Top-rated central a/c installers.

Get matched with top central a/c installers in your area

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.

Central a/c installers in Londonderry

Hannon HVAC LLC
32B Dale Rd
5.00(
1
)
Approved Pro
Hannon HVAC LLC
32B Dale Rd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We take great pride our experience, expertise, quality and customer service that we provide to meet your 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"They were very professional, they did a high quality work and they did a great job."

Mike Y on March 2022

We take great pride our experience, expertise, quality and customer service that we provide to meet your 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"They were very professional, they did a high quality work and they did a great job."

Mike Y on March 2022


E Star HVAC
5 Gillis Street Apt #8
New on HomeAdvisorNew on Angi
Approved Pro
E Star HVAC
5 Gillis Street Apt #8
New on AngiNew on HomeAdvisor
Approved Pro
3 years of experience
Free onsite estimate

E Star HVAC LLC 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.

E Star HVAC LLC 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.


Prime Time Mechanical, LLC
PO Box 127
5.00(
2
)
Approved Pro
Prime Time Mechanical, LLC
PO Box 127
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

With over 6 years of experience Prime Time Mechanical, LLC is one of New Hampshire's premier HVAC contractors. We specialize in all types of installations and repairs from gas and oil furnaces, boilers, water heaters, and gas piping. Our staff takes pride in providing our customers with the highest quality of work and customer service. Give us a call today!

"null"

Lori S on October 2019

With over 6 years of experience Prime Time Mechanical, LLC is one of New Hampshire's premier HVAC contractors. We specialize in all types of installations and repairs from gas and oil furnaces, boilers, water heaters, and gas piping. Our staff takes pride in providing our customers with the highest quality of work and customer service. Give us a call today!

"null"

Lori S on October 2019


Avatar for CHAVIANO HVAC
CHAVIANO HVAC
487 Boston Post Rd
New on HomeAdvisorNew on Angi
Approved Pro
CHAVIANO HVAC
487 Boston Post Rd
New on AngiNew on HomeAdvisor
Approved Pro
3 years of experience
Free onsite estimate

With more than 15 yrs of experience, Chaviano HVAC 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!

With more than 15 yrs of experience, Chaviano HVAC 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!


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.


HOLLIS OIL HEAT SERVICE, LLC
12 Smith St
5.00(
1
)
Approved Pro
HOLLIS OIL HEAT SERVICE, LLC
12 Smith St
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I had problems with my boiler and no one else was able to solve it and he was able to solve it right away without any issues. He really took his time and was very thorough with the work."

Allison R on November 2021

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I had problems with my boiler and no one else was able to solve it and he was able to solve it right away without any issues. He really took his time and was very thorough with the work."

Allison R on November 2021


Avatar for Pure Temp Heating and Cooling, LLC
Pure Temp Heating and Cooling, LLC
3 Wilson St
5.00(
9
)
Approved Pro
Pure Temp Heating and Cooling, LLC
3 Wilson St
5.00(
9
)
Approved Pro
Customers say: Quick response
20 local quotes requested
2 years of experience

Pure Temp Heating and Cooling is Veteran Owned company dedicated to providing our customers with the best quality and craftsmanship. With over 12 years of experience in the industry ranging from residential, to commercial and light industrial, we are here to build relationships with our customers and communities and to provide our employees with a great place to work. 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.

"I highly recommend Jake and the team at Pure Temp Heating and Cooling."

Sean K on January 2025

Pure Temp Heating and Cooling is Veteran Owned company dedicated to providing our customers with the best quality and craftsmanship. With over 12 years of experience in the industry ranging from residential, to commercial and light industrial, we are here to build relationships with our customers and communities and to provide our employees with a great place to work. 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.

"I highly recommend Jake and the team at Pure Temp Heating and Cooling."

Sean K on January 2025


Avatar for Heritage Home Service
Heritage Home Service
28 Commercial Court
4.52(
960
)
Approved Pro
Heritage Home Service
28 Commercial Court
4.52(
960
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
175 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.

"I was happy with the service"

Sage C on January 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.

"I was happy with the service"

Sage C on January 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 Sanford Temperature Control
Sanford Temperature Control
96 Old Wilton Rd Unit 1
4.85(
10
)
Approved Pro
Sanford Temperature Control
96 Old Wilton Rd Unit 1
4.85(
10
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 local quotes requested

Sanford Temperature Control 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.

"Sanford Tempwrature Control provide excellent service and AC installation. The quote process was great with several options provided and thoroughly explained what would work most efficiently for my house. Removal and installation was top notch. They will be my first call for future work."

Michael S on August 2024

Sanford Temperature Control 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.

"Sanford Tempwrature Control provide excellent service and AC installation. The quote process was great with several options provided and thoroughly explained what would work most efficiently for my house. Removal and installation was top notch. They will be my first call for future work."

Michael S on August 2024

...
Showing 1-10 of 484

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.
Technician checking AC condenser
Apr 22, 2025
Apr 22, 2025
Budget for the cost to replace an AC condenser based on factors such as unit size, repair type, brand, accessibility, labor, and more.
swamp cooler being installed on roof of house
Apr 21, 2025
Apr 21, 2025
Learn how much a swamp cooler costs to install based on the type, project size, operating costs, removal and disposal fees, and add-ons.
swamp cooler on the exterior of a home
Apr 16, 2025
Apr 16, 2025
Budget for swamp cooler repair costs based on factors such as the type of repair, the type of unit, the parts, potential replacements, labor, and more.
An AC next to a brick wall
Apr 1, 2025
Apr 1, 2025
Budget for AC capacitor replacement costs based on factors such as the capacitor type, size, labor, potential repairs, location, season, and more.
window of home with a window unit air conditioner installed
Mar 31, 2025
Mar 31, 2025
Discover the cost of window AC installation, exploring factors like unit size, labor rates, outlet installation, accessories, and disposal fees.
Detail of a HVAC system outside a brick house
Mar 31, 2025
Mar 31, 2025
The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.
Share project details to get started.