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Top-Rated Central a/c installers in South Lancaster - Updated Nov 2026

Avatar for Heritage Home Service
Heritage Home Service
4.6(
22
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved (Corporate)

In business since 2018

Free estimates

Emergency services offered

"We hired Loudon Mechanical to install Daikin mini-splits in our home. The quote was reasonable. Each person in their crew was courteous, prompt, and efficient. They completed our job in two days and left the job site clean. W are extremely pleased with Loudon Mechanical and would highly recommend this company."
Garbage disposal
Bathroom plumbing
Water heater
Water Filtration
Plumbing maintenance

+19

Response time9 hrs
Recommended by84%of homeowners
Avatar for Advanced Energy Concepts of Worcester, Inc.
Advanced Energy Concepts of Worcester, Inc.
3.8(
140
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome."
Response time3 days
Response rate85%
33 neighbors recently requested a quote
Avatar for Domination Plumbing and Heating
Domination Plumbing and Heating
4.6(
23
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"After spending 2 days trying to find someone to replace my hot water heater, Home Advisor recommended this company. They fit me into their schedule the same day and it was installed about 4 hours after my initially contact with them. Casey and Phil were great. Had them look at a couple of other minor future projects to do while they were here. Will definitely hire them again."
Custom Work
Custom Work
Custom Work
Custom Work
Custom Work

+20

Response time4 hrs
Response rate96%
13 neighbors recently requested a quote
Avatar for VVS HVAC & Home Improvement Services LLC
VVS HVAC & Home Improvement Services LLC
5.0(
5
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of HVAC services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n

Boiler
Furnace installation
Furnace installation
Furnace installation
Furnace installation

+11

3 neighbors recently requested a quote
Avatar for Accurate Heat-Air Services, Inc
Accurate Heat-Air Services, Inc
4.1(
12
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I typically get several estimates before any major expense. I do this to gather information as well as compare price and the people behind the websites. Two other companies were recommended to me by friends. Accurate was my third estimate. My previous furnace was installed by Accurate and serviced by Accurate so I was going to check with them before buying a new furnace. Accurate even showed up first thing one winter morning when the furnace didn't turn on. 



Each estimate said something a little different about which furnace to buy and how it should be installed. Derek from Accurate showed up on time and appeared to know the product and the installation requirements - including the expectations of the local building inspector. The building inspector has to approve the installation when it is finished. I honestly don't know if I chose the right furnace by purchasing a TRANE. I didn't want the most expensive model and I wasn't pressured to buy it. I did buy the pricey air  filter since a family member has allergies. 



The installation process went very smoothly. The man who spent all day doing the installation was low-key, friendly, and appeared to be doing a careful job. E.g., he didn't talk on his cell or blare a radio. Accurate arranged for the plumber to do the gas line hook up and the electrician to connect the new furnace and install a CO2 alarm. The plumber returned at a later date to show the finished job to the building inspector.



 It took a lot of time to learn about the new high efficiency furnaces, talk to friends about how they managed home heating issues, and then meet with contractors. Since it's such an expensive and long-term purchase, it's a tough decision. I decided to stay with Accurate based on past experience and I think it was the right call.
"
Hydronic Air Handler
Hydronic Air Handler
Condenser Farm
Trane Furnace
Trane Furnace

+2

2 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Modern Energy
Modern Energy
4.6(
11
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Excellent installation. Good workmanship organized and professional Andrew and Kyle explained everything well and are easy to communicate with. Plumber and Electrician also did a great job. Very satisfied with this company."
Fujitsu System in Paxton
Mitsubishi Multi-Zone Heat Pump System
Fujitsu System in Paxton
Mitsubishi Multi-Zone Heat Pump System
Fujitsu System in Paxton

+4

Response time3 days
Response rate100%
42 neighbors recently requested a quote
Avatar for A & L Plumbing, Heating and Cooling, Inc.
A & L Plumbing, Heating and Cooling, Inc.
4.0(
14
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 1998

Free estimates

Credit card accepted

"They were awesome, professional and very polite. Mateus and Lucas both did excellent work and answered any questions we had. Would recommend them to anyone who needs work done!"
Boiler1
Boiler2
Boiler3
Boiler4
Boiler5

+4

1 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for CRM Green Energy Consulting LLC
CRM Green Energy Consulting LLC
5.0(
2
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"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!"
Response time1 day
4 neighbors recently requested a quote
Ed's HVAC Corp
5.0(
1
)
Central A/C - Install

Serving South Lancaster, MA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

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 the start to the 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.

Response time4 days
Recommended by100%of homeowners
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Showing 1-10 of 128

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