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4.7

(144 reviews)

Top-rated heating and air conditioning pros.

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Avatar for Call The Whale
Call The Whale
4.0(
522
)

Serving Williston, VT and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Mr. John Valentine was very professional in his approach to troubleshooting and solving the HVAC issue and kept me involved as he went through his process in being very informative."
Response time1 day
29 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Current Electric, Inc.
Current Electric, Inc.
4.9(
22
)

Serving Williston, VT and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"I needed someone fairly quick with a faulty outlet. I was contacted within an hour of reaching out to Current Electric. We discussed the problem and was able to set up the service quickly. They were there at the exact time that was agreed upon. The problem was fixed and area was cleaned and all appliances were plugged in. Thank you for the awesome service!"
Coffee Bar Lighting
Under Cabinet Lighting
Under Cabinet Lighting
Kitchen Remodel
Timber Frame Lighting

+5

Response time2 days
12 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Night & Day Cleaning VT
Night & Day Cleaning VT
5.0(
1
)

Serving Williston, VT and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Offers commercial services

Hello! My name is Susannah, and I am a 25 year old business owner with 4 years of hands-on cleaning experience and 1 year successfully working for myself and running my own business!\nI bring all my own products, natural and conventional as well as other supplies, including vacuum, mop, steam mop, electric scrubber, rags, \nI'm passionate about helping homes feel fresh, organized, and stress-free!\n•I provide all cleaning supplies and products, including natural, conventional, and scent-free\n• Other supplies includes vacuum, mop, steam mop, swiffer, dusters, electric scrubbers, ladder, rags, trash bags, etc!\n•Regular, deep, commercial, and one-time cleans available\n•Reliable, thorough, and detail-oriented!\n•Friendly service with flexible scheduling\n•Pet, disability and children friendly💜\nWhether you need weekly maintenance, a deep clean, or help getting back on top of things, I'd love to help make your space sparkle with a judgement free attitude! 😊\nLet’s make your home shine! ✨

5 neighbors recently requested a quote
Integrity Plumbing and Heating LLC
3.7(
3
)

Serving Williston, VT and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

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!

6 neighbors recently requested a quote
Recommended by100%of homeowners
Spartan Mechanical, LLC
3.3(
4
)

Serving Williston, VT and surrounding areas

Approved

In business since 2011

Free estimates

Customers say: Quick response

"Timely and excellent service, our old boiler was red tagged by Vt gas. We were out of hot water. Kyle was able to get a new boiler installed with in 24 hours of my first contact with him. His crew was very professional and clean. He did and great jobs and I highly recommend Sparton mechanical."
Response time10 mins
Recommended by66%of homeowners
Avatar for Jay Scannell
Jay Scannell
New to Angi

Serving Williston, VT and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

My name is Jay Scannell and I enjoy cleaning and making things spotless. My mother always made sure our house was clean as I was growing up and naturally I have liked to follow those similar footsteps and take it that one step further. I’d enjoy cleaning for you and your family if need be and I am open to anything you throw at me:).

1 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

There are several AC unit problems to troubleshoot, but luckily you can identify them by keeping a close eye on your system. Look out for the following signs that your AC needs repair:

  • Unusual noises during operation

  • AC unit blows warm air

  • AC unit doesn’t come on or turn off with temperature changes

  • Strange odors come through the vents

  • AC unit cycles on and off rapidly

  • Indoor air is more humid or less comfortable than usual

  • AC unit keeps tripping your breaker

  • Fan in the outdoor compressor doesn’t operate when the AC is on

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

The higher the BTU rating an air conditioner has, the more effective it can be at cooling your space. It will cool off your room faster in the short term. However, over the long term, if the unit has too many BTUs for the space, it can wear down the unit faster and shorten its life span.

Yes, it’s best to turn off an AC unit that’s blowing hot air to prevent system damage and avoid expensive energy bills. If you let the AC continue running, it will put more strain on the condenser coil and compressor. Plus, if the AC is blowing hot air because of a refrigerant leak, it can also lead to a frozen evaporator coil.

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.