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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon177
    Verified hvac repair services reviews

Find Hvac repair pros in Mendon

Avatar for Nicholson Plumbing Heating & Air Conditioning Inc

Nicholson Plumbing Heating & Air Conditioning Inc

71 Whitney Street
4.54(
560
)
Approved Pro

Nicholson Plumbing Heating & Air Conditioning Inc

71 Whitney Street
4.54(
560
)
Approved Pro
Customers say: Super punctual
56 local quotes requested
25 years of experience

Nicholson Plumbing, Heating & Air Conditioning is the company of choice for all your plumbing, heating and air conditioning repair and replacement needs. Our commitment is to you, our customer, and to provide you with outstanding plumbing and HVAC service. You can rest assured with our 100% satisfaction guarantee, 24-hour emergency service, solid warranty and highly trained technicians. Serving the Metro West, MA's service and installation needs. Fully Licensed in MA Plumbing and Gas Fitting. Lic# 30207. Universal EPA Certified & 410A Certified. Fully Insured. Nicholson Plumbing, Heating & Air Conditioning offers a 5% senior discount on service repairs.

"Went very well and got more information than with other companies."

Susan H on April 2025

Nicholson Plumbing, Heating & Air Conditioning is the company of choice for all your plumbing, heating and air conditioning repair and replacement needs. Our commitment is to you, our customer, and to provide you with outstanding plumbing and HVAC service. You can rest assured with our 100% satisfaction guarantee, 24-hour emergency service, solid warranty and highly trained technicians. Serving the Metro West, MA's service and installation needs. Fully Licensed in MA Plumbing and Gas Fitting. Lic# 30207. Universal EPA Certified & 410A Certified. Fully Insured. Nicholson Plumbing, Heating & Air Conditioning offers a 5% senior discount on service repairs.

"Went very well and got more information than with other companies."

Susan H on April 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
583 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 Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

12 Manison St
4.54(
5,209
)
Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

12 Manison St
4.54(
5,209
)
Approved Pro
Customers say: Super punctual
652 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Charged $2,000 (that's right, $2,000!) to install a new sprayer faucet and soap dispenser in Boston. $1,500 went to labor, which took less than 2 hours. I'm sorry, but $750/hr is outrageous. I did pay it because I wanted to expedite solving the problem for the tenants, but I now regret as their dishwasher is not working and I suspect the plumber failed to reconnect everything probably."

Joel R on August 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Charged $2,000 (that's right, $2,000!) to install a new sprayer faucet and soap dispenser in Boston. $1,500 went to labor, which took less than 2 hours. I'm sorry, but $750/hr is outrageous. I did pay it because I wanted to expedite solving the problem for the tenants, but I now regret as their dishwasher is not working and I suspect the plumber failed to reconnect everything probably."

Joel R on August 2025


"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 David M. Clay Plumbing& Heating

David M. Clay Plumbing& Heating

29 Hyland Avenue
5.00(
18
)
Approved Pro

David M. Clay Plumbing& Heating

29 Hyland Avenue
5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
72 local quotes requested

Clay Plumbing & Heating a locally owned and operated family business, has established itself as a reliable and leading provider of plumbing and heating services for the Central Massachusetts area since 2007 with over 20 years of experience. Our team provides a full range of plumbing services including boiler and water heater installation and repair. Every member of our team is fully trained to quickly and accurately diagnose any plumbing work that needs to be done. That way, when you have a situation that requires a professional plumber, you’ll feel confident in calling the Clay Plumbing & Heating team for help. Give us a call or click to request a quote today! We are just around the corner to help you with any problem! We also offer up to 100% financing up to $65,000.

"Very pleased with his service. He was competent and capable."

Jum B on September 2025

Clay Plumbing & Heating a locally owned and operated family business, has established itself as a reliable and leading provider of plumbing and heating services for the Central Massachusetts area since 2007 with over 20 years of experience. Our team provides a full range of plumbing services including boiler and water heater installation and repair. Every member of our team is fully trained to quickly and accurately diagnose any plumbing work that needs to be done. That way, when you have a situation that requires a professional plumber, you’ll feel confident in calling the Clay Plumbing & Heating team for help. Give us a call or click to request a quote today! We are just around the corner to help you with any problem! We also offer up to 100% financing up to $65,000.

"Very pleased with his service. He was competent and capable."

Jum B on September 2025


Avatar for Cassana HVAC LLC

Cassana HVAC LLC

2037 Maple Springs Street
4.76(
17
)
Approved Pro

Cassana HVAC LLC

2037 Maple Springs Street
4.76(
17
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
67 local quotes requested

Cassana is a family owned plumbing, heating, air conditioning and general contracting company. We do all phases of heating including gas, propane and oil and also all phases of cooling. Residential and commercial. Master pipefitter, master plumber, master refrigeration, also general contractor and master oil burner electrical. Subcontractors sometimes may be used but 90-95% of work is done by Cassana. Service fees are as follows: $80 fee for service call; trip charge only after 10 miles; 10% discount for mentioning Angie's list.

"The installation went very smoothly. They were courteous , neat and very knowledgeable."

Scott L on September 2025

Cassana is a family owned plumbing, heating, air conditioning and general contracting company. We do all phases of heating including gas, propane and oil and also all phases of cooling. Residential and commercial. Master pipefitter, master plumber, master refrigeration, also general contractor and master oil burner electrical. Subcontractors sometimes may be used but 90-95% of work is done by Cassana. Service fees are as follows: $80 fee for service call; trip charge only after 10 miles; 10% discount for mentioning Angie's list.

"The installation went very smoothly. They were courteous , neat and very knowledgeable."

Scott L on September 2025


Avatar for St Joseph Heating And Cooling

St Joseph Heating And Cooling

33 Flint Road
4.90(
5
)
Approved Pro

St Joseph Heating And Cooling

33 Flint Road
4.90(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

St Joseph Heating And Cooling 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.

"Very professional and very good work, super recommended!!"

Larissa L on April 2023

St Joseph Heating And Cooling 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.

"Very professional and very good work, super recommended!!"

Larissa L on April 2023


"He reattached the air condition hose to the vent but never came back with the part he said I needed and would not return my calls. He never finished the job. I hired someone else to complete his work. Beware."

Jim M on August 2022

TBD!

"He reattached the air condition hose to the vent but never came back with the part he said I needed and would not return my calls. He never finished the job. I hired someone else to complete his work. Beware."

Jim M on August 2022


Steven Sprott

789 Providence Road
4.90(
124
)
Approved Pro

Steven Sprott

789 Providence Road
4.90(
124
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
30 local quotes requested

We offer over 10 years of experience in the electrical industry. We take on most service and repair calls (no job too small). We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Steve did a great job identifying the issue and correcting the faulty wiring in place. He were happy with the results and timeliness of his work. We would hire Steve for any electrical work going forward. "

Ray S on July 2025

We offer over 10 years of experience in the electrical industry. We take on most service and repair calls (no job too small). We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Steve did a great job identifying the issue and correcting the faulty wiring in place. He were happy with the results and timeliness of his work. We would hire Steve for any electrical work going forward. "

Ray S on July 2025


Pisano's Odd Jobs and Appliances

18 Inman Hill Road
4.19(
32
)
Approved Pro

Pisano's Odd Jobs and Appliances

18 Inman Hill Road
4.19(
32
)
Approved Pro
Customers say: Quick response
31 local quotes requested
28 years of experience

At Pisano�s Odd Jobs and Appliances, 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 quality building, installation, repair and handyman services. You will find us to be competitively priced with close attention to the details of each and every project. We look forward to building long lasting relationships servicing your needs with guaranteed satisfaction.

"He can fix many things"

Carol B on April 2023

At Pisano�s Odd Jobs and Appliances, 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 quality building, installation, repair and handyman services. You will find us to be competitively priced with close attention to the details of each and every project. We look forward to building long lasting relationships servicing your needs with guaranteed satisfaction.

"He can fix many things"

Carol B on April 2023

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Hvac Repairs questions, answered by experts

The biggest thing to consider when replacing or repairing your HVAC system is age. If it’s beyond those 15 years, it’s only a matter of time before it kicks the bucket. If repairs total well over $5,000, simply going for a new unit might be worth it. Many vendors have long parts-replacement warranties, so ask your HVAC contractor to check into that. You could save hundreds on a repair if the part is free.

HVAC systems should be serviced annually, no matter which type of system you have. This service visit should include an inspection, cleaning, and regular maintenance tasks, like flushing the boiler. The best time to do this varies on the system. For heating-based systems, call in a technician sometime during the fall. For air conditioners, go for the spring. Basically, schedule the service call before you plan on amping up HVAC system usage for the season. 

Running your furnace fan can cool your house since it regulates the temperature by pushing hot and cold air through the vents. For example, let’s say your home faces east and gets hit with the morning sun. The rooms that it hits will be warmer than the others.

But as the day goes on and the sun shifts, the temperature in other rooms may start to change. By running your furnace fan continuously, you’ll be able to prevent hot and cold spots from popping up all over your house.

Also, it doesn’t matter if you have a one- or multi-story home. Since heat rises, individuals with larger homes will experience a warmer upstairs and cooler downstairs. But temperature regulation will help enhance your home’s comfort level. If you own a one-story house, you’ll still benefit from keeping your furnace fan on continuously since it will even out the temperature.

If you know how to identify supply and return ducts, you’ll find that only the supply ducts will have dampers. Although your return ducts can have dampers, it’s not common. If you have one return duct that is pulling in too much air, adding a damper to it can help with overall system performance. However, dampers on return ducts are not a necessary addition for most homes.

If you have a fresh air intake as part of your HVAC system, the interior vents should be near your furnace or other gas appliances inside your home. From the outside of your property, your HVAC fresh air intake location is usually near the ground (although it may also be higher up, like on the roof or attic).

The Mendon, MA homeowners’ guide to hvac repair services

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