Cities We Serve
Austin Area:
San Antonio Area:
Not seeing your area? Give us a call at (833) 656-4056
Plumbing Repairs
Small Parts Fail. The Damage They Cause Is Not Small.
Most of the plumbing repairs we do are on parts that cost less than dinner: a supply line, a shutoff valve, a pressure reducing valve, a relief valve on the water heater, a hose bib. What makes them worth a licensed plumber is what happens when they fail. A braided line behind a toilet lets go and runs all weekend while you are at the lake. A main valve that has not been turned in fifteen years snaps off in your hand during an emergency. A PRV that has quietly drifted to high pressure takes out the water heater, the ice maker line and the washer hoses one by one. Fixing the part is easy. Knowing which parts are about to fail, and why, is the job.
Radiant repairs it all, and diagnoses before quoting. If the pressure is high, the fix is the pressure reducing valve, not the third fitting it blew out. If a water heater’s relief valve keeps dripping, the cause is usually pressure or a missing expansion tank, not the valve. You get the real cause explained, the repair in writing, and a straight answer when something is not worth fixing. Fixture-specific work has its own pages: toilets, faucets and water heaters. For water actively pouring out, go to emergency plumbing. For a leak you cannot find, leak detection. Everything else that is broken, dripping, stuck or corroded belongs here.
- Cause, then part We find out why it failed before we replace it, so the same repair is not back on the calendar next spring.
- Often fixed on the first visit Valves, lines, PRVs, relief valves, hose bibs and common fittings ride on the truck.
- Licensed in both cities Master Plumber M-42438 in Austin and M-45619 in San Antonio. Trained, bonded and background-checked.
What to Watch For
Repairs That Should Not Wait
None of these are dramatic. Every one of them turns into something dramatic if it is left.
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A shutoff valve that will not turn or drips when it does
Under sinks, behind toilets, at the water heater or the main. A valve you cannot close is the one you will need at midnight.
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Banging pipes or fittings that keep failing
Water hammer and repeat failures usually mean high pressure. The PRV, not the fittings, is the repair.
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Water heater relief valve dripping
The T&P valve is doing its job: relieving pressure or temperature. The cause needs fixing, and the valve may need replacing after.
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Stiff, bulging or rusty supply hoses
Washer hoses and braided lines under sinks and toilets age out. A bulge or a rust spot on the braid is a burst waiting for a weekend.
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A drip under a sink or around a fixture base
A slow drip rots a cabinet floor and feeds mold long before it makes a puddle you notice.
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A hose bib that leaks or sprays at the wall
A split from last winter or a worn stem. Water into the wall cavity behind it is the part you cannot see.
What We Repair
The Repairs Behind Most Service Calls
From the meter to the last fixture, with the cause corrected along with the part.
- Shutoff valves, main to fixture Seized, corroded and leaking stops replaced with quarter-turn valves, and a main shutoff you can trust in a hurry.
- Pressure reducing valves Tested, adjusted or replaced so the house runs at a pressure that does not shorten the life of everything connected to it.
- Water heater safety components Relief valves, expansion tanks, drain pans, flex connectors and gas shutoffs, the parts that keep a tank from becoming a problem.
- Supply lines and connectors Washer hoses, toilet and faucet supplies, ice maker and dishwasher lines, replaced before they let go rather than after.
- Hose bibs and outdoor plumbing Leaking, split and stripped hose bibs replaced, frost-free where possible, plus yard hydrants and pool fill lines.
- Leaking joints and pipe sections Weeping solder joints, cracked fittings and corroded sections in copper, PEX, CPVC and galvanized, replaced and tested.
How It Works
What a Repair Call Looks Like
You know the price before we pick up a wrench, every time.
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Tell us what it is doing
Where the water is, what is stuck or dripping, how long it has been going on. We book a window that fits your day.
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Diagnose the cause
The failed part, and the pressure, age or corrosion behind it. A pressure reading is part of nearly every repair visit.
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Price in writing
The repair, and anything that should sensibly be done with it, priced and explained. You say yes or no to each.
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Repair and test
Often fixed from parts on the truck, tested under full pressure, and covered by the Home Comfort Guarantee.
Current Specials
Save on the work your home needs most.
Something Dripping, Stuck or Corroded?
Get it looked at while it is still a small repair. You approve the price first.
What Our Customers Say
Don't just take our word for it — hear from our satisfied customers
★★★★★
I had Radiant Plumbing replace my tankless water heater, damaged in the Feb. 2021 snowmageddon storm with a new unit. The process was smooth and professional from start to finish. The plumber, James, was extremely knowledgeable and thoroughly explained my options to me. The cost and time to perform the installation were just as estimated. When he was done, James explained how to maintain the system, what service would be needed and how to perform it, and answered all of my engineering geek questions. It was a thoroughly positive experience. I have used several different plumbers in Austin over the past 15 yrs, but my search is over - I will not hesitate to call Radiant next time and would recommend them unreservedly.
8/9/23 Update: I have subsequently used Radiant for a toilet repair, faucet installation (Danny), and drain work (Ezekiel) and they have continued to impress with knowledgeable, friendly plumbers and quality work.
8/9/23 Update: I have subsequently used Radiant for a toilet repair, faucet installation (Danny), and drain work (Ezekiel) and they have continued to impress with knowledgeable, friendly plumbers and quality work.
★★★★★
We called Radiant Plumbing after we noticed a water leak in our kitchen. We were in a time crunch and they were able to schedule us quickly, before we left for vacation. They sent their representative, Preston Nichols, and he was excellent to deal with! He was on time, skillful, friendly, and very professional. It turned out to be a problem with our dishwasher but Preston was quick to diagnose it and set our minds at ease. While he was here, we mentioned that our one year-old water heater needed to be flushed. Preston was quick to take care of that, as well, saving us time and money in the process. Radiant charged us almost half the price another plumber quoted us for that service! While Radiant Plumbing isn’t our usual plumber, they gained a new customer. We won’t hesitate to call Radiant again in the future based on our VERY positive experience with them.
★★★★★
Had 3 different systems installed by them approx. 3 years ago for a total of approx $20k. I was quite happy with the install until the year later when they came for a maintenance call and started finding deficiencies in their own install. they wanted extra money to address those deficiencies. Now I am in the process of selling my home and an inspector has found a few items that need to be addressed and they will not even look at the report unless I schedule a $139.00 service call. Very poor customer service.. This company does not stand by their work and would not recommend.
I am revising my review of this business from 1 to 5 stars. After my original review I was contacted by the company's service manager and he made sure that I was taken care off. I had a team of 3 technicians coming to my house to double check the system and make the necessary adjustments. I was very satisfied by their attention to details and professionalism.
I am revising my review of this business from 1 to 5 stars. After my original review I was contacted by the company's service manager and he made sure that I was taken care off. I had a team of 3 technicians coming to my house to double check the system and make the necessary adjustments. I was very satisfied by their attention to details and professionalism.
Maintenance Membership
Join the Care Club
Home maintenance for $9.99 a month.
Care Club members get two HVAC tune-ups and a plumbing safety inspection every year, priority scheduling, no dispatch fees — ever — and 5% off every repair.
- Priority scheduling
- Seasonal HVAC tune-ups
- Annual safety inspection
- Exclusive member discounts
- Free dispatch on repairs
- No long-term contracts
Plumbing Repair Questions
Can you give me a price over the phone?
Honestly, no, and you should be wary of anyone who does. A dripping valve might be a stem washer or a valve body that has corroded to the pipe; a leak under a sink might be a supply line or a drain that was assembled wrong ten years ago. Quoting blind means either guessing high to protect ourselves or guessing low and surprising you later, and we do not do either. What we can promise is how the price works: the plumber diagnoses the problem, writes up the repair with the cost, and nothing happens until you approve it. That quote is honored for 72 hours under the Home Comfort Guarantee, so you can say no, think about it, or get another opinion.
Why do my plumbing fittings and appliances keep failing?
Check the water pressure. Some neighborhoods in Austin and San Antonio get utility water at pressures higher than household plumbing is designed for, and a pressure reducing valve at the house entry is supposed to bring it down. Those valves wear out, usually without anyone noticing, and the pressure inside the house climbs. The results show up one at a time: a water heater relief valve that drips, a toilet fill valve that fails, a washer hose that bursts, an ice maker line that lets go, fittings that weep. Each gets fixed and the next one goes. A five-minute pressure test at a hose bib tells the story, and a new PRV is a lot cheaper than the string of repairs. See our water pressure page for more.
My shutoff valve will not turn. Should I force it?
No. An old multi-turn valve that has not moved in years is usually seized by mineral scale and corrosion, and forcing it tends to snap the stem, strip the handle or start a leak at the packing nut, which turns a non-problem into an urgent one. If you need it closed right now, shut off at the main instead. Then have the valve replaced. We install quarter-turn ball valves, which do not seize the way the old style does and close with a flick of the handle. While we are there we check the other stops in the house, because valves installed at the same time tend to fail at the same time. This is one of the most useful small repairs a home can get, and one of the most overlooked.
Do you take small repairs, or only big jobs?
Small repairs are most of what we do. A leaking supply line, a stuck valve, a hose bib, a relief valve, a drip under the sink: these are the calls that fill the schedule, and they are the ones that keep a house out of trouble. There is no job too small to get a licensed plumber, a real diagnosis and a written price. If several small things have piled up, tell us when you book and we will plan the visit to knock them out together, which is cheaper than three separate trips. Care Club members pay no dispatch fees and get 5% off repairs, so the small stuff costs even less to stay on top of.
*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.
