Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 pros

TRUSTED BY WILLIAMSTOWN, NY HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon207
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Williamstown

Avatar for J&J's Construction & Remodeling

J&J's Construction & Remodeling

4.93(
15
)
•Approved Pro

J&J's Construction & Remodeling

4.93(
15
)
•Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
4 years of experience

I am well versed in all your construction needs. I have done commercial construction for ten years and specialize in framing, drywall, hanging, finishing, cabinets, plumbing, electrical, trim, flooring and all your remodeling projects. I take great pride in my work and I look forward to transforming your house into your dream home.

"Project was completed in a very professional and extremely competent manner on a timely basis with an eye toward detail. I would highly recommend J&J ‘s Remodeling to anyone needing to hire a professional for any remodeling and/or construction project."

CJ D on October 2025

I am well versed in all your construction needs. I have done commercial construction for ten years and specialize in framing, drywall, hanging, finishing, cabinets, plumbing, electrical, trim, flooring and all your remodeling projects. I take great pride in my work and I look forward to transforming your house into your dream home.

"Project was completed in a very professional and extremely competent manner on a timely basis with an eye toward detail. I would highly recommend J&J ‘s Remodeling to anyone needing to hire a professional for any remodeling and/or construction project."

CJ D on October 2025

Avatar for Auto Transport - United Freight Of America

Auto Transport - United Freight Of America

4.84(
920
)

Auto Transport - United Freight Of America

4.84(
920
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

Avatar for AppliancePartsPros.com

AppliancePartsPros.com

4.73(
287
)

AppliancePartsPros.com

4.73(
287
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025

Avatar for New York Sash

New York Sash

4.84(
118
)

New York Sash

4.84(
118
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

New York Sash consistently provides homeowners with products that not only improve the appearance and value of their home, but saves them energy usage (and energy dollars) as well! Not only do we provide and install these products, we also stand behind them with a full service department to honor all warranty and guarantee promises made. This gives our customers complete peace of mind. Additionally, all of our installers are certified by the Occupational Safety and health Administration (OSHA) and certified in Lead Safety through the Environmental Protection Agency. New York Sash is fully insured. We are safe on the job and with your home.We also have a state-of-the-art Idea & Design Center with many product options on display, to allow homeowners to look and feel what the products would be like installed in their home.

"Brian, Bryan and Matt were our crew and were excellent. They were efficient, friendly and kind to me and my kids who liked to watch them work. The windows they completed look perfect. There was one window that they had to reschedule due to the space being very un-level. They ordered a brand new window and scheduled a new date to complete the job for the last window. They called as they were finishing up to explain everything. I also appreciated that I didn't have to be present for them to complete the job so that I was able to go to work."

Mallory C on May 2022

New York Sash consistently provides homeowners with products that not only improve the appearance and value of their home, but saves them energy usage (and energy dollars) as well! Not only do we provide and install these products, we also stand behind them with a full service department to honor all warranty and guarantee promises made. This gives our customers complete peace of mind. Additionally, all of our installers are certified by the Occupational Safety and health Administration (OSHA) and certified in Lead Safety through the Environmental Protection Agency. New York Sash is fully insured. We are safe on the job and with your home.We also have a state-of-the-art Idea & Design Center with many product options on display, to allow homeowners to look and feel what the products would be like installed in their home.

"Brian, Bryan and Matt were our crew and were excellent. They were efficient, friendly and kind to me and my kids who liked to watch them work. The windows they completed look perfect. There was one window that they had to reschedule due to the space being very un-level. They ordered a brand new window and scheduled a new date to complete the job for the last window. They called as they were finishing up to explain everything. I also appreciated that I didn't have to be present for them to complete the job so that I was able to go to work."

Mallory C on May 2022

Avatar for BREATHE EASY of CNY Inc

BREATHE EASY of CNY Inc

4.93(
28
)

BREATHE EASY of CNY Inc

4.93(
28
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

For more than 25 years, Breathe Easy has served the CNY area with high-quality heating and cooling services with the friendly, approachable attitude of a family-owned business. We're here to help provide true comfort in your home, no matter the season! *We provide our customers with a system and solution that fits their unique needs. * We maintain a high level of quality among our staff. * We do the job right the first time. * Local - forget the big names where you're just a number, and opt for a local company that cares about the impact left on our community.

"Taylor and Kyle were great! Good work and very informative."

Stephen K on February 2025

For more than 25 years, Breathe Easy has served the CNY area with high-quality heating and cooling services with the friendly, approachable attitude of a family-owned business. We're here to help provide true comfort in your home, no matter the season! *We provide our customers with a system and solution that fits their unique needs. * We maintain a high level of quality among our staff. * We do the job right the first time. * Local - forget the big names where you're just a number, and opt for a local company that cares about the impact left on our community.

"Taylor and Kyle were great! Good work and very informative."

Stephen K on February 2025

Avatar for Comfort Windows

Comfort Windows

4.69(
139
)

Comfort Windows

4.69(
139
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Comfort Windows is Upstate NY's Premier Home Improvement Company. Local experts for windows, doors, bathrooms, basements, insulation, sunrooms, siding and more.

"It was a great experience. The salesperson was very knowledgeable and professional. The work was done just as it was proposed."

Melinda G on May 2019

Comfort Windows is Upstate NY's Premier Home Improvement Company. Local experts for windows, doors, bathrooms, basements, insulation, sunrooms, siding and more.

"It was a great experience. The salesperson was very knowledgeable and professional. The work was done just as it was proposed."

Melinda G on May 2019

Avatar for KC Curb Appeal

KC Curb Appeal

4.89(
84
)

KC Curb Appeal

4.89(
84
)
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

KC Curb Appeal was established in 2009 by a landscape professional who had experience in Landscaping, Hardscapes, Lawn Mowing & Plowing for over six years. KC Curb Appeal has been a successful growing small business in Central New York. With little advertising the company has grown by word of mouth. KC Curb Appeal thrives on quality work and making sure the job is done properly the first time. Our company offers free estimates. Please give us a call today!

"First off, it was a pleasure having this company work on my property. They arrived on time, I was introduced to the crew and after a brief review of the job they diligently got to work. They completed the job beautifully after several hours and it appeared that they went above and beyond my expectations. I would/will defiantly hire this company again!"

Katrina H on September 2020

KC Curb Appeal was established in 2009 by a landscape professional who had experience in Landscaping, Hardscapes, Lawn Mowing & Plowing for over six years. KC Curb Appeal has been a successful growing small business in Central New York. With little advertising the company has grown by word of mouth. KC Curb Appeal thrives on quality work and making sure the job is done properly the first time. Our company offers free estimates. Please give us a call today!

"First off, it was a pleasure having this company work on my property. They arrived on time, I was introduced to the crew and after a brief review of the job they diligently got to work. They completed the job beautifully after several hours and it appeared that they went above and beyond my expectations. I would/will defiantly hire this company again!"

Katrina H on September 2020

Avatar for Isaac Heating & Air Conditioning

Isaac Heating & Air Conditioning

4.67(
95
)

Isaac Heating & Air Conditioning

4.67(
95
)
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Since 1945, Isaac Heating and Air Conditioning has diligently, grown and evolved to meet the needs of our many valuable customers. We focus on Safety, Uncompromising Integrity, Accountability, Excellence, Outstanding Service and Balance.

"No they broke my mothers stairs and scratched her floor and I have them on the ring saying that they did it but call after call no response and they where b******* about the sales person the whole time they where there"

Joel W on May 2025

Since 1945, Isaac Heating and Air Conditioning has diligently, grown and evolved to meet the needs of our many valuable customers. We focus on Safety, Uncompromising Integrity, Accountability, Excellence, Outstanding Service and Balance.

"No they broke my mothers stairs and scratched her floor and I have them on the ring saying that they did it but call after call no response and they where b******* about the sales person the whole time they where there"

Joel W on May 2025

Avatar for CNY Drywall

CNY Drywall

4.88(
107
)

CNY Drywall

4.88(
107
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Family owned and operated, we perform all levels of building and remodeling.

"Excellent job and great guy. Would definitely hire again and recommend to others."

edward a on July 2020

Family owned and operated, we perform all levels of building and remodeling.

"Excellent job and great guy. Would definitely hire again and recommend to others."

edward a on July 2020

...
Showing 1-10 of 215

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

*The Angi rating for Heating And Air Conditioning Service companies in Williamstown, 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 Williamstown, 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 04, 2026

Heating and Air Conditioning questions, answered by experts

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

A blockage in the ductwork may prevent air from flowing through the vent. If some rooms in your home are very hot or cold and another isn't, that can be a sign that a vent is blocked. Another sign of a blockage is a buildup of dirt or dust around the vent. In either case, a duct installer or cleaning service can investigate the issue for you and recommend a course of action.

A frosty expansion valve that isn't blowing out cool air is a sure sign that it’s time to replace it. It might also be time to replace the TXV valve if your AC unit switches off soon after turning on or if you have poor airflow in your home.

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

The Williamstown, 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.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"