Flat-rate plumbing for Mason homes and businesses — from downtown along Main Street to neighborhoods off Mason-Montgomery Road and Tylersville Road. Professional service, no runaround.
Mason grew fast in the last few decades, and the plumbing in those homes is now hitting its first big round of replacements, including pressure reducing valves that have worn out. Our Mason services:
Main line, kitchen, and laundry clogs cleared with professional equipment — and an explanation of what caused it.
Learn more →Tank, tankless, and hybrid heat pump water heaters installed and serviced. Same-day installs often available.
Learn more →Sewage backup in your Mason home? Call right away and we'll prioritize getting a plumber to you.
Learn more →Camera inspection of your sewer lateral, then a flat-rate quote — no digging until we know what's wrong.
Learn more →Visible and accessible leaks — under sinks, at fixtures, on supply lines and water heaters — found and repaired.
Learn more →Repiping and fixture installation — faucets, toilets, showers, disposals, and more.
Learn more →Also in Mason: garbage disposals · faucet repair & installation · bathroom & kitchen remodel plumbing
A few things specific to Mason that affect your plumbing:
Mason's water comes from Greater Cincinnati Water Works, which took over supply and began delivering softened water from its Miller Treatment Plant in 2005. It's softer than the old city water, but it still carries minerals that build up in water heaters over time. If scale is an issue, we can install a water softener.
Mason's wastewater flows to the city's Water Reclamation Plant on Mason-Morrow-Millgrove Road. The pipe from your house to the public sewer is the owner's to maintain — that's where roots and sags cause backups, and where a camera inspection pays off.
A lot of Mason housing went up during the city's growth of the 1990s and 2000s. Original heaters, valves, and supply lines in those homes are now at the age where proactive replacement makes sense.
Water pressure that's too high is a problem we fix often in Mason. When the pressure reducing valve on the main line wears out, pressure can climb or swing up and down: faucets bang shut, toilets run on their own, and supply lines and heaters take extra strain. We check the pressure with a gauge and replace the failed PRV, then set it to a safe level for the house.

We also serve nearby West Chester, Lebanon, and Liberty Township.
More Warren County service areas: Lebanon · Maineville · South Lebanon · Springboro · Franklin · All service areas
Not sure if we cover your street? Call us at 513-540-4575 and we'll let you know.
We're a local company, not a franchise. Every tech who comes to your Mason home is a Queen City employee — licensed, background-checked, and trained by us.
We price the job before we start. No surprise charges when the invoice arrives.
We give you a real window and text when we're 30 minutes out. Your time matters.
Active Ohio Plumbing Contractor License #50644 and an Indiana Plumbing Contractor License #PC12400229 with full liability and workers' comp coverage.
All workmanship is warranted for one year. If it fails, we come back at no charge.
Yes. Banging pipes, running toilets, or pressure that jumps around often point to a worn-out pressure reducing valve. We test the pressure and replace the PRV for Mason homes.
Yes — all of Mason plus nearby Kings Mills and Deerfield Township. Call 513-540-4575 to check availability for your address.
The City of Mason says Greater Cincinnati Water Works supplies water to all Mason residential and business customers, and GCWW handles Mason's utility billing.
Yes. Queen City Plumbing is on the Warren County Health District's list of plumbers registered for 2026.
During our posted hours — Mon–Fri 8am–7pm and Sat 9am–1pm — sewage backups, burst pipes, and leaking tanks in Mason get priority scheduling, and same-day replacements are often available. While you wait: if a pipe is leaking, shut off your main water valve (usually where the water line enters the house, often in the basement near the meter) by turning it clockwise. If the tank is leaking, close the cold-water valve on top of it and turn off its gas supply or breaker.
Call for a free estimate or request a quote online — Mon–Fri 8am–7pm, Sat 9am–1pm.