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TRUSTED BY HOMEOWNERS

Average homeowner rating star icon4.7
Average homeowner rating
Verified reviews icon46
Verified heating and air conditioning services reviews

Heating and air conditioning pros in Williamstown

Avatar for Montani Mechanical Group LLC
Montani Mechanical Group LLC
132 HARRIS DR
5.00(
26
)
Approved Pro
Montani Mechanical Group LLC
132 HARRIS DR
5.00(
26
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
217 local quotes requested

Montani Mechanical Group, LLC, is committed to providing the highest quality work at the most cost effective price. We are locally owned and operated, and our fully licensed and insured service technicians, plumbers, and installers are some of the very best in West Virginia. We make customer satisfaction our highest priority. With a combined 40 years of experience in heating, cooling, plumbing, electric, and refrigeration, our company strives to provide both our residential and commercial customers the best experience in what can be very stressful times. Montani Mechanical Group is also a proud Ruud Pro Partner. When homeowners need an independent heating and cooling contractor they can trust, they turn to the pros— Ruud® Pro Partners. No other contractor supplies, installs and services more Ruud residential solutions. Pro Partners are held to the highest standards of customer service, professional training and industry expertise. We offer 24/7 emergency service, and are only ever a phone call away. Free estimates for select projects, ask for details.

"Came in to give a quote. Joseph was very polite and answered all our questions. We look forward to them coming back to do the job"

Loren C on November 2024

Montani Mechanical Group, LLC, is committed to providing the highest quality work at the most cost effective price. We are locally owned and operated, and our fully licensed and insured service technicians, plumbers, and installers are some of the very best in West Virginia. We make customer satisfaction our highest priority. With a combined 40 years of experience in heating, cooling, plumbing, electric, and refrigeration, our company strives to provide both our residential and commercial customers the best experience in what can be very stressful times. Montani Mechanical Group is also a proud Ruud Pro Partner. When homeowners need an independent heating and cooling contractor they can trust, they turn to the pros— Ruud® Pro Partners. No other contractor supplies, installs and services more Ruud residential solutions. Pro Partners are held to the highest standards of customer service, professional training and industry expertise. We offer 24/7 emergency service, and are only ever a phone call away. Free estimates for select projects, ask for details.

"Came in to give a quote. Joseph was very polite and answered all our questions. We look forward to them coming back to do the job"

Loren C on November 2024


Avatar for An Aire Experts
An Aire Experts
415 Valley Manor Ln
5.00(
1
)
Approved Pro
An Aire Experts
415 Valley Manor Ln
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 local quotes requested

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.

"N/a"

Tyler E on June 2024

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.

"N/a"

Tyler E on June 2024


Grogg's Home Services
5349 Dupont Rd
New on HomeAdvisorNew on Angi
Approved Pro
Grogg's Home Services
5349 Dupont Rd
New on AngiNew on HomeAdvisor
Approved Pro
55 years of experience
Free onsite estimate

For more than five decades, Grogg’s Home Services has been your trusted neighborhood provider for HVAC, plumbing, and electrical needs. We are committed to prioritizing top-notch customer service and unparalleled quality in all that we do. Our team takes great pride in our craftsmanship and in serving our valued clients with dedication. If you haven't experienced our services yet, we invite you to join the ranks of our satisfied customers. And to our existing patrons, we extend our heartfelt gratitude for your ongoing support, which has shaped us into who we are today. Heating, air conditioning, geothermal heat pump, furnaces, dual fuel, hybrid systems, tank less water heaters, boilers, thermostats, indoor air quality, duct cleaning, sanitizing, deodorizing, humidifiers, ventilation, plumbing service, hot water tanks, water fixture replacements, surge protection, backflow prevention, window replacement, and door replacement.

For more than five decades, Grogg’s Home Services has been your trusted neighborhood provider for HVAC, plumbing, and electrical needs. We are committed to prioritizing top-notch customer service and unparalleled quality in all that we do. Our team takes great pride in our craftsmanship and in serving our valued clients with dedication. If you haven't experienced our services yet, we invite you to join the ranks of our satisfied customers. And to our existing patrons, we extend our heartfelt gratitude for your ongoing support, which has shaped us into who we are today. Heating, air conditioning, geothermal heat pump, furnaces, dual fuel, hybrid systems, tank less water heaters, boilers, thermostats, indoor air quality, duct cleaning, sanitizing, deodorizing, humidifiers, ventilation, plumbing service, hot water tanks, water fixture replacements, surge protection, backflow prevention, window replacement, and door replacement.


Hammer & Heat, LLC.
1511 Brook Pl
No reviews
Hammer & Heat, LLC.
1511 Brook Pl
No reviews
2 years of experience

Furnace Repairs, Servicing, and Installations - A/C Repairs, Servicing, and Installations s - Mini Splits, PTACs, and Air Handlers Solutions - ...and much more!!!

Furnace Repairs, Servicing, and Installations - A/C Repairs, Servicing, and Installations s - Mini Splits, PTACs, and Air Handlers Solutions - ...and much more!!!


Ryan's Heating and Air Conditioning
66 Dempsie Ave
5.00(
1
)
Ryan's Heating and Air Conditioning
66 Dempsie Ave
5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

"Welcome to Ryan's Heating and Air Conditioning, where we redefine comfort with expertise and care. As a leading HVAC service provider, we specialize in heating, ventilation, and air conditioning solutions. Our dedicated team of certified technicians is committed to delivering top-notch services, from installations and repairs to maintenance. With a focus on energy efficiency and cutting-edge technology, we ensure optimal indoor climate control for residential and light spaces. Trust us to keep you cool in summer, warm in winter, and breathing easy all year round. Your comfort is our priority."

"Very professional and there at any time of need."

Donnie L on November 2023

"Welcome to Ryan's Heating and Air Conditioning, where we redefine comfort with expertise and care. As a leading HVAC service provider, we specialize in heating, ventilation, and air conditioning solutions. Our dedicated team of certified technicians is committed to delivering top-notch services, from installations and repairs to maintenance. With a focus on energy efficiency and cutting-edge technology, we ensure optimal indoor climate control for residential and light spaces. Trust us to keep you cool in summer, warm in winter, and breathing easy all year round. Your comfort is our priority."

"Very professional and there at any time of need."

Donnie L on November 2023


NDS HVAC SALES
423 Lewis Pointe Drive
5.00(
5
)
NDS HVAC SALES
423 Lewis Pointe Drive
5.00(
5
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

NEW TO ANGI LIST BUT NOT NEW TO THE INDUSTRY, WITH OVER 10 YEARS IN THE TRADE WE CAN SERVICE YOUR EVERY NEED. SPECIALIZING IN RESIDENTIAL HVAC WE CAN MAKE YOUR HOME SAFER AND MORE COMFORTABLE FOR YOUR FAMILY CONTACT US FOR SERVICE, INSTALLATION, AND MAINTENANCE! WHEN YOU CALL MENTION ANGI FOR A FREE ESTIMATE OR 10% OFF YOUR REPAIR!

"Incredibly efficient and knowledgeable"

Mathew C on January 2024

NEW TO ANGI LIST BUT NOT NEW TO THE INDUSTRY, WITH OVER 10 YEARS IN THE TRADE WE CAN SERVICE YOUR EVERY NEED. SPECIALIZING IN RESIDENTIAL HVAC WE CAN MAKE YOUR HOME SAFER AND MORE COMFORTABLE FOR YOUR FAMILY CONTACT US FOR SERVICE, INSTALLATION, AND MAINTENANCE! WHEN YOU CALL MENTION ANGI FOR A FREE ESTIMATE OR 10% OFF YOUR REPAIR!

"Incredibly efficient and knowledgeable"

Mathew C on January 2024


Heating, Air conditioning Installation and service


Temp controllers
P.o. Box 61
No reviews
Temp controllers
P.o. Box 61
No reviews

Service and installation of heating & air conditioning equipment.Been in those line of work for 35 years, Small company to provide affordable services

Service and installation of heating & air conditioning equipment.Been in those line of work for 35 years, Small company to provide affordable services


A&H Services
2212 Mount Carmel Ridge Rd
No reviews
A&H Services
2212 Mount Carmel Ridge Rd
No reviews
6 years of experience

With over 20 years of experience in the home improvement and Handyman areas including over 5 years in the Heating and Cooling industry, we are the experts you need to call to take care of your home or business. With prices that you can work with and wont break the bank. We handle everything from handyman projects including flooring, plumbing, water tanks painting and anything inside and outside your home including all your heating and cooling needs.. We will treat your home or business as we would treat our own. Give A & H Services a call today, we look forward to working with you!

With over 20 years of experience in the home improvement and Handyman areas including over 5 years in the Heating and Cooling industry, we are the experts you need to call to take care of your home or business. With prices that you can work with and wont break the bank. We handle everything from handyman projects including flooring, plumbing, water tanks painting and anything inside and outside your home including all your heating and cooling needs.. We will treat your home or business as we would treat our own. Give A & H Services a call today, we look forward to working with you!


Roach Mechanica
365 Burdette Ave
No reviews
Roach Mechanica
365 Burdette Ave
No reviews

Heating cooling refrigeration for residential and commercial. We also specialize in mold testing and remediation.

Heating cooling refrigeration for residential and commercial. We also specialize in mold testing and remediation.

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Heating and air conditioning services FAQs

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 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.
Happy family playing on the floor
Apr 2, 2025
Apr 2, 2025
A HEPA filter can help clear airborne particles that plague your home, such as dust and pollen, making the air cleaner and easier to breathe.
Portable dehumidifier sitting in the hallway of a house
Apr 3, 2025
Apr 3, 2025
If your home feels like a rainforest, it’s time to determine why your house is so humid and how to get rid of the excess moisture.
Family playing in the living room
Apr 2, 2025
Apr 2, 2025
If you have dampers in your home's ducts, you can adjust them to control the airflow from your HVAC unit. Learn how to adjust dampers in ducts without the help of a pro.
An attic turned into a minimalistic bedroom
Apr 6, 2025
Apr 6, 2025
If you’re wondering why your attic is so hot, take a closer look at the ventilation, insulation, and your roof to find the best solution for cooling it down.
Mother helping daughter put on coat
Apr 3, 2025
Apr 3, 2025
Entering your home should remove a chill, not create one. If your house is colder than the outside, talk to a pro to find the cause and fix it.
Woman at home reading book and drinking coffee
Apr 3, 2025
Apr 3, 2025
Looking to reduce airborne pollutants and contaminants in your home? Learn the benefits of air duct cleaning and why you should hire a pro for the service.