Top-rated heating and air conditioning pros.

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

There are 36 highly-rated local heating and air conditioning pros.

TRUSTED BY WILLIAMSTOWN, NJ HOMEOWNERS

Average homeowner rating star icon4.5
Average homeowner rating
Verified reviews icon530
Verified heating and air conditioning services reviews

Heating and air conditioning pros in Williamstown

Waterworks Plumbing and Heating Services LLC.
247 Sunnybrook Road
4.50(
8
)
Waterworks Plumbing and Heating Services LLC.
247 Sunnybrook Road
4.50(
8
)

Always At Your Service More than just a plumber, Waterworks Plumbing & Heating Services is a true member of the community, providing necessary services at affordable prices. Whether you're dealing with backflow issues or faulty plumbing fixtures, we'll make sure your home or business is in good hands. We can take on everything from new plumbing fixture installations to sewage repair services, and we'll be there quickly to avoid as much damage as possible. When you need local plumbing services in Barrington, NJ, rely on Waterworks Plumbing & Heating Services. Faulty Plumbing Is No Problem For Us Rely on Us for Local Plumbing Services in the Barrington, NJ Area Nobody likes calling a plumber, but when there's a problem you want it sorted out fast. Waterworks Plumbing & Heating Services LLC strives to do exactly that. Our expert plumbing contractors will address every possible issue your property may have with speed, competence and professionalism. Give us a call for general plumbing services, sewage system repairs, water heater maintenance, drain cleaning and more!

"Wow. Waterworks. Where to begin. My family and I moved here from Washington State in 2019. We have a 100 year old house, and right before COVID my sewer pipes had issues and there was raw sewage filling my basement. I called my home warranty, Cinch, and they attached me to Waterworks. Bobby came out, assessed the damage, and they got to work. Then the guy running the operation, Joe, came on the scene. My basement freezer was unplugged, ruining a few hundred bucks worth of meat. I went out one day, smiled, asked if I could get them anything–usually that means something to drink, water. Joe said “Yeah, how ‘bout some Hoagies?” I thought it was a joke, but he was dead serious. Now if I say no, I’m the jerk. So lunch cost me 200 bucks. The day they were digging the trench to replace the pipe it was pouring. But they dug it anyway, destroying my whole yard. Joe said, don’t worry, lay some sod down–it’ll be cheap. They gave me options for run off to go to the curb–the dollar signs were already out of control. I ask what’s the cheapest, and he tells me to run it out the side for it to just go down to the street. At this point, being new to all this, that sounded fine. It wasn’t–it flooded my neighbor’s driveway every day. I call, Joe tells me to just bypass it so water goes out with the sewage. What I didn’t know was that it was illegal. To top it all off, the cleanout was put, sticking up, in the middle of my dirt yard–not close to the house, where it should have gone. He said not to worry, they’d cut it back in the spring and I could put a pond over it or bushes or something. Then it came time to get Cinch to pay me three of the TEN THOUSAND it cost me for the job. I had to nag and nag and nag before he said he was on the phone with them for hours, but he had made sure to get me the best price. The check, he said, would come to him and I could come pick it up there, but he’d have to charge me for billable hours. I call Cinch, they said they cut the check immediately and it would come to my house in a few days. I called good ‘ole Joe and called him on it. He said he thought I’d just want to tip him for such a bang up job they did, A few years roll by–I had the pipe cut back, ate the rest of the costs or did things myself. Years go by. 2023. I had to call about a different issue, and I was sent to Waterworks again. I lost it. I talked to the new manager/owner, can’t remember her name.. Said Joe was out, she was horrified, wanted to make it right, and maybe I’d want to give them a good review when all was said and done. Here’s what ‘right’ looked like: They did everything they were supposed to, but they would run a new pipe to the street. They would do it for a discounted grand. Again, lost it–I shouldn’t have to pay a dime. I had a friend, a contractor, come over and look after I told him about it. The pipe from basement to street is already there. There were leaves covering it. Now I want to sell the house, and I still have to deal with this. Yeah, they sure made everything right. If I could go negative, I would."

Michael R on December 2024

Always At Your Service More than just a plumber, Waterworks Plumbing & Heating Services is a true member of the community, providing necessary services at affordable prices. Whether you're dealing with backflow issues or faulty plumbing fixtures, we'll make sure your home or business is in good hands. We can take on everything from new plumbing fixture installations to sewage repair services, and we'll be there quickly to avoid as much damage as possible. When you need local plumbing services in Barrington, NJ, rely on Waterworks Plumbing & Heating Services. Faulty Plumbing Is No Problem For Us Rely on Us for Local Plumbing Services in the Barrington, NJ Area Nobody likes calling a plumber, but when there's a problem you want it sorted out fast. Waterworks Plumbing & Heating Services LLC strives to do exactly that. Our expert plumbing contractors will address every possible issue your property may have with speed, competence and professionalism. Give us a call for general plumbing services, sewage system repairs, water heater maintenance, drain cleaning and more!

"Wow. Waterworks. Where to begin. My family and I moved here from Washington State in 2019. We have a 100 year old house, and right before COVID my sewer pipes had issues and there was raw sewage filling my basement. I called my home warranty, Cinch, and they attached me to Waterworks. Bobby came out, assessed the damage, and they got to work. Then the guy running the operation, Joe, came on the scene. My basement freezer was unplugged, ruining a few hundred bucks worth of meat. I went out one day, smiled, asked if I could get them anything–usually that means something to drink, water. Joe said “Yeah, how ‘bout some Hoagies?” I thought it was a joke, but he was dead serious. Now if I say no, I’m the jerk. So lunch cost me 200 bucks. The day they were digging the trench to replace the pipe it was pouring. But they dug it anyway, destroying my whole yard. Joe said, don’t worry, lay some sod down–it’ll be cheap. They gave me options for run off to go to the curb–the dollar signs were already out of control. I ask what’s the cheapest, and he tells me to run it out the side for it to just go down to the street. At this point, being new to all this, that sounded fine. It wasn’t–it flooded my neighbor’s driveway every day. I call, Joe tells me to just bypass it so water goes out with the sewage. What I didn’t know was that it was illegal. To top it all off, the cleanout was put, sticking up, in the middle of my dirt yard–not close to the house, where it should have gone. He said not to worry, they’d cut it back in the spring and I could put a pond over it or bushes or something. Then it came time to get Cinch to pay me three of the TEN THOUSAND it cost me for the job. I had to nag and nag and nag before he said he was on the phone with them for hours, but he had made sure to get me the best price. The check, he said, would come to him and I could come pick it up there, but he’d have to charge me for billable hours. I call Cinch, they said they cut the check immediately and it would come to my house in a few days. I called good ‘ole Joe and called him on it. He said he thought I’d just want to tip him for such a bang up job they did, A few years roll by–I had the pipe cut back, ate the rest of the costs or did things myself. Years go by. 2023. I had to call about a different issue, and I was sent to Waterworks again. I lost it. I talked to the new manager/owner, can’t remember her name.. Said Joe was out, she was horrified, wanted to make it right, and maybe I’d want to give them a good review when all was said and done. Here’s what ‘right’ looked like: They did everything they were supposed to, but they would run a new pipe to the street. They would do it for a discounted grand. Again, lost it–I shouldn’t have to pay a dime. I had a friend, a contractor, come over and look after I told him about it. The pipe from basement to street is already there. There were leaves covering it. Now I want to sell the house, and I still have to deal with this. Yeah, they sure made everything right. If I could go negative, I would."

Michael R on December 2024


ES Renovations, LLC
4454 Frosthoffer Ave
5.00(
4
)
ES Renovations, LLC
4454 Frosthoffer Ave
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We, at ES Renovations, specialize in various trade skills that include but aren't limited to interior and exterior carpentry, electrical, plumbing, painting, wood work, and more. Our main focus and goal is work quality and customer satisfaction. We never want to leave a project as it is if a customer isn't fully satisfied. This particular small business started back in 2018, but the owner and staff have about 20 years of experience. They have had the pleasure of working on various projects. Please don't hesitate to have a chat with us today for any home or building renovations! Check us out on social media! Facebook: ES Renovations LLC Instagram: @esrenovationsllc Website: esrenovationsllc.com

"Kevin and I were very pleased with the renovation work Christian and Javier's team did with 2 full baths in our home. Everything was completed as requested in a timely, respectful and efficient manner. We now have bathrooms we love! Thank you ES Renovations, LLC!"

Beth W on January 2024

We, at ES Renovations, specialize in various trade skills that include but aren't limited to interior and exterior carpentry, electrical, plumbing, painting, wood work, and more. Our main focus and goal is work quality and customer satisfaction. We never want to leave a project as it is if a customer isn't fully satisfied. This particular small business started back in 2018, but the owner and staff have about 20 years of experience. They have had the pleasure of working on various projects. Please don't hesitate to have a chat with us today for any home or building renovations! Check us out on social media! Facebook: ES Renovations LLC Instagram: @esrenovationsllc Website: esrenovationsllc.com

"Kevin and I were very pleased with the renovation work Christian and Javier's team did with 2 full baths in our home. Everything was completed as requested in a timely, respectful and efficient manner. We now have bathrooms we love! Thank you ES Renovations, LLC!"

Beth W on January 2024


VZM Construction LLC
872A N Maryland Ave
No reviews
VZM Construction LLC
872A N Maryland Ave
No reviews
Emergency services offered

Hello, my name is Carlos I am owner of VZM Construction LLC. We specialize is everything that has to do with home renovations. We do new bathrooms, kitchens, flooring (i.e vinyl, laminate, hardwood, carpeting, etc.), drywall, decks & porches, siding, power washing, amongst other things. We try our best to work with our customers and giving them reasonable estimates on great quality work.

Hello, my name is Carlos I am owner of VZM Construction LLC. We specialize is everything that has to do with home renovations. We do new bathrooms, kitchens, flooring (i.e vinyl, laminate, hardwood, carpeting, etc.), drywall, decks & porches, siding, power washing, amongst other things. We try our best to work with our customers and giving them reasonable estimates on great quality work.


ASV PLUMBING LLC
Fordham Road
No reviews
ASV PLUMBING LLC
Fordham Road
No reviews

ASV PLUMBING is a family owned and operated plumbing service company based out of Northeast Philadelphia. Father Judge graduate and I feel in love with the plumbing trade a week out of high school 10 years ago. I built my business off of honesty, reliability, and cleanliness. It is my goal to keep it that way, and help people when they need it most. We specialize in residential plumbing, drain cleaning, underground plumbing, and heating. We are Licensed & Insured and only produce quality work.

ASV PLUMBING is a family owned and operated plumbing service company based out of Northeast Philadelphia. Father Judge graduate and I feel in love with the plumbing trade a week out of high school 10 years ago. I built my business off of honesty, reliability, and cleanliness. It is my goal to keep it that way, and help people when they need it most. We specialize in residential plumbing, drain cleaning, underground plumbing, and heating. We are Licensed & Insured and only produce quality work.


Camdenskilledlaborsource.work/


Sammo Company Inc
167 E 2nd St
5.00(
11
)
Sammo Company Inc
167 E 2nd St
5.00(
11
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Sammo Company Inc. serviced over 100 clients with 100% customer satisfaction. Not all client’s reviews make it through the intense verification steps required by Angi. Over seven years in business and a lifetime of experience. Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work, neighbors as well. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today! We build Professional Decks, restoration and installation. Patios. We do interior and exterior work from the roof all down to the foundation. Competitive, if not, the best pricing.

"I had hired Jae to make my front porch larger with safer steps and a hand railing. Working with him and his guys exceeded my expectations. The new front porch is beautiful, safer, and more functional. Also adds more character and dimension to the front of our home. Working with Jae was so easy! His communication and responsiveness was always on point. I recently just hired Jae again to replace my skylights, And paint my living room vaulted ceilings. He will defiantly be my go to for any kind of work to be done around my home. I highly recommend Jae for all and any of your home improvement needs."

Stephanie M on October 2023

Sammo Company Inc. serviced over 100 clients with 100% customer satisfaction. Not all client’s reviews make it through the intense verification steps required by Angi. Over seven years in business and a lifetime of experience. Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work, neighbors as well. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today! We build Professional Decks, restoration and installation. Patios. We do interior and exterior work from the roof all down to the foundation. Competitive, if not, the best pricing.

"I had hired Jae to make my front porch larger with safer steps and a hand railing. Working with him and his guys exceeded my expectations. The new front porch is beautiful, safer, and more functional. Also adds more character and dimension to the front of our home. Working with Jae was so easy! His communication and responsiveness was always on point. I recently just hired Jae again to replace my skylights, And paint my living room vaulted ceilings. He will defiantly be my go to for any kind of work to be done around my home. I highly recommend Jae for all and any of your home improvement needs."

Stephanie M on October 2023



Millennium HVAC
No reviews
Millennium HVAC
No reviews

Family Owned and Operated Heating and Cooling HVAC Company. Proving Heating and Cooling service and installations in PA DE and South Jersey for over 4 decades ! Unbeatable pricing Guaranteed!

Family Owned and Operated Heating and Cooling HVAC Company. Proving Heating and Cooling service and installations in PA DE and South Jersey for over 4 decades ! Unbeatable pricing Guaranteed!


BM Mechanical LLC
No reviews
BM Mechanical LLC
No reviews
4 years of experience

BM Mechanical is a licensed and registered company specializing in mechanical services for residential and commercial properties. With over 30 years experience in the mechanical field, we have the expertise to resolve any issue in a timely manner and professional service. We perform all aspects of Heating/Air Conditioning service, new installation and upgrades.

BM Mechanical is a licensed and registered company specializing in mechanical services for residential and commercial properties. With over 30 years experience in the mechanical field, we have the expertise to resolve any issue in a timely manner and professional service. We perform all aspects of Heating/Air Conditioning service, new installation and upgrades.


Restoration 1
2014 Ford Rd
5.00(
4
)
Restoration 1
2014 Ford Rd
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

When disaster strikes, it's important to enlist the help of a company you can trust. Restoration 1 is committed to excellence in every aspect of your service, whether that means getting our restoration specialists thoroughly trained and professionally certified or simply staying up to date with the latest property restoration techniques and technologies or providing excellence customer service. When a restoration company is all of these things and more, you can trust that they have your best interests in mind and won't stop at anything until your property is restored to its pre-damaged condition.

"It went great!"

Jordan K on October 2022

When disaster strikes, it's important to enlist the help of a company you can trust. Restoration 1 is committed to excellence in every aspect of your service, whether that means getting our restoration specialists thoroughly trained and professionally certified or simply staying up to date with the latest property restoration techniques and technologies or providing excellence customer service. When a restoration company is all of these things and more, you can trust that they have your best interests in mind and won't stop at anything until your property is restored to its pre-damaged condition.

"It went great!"

Jordan K on October 2022

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FAQs for heating and air conditioning service projects in Williamstown, NJ

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 Williamstown, NJ 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.
new furnace blower motor closeup
Apr 29, 2025
Apr 29, 2025
When your HVAC system is acting up, it could be the blower motor to blame. See how much blower motor replacement costs and what impacts the price here.
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May 9, 2025
May 9, 2025
Here's what you can expect when getting an estimate for coolant leak repair costs. The cost can vary based on the detection method used, the source of the leak, and the amount of damage that needs to be repaired in the aftermath.
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May 21, 2025
May 21, 2025
Furnace cleaning is an essential annual chore to keep your home safe. Find out common furnace cleaning costs by type and size of furnace with this guide.
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Jun 16, 2025
Jun 16, 2025
Understanding how to calculate CFM in your home can help you determine how much airflow you need to regulate temperature and maximize HVAC efficiency.
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Jul 17, 2025
Jul 17, 2025
Discover the true ductless heat pump cost for your home. Learn about installation, factors affecting price, and ways to save in this comprehensive cost guide.
An HVAC system in the backyard of a brick house
Jun 9, 2025
Jun 9, 2025
This calculator helps you estimate how many BTUs you need for your heating and cooling, based on the size of your space, climate, and insulation.
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