certified company
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.
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.
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.
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.”