Reliable Home Heating Company in Williamstown, NJ

Name: HVAC Contractor
Brand: Oliver Heating & Cooling
Rating: 4.6 (2043 reviews)

Since 1971 Your Peace of Mind
has been Our First Priority

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Oliver Heating & Cooling stands out as a reliable heating company in Williamstown. Our expert teams are skilled in handling all heating systems, offering expert installation, replacement, maintenance, and repair services. We’re dedicated to exceptional quality and are committed to ensuring you’re completely satisfied with our work.

Keeping You & Your Family Warm All Winter

Oliver has been the leading heating and cooling company in Williamstown since 1971, providing more than 50 years of reliable service. We take pride in keeping homes warm and safe, and our long-standing presence is a testament to our commitment. We offer a wide range of heating services, including new installations of furnaces, heat pumps, boilers, and other systems. Whether you need a system replacement or a technology upgrade, we’re here for you. Count on us for top-notch furnace repairs and seasonal maintenance that keep your heating system running efficiently and affordably.

Emergency Home Heating Repair Services

We know that heating problems don’t wait for the right moment, which is why Oliver offers emergency heating services in Williamstown. Our team of HVAC experts is available 24/7 to get your heater back in top shape. We keep our trucks fully stocked with the latest tools and equipment to quickly identify and fix any issue you’re facing.

Heater Installation in Williamstown

If your home heating system has failed and is 12 years or older, then replacing it may be an obvious choice. But there are reasons that you may want to replace a unit that is still running. Perhaps your gas or electric bill is higher this winter than ever before or you want to convert from oil to heat, for instance. In either case, Oliver sells and performs precision high-efficiency furnace, heat pump, and boiler installations in Williamstown. Call us at (888) 810-2681 or contact us online to speak with one of our comfort specialists. We can explore your options, answer your questions, and help you get the most out of your budget.

Heater Maintenance Gives You Peace of Mind

Oliver suggests regular home heating services to reduce your heating costs, enhance the lifespan of your system, and prevent costly repairs. Our HVAC maintenance plan offers a practical and economical solution, featuring scheduled inspections and cleanings. As a member, you’ll benefit from priority service, waived overtime charges, and discounted repair rates.

Types of Heaters We Install

Our reputable heating company in Williamstown caters to all heating systems used in the region. We specialize in installing high-efficiency furnaces, heat pumps, and boilers and handle maintenance and repairs for any system type, including electric, natural gas, propane, and oil. We also offer system conversions to meet your needs.

Furnaces

Furnaces are the preferred heating system for homes in Williamstown. Although electric furnaces are available, natural gas, propane, and oil models are often more popular. These forced-air systems rely on ductwork to spread warmth and need thorough inspections and cleanings of their parts before the start of each season.

Heat Pumps

Among the most efficient heating solutions for homes, heat pumps also offer cooling capabilities during the summer months. They use electricity to transfer energy rather than producing heat directly. When paired with a furnace, they provide supplemental heat and, similar to furnaces, require regular seasonal servicing.

Boilers

Hydronic heating systems, such as boilers, use hot water or steam distributed through pipes to radiators. They are not only efficient but also deliver steady warmth that many people appreciate. As with all heating systems, boilers require seasonal maintenance to keep them running smoothly.

Trust Oliver as Your Heating Company in Williamstown, NJ

Serving Williamstown and building a loyal customer base has been a point of pride for Oliver Heating & Cooling. We look forward to maintaining this legacy by providing you with reliable home heating services. Contact us at (888) 810-2681 or online to learn more about what we offer and to book an appointment at a time that works best for you.

Feedback From Our Happy Customers

At Oliver Heating & Cooling, we are dedicated to our customers above all else. Our unwavering commitment is to achieve 100% satisfaction in every interaction. We go the extra mile to ensure that our customers receive exceptional service and unmatched quality.

Excellent

Oliver Heating & Cooling

Based on 2488 reviews

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Cindy

Alex S. From Oliver came by today to conduct maintenance /inspection for my Honeywell generator. He was great- timely, professional, helpful and knowledgeable. He also was very patient and informative as I walked him around my equipment asking numerous questions. This is the type of service call that I always hopes for!

John C.

Emily Keiderling did a great job. Professional and friendly, very happy with her performance.

Edward D.

Dylan explained in detail the service he performed. He answered all of my questions. Dylan was very knowledgeable and professional.

John L

New review 04/24/2026:
The old system finally gave out after years of reliable service, thanks to Oliver keeping it running as long as it did. I had Oliver install a new HVAC system, and Ron and Jeffery handled the installation. They did an outstanding job—everything looks great, and no detail was overlooked, very professional job. The system is performing better than any I’ve had in this house before. They took their time, ensured everything was working properly before leaving, and even walked me through how to use the new thermostat. Thank You.

Older Post around nine years ago;
Thank God I switched over to Oliver Heating. Your technician Mike is very knowledgeable and professional and courteous. He picked up on a problem the first time he was here that the other company had missed for years.He always seems to go that extra mile for his customers. And Debra is always so helpful on the phone.You have a great team there Oliver. Thanks.

John L

Marge H.

When we make an appointment for our usual service for our heat pump maintenance, it was done professionally and in a timely manner. When the technician, Tan Mai came (on time) he was friendly, professional and more importantly to us as senior citizens very knowledgable, and he took the time to explain everything to us in a way that we could understand. He also gave us pointers which was very appreciated, especially since our heater/heat pump is 13 yrs old, over the 10 year warranty period. We opted to replace our capacitor (voltage stabilizer) and it was done quickly and we’ll now have peace of mind! We have always had good service on prior occasions but Tan was exceptional! Thank you Olivers and Tan for your continued excellent service!

Bob K.

Nick & Danny are very friendly, professional and knowledgeable. They completed the new water heater service and plumbing in a timely and clean manner.

Joan Z.

Matt was very professional, prompt and courteous!

Thomas M.

Professional , Pleasant, knowledgeable, Efficient.

Yvonne K.

Ryan did a fabulous job servicing our HVAC.

Jack F.

Hello
Tech Domir Mcgurn came out for my AC service call. Cleaned unit all good. Thanks!

John N.

Anthony Levy did an outstanding job servicing our heating and cooling system. He works for Oliver

E C.

The service tech was timely and professional. I could not be more satisfied with the service they provided which is why I continue to use Oliver after many years.

kat R.

Dylan was very thorough and did a great job on my service call.

Kelly G.

Perry Robinson was professional and honest during our maintenance service. Would highly recommend.

Ila P.

This was my first time using Oliver HVAC and I was very impressed. Alex Little, who is a project manager, came to check on my water heater. He thoroughly examined the problem and did the site survey. He explained to me all the details about my old water heater and how badly it was installed with a plastic and metal exhaust pipe and it was against the code requirements. He is very professional and knowledgeable. He took the time to explain to me the process of replacing the new unit with new pvc venting for exhaust. Alex and his team, Tashaun and Anthony did a great job. Tashaun and Anthony cleaned the area very nicely after installing the unit. They were very polite and professional.
Thank you for your exceptional service. I highly recommend Oliver HVAC.

James J.

Perry Robinson came and did our inspection today
He was very professional and informative

Dave P.

I wanted to share about the professionalism and friendliness of Anthony Zuppo, an Oliver HVAC technician. He was very thorough in his work to tune up my AC unit in prep for the summer months. I was impressed with his honesty and “no pressure” suggestion to upgrade my compressor and A-coil since they are approaching end of life and that some of the circuit boards were looking pretty bad from normal wear and tear. I would highly recommend Anthony and Oliver to anyone looking for a quality maintenance structure in maintaining your HVAC equipment.

Nick j L.

Walt O’Brien was super professional and friendly when he came and serviced my HVAC system. Runs like a charm!

Nancy K.

Oliver installed window well covers for us. They look terrific and will certainly do the job. The technician, Dale, did a wonderful job. Oliver has established a high standard in all the work they have done in my home over the years. Another job completed with the same high quality.

Howard M.

Judah was knowledgeable and throughly excellent.

deborah S.

Joe E from Oliver Duct Cleaning - fabulous service, very thorough and good at explaining how things work

David B.

The installation team consisted of Tommy, Clint and a junior technician. Tommy arrived early and we discussed access, set-up, and technical approach. Tommy prepared the area so that when Clint and the equipment arrived, the installation was quickly underway. After the thermostat was placed, Clint provided a clear tutorial of its operation. Clint and I then inspected the installation of the air conditioner and the gas furnace. All of my questions concerning purpose, operation, and maintenance were answered. I appreciate the tips and insight that Tommy and Clint provided. Clean-up was meticulous. Altogether a very satisfying experience for a conscientious homeowner.

Maureen B.

I had my air conditioner services in preparation for the upcoming summer season. I can't say enough about the service that I received. The Technician was great. He was knowledgeable, professional and honest. Mr. Oliver you have a great employee in Perry Because of this great experience I will continue with your company and advise my friends and family to do the same. Thank you again for a great experience.

Chad H.

The service tech was very professional and clearly explained the work performed.

Penny S.

Mike Jensen and his associate are the best. We had a lot of plumbing jobs and Mike knocked them out with great expertise. Extremely personable, polite and efficient. They do not come any better. Five stars, A plus.

Vince D

This is one of those big ticket items for your home, having to replace our 15 year old Heat Pump System, but, eventually, it has to be done. I could not say enough about the work completed by Oliver HVAC Services!

With the initial consultation with Rocco Jr. giving us all the options, costs, and told us about the installation was extremely helpful in making our decision to install a new Heat Pump System. He also return after the installation to assist us in setting up our Wi-Fi thermostat system.

As for the installation technicians they were phenomenal. During the installation Scott, Brendan and Mason insured every step was done with care, was customer centric, and insured it was done with the highest level of professionalism! Overall the installation surpassed our expectations! They were also on time and left the place spotless. They are a 5 star group all around.

Thank you,
Vince & Debbie

George G.

Technician was on time, was knowledgable and very helpful.

Steven J.

Dylan Garrity from Oliver HVAC was a pleasure to work with. He was very knowledgeable and professional. Hopefully he will be my service technician next time. Thank you for great service!!

Susan S.

Domir M - On time and professional

Frank S.

Emily K was our engineer on this maintenance- did our heating and our split heating systems. Quietly efficient. She did a great job.

Elaine B.

Emily was just perfect!! She was kind, thoughtful, helpful, & patiently willing to explan & answer any of our questions. A great hire.

Michael S.

Anthony Levy, our technician, was great. He clearly explained what he did, and then explained to us the reasons to consider a surge suppressor for the system. He answered all of our questions. He was careful and neat in his work.

Elizabeth D.

The technician was on time and professional

Katherine D.

Routine maintenance…went well. Received info re: Auxiliary Heat & Anthony Levy made sure I understood the system! He was patient, knowledgeable, professional & added bonus: a friendly personality! Will request him next time! He is an asset to Oliver!

Ralph G.

Entire Oliver Team was outstanding. On-Time everyday. Worked diligently. Systems was installed to perfection. Updated me every step of the way.

Ronald N.

Mr. Perry Robinson was awesome. He took his time and explained everything as he went along. Very pleasant and knowledgeable. He was on time and completed work in a timely manner. I highly recommend him!! Thanks Oliver!!

Eric W.

Tyrone Gunby III did a great job

Luis F.

Judah Miller was very courteous, punctual and willing to answer all my questions. Very knowledgeable and professional

john H.

Had my annual HVAC service. Fredrick did a thorough review on my HVAC system and my split wall unit.

William R.

Summer prep of heat pump

Antonio F.

The installation of our heating/cooling system went very well. I would not hesitate in recommending Oliver. Not so for plumping. I asked for the replacement of a kitchen faucet and after an hour of huffing and puffin the plumbing employee left and now my facet has the cold water in lugar of the hot water and vice versa