Get matched with top heating and air conditioning pros in Waterloo, NY

Waterloo homeowners rate heating and air conditioning pros in our network

4.3

(67 reviews)

Top-rated heating and air conditioning pros.

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

*The Angi rating for Heating And Air Conditioning Service companies in Waterloo, 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 Waterloo, 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 September 20, 2025

Find Heating and air conditioning pros in Waterloo

Avatar for T-Mark Plumbing, Heating, Cooling & Electric
T-Mark Plumbing, Heating, Cooling & Electric
4.5(
643
)

Serving Waterloo, 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
3 neighbors recently requested a quote
Recommended by90%of homeowners
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MQ Heating & Air Conditioning
4.6(
18
)

Serving Waterloo, 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 Lake Country Geothermal, Inc.
Lake Country Geothermal, Inc.
4.5(
2
)

Serving Waterloo, 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
1 neighbors recently requested a quote
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Avatar for Sure Temp Heating A/C & Refrigeration
Sure Temp Heating A/C & Refrigeration
4.7(
23
)

Serving Waterloo, NY and surrounding areas

In business since 1977

Emergency services offered

Credit card accepted

"From the first contact and quote to the final bill and cleanup we were very very happy with SureTemp. Professional, responsible, reliable all the way. First rate.
"
Recommended by100%of homeowners
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Astar Heating & Air Conditioning Inc
4.8(
138
)

Serving Waterloo, NY and surrounding areas

In business since 1976

Free estimates

Emergency services offered

"I had an Absolutely Fantastic Experience!! My husband & I were so lucky to have gotten Jason Scharf to come out to our home, he was very insightful, helpful, courteous and very professional. Jason explained step-by-step what he was doing along the way & what would work best within our home with 4 different price ranges that would work for us. Jason was very informative. He mentioned and advised me on some items that would require attention on a monthly basis which I was grateful for. Upon completion, he reviewed the bill and explained any questions that I had. I was very pleased. Overall, Jason’s work was outstanding. I would recommend Jason from Astar to anyone I know that is in need of a central air system in their home. He was one of the kindest, funny and coolest Design Specialists by far. Thanks again Jason you're the Best! We can't wait for everything to be completed."
Red Carpet Treatment
Furnace
AC
Recommended by98%of homeowners
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Avatar for Royal Plumbing & Heating Services
Royal Plumbing & Heating Services
4.7(
174
)

Serving Waterloo, NY and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"This company was extremely responsive to my initial request and got back to me within minutes. My water heater was replaced on time and with no problems whatsoever. They traveled A significant distance to get to my town And kept good communication with me"
Water Heater Install
Water Heater Install
Water Heater Replacement
Water Heater Replacement
Water Heater Install

+23

Response time8 hrs
Recommended by94%of homeowners
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FAQs for heating and air conditioning service projects in Waterloo, NY

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The Waterloo, 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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