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Find Air conditioning pros in Lunenburg

Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or ReplaceWindow A/C Unit - Service or Relocate+11 more

Serving Lunenburg, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I looked at a number of different options and they had the best pricing and they also specialize in just doing central air. So they were also sort of a plumber and gas fitter, anything like that, and so they really specialized in what I was looking for. So that is sort of their core business. They were good and they did a very nice, clean job. The house was built in 1901 and so they did a great job of removing the old radiators and radiant based heat systems and replacing it with a new central air set up."
Additional Photos
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+4

Response time2 days
3 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for Emerald HVAC LLC
Emerald HVAC LLC
5.0(
15
)
Central A/C - Service or Repair

Serving Lunenburg, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"They did an outstanding job during the worst heatwave we may have ever had in Boston"
Response time1 day
Response rate93%
34 neighbors recently requested a quote
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Avatar for Kilpatrick HVAC
Kilpatrick HVAC
4.9(
14
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Lunenburg, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The team at Kilpatrick HVAC was extremely friendly, professional, and courteous and above all, they had the best pricing. They showed up on time, did a great job. My new air conditioner is running so well. I would highly recommend Kilpatrick HVAC, to anyone needing professional installation."
3 neighbors recently requested a quote
Recommended by64%of homeowners
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Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Lunenburg, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"Everything went well. Rodenhiser handled all aspects including obtaining an interest-free 7-year loan, installation of heat pump/air handler, coordination with town inspections, and submission of rebate claim. I would recommend them highly for this type of project."
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45 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Wotton Heating
Wotton Heating
4.7(
29
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Lunenburg, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Excellent service! Highly recommend! Seasoned pro with years of hands on experience in this line of work and it shows! No question I will hire Wotton Heating for all my furnace work from now on. Does not try to sell you anything you don't need. Fair prices. Your in good hands when you hire Wooton Heating."
oil burner cleaning
Roth oil tank
Burnham Boiler /tankless
Biasi Boiler
Mitsubishi

+1

Response time1 day
13 neighbors recently requested a quote
Recommended by78%of homeowners
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Avatar for Milltown Plumbing, Heating, Cooling and Electrical - HVAC
Milltown Plumbing, Heating, Cooling and Electrical - HVAC
4.3(
424
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

Serving Lunenburg, MA and surrounding areas

Approved

In business since 1979

Warranties offered

Small jobs welcome

"First, it was refreshing to have someone come into my home that was both professional, courteous, and obviously enjoyed their work! Jay is awesome. I had him at my home in August for air-conditioning repair; then again in September for a furnace issue. Both were quickly diagnosed and Jay left with my system operating. I definitely would recommend Jay and MillTown."
The Milltown Team
Family Owned and Operated
We're Ready When You Need Us
Our Mission
Team Photos

+13

Response time9 hrs
Recommended by89%of homeowners
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Avatar for Milltown Plumbing, Heating, AC, Drain Cleaning & Electrical
Milltown Plumbing, Heating, AC, Drain Cleaning & Electrical
4.4(
200
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Lunenburg, MA and surrounding areas

Approved

In business since 1979

Credit card accepted

Customers say: Super punctual

"Great experience with Milltown. Their sales manager Jason came out twice to meet with me personally and tailor a proposal to my needs. I had some non-HVAC ancillary work needed (ice maker line) and they were happy to incorporate this. On the day of install, Derek and the onsite team were friendly, professional, and responsive to all of my questions. Price was competitive with two other bids I had solicited. I would highly recommend working with Milltown and would work with them personally again without hesitation."
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13 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for RPM Heating & Cooling LLC
RPM Heating & Cooling LLC
5.0(
4
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+12 more

Serving Lunenburg, MA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

RPM Heating & Cooling LLC Dracut, MA, 01826 (978) 957-2728 RPM Heating & Cooling LLC is a well-known, 5-star, family-run HVAC contractor in the Dracut, MA area. Reach our team today. Heating Contractor, Heating & Cooling, Home Heating Systems, Cooling System, Affordable Heating and Cooling https://rpmheatandcool.com/

Prompt Service!
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15 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Precision Plumbing & HVAC, LLC
Precision Plumbing & HVAC, LLC
5.0(
23
)
Central A/C - Service or Repair

Serving Lunenburg, MA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quick response

"Nice, professional, reliable guys ran gas line from outside to my kitchen and installed a new stove. Excellent service and clear communication. I will hire them again. My electrician was also impressed with them."
Response time2 hrs
Recommended by100%of homeowners
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Avatar for Advanced Energy Concepts of Worcester, Inc.
Advanced Energy Concepts of Worcester, Inc.
3.9(
138
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Lunenburg, 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%
31 neighbors recently requested a quote
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FAQs for air conditioning projects in Lunenburg, MA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Lunenburg, MA homeowners’ guide to air conditioning services

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

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