The A-1 Handshake.
A family business built on one simple promise: we treat your home like we'd treat our own.
Over 50 years of honest plumbing in Marion.
For more than five decades, A-1 Plumbing has served Marion, Ohio and the surrounding communities. Over that time, we've completed more than 24,000 jobs — from simple faucet repairs to full water heater installations.
We've installed over 4,000 water, sewer, and gas underground service lines throughout the area. That kind of experience means we know the quirks of homes across Marion County.
As an authorized dealer and installer of Rheem and A.O. Smith water heaters, we bring trusted, name-brand equipment to every project — backed by the same handshake promise we started with.
Award Winner
Rated the Best Business in Marion, Ohio for 2026
BusinessRate Best of 2026 — voted by the community we serve.
Why homeowners choose us.
Local Knowledge
We know the common issues in homes built in the 60s and 70s, and the quirks of the local Marion water supply.
Upfront Pricing
You'll know the full cost before we start. No hidden fees, no surprise charges, no pressure to add unnecessary work.
Family Guarantee
We stand behind every job. If something isn't right, we'll make it right. No arguments, no runaround.
Clean & Respectful
We wear boot covers, lay down protection, and clean up thoroughly. Your home is treated with the same care we'd give our mother's kitchen.
Insured & Bonded
Comprehensive insurance coverage on every job. Your home and your family are protected.
Emergency Ready
Plumbing emergencies don't wait for convenient hours. We have a dedicated emergency team available around the clock.
On The Job
Real crews, real equipment, real Marion jobs.
From underground service line excavation to sewer repairs and our fully-stocked service trucks — here's a look at the work we do every day across Marion County.
Meet Michael Jenner.
I started doing plumbing at 22 years old and founded A-1 Plumbing in 1977. Everything I learned came through hands-on experience, starting with digging underground water service lines with nothing more than a shovel and spade. My very first work vehicle was a 1958 Volkswagen Bus.
Since those early days, I've been blessed with a successful business, loyal customers, and a community that has supported A-1 Plumbing for decades. I thank God for every opportunity and for the people who have trusted us in their homes and businesses over the years. Many of our customers have become like family, and their kind words and reviews mean more to me than I can put into words.
None of this would have been possible without my helper, Seth, who cares about our customers just as much as I do. We both believe in treating people honestly, fairly, and with respect — the old-school way. At A-1 Plumbing, we take pride in being a locally owned company that truly cares about the people in our community. We believe in doing the job right, standing behind our work, and treating every customer like a neighbor, not a number.
Michael Jenner
Owner & Master Plumber