certified company
Based on 144 reviews
Our Certification Process
Best Pick Guarantee
Verified License(s)
Verified General Liability Ins.
Verified Workers' Comp
1st year as a Best Pick Call
"Jamison is an authorized GrateProducts contractor, which includes exclusive access to innovative products, comprehensive training, and continued support from the manufacturer. We offer a patented, closed-basement drainage system installed by certified technicians."

Frank Jamison | President
Company Information
Services Offered
Jamison Basement Waterproofing offers foundation repair and basement and crawl space waterproofing services for residential and commercial customers. The company's additional services include installation of sump pumps and battery backups, egress windows, French drains, drainage systems, and downspout extensions. Jamison also provides moisture control services and dehumidifiers.
The company offers a transferable limited lifetime warranty. Restrictions may apply.
Company History
Jamison was founded in 2006, and owners Frank Jamison and Patricia Jamison-McNamara have been in the industry since 1989.
The company is a member of the Basement Health Association (BHA) and employs a BHA Certified Waterproofing Specialist and Certified Egress Specialist. Jamison is a GrateProducts Healthy Basement Contractor and Healthy CrawlSpace Contractor.
Areas Served
Montgomery County, Chester County, The Main Line, Bucks County, Delaware County
A selection of 144 homeowner reviews:
“Jamison is the best. I think they're wonderful. They did a fabulous job, and I would highly recommend them.”
“They did basement window wells. They fixed the problem I had, so I liked them a lot. They did a great, neat job. Everything was smooth sailing—perfect. I would recommend them highly for anyone doing a basement job. They're A+.”
“They did some waterproofing work in our basement. They were extremely responsive, and they had a high level of work quality. They were all very friendly and very respectful of our house; they were very clean. I'd give them an A+.”
“We absolutely had a positive experience with Jamison. I love them. It was excellent, and I would recommend them.”
“It was fantastic. They installed a French drain. They get an A+.”
“They put in a wall in the basement side. There was definitely water there. They came out to waterproof. I worked with a professional person. I would give them an A+, but they were not perfect.”
“They did a full perimeter French drain in my basement. I'd give them an A+. It was very clean. I've already recommended them to a couple of people. I liked their knowledge and the products they used for the French drain. When they presented them to me, it was far beyond what the other companies had given me an estimate for. The products they were using were far superior, which sold me on the going with Jamison.”
“They were great. They were awesome. They waterproofed the basement. They had to dig the outside wall out and put a line in. They were prompt. They were friendly. Everything about it was great. I wish all other contractors could be like that. I'd give them an A+.”
“I believe we had a sump pump put in. Everything's fine, and it was a nice guy who did it, so we're happy with the job. I'd give them an A+. I would highly recommend them.”
“Jamison did some waterproofing work. They were very methodical. They were very clean. They did the job beautifully. I have no complaints. I'd give them an A+.”