Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Williston, VT

Enter your zip and get matched with up to 5 pros

TRUSTED BY WILLISTON, VT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon144
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Williston

Avatar for Call The Whale

Call The Whale

4.50(
422
)
Approved Pro

Call The Whale

4.50(
422
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
7 years of experience

Here at Call The Whale, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Overcharged by WAY too much. The hydrostat charge was $862.90, and they installed a different brand than was on the invoice. The cost on Amazon for that unit is $188. Taco Zone Valve charged $745.56: valve on Amazon: $134.00 Same with other charges $3609.80 total. Less than 3 hours labor x 2 guys... who showed up late in the day when they scheduled for the morning."

Rick H on November 2022

Here at Call The Whale, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Overcharged by WAY too much. The hydrostat charge was $862.90, and they installed a different brand than was on the invoice. The cost on Amazon for that unit is $188. Taco Zone Valve charged $745.56: valve on Amazon: $134.00 Same with other charges $3609.80 total. Less than 3 hours labor x 2 guys... who showed up late in the day when they scheduled for the morning."

Rick H on November 2022


Avatar for Call The Whale

Call The Whale

4.49(
425
)
Approved Pro

Call The Whale

4.49(
425
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
7 years of experience

Here at Call The Whale, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"During the heat dome days we found out our air conditioning needed recharging. They insisted on up front payment (first red flag) then quoted over $800 to refill the units (2). They did not look for nor try to fix the leak but instead gave me a proposal over $3,000 to come back and fix the unit(1). I used them because they were the ones who could come the quickest. Never again."

Jim t on July 2025

Here at Call The Whale, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"During the heat dome days we found out our air conditioning needed recharging. They insisted on up front payment (first red flag) then quoted over $800 to refill the units (2). They did not look for nor try to fix the leak but instead gave me a proposal over $3,000 to come back and fix the unit(1). I used them because they were the ones who could come the quickest. Never again."

Jim t on July 2025


Avatar for Lone Wolf Energy, LLC

Lone Wolf Energy, LLC

5.00(
7
)
Approved Pro

Lone Wolf Energy, LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
9 years of experience
Free onsite estimate

Lone Wolf Energy, LLC brings an unmatched commitment to excellence to your HVAC projects. We have over 6 years experience delivering unsurpassed professionalism, expertise, and value. We take pride in providing our customers with personalized customer service, the highest industry standards, and top quality workmanship. References available upon request. Give me a call today!

"He called to set up a date to look at my house and see how to install the heat pump. He then had a date and installed the heat pump. He was on time, answered all my questions and was very professional. I would hire him again in a minute!!"

Dennis M on August 2025

Lone Wolf Energy, LLC brings an unmatched commitment to excellence to your HVAC projects. We have over 6 years experience delivering unsurpassed professionalism, expertise, and value. We take pride in providing our customers with personalized customer service, the highest industry standards, and top quality workmanship. References available upon request. Give me a call today!

"He called to set up a date to look at my house and see how to install the heat pump. He then had a date and installed the heat pump. He was on time, answered all my questions and was very professional. I would hire him again in a minute!!"

Dennis M on August 2025


Avatar for Devino Electric & Mechanical

Devino Electric & Mechanical

5.00(
3
)
Approved Pro

Devino Electric & Mechanical

5.00(
3
)
Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

We bring years of expertise and dedication to every project. With a strong background in customer service and technical proficiency, we prioritize delivering top-notch results that exceed expectations. Our commitment to continuous learning ensures that I stay updated with the latest industry trends and best practices. Whether it's troubleshooting complex issues or providing routine maintenance, we approach each task with precision and professionalism. Our goal is to build lasting relationships with clients based on trust, reliability, and exceptional service delivery.

"He figured out a great solution to a tough problem"

John C on November 2025

We bring years of expertise and dedication to every project. With a strong background in customer service and technical proficiency, we prioritize delivering top-notch results that exceed expectations. Our commitment to continuous learning ensures that I stay updated with the latest industry trends and best practices. Whether it's troubleshooting complex issues or providing routine maintenance, we approach each task with precision and professionalism. Our goal is to build lasting relationships with clients based on trust, reliability, and exceptional service delivery.

"He figured out a great solution to a tough problem"

John C on November 2025


Lone Wolf Energy

5.00(
2
)
Approved Pro

Lone Wolf Energy

5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Completed the job ahead of schedule, under budget and did quality work. 100% would recommend"

Mike J on February 2025

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Completed the job ahead of schedule, under budget and did quality work. 100% would recommend"

Mike J on February 2025


Integrity Plumbing and Heating LLC

5.00(
2
)
Approved Pro

Integrity Plumbing and Heating LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"N/A"

Keith B on December 2020

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"N/A"

Keith B on December 2020


Spartan Mechanical, LLC

3.67(
3
)
Approved Pro

Spartan Mechanical, LLC

3.67(
3
)
Approved Pro
Customers say: Quick response
15 years of experience
Free onsite estimate

We are dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients, and guarantee your satisfaction.

"BUYER BEWARE... if you do not want a lien placed on your property at the same time they give you a proposal steer clear of Spartan Mechanical. Reporting to BBB."

Brian W on February 2025

We are dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients, and guarantee your satisfaction.

"BUYER BEWARE... if you do not want a lien placed on your property at the same time they give you a proposal steer clear of Spartan Mechanical. Reporting to BBB."

Brian W on February 2025


Green State Plumbing & Heating, LLC

New on AngiNew on Angi
Approved Pro

Green State Plumbing & Heating, LLC

New on AngiNew on Angi
Approved Pro
6 years of experience
Free onsite estimate

Welcome to Green State Plumbing & Heating LLC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

Welcome to Green State Plumbing & Heating LLC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!


LAROE & SON PLUMBING & HEATING LLC

New on AngiNew on Angi
Approved Pro

LAROE & SON PLUMBING & HEATING LLC

New on AngiNew on Angi
Approved Pro
6 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!


"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

...
Showing 1-10 of 230
Heating and Air Conditioning questions, answered by experts

An HVAC unit, like a furnace, air conditioner, or heat pump, produces warm or hot air. The air ducts serve as the passages to help heat or cool air from the HVAC unit flow through the home. Air ducts are just one part of the overall HVAC system.

While Freon is mostly odorless, a Freon leak will produce a faint chloroform-like smell. Some people find that Freon's odor has a subtle sweetness to it. Some telltale signs of a Freon leak beyond odor include ice crystals on your evaporator coil, bubbling sounds, and hissing noises.  

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

Yes, the furnace and AC use the same blower. The blower is located in the base of the furnace and pushes hot air out of the furnace and into the ducts. It also pushes cool air through the home when the air conditioning is on. Even though the furnace and air conditioning work independently of one another, the blower is an essential component for both systems.

While spending money once or twice a year to tuneup your AC and furnace might seem like a waste of money, think again. The cost of HVAC maintenance is far less than the cost of replacing your furnace or AC unit, regardless of the type of HVAC system you have. Paying this smaller fee now will help you avoid paying much more significant costs in the future. Not to mention, having a serviced AC and heating system will help keep your home comfortable, no matter the season. 

The Williston, VT 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.

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"