Oliver Heating, Cooling, Plumbing & Electrical
6th year as a Best Pick
Best Pick 2018
certified company
Based on 244 Surveys
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Compiled Score: star star star star star
Oliver Heating, Cooling, Plumbing & Electrical has received 5 out of 5 stars (A-rating) based on 244 customer surveys conducted by Best Pick Reports.
6th 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 offers a wide variety of electrical services, including fuse panel to circuit breaker conversions and upgrades, knob and tube replacement, and network cabling. The company specializes in whole-house surge protection and backup generator systems. There are no residential overtime fees.
Oliver honors manufacturers' warranties and offers up to a five-year parts-and-labor warranty on newly installed equipment and a two-year repair warranty on parts.
Company History
Since 1971, the second-generation, family-owned company has served customers in Pennsylvania, Delaware, and New Jersey.
The company employs one Master Electrician, and other technicians are trained in the National Electric Code.
Additional Information
Oliver installs Cummins, Generac, Eaton, Kohler, and Honeywell generators.
Areas Served
Ambler, Collegeville, Glenside, Harleysville, Lansdale, Norristown, North Wales, Pottstown, Royersford, Coatesville, Downingtown, Kennett Square, Phoenixville, West Chester, Bryn Mawr, Malvern, Philadelphia, Wayne, Broomall, Havertown, Media, Springfield

“We used Oliver for a lot of different things. In general, they do a great job. They have done some electrical and plumbing jobs for us—installed heating system and installed a water heater. I would rate the overall experience with an A. I would extremely likely to recommend them.”

“They are very nice and explained everything to me. They put in a new heater, new water heater, electrical work, a lot of work in my house. I would grade the overall experience with an A+. I was very pleased with them. I would highly recommend them, and have recommended them to a lot of people.”

“We've been working with them for a long time. And they just do a lot of stuff. We just consider them our plumbers. We have maintenance agreements for the heating and air conditioning, and that's been going on for a long time. We're pleased. They do electrical work. They put in a lot of high hats for us. They changed the boxes outside, inside and updated many of our wall switches. They deserve an A+ grade. They are responsible. They are immediate.”

“Everything's fine. I have no problems. They are the ones who installed my entire system. I like their immediate response. They did the duct work and the furnace. They have done electrical and plumbing work in the past. Had problem with circuit breaker and they fixed that. They deserve an A+ for the overall experience. I would highly recommend them, and have recommended them to several people.”

“They have done heating and cooling and electrical work for me. I've been using them for years. I like that they get there when they supposed to and do what they suppose to do. I would grade the overall experience with an A+. I would extremely likely to recommend them.”

“My experience with Oliver has been excellent since the beginning. They've done all types of work and installation and maintenance. I'd give them an A overall. I don't have any problems whatsoever with them. I would very much recommend them—If anybody asks me, I would.”

“I have a contract with Oliver for heating and plumbing. I like that they're on time and they're good at what they do. They've done heating and air conditioning maintenance, plumbing maintenance and electrical work. I'd give them an A overall. They've been great across the board. I'm very likely to recommend them.”

“They're competent. They have very good solutions and they have very competent people implementing them. I use them for heating, air conditioning, electrical, and plumbing. I've used them to clean my vents; I use them for everything. I'd give them an A+ overall. They put all new wiring outside and an all new box. They're very good. I'm very happy with them. I recommend them all the time.”

“Oliver Heating was very neat and clean and efficient. They did multiple jobs for us. They did the A/C and heating. They've done generators and everything. I would grade the overall experience with an A+.”

“They have done heating and cooling and electric; those have been the most recent. I'd give them an A+ overall.”

“Oliver Heating is very good, and we've used them over 20 years. They have done HVAC work and electric work. I would rate the overall experience with an A+.”

“I liked everything about Oliver Heating. They do our air conditioner, our heater, and various other things like electric work and plumbing. I'd give them an A+ overall. Everything's fine. There's no issues.”

“It was fine. They did some electrical work. This is the first time I've used Oliver Heating. I would grade the overall experience with an A. I would likely recommend them.”

“Oliver has been an outstanding service provider for the ten years I have been using their services. I have used their services for heating, air conditioning, plumbing, and electrical, and they have always been prompt and professional in all the work they have done.”

“Excellent company. Great work and service.”

“Always friendly, helpful, and thorough. We enjoy working with them.”

“They have never let me down. Oliver people are polite and competent. I am glad to have them available—A+.”

“The technician was excellent. Professional and punctual.”

“I am very pleased with their service—A+.”

“Wonderful service since installation ten years ago.”

“He was thorough and helpful.”

“Oliver did a fantastic job, and I was very satisfied with them.”

“We love Oliver, and we use them for a lot of different jobs.”

“They were on time. They called when they were coming, and then they were very knowledgeable of the situation. They identified why we didn't have electricity in part of the house. We've used them for many years. They're an A+ company.”

“They're friendly and courteous, and they get the work done on time. They do my routine maintenance. I've been using them for about two years now, and they've earned an A+ grade.”

“They did electrical work. They conditioned the generator to make sure it worked. There were no problems, and I did not have to call them back. I would recommend them, and I'd give them an A.”

“My husband was here when they came; he said they were nice, and they took care of the problem. I'd give them an A.”

“Oliver was very good. We were very satisfied with their services.”

“Everything is good.”

“I always have a positive experience with Oliver. They're always very efficient and very professional.”

“I liked that they came out promptly and got the job done. I think the last thing we had them do was take a look at our dryer, and they determined that we needed a new part. They came out and installed it. I'd give them an A.”

“Oliver absolutely did a fine job. They're good, and I've never had any problems with them.”

“I love Oliver, and I recommend them all the time. They give excellent service—the men are so polite. They put in a new heater and air conditioner that they service on an annual basis, and they cleaned my air ducts. I'd give them an A, definitely.”

“Oliver shows up quickly, and they get it fixed the first time. They diagnosed and fixed the issues very quickly. I'd give them an A+—everything is working fantastically.”

“Oliver was very, very nice and helpful. They found the problem right away and fixed it for me. The whole experience was very, very nice. He was polite and clean—he insisted on putting these little booties on. I was very pleased. I'd give them an A+.”

“Oliver gave courteous, professional, and prompt service. I'm on contract with them for my heater and air conditioner. I have recommended them to others, and I'd give them an A.”

“They did an excellent job. They replaced a socket in my home. The whole experience was good; plus, they were nice guys. Everything has generally worked out for me. I'd give them an A.”

“They deserve an A. As far as I'm concerned, they're the top. In the past, they've handled both electricity and heating and air. There's not really any way I feel they could improve, as far as the service and everything we've had with them. I've been completely satisfied with their service.”

“They did a home inspection of our electrical system and looked at possible repairs. We have a maintenance contract with them as well. I get the feeling they're honest, so we trust them, because I don't know the first thing about HVAC or electrical. They call, they show up when they're supposed to show up, and they do their job. And it has worked; they haven't had to come back. They deserve an A.”

“I've done work with Oliver. They're good, and I like their service. I like working with them because they are honest. There was an electrical problem in the foyer that they had to take care of, and they did good with that. I'd give them an A.”

“We've used Oliver for quite a number of years. I have a contract with them now to maintain our HVAC system, and additionally they did some electrical work for me on some of our ceiling lights recently. I'm extremely happy with their service. I would give them an A++.”

“Oliver did some electrical work for us. It was great—no problem whatsoever. They did wiring in our home. They were excellent guys—one in particular was extremely positive. Highly, extremely positive.”

“The people at Oliver are just great. They come out when they're supposed to, and they've never let me down. They're organized and neat. They put in a new electrical cable, a new hot water heater, and they maintain my heating and cooling. On all parts it's been universally positive; no problems at all. I wish I could clone them for my other services. They come out when they say they're going to. If you call, they're there.”

“Outstanding. They did some electrical work for us several months ago that was really terrific, and we're really pleased with that. They fixed a light on the outside garage, they added some lighting in a large closet, and they added two light fixtures and had to pull all the wiring for that. And then they also added two floor receptacles. From an electrical standpoint, everything has gone well. I couldn't be more pleased.”

“Oliver did one small job for me. The electrician was in and out. He came in, took a fan out, and that was it. It was a job I had to have done right away, and they were accommodating. I haven't had to call them back. I'd probably give them an A.”

“Oliver has done it all for us—heating, air, and electrical work. They've never let me down or given me a reason to make them come back. They get an A.”

“I had a good experience with Oliver Heating. The guy was straightforward and prompt with his work when he came out. I had them rewire a room in my house. They were good guys, excellent. I would use them again in the future for my electrical work; I plan on it. Since there were no problems, I'd say I would rate them an A.”

“I'm very satisfied with what they do. Actually, last year there was heating and electric work I had them do; in the prior year they had done plumbing for me and also a hot water heater, but I haven't had them back lately. It's always been a positive experience. I would give them an A.”

“They've done everything for me—heating and air, electrical—and they put a new water heater in. They're real nice and polite, and they answer your questions and tell you what's causing the issue. There have been no disappointments, none at all. It's been a positive experience with everything they've done. They deserve an A, excellent.”

“We use them for everything—the electrical, the plumbing, and the heating and air conditioning. First of all, we feel it's very convenient to have all of that under one umbrella, and the people are very nice, very helpful, and I've found them to be very honest. I would grade them A.”

“We liked the service with Oliver. They did good work, and this last visit is actually the second time they did work for us. They did some work for us about a year and a half ago, and we're really happy with it. The guy was quick and he was efficient and very pleasant. I couldn't have asked for too much more. They get an A; I'd give them an A, definitely.”

“I'm very happy with any service Oliver's done for me. We had three projects in the past year—water heater, electrical, and plumbing. My overall impression of these guys is positive. The people who come out are very courteous, do their job, do it well, and clean up after themselves, so I never have to worry about that. I would give them an A, no problem. I recommend them all the time.”

“They installed an attic exhaust fan, and then they put a new ceiling fan in one room that didn't have one. They came back the following week and redid my electric service panel and put in a whole-house surge protector. Their quality of work was excellent. They were top-notch—I wouldn't have had them back the second week if they hadn't been. There were two of them the first week, and one of them came back the second time to do the electric panel. They were very professional; they cleaned up nicely after they were finished, and they told me what they were doing and answered my endless questions. I've recommended them actually to my neighbors. I wouldn't hesitate to recommend them to anyone. They're an A.”

“It went perfect, flawlessly. They did was electrical work; we had to move some light switches and some outlets. I haven't had to call them back to fix anything.”

“Everything went extremely well with Oliver. I like that they're prompt in getting scheduling, they arrive on time, and they take the time to carefully do the job. There's a high degree of quality, and I have a lot of confidence in them. They've done electrical, and they're the primary contractor for my maintenance contract on my boiler. In both of these fields, it has always been universally great; I'd give them an A+.”

“Oliver was fine. They did electrical work for me. I had a renovation—an addition to the basement—and they did all the electrical work. It was a positive experience overall. They just were good. They came in, they knew what to do, they were very friendly, and they were very helpful. I'd say they deserve an A+; they were good.”

“Overall, I had a positive experience with Oliver, very much so. They did a great job. They're very courteous. We had some electrical work done with them as well. For the air conditioning service, they came in and just checked the condensing unit to make sure that was running properly. They cleaned out some kind of drainage pipe down in the basement for the A/C unit. They performed a preventative maintenance. For the electrical service, we got an entire new electric service put in outside—new meter box, new breaker box—and that went great. The electrician was here before; we had a minor electrical problem which he fixed, and then the same electrician came back to put in new service. He did a great job and was very courteous. He just did a great job. Everything is holding up great. We have a service contract now with the A/C and the heat, and also for the electrical service now. I would give them an A, absolutely.”

“They've done work for me in the past. First of all, all of the people that do come to the house are dressed appropriately and are well-groomed; you feel comfortable with them. That's the important thing. I do feel comfortable when the workmen come to the house. Their quality of work is excellent. I'm very pleased; everything about them is excellent, and I've been with them since 2005. They're an A.”

“They're good. They're a good company. They do good work and we've had them for years. Their professionalism and their response to emergencies stands out. They have good customer service when they come out, they finish the work in a reasonable amount of time, and they clean up after themselves as well. They're an A. I would recommend them to someone else.”

“They were terrific. You just call and arrange for an estimate and a review of what the need was. We had them put in a whole house generator. The customer service was excellent, but there really wasn't much of a challenge to that. They were very polite, very friendly, and they made follow-up calls. I thought it was excellent, but I didn't have to really use a service department. It was their insulation people. They were incredibly prompt. They were there within five minutes of when they were supposed to arrive, to either give us an estimate or to do the installation. They cleaned up after themselves. I would say A, excellent. I absolutely would use that company again, and I would recommend it to friends.”

“We just have routine maintenance for the heating and air conditioning. They always seem to do a pretty good job, they seem to be on time, and they have some knowledgeable people. I'd say I would give them an A, I guess. I've always been pretty pleased with them.”

“They diagnosed the problem and repaired it. Everything went fine; they responded quickly, they identified the problem quickly, ordered the part, and replaced it within a reasonable period of time. I had no problems, no complaints with them. I'd give them an A.”