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4.6

(118 reviews)

Top-rated heating and air conditioning pros.

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Verified Reviews for Heating And Air Conditioning Service pros in Middlesex, NY

*The Angi rating for Heating And Air Conditioning Service companies in Middlesex, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Middlesex, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on January 23, 2026

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John Betlem Heating & Cooling Inc - HVAC
4.7(
157
)

Serving Middlesex, NY and surrounding areas

Approved (Corporate)

In business since 1941

Free estimates

Emergency services offered

John Betlem Heating & Cooling is a 3rd generation company founded in 1941. They provide Residential HVAC, Electrical and Insulation Services to Rochester, NY and the surrounding towns. John?s slogan that still holds true today is to do ?whatever it takes? to satisfy customers.\n\nJohn Betlem is a premier family operated solutions provider, passionately committed to the health, safety, and comfort for all they serve.

49 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for New Horizons GC
New Horizons GC
4.8(
102
)

Serving Middlesex, NY and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Fantastic work! We now have our trusted HVAC professional. Matt made sure that he explained every element of our AC repair, and followed up after the work was done. He’s a true professional, and one we’re so thankful we chose. I’d recommend him to anyone!"
Tile in Progress
Finished
existing valve
existing piping
re piping

+12

Response time7 hrs
8 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for T-Mark Plumbing, Heating, Cooling & Electric
T-Mark Plumbing, Heating, Cooling & Electric
4.5(
643
)

Serving Middlesex, NY and surrounding areas

Approved

In business since 1992

Free estimates

Credit card accepted

T-Mark Plumbing, Heating, Cooling & Electric was founded over 25 years ago to provide friendly, efficient service to residents and businesses across Buffalo and Western New York. The largest family-owned and operated business in WNY that understands the challenge and frustrations that can occur with plumbing, HVAC, and electrical emergencies. Community voted the # 1 company in 716 and available 24 hours a day 7 days a week. Our day one focus has never changed: 100% customer satisfaction. We take the time, every time, to ensure our customers are left happy and satisfied with not only the quality of our work, but with the entire T-Mark experience.

Multi-Unit Install
12 neighbors recently requested a quote
Recommended by90%of homeowners
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MQ Heating & Air Conditioning
4.6(
18
)

Serving Middlesex, NY and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: Quick response

MQ Heating & Air Conditioning, professionals have over 25 years of experience making your home/office as comfortable as possible. Whether a heating or cooling issue, our company has the ability to get the job done. From A/C central air installs to heat pump replacements, MQ Heating & Air Conditioning, does it all! Our professionals are dependable, qualified and provide the highest level of customer service. PLEASE ASK US ABOUT OUR FINANCE PROGRAM. Call us today for a free quote!

3 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Frank N Frank Mechanical Contracting
Frank N Frank Mechanical Contracting
5.0(
5
)

Serving Middlesex, NY and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

Thank you for considering hiring us for your project! At Frank N Frank Mechanical Contracting we pride ourselves on quality work, integrity and competitive pricing. We believe in giving our absolute best, no matter how big or small your project.\n\nWe are experts in our trade, and we will keep you educated and informed throughout the completion of your project. We treat your property like it's our own, with the utmost respect, just like we would our own family!\n\nAs the owner, my aim is to earn a 5-star review on the completion of your project. So, please let me know if at any time we are not living up to earning your perfect 5-star review.\n\nWe look forward to earning your business, so please ask us for references!

2 neighbors recently requested a quote
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Avatar for Lake Country Geothermal, Inc.
Lake Country Geothermal, Inc.
4.5(
2
)

Serving Middlesex, NY and surrounding areas

Approved

In business since 2016

Free estimates

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. As well as Geothermal heating and cooling systems we are also able to service Hydronic heating systems. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

Install
Install
Install
Yard Sign
Install

+11

Response time5 hrs
2 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

If your whole house is cold that’s one thing, but what if you only have a few rooms that are cold? First, you need to determine why this may be happening. A good place to start is to investigate the potential causes listed in this article—heat transfer, airflow, thermostat problems, humidity, and insulation. Once you’ve narrowed down the issue, you’d apply the same principles to the cold rooms as you would to the entire home.

Yes, you can clean AC coils yourself. Just make sure that the power to your AC system is off before you begin. You’ll need some basic tools and supplies, including a soft brush, cloth, screwdriver, and a commercial or homemade cleaning solution. Cleaning your coils will only cost about $10.

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.

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.

The Middlesex, NY homeowners’ guide to heating and air conditioning services

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

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