 stars but went with 2 only because I feel the cost exceeded in my opinion a reasonable cost to replace with a basic 40-gallon electric hot water heater based on the cost I paid two months ago to have a new eclectic 70-gallon high efficiency heat pump water heater and expansion tank installed. We had no time to shop around.... 4 stars for the prompt repair and 2 stars on the pricing."

Mike b on February 2025


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
248 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 Merrimack Valley Plumbing & Home Services
Merrimack Valley Plumbing & Home Services
142 Primrose St.
3.00(
3
)
Approved Pro
Merrimack Valley Plumbing & Home Services
142 Primrose St.
3.00(
3
)
Approved Pro
2573 local quotes requested
8 years of experience

Merrimack Valley Plumbing, LLC is a locally-owned and operated company committed to providing fast, affordable, and high-quality Plumbing. We offer HVAC repair, installation, and replacement services. We specialize in heating controls and simplifying complicated plumbing and HVAC systems to make them user-friendly. We strive to find solutions that fit everyone’s comfort needs, from construction projects to air conditioner replacement.

"I hired Merrimack Valley Plumbing to install a boiler in my home, and my experience was overwhelmingly disappointing. While the boiler functions, the installation process and quality of work raised numerous red flags. I want to share my experience to help others make an informed decision when considering this company. Installation Issues Code Violations: The exhaust is less than 3 feet from the gas meter, and the holes drilled in the joists for intake and exhaust are less than 2 inches from the bottom, both of which do not meet code requirements. Improper Venting: Both the exhaust and intake vents are installed too close to the ground (not meeting the 12-inch clearance required for expected snowfall) and are too close to each other (less than the 12-inch separation required). Unsealed Penetration: The hole drilled in the siding was left unsealed, creating a potential entry point for rodents. Condensate Drain Issues: The installed condensate pump is leaking and wasn’t tested. Additionally, rather than a permanent drain installation, they daisy-chained it into a pump for a portable air conditioner. Wiring Errors: The zones for the primary bedroom and second floor were wired backward, causing overheating in both areas. Missing Outdoor Sensor: The outdoor temperature sensor, critical for proper operation, was not installed. No CO Alarm: A carbon monoxide alarm was not installed, which is essential for safety. Unprofessional Workmanship: Trash, including a metal duct pipe, was left in the crawl space near live electrical wires. Process Concerns Permit Delays: The company failed to file permits before starting work. I only discovered this after contacting the town permitting office myself. Mismanagement and Delays: The project stretched far beyond the promised timeline, with repeated excuses about missing parts and limited crew availability, despite prior assurances that the job would be completed in two days. Broken Promises: They claimed a project manager would take measurements in advance to ensure a smooth installation, but no one came. Additionally, they rescheduled initially, promising a larger crew, only to send a single plumber on the first day. Misinformation and Deception Throughout the project, I encountered multiple instances where Merrimack Valley Plumbing provided misleading or false information: - They lied about the dates permits were filed. - They claimed delivery issues caused delays, though they should have anticipated these based on the advance photos provided. - They repeatedly shifted blame rather than taking accountability for the delays and issues. Overall Experience While the boiler itself works, the installation was riddled with code violations, safety oversights, and poor workmanship. Additionally, the company’s lack of transparency and repeated dishonesty made an already frustrating situation worse. I would not recommend Merrimack Valley Plumbing to others. Their lack of professionalism, disregard for safety codes, and failure to take responsibility for their mistakes created an unnecessarily stressful and costly experience."

Paul S on March 2025

Merrimack Valley Plumbing, LLC is a locally-owned and operated company committed to providing fast, affordable, and high-quality Plumbing. We offer HVAC repair, installation, and replacement services. We specialize in heating controls and simplifying complicated plumbing and HVAC systems to make them user-friendly. We strive to find solutions that fit everyone’s comfort needs, from construction projects to air conditioner replacement.

"I hired Merrimack Valley Plumbing to install a boiler in my home, and my experience was overwhelmingly disappointing. While the boiler functions, the installation process and quality of work raised numerous red flags. I want to share my experience to help others make an informed decision when considering this company. Installation Issues Code Violations: The exhaust is less than 3 feet from the gas meter, and the holes drilled in the joists for intake and exhaust are less than 2 inches from the bottom, both of which do not meet code requirements. Improper Venting: Both the exhaust and intake vents are installed too close to the ground (not meeting the 12-inch clearance required for expected snowfall) and are too close to each other (less than the 12-inch separation required). Unsealed Penetration: The hole drilled in the siding was left unsealed, creating a potential entry point for rodents. Condensate Drain Issues: The installed condensate pump is leaking and wasn’t tested. Additionally, rather than a permanent drain installation, they daisy-chained it into a pump for a portable air conditioner. Wiring Errors: The zones for the primary bedroom and second floor were wired backward, causing overheating in both areas. Missing Outdoor Sensor: The outdoor temperature sensor, critical for proper operation, was not installed. No CO Alarm: A carbon monoxide alarm was not installed, which is essential for safety. Unprofessional Workmanship: Trash, including a metal duct pipe, was left in the crawl space near live electrical wires. Process Concerns Permit Delays: The company failed to file permits before starting work. I only discovered this after contacting the town permitting office myself. Mismanagement and Delays: The project stretched far beyond the promised timeline, with repeated excuses about missing parts and limited crew availability, despite prior assurances that the job would be completed in two days. Broken Promises: They claimed a project manager would take measurements in advance to ensure a smooth installation, but no one came. Additionally, they rescheduled initially, promising a larger crew, only to send a single plumber on the first day. Misinformation and Deception Throughout the project, I encountered multiple instances where Merrimack Valley Plumbing provided misleading or false information: - They lied about the dates permits were filed. - They claimed delivery issues caused delays, though they should have anticipated these based on the advance photos provided. - They repeatedly shifted blame rather than taking accountability for the delays and issues. Overall Experience While the boiler itself works, the installation was riddled with code violations, safety oversights, and poor workmanship. Additionally, the company’s lack of transparency and repeated dishonesty made an already frustrating situation worse. I would not recommend Merrimack Valley Plumbing to others. Their lack of professionalism, disregard for safety codes, and failure to take responsibility for their mistakes created an unnecessarily stressful and costly experience."

Paul S on March 2025


Avatar for Granite State Refrigeration Services LLC
Granite State Refrigeration Services LLC
35 Manchester Road
5.00(
8
)
Approved Pro
Granite State Refrigeration Services LLC
35 Manchester Road
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
845 local quotes requested

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!

"Had an issue with my a/c unit leaking water and I called granite state refrigeration they had this nice polite guy named Keenan come out and he fixed it in no time!!! Amazing thank you !"

Avalon P on May 2024

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!

"Had an issue with my a/c unit leaking water and I called granite state refrigeration they had this nice polite guy named Keenan come out and he fixed it in no time!!! Amazing thank you !"

Avalon P on May 2024

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Central a/c installations FAQs

If you’re replacing an old AC system with a new unit, you can usually clean and repair the old ductwork without having to conduct a full replacement. Cleaning HVAC ducts typically costs around $400, while repairs range from $200 to $1,000. In contrast, installing new ductwork can range from $1,000 to $5,000, making it far more costly than cleaning or fixing existing ducts. HVAC installation costs an average of $7,000 to replace a full system, so staying on top of maintenance and repairs is important.

AC cost efficiency depends on the size of your space and your long-term plans for your home. If you only need to cool a small area, a portable AC unit has a low upfront cost. Heat pumps are typically the most cost-effective option if you want to cool an entire home or improve the resale value. They provide strong cooling while being energy-efficient, which saves you money on your utility bills compared to most other AC types.

Installing a central AC unit typically takes four to eight hours if your home already has ductwork in place. However, if new ductwork needs to be installed, this can add another one to two days of labor to your project.

The homeowners guide to central a/c installations
From average costs to expert advice, get all the answers you need to get your job done.
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