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TRUSTED BY MENDON, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon237
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Mendon

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,397
)

Serving Mendon, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"The overall Sila team was great from the debugging of the issue, explaining the options and replacing the HVAC unit. There were multiple sila techs that helped out which we’re all great and Guy spent time explaining the new unit after it was installed and we learned a lot about our new unit."
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+6

Response time2 days
64 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for NV Heating and Air Conditioning
NV Heating and Air Conditioning
4.7(
234
)

Serving Mendon, MA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Great company to work with. They're very thorough on what needs to be done to fix a problem and are very professional. So far they've done two repairs to my heating system and were always pleasant and willing to help. Keith and Ron are great guys and I'll be calling them for my HVAC needs."
New 275 gallon oil tank
Williamson oil fired warm air furnace
Fujitsu wall mounted unit
Bosch HVAC system
Fujitsu ceiling cassette

+6

Response time2 days
13 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
165
)

Serving Mendon, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1948

Free estimates

Emergency services offered

"On time, neat, effective. Technicians were professional, personable and flexible. I gave a "B" on cost because I may have done better if I shopped around but having the company that was installing the HVAC install the electrical as well was a good convenience and one-stop shopping."
Navien Install
Backflow
Outdoor Shower
Well Tank Replacement
Filtration Installation

+62

Response time10 hrs
71 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Cassana HVAC LLC
Cassana HVAC LLC
4.8(
17
)

Serving Mendon, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"I have nothing but good things to say about Philip Mills, his crew, and his company, Cassana HVAC. I wanted to install heat-pumps for central heat and air in my large home, and I solicited a few bids. Philip responded promptly to my request to visit my home and provide a detailed estimate. His price was quite competitive, the work started on time, and he and his crew did an excellent job. Indeed, I am so impressed with Cassana HVAC that I am now using them to work on other systems in my home. I highly recommend Philip Mills."
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+9

Response time3 days
7 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for G&C PLUMBING AND HEATING LLC
G&C PLUMBING AND HEATING LLC
5.0(
54
)

Serving Mendon, MA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I had the pleasure of having G&C come to my home to repair a leak within my kitchen cabinet. Not only did the technicians arrive promptly, but they walked me through the repair process step by step, working in a clean and diligent manor. I highly recommend G&C for all of your plumbing and HVAC needs!"
A/C Installation
LG Heat Pump
A/C Installation
AC Installation
AC Installation

+6

Response time4 hrs
Response rate97%
4 neighbors recently requested a quote
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
521
)

Serving Mendon, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"June 3, 2016- Rodenhiser Plumbing HVAC cost to diagnose and charge home central air conditioner $593.25 Rodenhiser personnel were prompt and professional. Based upon your reported figures, $593.25 seems high. Work done efficiently and effectively."
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51 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)

Serving Mendon, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"My electrician from Cotti-Johnson HVAC was a master electrician. If you get him, you are getting the best. I went with the most expensive work package of the 3 that were presented. First off, it was pricey. I knew that going in. I want Cotti-Johnson to understand that I am serious about a working relationship with them. I feel I have done that with their electrical department. Now, if I need their plumbing or HVAC service, our relationship can build off the first experience."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
107 neighbors recently requested a quote
Avatar for SumZero Energy Systems, LLC
SumZero Energy Systems, LLC
4.4(
23
)

Serving Mendon, MA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Daniel Oliveira & Dan from SumZero Energy Systems arrived promptly, were knowledgeable and courteous. Upon explaining the issue with my AC fan, they immediately understood the problem and addressed it. They exceeded my expectations, explaining what went wrong and how to avoid this issue in the future. Even the initial telephone contact, setting up the appointment, communication, and addressing our specific needs were excellent. I highly recommend SumZero Energy Systems for all your HVAC needs."
Mitsubishi Heat Pump
MITSUbishi Hyper Heat Heat Pump
Wall Unit (GL Model)
'One-Way' Ceiling Cassette
'Floor Mount' Unit

+9

Response time2 days
Response rate85%
60 neighbors recently requested a quote
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Showing 1-10 of 339
Heating and Air Conditioning questions, answered by experts

There are a few reasons your AC is running but not cooling your room. Thermostat issues and dust and debris, which can clog your system, are common problems. It could also be a broken component, such as a compressor, blower fan, or evaporator coils. You’ll need to call a pro to diagnose the issue.

Yes, but they don’t feel the same as an AC-cooled room. You’ll feel cool, moist air, opposite from an HVAC system that dries the air as it cools. Ventless units also have less tonnage than alternatives like ductless and central air, which means they aren’t as capable of quickly cooling large spaces or circulating cold air.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

When deciding whether to repair or replace your air conditioner, several factors should be considered. It is generally worth repairing the unit if it's less than 10 years old, the warranty is still active, and you're dealing with a one-off issue. Most central AC units last about 15 years, while window units last 8 to 10 years. If your unit is approaching or has surpassed the 10-year mark and requires frequent or costly repairs (e.g., over $5,000), replacement is often the more sensible long-term investment. For older, inefficient, or out-of-warranty units experiencing multiple problems, replacing it is typically the better choice.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

The Mendon, MA homeowners’ guide to heating and air conditioning services

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