Oliver Heating, Cooling, Plumbing & Electrical
5th year as a Best Pick
certified company
A
rated
Based on 364 reviews
Our Certification Process
Best Pick Guarantee
Verified License(s)
Verified General Liability Ins.
Verified Workers' Comp
5th year as a Best Pick Call
"Oliver continues to differentiate itself through its unique positioning, strong history, and ongoing commitment to providing superior and unparalleled customer service. As a character-based company, we not only stand behind our work, we give back to our community. Your peace of mind is our first priority."

David Oliver | Owner
Company Information
Services Offered
Oliver provides comprehensive plumbing services, including toilet repair and replacement, water heater repair and installation, sump pump and water filtration services, drain cleaning, and gas and water pipe repair. There are no residential overtime fees.
Warranty
Oliver honors manufacturers' warranties and offers tank, parts, and labor warranties of up to 12 years for water heaters. The company offers a warranty of up to two years for general plumbing repairs.
Company History
Since 1971, the second-generation, family-owned company has served customers in Pennsylvania, Delaware, and New Jersey.
Distinctions
Oliver is a member of the Water Quality Association and the Plumbing-Heating-Cooling Contractors Association.
Additional Information
The company installs a variety of water heaters by Rheem and Bradford White.
Licenses
PA005379
Areas Served
Montgomery County, Chester County, The Main Line, Delaware County
A selection of 364 homeowner reviews:
“I have used Oliver for my A/C and heating systems for years. This time my hot water heater went at two o'clock, and I had it completely replaced before four o'clock—terrific.”
“Oliver continues to provide excellent service on all our needs regarding heating, air conditioning, and plumbing. I have recommended Oliver on several occasions to people needing service.”
“Amazing company. I would recommend them to anyone in need of any kind of service, emergency or regular maintenance—A+.”
“We have used Oliver for quite a few years, and their service is very good. Techs are very knowledgeable, and they are pretty true to their schedule. If they need to reschedule for any reason, they call in advance and let you know—A+.”
“Technician very friendly and professional. An asset to the company.”
“The technician was courteous, professional and efficient.”
“They're pretty friendly, and they help out. They don't waste your money or your time. Last time, they came out for a plumbing inspection and to fix a drain. I do have a service agreement with them, and they did it a couple of times before. I have the plumbing and electrical with them. I would recommend them to family and friends. I'd give them an A+.”
“We always have a good experience working with Oliver. They come in, and they get right to what they're doing. If something does go wrong, you call them, and they come back. It works for us. They do an inspection. We belong to a couple of their plans. They come in and install new receptacles. I don't remember all the stuff they do. Basically, we have them go through the house. I understand they're going to find something no matter what, but there is no pressure on you to get it done. Usually we do because it's to our advantage. We set a time, they come back, and they do it. We've had them for plumbing, and they've serviced our air conditioner. We've been using them for more than five years. We've used a lot of other electricians and plumbers in the area, and we're just pleased with Oliver. They're an A.”
“They're pretty good, and they're pretty prompt about getting here. They work on our furnace and check our air conditioning. They put a new furnace in and a new hot water heater. I have been using their services for a long time. I'd give them an A.”
“He knew what he was doing, he was on time, and he was very professional. He came and replaced a 50-gallon hot water heater. We have a service agreement with them. We get our air conditioner maintenance service every year. I would recommend them to family and friends if they lived out here. I'd give them an A because they were fine.”
“They did it within the time frame they said they were going to do it in. They were fast, and they were accurate with the estimate. They did an installation of a kitchen faucet. I've used them in the past. One of the plumbers that I had been using purchased Oliver, so I just went to them. I would give them an A grade.”
“They're friendly, they appear to know what they are doing, and they get the job done. They put in a new hot water heater. They also do seasonal maintenance for me. I don't remember how I heard about the company originally—it's been years. I recommend them, and I'd give them an A.”
“Everything was easy and smooth, so it was fine. They brought in a water heater for me. I'd rate Oliver as an A-level company.”
“They were very, very pleasant. They had very pleasant people working for them, and they got the job done. All was good. They had to put a new piece in under the sink where the little faucet had broken off. He was very efficient. They did it fast, and they did it well. I think I first heard about them through my neighbor. One of the other condo owners had recommended a local company, but in the meantime, that local company had been bought out by Oliver. It was kind of a roundabout way, but that is how I found out about them. I would recommend them to others. They're an A.”
“It was straightforward. They replaced some old valves. It took a few hours for them to complete the job. I would give them an A-.”
“They're pretty prompt, and they do the job. They've been reliable. We've used them for years. The most recent thing they've done is a plumbing repair. It was a pipe in the bathroom. I chose them over a different company because they put the heater in the house that I live in. I'd give them an A-.”
“Oliver was on time, and they knew what they were doing. I was very happy with them. They put in a new water tank. They've done a lot of work for me. I've been using them for about a year and a half. I'd give them an A+.”
“Oliver is prompt, and they are accurate in diagnosing problems. They fix the problem quickly, and they're polite. They have done heating, air conditioning, and water heater work in the past. We would highly recommend them. They get an A+.”
“I always have a good experience with Oliver. They're very good at their jobs, and they're neat and clean. I can't say enough about them. I'd say they're an A+.”
“I liked the professionalism of the men and their expertise. They fixed a bathroom leak. I've been with Oliver for 20 years. I would certainly recommend them, and I'd give them an A.”

We've been very happy with Oliver. They're very responsive, their employees are very knowledgeable and personable, they clean up after themselves, and the equipment that they service works well. I would give them an A.

I would give them an A. They replaced a toilet for me, and that's about it. I thought their service—and their customer service—was excellent, and they cleaned up after themselves when they were done.

Their service people are always on time, and they're very polite. They're considerate of your home; they make sure they cover their feet. If they're muddy, they clean up after themselves. Very pleasant people to deal with, and it's easy to get appointments. They've been coming to my house for ten years, probably longer. They installed our air conditioning system, and they provide the yearly maintenance and any repairs that need to be done. They've done even more plumbing for us. They're an A.

The work was just fine. The workers, service—everything was great. They did a very nice job overall. No complaints, so they should get an A.

They did a very fine job. They replaced our air conditioning and heating system, and then they subsequently did a plumbing inspection, but that was minor. They did an excellent job, and they cleaned up after the work. They're an A.

Perfect—it's always perfect with Oliver. They're highly skilled people that care. Their customer service is perfect. You can't get any better than them. They're A-grade.

I've had Oliver for 12 years—a maintenance contract. I've never had anything but good experiences. They just come out and do system checks and repairs if necessary. They come out twice a year. They're an A, at the top.

First of all, they're very reliable. When you call them, they come out right away. The work that they did was excellent, and they cleaned up. Everything was just as it was when they got here. The workers that came out were very personable. I have used them for plumbing and for heating and cooling. All times that I've dealt with them, they've always been excellent. They're very good. I give them an A+.

I think Oliver's people are always polite. We have a contract with them, and I think they are able to give us appointments in a timely way. In general, they do fine work.

I rate them very highly. They're dependable; they come when they say they're going to. Their quality of their work was good. We've had them do plumbing and heating for us; they installed a new heating and air conditioning unit two years ago. The plumber that we used, he joined Oliver—that's how we got on with them for plumbing, but we've always had them for heating. They do our maintenance agreements. I would give them an A.

My experience with Oliver was excellent. They're very professional, they arrive when they say they're going to arrive, and they leave a clean work area. I would rate them an A+.

I would grade them an A. They're on time, they're clean, they're neat, and they're thorough in their inspection and their write-up.

They replaced the hot water heater in our home. The quality of the work was great, and they have good customer support. They knew what they were doing. I would give them an A.

My wife was pleased with the service; it was good. They were conscientious, professional, knowledgeable and friendly. I'd say they deserve an A.

They're an A grade, excellent. They participated in building my house, and I've used them ever since. They follow through on everything, and they deliver.

They're responsive, and they do what they say they're going to do. Their estimates are clear, and their service personnel know what they're doing. They're technicians are professional. I'd give them an A.

I'm happy to say it's always a good experience with Oliver, and I have never had any problems. Their employees do a good job; I'm happy with them. I would give them A. No complaints.

I wouldn't use anybody except Oliver. We've used them for about eight years. They're neat and clean, polite, courteous. They did another job about six months ago. They came to do a plumbing checkup. Their customer service is excellent, and the quality of their work is excellent. Whatever has been done, we've never had a problem afterwards. They're an A.

The gentleman who came out was very helpful and did the work that was required. I called them out for what I thought was a plumbing problem. It turns out he knew more about it than me; it wasn't a plumbing problem—it was a dishwasher problem. There was a valve that wasn't opening to let the water into the dishwasher. He knew what he was doing. Then he inspected all the plumbing because I had just taken a plumbing contract with them. They get an A, I would say.

They're always on time, and they're very professional. I will absolutely keep using them. They're excellent—no complaints. They should get an A.

I've actually been using Oliver for years. They have good customer service. I would give them an A.

They were very good all around. They do general maintenance for me, and I have a service contract with them as well. They're true to their word, and everything's just taken care of as it should be.

They came out, and they looked for a leak in my home. The service was fine. They get an A.

We've been very happy with everything they've done for us. Two and a half years ago, they installed a new boiler in our house and a hot water heater related to that. We have a service contract on that, a service contract on our air conditioning, and a service contract on our plumbing. I think they're very responsive, very polite, and respectful when they're in your home. I'll give them an A.

I have worked with them multiple times. What makes them so great is that since the first work they did, they've always provided high-quality workmanship for us. They put in air conditioning, heating, and did some plumbing stuff for us. They've done a lot of things for us. The technicians that have been sent out are very good, very personable, and the customer service is very good. They get an A.

We get excellent service from Oliver. They're dependable, they're reliable, and all the servicemen are very polite—they even put their little booties on before they come in the house. I would rate them A+.

I've been dealing with Oliver for quite some time, and I'm always satisfied. That's why I renew my service contract every year with them. When they say they're going to be here, they show up. They're very careful in my home, they tidy up, and they either don't make a mess or they clean up whatever mess they do have to make. They're in and out without any nonsense—they do what they have to do, and that's it. The serviceman was very polite, very careful around my house, and he explained things to me that I should know. I was very grateful for it. I will renew my contract with them as long as I'm here on this earth. An A grade for Oliver.

I'm always really happy with them and their work. They're friendly, knowledgeable people who don't waste time. They come in, do the work, and then they're finished and it's done. Their customer service is excellent. I would grade them an A.

They are excellent; I'm very happy with them. They're professional, they explain things—they're just great. I use them for plumbing and air conditioning. I'm actually expecting a repairman from them this morning. The last time I used them was for plumbing, but today they're coming for the air conditioning. I think they're very high quality. My neighbor also uses them, and she thinks they're high quality as well. They clean up after themselves when they're done. I'd definitely give them an A, and I tell all my friends the same thing.

They were very pleasant, and I liked that they wore little booties to keep everything clean and gave me good information when the work was finished. I'd use them again. I would give them an A.

My wife was happy with all that they did. She chose them for our plumbing, heating, and cooling contracts. I was here when they installed a few things for us, and the quality of their work was excellent. I would grade them an A.

They put in a new laundry tub, fixed my garbage disposal, and put on a new faucet head onto my sink. It was very good. They were just very helpful; they did exactly what I needed them to, and they were nice. They did finish the job in a reasonable amount of time. I would give them A, and I would use this company again if I needed to.

They were good. I have contracts with them—annual contracts for heating and air and plumbing. Whenever I call, they come here almost immediately. When you have a contract, you come first before anybody else. A couple weeks ago, I had a leak in my bathroom, and it leaked down to the floor to the basement. I didn't discover it until one o'clock in the morning. I called the plumber because he had just been here the week before and checked everything out. He came out at two in the morning. They come out once in the winter and once in the summer for the heating and air. The people that come in to do the work are excellent. They're very nice, they're very considerate, they put the little booties on, and they're just really good. I feel comfortable as a woman with them in the home; I have no problem with that. They're an A.

They did a great job. Last, I had a plumber come and fix a drain that was running, a leak in the pipe in my sink. The job was completed. When I first used them, my heat wouldn't work, and the guy thought I needed a new thermostat, so he was telling me how much it was going to cost. When he went in, he found that it was just disconnected, so he connected it back. He could have charged me for a new one because I wouldn't have known, but he just did that quick little fix and that was it. He just had to snap something that had come loose on the plumbing. He does good, quality work. I don't have any complaints. They're an A, because I do plan to use them again. Actually, I'm about to call them to come and clean out my vents.

Overall, it was absolutely a positive experience with Oliver. We think they're fantastic, they're great. They always come out when we call them. If we have an issue, they fix it right away. I've been using them for five and a half years. I keep calling them back because they do a great job. They don't have any issues; nothing comes up that they can't handle. They're very competent and very professional. They always know exactly how to fix whatever is not working properly. Definitely an A.

I had a positive experience with Oliver. They were very good. They did the heating and the plumbing. They were efficient, they were neat and tidy, and they came out on time. I would give them an A.

We had some repairs to our water heater. They were responsive, and they were very descriptive about what the issue was. They were prompt to address it. I would say an A; we had a good experience.

They did some work for us in the past. We absolutely love Oliver. We've had a lot of problems with our complicated heating system, and they are very responsible and respectful. They always show up on time and they get back to us when we have questions or when we need to schedule. Our children love them and know them on a first-name basis. They've done a lot of work for us in the heating and air conditioning and plumbing departments. They're one of the first contractors we've had in the house that, if they see another problem not related to them, they'll tell us. They've done a lot of work for us in crawl spaces. We definitely are happy with them. They're our third heating company. Oliver seems to know and understand our complicated system, and other companies don't; they're able to handle all of it. We have steam heat, radiant floor heat, forced hot air heat, and high-velocity heat. They're able to take care of all of that, and they're very knowledgeable in every field. I would give them an A. We love them; we're on a first-name basis with them. We've had a lot of problems with it, but they're part of the family. They're one in a million. I can't say enough good things about them.

They've done a couple jobs for me; they installed a water heater last winter, and they also installed an air conditioning system. Both times, they did excellent work. What stood out for me the most about Oliver was their professionalism and their willingness to work with the customer to meet their needs. I found that very appropriate. Everything went very well. They came in and they made sure not to dirty my property up. They took pains to cover their feet, to clean up after themselves. They just did an excellent job. I'd recommend them highly to anybody. I'd rate them an A.

The last time they were here, I guess it was for heating. My hot water was not working. I like them a lot; they seemed to be responsible, know what they're doing, and do good work. I think the experience that I had in the past would make me go back to them. I would give them an A.

I've used several different plumbers. The last one I used was Oliver. They maintain our heater and air conditioner and then they do some plumbing work on it—a pipe that we were having some challenges with. They were just here in the spring for the air conditioner. It was just one guy. I would rate him an A. They don't do all my plumbing; they do mostly the air conditioner and heater—that's how I actually started with them on my air conditioner and heater. They were the only plumber that responded when I needed a plumber, so that's how I got started with them.