O5 Plumbing handles the full range of residential plumbing from routine maintenance and repairs to complete repiping and gas line work. Veteran-owned, flat-rate pricing, and same-day service available throughout San Antonio and surrounding communities.
Acoustic and thermal leak detection for hidden leaks, slab leaks, and burst pipes. Non-invasive location before any cutting.
Licensed gas line installation, extension, repair, and pressure testing. BBQ hookups, appliance connections, and new runs.
If you smell gas, leave immediately and call CPS Energy at 1-800-870-1432 , then call O5. We respond to gas leak emergencies throughout the service area.
(830) 293-4141Honest Work Quality Materials Fair Pricing
Tank and tankless water heaters repair, replacement, and installation. Ask about current water heater offers and financing.
Jam clearing, leak repair, full replacement, and new installation. Same-day service available. Honest diagnosis before any recommendation.
Dripping faucets, running toilets, leaking supply lines, and fixture replacement. Kitchen, bathroom, and utility fixtures serviced.
Running toilets, fill valve and flapper replacement, wax ring service, and full toilet replacement. Comfort height and high-efficiency models available.
High water pressure damages fixtures, valves, and appliances. We test, adjust, and replace pressure reducing valves (PRVs) to protect your plumbing system.
Section repairs, joint repairs, and pinhole leak fixes in copper, PVC, and CPVC supply lines. We repair the source not just the symptoms.
Professional drain cleaning with hydro-jetting up to 4,000 PSI. Kitchen, bathroom, main sewer, and floor drains. Ask about current offers.
Sump pump repair and replacement, drain maintenance programs, and sewer line cleaning. Preventative service before problems become emergencies.
Waterproof camera inspection of sewer and drain lines. Locates root intrusion, pipe cracks, offsets, and blockages. Essential before home purchase.
Full home repiping in PEX or copper. Recommended for homes with galvanized steel, polybutylene, or chronically failing pipes. Upfront project pricing with no mid-job surprises.
Rough-in work for remodels, addition plumbing, fixture installations, and supply/drain reconfiguration. We work with your contractor schedule or independently.
Whole-house water softeners, reverse osmosis drinking water systems, and whole-house filtration. Essential in San Antonio's very hard water market.
New gas line runs, extensions, appliance hookups, and outdoor kitchen connections. Licensed and permitted. Pressure tested before sign-off. See our Gas Line Experts page.
Submersible and jet pump repair and replacement, pressure tank service, and well system troubleshooting for properties in Comal County and surrounding rural areas.
We serve small commercial properties, offices, and multi-unit residential. Restaurants, retail, and light industrial call to discuss your project scope.
Every service call, every job, every time. No exceptions.
After we assess the issue, you approve the scope and quote before work begins. No mid-job surprises, no billing padded with extra labor hours.
TX Master Plumber Lic # M44165. You know who is doing the work and what license backs it. Fully bonded and insured on every job.
We understand that plumbing problems don't schedule themselves. Same-day service is available for most jobs throughout our service area.
Military values applied to every service call. Honesty, precision, and accountability aren't marketing language at O5 they're the standard we were trained to.
Ask about our offers when you call.
This month only. Mention this offer when you call. Standard service rates apply.
New water heater installation. Applies to standard tank and tankless units.
Active duty, veterans, and first responders. Thank you for your service.
"I've used O5 for a water heater replacement, a slab leak, and two drain cleanings over the past three years. Every single time: showed up when they said, priced it upfront, did the work right, left the area clean. There is no other plumber I'll call."
"As a veteran myself, I make a point of supporting veteran-owned businesses but O5 would earn my repeat business even without that. Their pricing is honest, their work is clean, and they explain what they're doing without talking down to you. Highly recommend."
"Called at 7am with a leak under the kitchen sink and no water pressure. O5 answered immediately, had someone here by 10, diagnosed two problems (a failed supply line and a corroded shutoff valve), quoted both fixes, and finished by noon. That's how it should work."
Yes. O5 Plumbing offers same-day service for plumbing emergencies when available. Burst pipes, major leaks, gas emergencies, and complete loss of water service qualify for emergency response. Call (830) 293-4141 for current availability.
After diagnosing your problem, we give you a single flat price for the approved job parts, labor, and any required materials. You approve that price before repair or installation work begins. We don't charge by the hour, so there are no surprises based on how long a job takes. If we discover additional problems during the work, we stop and give you a new price before proceeding we never add charges without approval.
Yes. O5 Plumbing holds TX Master Plumber License # M44165 under Eric Keigher. We are fully bonded and carry general liability and workers' compensation insurance. You can verify the license at the Texas State Board of Plumbing Examiners (TSBPE) website. We'll provide proof of insurance to any customer or general contractor who requests it.
Yes and we're straightforward about what we find. Older galvanized steel supply lines eventually corrode from the inside, restricting flow and causing rust-colored water. Cast iron drain lines develop cracks and root intrusion over decades. We'll tell you honestly whether a section repair makes sense or whether repiping is the better long-term investment. We don't push unnecessary work, but we also won't patch something that needs to be replaced.
Call O5 Plumbing for honest diagnosis, upfront pricing, and quality work backed by a 100% satisfaction guarantee.
(830) 293-4141