San Antonio is home to more than a million households historic Alamo Heights bungalows, mid-century Southside ranch homes, sprawling Stone Oak estates, and everything in between. O5 Plumbing handles the full range with the same veteran-owned discipline: flat-rate pricing, licensed technicians, and work you don't have to call back to fix.
San Antonio's housing stock spans more than a century and every era brings its own plumbing realities. Homes on the city's historic Eastside and Southside may have original cast iron drains, aging galvanized supply lines, and undersized fixtures from decades past. Newer suburbs in the north push different problems: hard Edwards Aquifer water hammering appliances, builder-grade systems hitting the 15-year failure window, and rapidly expanding household demands on undersized water heaters.
O5 Plumbing is based in San Antonio 10801 Nacogdoches Road and we know this city's plumbing from every angle. Whether you're in a 1940s craftsman near King William or a new build in Helotes, we bring the same standards: licensed technicians, flat-rate pricing, and work we guarantee 100%.
We're not a franchise routing calls from out of state. O5 Plumbing is a local company operated by a San Antonio veteran. When you call, you reach us directly.
Historic Southside cast iron, 1980s copper, early 2000s PVC, brand-new PEX we work in all of it, every day, across the entire city.
San Antonio traffic is real. We dispatch locally so we can actually get to you on the same day not promise it and miss.
A discount is available for active duty military, veterans, and first responders. San Antonio is a military town and this discount reflects that.
Full-service plumbing for San Antonio homes and businesses. Flat-rate pricing, 100% satisfaction guarantee.
From the River Walk corridor to the Hill Country suburbs, we cover the entire city.
King William, Lavaca, Beacon Hill, Monte Vista San Antonio's historic districts have character and age in equal measure. Aging cast iron and galvanized lines, slab foundations prone to movement, and older fixture configurations all require a plumber who understands the territory.
The city's northern suburbs Stone Oak, Shavano Park, Hollywood Park, Helotes serve a mix of upscale and mid-range homes where hard water damage and water heater failures are among the most common service calls we receive.
Older neighborhoods on the Southside and East Side often have cast iron drain lines approaching or past end of life, and galvanized supply lines that restrict flow and harbor rust. We perform camera inspections, targeted repairs, and full repiping for homes in these areas.
O5 is a San Antonio company not a call center routing you to a subcontractor. Eric Keigher is a licensed Texas Master Plumber who built this business here and stands behind every job personally.
San Antonio homeowners have been burned by hourly billing that spirals and surprise charges that appear on final invoices. Our flat-rate model eliminates that entirely you know the price before we touch a wrench.
358 five-star reviews. 100% satisfaction guarantee. We stand behind our work because we do it right the first time and if something isn't right, we come back and fix it. No arguments.
"I've used three plumbers in San Antonio over the years and O5 is the only one I'll ever call again. They showed up exactly when they said, quoted a flat price before touching anything, and the work was done in two hours. My old plumber used to bill hourly and somehow always needed more parts. Never again."
"Had a slab leak under our kitchen. O5 found it with their equipment without tearing up the whole floor, explained the repair options clearly, and handled everything within two days. The repair has held solid for nine months. Honest, competent people the combination is rarer than it should be."
"O5 installed a water softener and tankless water heater for us last year. We have hard water issues like everyone else in San Antonio, and the difference has been immediate appliances run better, our skin feels different, and we've stopped buying bottled water. Veteran-owned and it shows in how they treat customers."
Same-day service across San Antonio. Flat-rate pricing. 100% satisfaction guarantee.
(830) 293-4141