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Find Window a/c unit installers in Lancaster

Terry's Home Improvement

607 Boylston Street
5.00(
20
)
•Approved Pro

Terry's Home Improvement

607 Boylston Street
5.00(
20
)
•Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 years of experience

Here at Terry's Home Improvement, we are dedicated to providing you with exceptional customer service. We specialize in providing you with all the different options available to you for your remodeling needs. We are a family owned and operated business, with over 40 years in the construction industry. So stop by today and set up your free no obligation estimate.

"I hired him through Angi, and was really happy with his job and knowledge. He has a lot of experience and know what he is doing. Will fully recommend him and hire him again if I need to do another job at my house."

Andres E on October 2022

Here at Terry's Home Improvement, we are dedicated to providing you with exceptional customer service. We specialize in providing you with all the different options available to you for your remodeling needs. We are a family owned and operated business, with over 40 years in the construction industry. So stop by today and set up your free no obligation estimate.

"I hired him through Angi, and was really happy with his job and knowledge. He has a lot of experience and know what he is doing. Will fully recommend him and hire him again if I need to do another job at my house."

Andres E on October 2022

Sidewinder Industries Handyman Services

177 Park Ave
5.00(
3
)
•Approved Pro

Sidewinder Industries Handyman Services

177 Park Ave
5.00(
3
)
•Approved Pro
48 local quotes requested
2025 years of experience

"Hi there! We’re Sidewinder Handyman Services, proudly serving homeowners since 2025. Whether it’s a small repair, a big upgrade, or something in between, we’re here to make your projects simple, stress-free, and affordable. Our goal is to take the hassle out of home maintenance so you can focus on enjoying your space. Let’s get your to-do list done! Reach out today for your FREE quote and see how easy it can be to love your home again."

"Very good and honest work!"

Logan B on October 2025

"Hi there! We’re Sidewinder Handyman Services, proudly serving homeowners since 2025. Whether it’s a small repair, a big upgrade, or something in between, we’re here to make your projects simple, stress-free, and affordable. Our goal is to take the hassle out of home maintenance so you can focus on enjoying your space. Let’s get your to-do list done! Reach out today for your FREE quote and see how easy it can be to love your home again."

"Very good and honest work!"

Logan B on October 2025

Avatar for Burlingame Remodeling Inc.

Burlingame Remodeling Inc.

104 New Boston Rd
5.00(
12
)
•Approved Pro

Burlingame Remodeling Inc.

104 New Boston Rd
5.00(
12
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
153 local quotes requested

This business is predicated on integrity, and that reflects in every aspect of the business; from your first contact with us through project completion. We strive to make the process of home improvement and repair painless and easy. It is our belief that when you win, we win. Allow your search for a reliable contractor to end here; contact us now! Check out our website! burlingameremodeling.com Check us out on Facebook and Instagram!

"Shane was great. Got everything done on our list and was fast and clean. Thanks!"

Aly A on December 2022

This business is predicated on integrity, and that reflects in every aspect of the business; from your first contact with us through project completion. We strive to make the process of home improvement and repair painless and easy. It is our belief that when you win, we win. Allow your search for a reliable contractor to end here; contact us now! Check out our website! burlingameremodeling.com Check us out on Facebook and Instagram!

"Shane was great. Got everything done on our list and was fast and clean. Thanks!"

Aly A on December 2022

Avatar for CRM Green Energy Consulting LLC

CRM Green Energy Consulting LLC

116 Boston Rd
5.00(
2
)
•Approved Pro

CRM Green Energy Consulting LLC

116 Boston Rd
5.00(
2
)
•Approved Pro
1 years of experience
Free onsite estimate

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.

"We were in the market to convert off oil and switch to a heat pump system. CRM Green Energy Consulting helped us every step of the way. They arrived on time and were very professional during the home assessment process. We agreed to the proposal and set up a time for installation the following week. Throughout the whole process CRM was communicating with us on progress. There was a placement issue for one of our mini-splits and one of CRM’s Carpentry team members came out and opened a wall and patched/painted like they were never there. Super friendly team members and very knowledgeable on green energy and home heating efficiency. At the end of the project they sat us down and taught us how to use the phone app for our GE mini split unit. They helped us fill out of MassSave rebate form as well! We couldn’t be happier with CRM Green Energy! We are so glad we chose them for our heat pump project!"

Jami N on March 2025

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.

"We were in the market to convert off oil and switch to a heat pump system. CRM Green Energy Consulting helped us every step of the way. They arrived on time and were very professional during the home assessment process. We agreed to the proposal and set up a time for installation the following week. Throughout the whole process CRM was communicating with us on progress. There was a placement issue for one of our mini-splits and one of CRM’s Carpentry team members came out and opened a wall and patched/painted like they were never there. Super friendly team members and very knowledgeable on green energy and home heating efficiency. At the end of the project they sat us down and taught us how to use the phone app for our GE mini split unit. They helped us fill out of MassSave rebate form as well! We couldn’t be happier with CRM Green Energy! We are so glad we chose them for our heat pump project!"

Jami N on March 2025

BWalsh

110 Edge Hill Rd
4.85(
34
)
•Approved Pro

BWalsh

110 Edge Hill Rd
4.85(
34
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
694 local quotes requested

Looking for top-notch plastering services in Boston? Look no further! Our skilled team offers all types of finishes, from smooth to textured. With a focus on quality work, we provide free estimates. Contact us today!

"You can rely on this man for all your home improvement needs; his quality is exceptional. He is reasonable as far as price."

Minnie K on April 2025

Looking for top-notch plastering services in Boston? Look no further! Our skilled team offers all types of finishes, from smooth to textured. With a focus on quality work, we provide free estimates. Contact us today!

"You can rely on this man for all your home improvement needs; his quality is exceptional. He is reasonable as far as price."

Minnie K on April 2025

Avatar for Mead Handyman Service, LLC

Mead Handyman Service, LLC

17 Mill Street Fl 2
5.00(
18
)
•Approved Pro

Mead Handyman Service, LLC

17 Mill Street Fl 2
5.00(
18
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
165 local quotes requested

Welcome to Mead Handyman Service, LLC. We've been serving the local area to provide quality work at an affordable rate. There is no job too big or too small. We cover all handyman services including, but not limited to, interior painting, exterior painting, laminate flooring, vinyl flooring, ceramic tile flooring, ceramic tile, drywall repair, drywall install, deck repairs, deck staining, power washing, lawn care, junk removal, and more!

"Superbly !"

Monika B on October 2025

Welcome to Mead Handyman Service, LLC. We've been serving the local area to provide quality work at an affordable rate. There is no job too big or too small. We cover all handyman services including, but not limited to, interior painting, exterior painting, laminate flooring, vinyl flooring, ceramic tile flooring, ceramic tile, drywall repair, drywall install, deck repairs, deck staining, power washing, lawn care, junk removal, and more!

"Superbly !"

Monika B on October 2025

Avatar for Modern Energy

Modern Energy

24 Rockdale Street
5.00(
3
)
•Approved Pro

Modern Energy

24 Rockdale Street
5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
908 local quotes requested

Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

Michael T on September 2025

Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

Michael T on September 2025

Avatar for Heritage Home Service

Heritage Home Service

109 Washington St
4.29(
21
)
•Approved Pro

Heritage Home Service

109 Washington St
4.29(
21
)
•Approved Pro
Customers say: Quality work
1211 local quotes requested
39 years of experience

Heritage Home Service is proud to serve residents from Massachusetts. We are the area’s premier home services provider and for 35+ years, we’ve brought the Heritage touch to homes throughout the state.

"I was told that the fee to simply come into my house to assess my furnace (that was not working) would be $260 on a Wednesday afternoon... and I was told this fee would not be absorbed into the work if I chose to have it done. If this company charges such an exorbitant assessment fee, I could only believe they would inflate other fees as well. I hired another local company for half that fee to assess then repair my furnace. Shame on Heritage Home Service."

Jeffrey D on December 2024

Heritage Home Service is proud to serve residents from Massachusetts. We are the area’s premier home services provider and for 35+ years, we’ve brought the Heritage touch to homes throughout the state.

"I was told that the fee to simply come into my house to assess my furnace (that was not working) would be $260 on a Wednesday afternoon... and I was told this fee would not be absorbed into the work if I chose to have it done. If this company charges such an exorbitant assessment fee, I could only believe they would inflate other fees as well. I hired another local company for half that fee to assess then repair my furnace. Shame on Heritage Home Service."

Jeffrey D on December 2024

Avatar for Airco Home Comfort Services LLC

Airco Home Comfort Services LLC

15 Main St
4.70(
30
)
•Approved Pro

Airco Home Comfort Services LLC

15 Main St
4.70(
30
)
•Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1290 local quotes requested

Specializing in all HVAC/R services to include Geothermal Heating and Cooling. Ground Source Heat Pump services. Additional service area: Chelmsford-Haverhill, Boxford-Gloucester, Manchester-Nashua & Portions Of Downtown. No interest Financing available and all major credit cards accepted. Additional DBA - Airco Heating & Cooling. Additional email - info@aircohome.net. Master Sheet Metal License: 1325 and Master Plumber License: 11593

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."

David B on November 2018

Specializing in all HVAC/R services to include Geothermal Heating and Cooling. Ground Source Heat Pump services. Additional service area: Chelmsford-Haverhill, Boxford-Gloucester, Manchester-Nashua & Portions Of Downtown. No interest Financing available and all major credit cards accepted. Additional DBA - Airco Heating & Cooling. Additional email - info@aircohome.net. Master Sheet Metal License: 1325 and Master Plumber License: 11593

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."

David B on November 2018

Avatar for Rodenhiser Home Services

Rodenhiser Home Services

325 Hopping Brook Rd
4.39(
506
)
•Approved Pro

Rodenhiser Home Services

325 Hopping Brook Rd
4.39(
506
)
•Approved Pro
Customers say: Super punctual
2844 local quotes requested
97 years of experience

When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.

"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."

stephen m on August 2024

When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.

"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."

stephen m on August 2024

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FAQs for window a/c unit installation projects in Lancaster, MA

Window AC units can use a significant amount of energy. These units use about 12 to 17 kilowatt-hours per day, significantly more than a refrigerator's one to 1.5 kilowatt-hours per day. To keep your energy costs down, run your window AC only when necessary, keep doors closed to contain the cool air, regularly clean filters and coils, and seal any gaps around the unit to prevent cold air from escaping.

Inexpensive air conditioner units are often not worth it. Low-cost products from popular brands like General Electric, LG, Whirlpool, or Frigidaire may be a reasonable investment. However, putting a small, budget-friendly unit in a large room wastes energy and shortens the life span of the AC since it has to draw more power and work much harder to cool the space. The unit will consume more energy and stress the motor and other internal parts, resulting in early breakdown and costly repairs.

The best deals on window AC units come during the fall when businesses slash prices to clear out old inventory. You can also speak with your local AC installer, who may get you a good deal on a window AC unit since they have access to trade pricing. You can also watch for discontinued products and flash sales in your area.

Window AC repair costs between $110 and $390, with most people paying around $250. Parts cost between $2 and $150, with the rest going toward labor, at around $30 per hour. The occasional one-off repair or a routine AC tuneup cost $75 to $200. Servicing can keep your AC running in good condition for several more years before you need to pay for a replacement unit.

Window AC units last eight to 10 years when installed and maintained correctly. High-quality models last up to 20 years with proper care and routine maintenance. The unit’s longevity depends on its construction quality, regular cleaning, and electrical safety inspections. Keeping the filters and coils clean and addressing minor repairs promptly extends its effective performance and ensures reliable cooling.

The Lancaster, MA homeowners’ guide to window a/c unit installations

From average costs to expert advice, get all the answers you need to get your job done.

See all articles
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