Plumber, AC Repair & Electrician in Del Valle, TX

Southeast of the Airport, Same Honest Service

Del Valle mixes acreage homes on wells with brand-new subdivisions on black clay. Radiant’s licensed plumbers, HVAC technicians and electricians work in both, with the price approved before we start.

Service Area Del Valle, TX
Region Austin & Central Texas

Plumbing, HVAC and Electrical Service in Del Valle

Del Valle is the stretch of southeast Travis County that starts at Austin-Bergstrom International Airport and runs out along State Highway 71 toward Circuit of the Americas and the Colorado River. For a long time it was farmland and homes on big lots, many on wells and septic. That is still true along the back roads. But the last decade has brought subdivision after subdivision to the corridors along SH 71, FM 973 and Ross Road, so a technician here sees a 1970s house on three acres and a two-year-old slab home with an HOA in the same afternoon.

Radiant has served Del Valle from our Austin office since 1999. The single biggest factor in this area is the soil: Blackland Prairie clay that swells in a wet spring and shrinks in a dry summer. It moves foundations, and it cracks the water and sewer lines that pass through them, which is why slab leaks and separated drain lines are the calls we get most. Behind those come air conditioners that cannot keep up in a house with no shade, water heaters at the end of their life, well pressure problems, and, in older homes, wiring and panels that predate everything plugged into them.

Because Del Valle is inside our Austin service area, our licensed electricians work here alongside our plumbers and HVAC technicians. Every call runs the same way: a diagnosis, a plain explanation, a written price you approve first, and the Home Comfort Guarantee behind the work.

  • Clay-soil plumbing Slab leaks, shifted sewer joints and foundation-related pipe stress are familiar problems, located with equipment before anyone digs.
  • Old lots and new builds Well systems and septic on acreage, builder-grade equipment and warranty questions in the subdivisions. We work in both.
  • Home Comfort Guarantee Accurate quotes honored for 72 hours, and a no-backup promise on every drain and sewer job.
Del Valle same-day service by Radiant

Services for Del Valle Homes

Repairs, replacements and maintenance for southeast Travis County, around the clock.

Leak Detection

Warm floors, a meter that never stops, or a bill that jumped. We pinpoint slab and yard leaks on clay ground so the repair is small and in the right spot.

Find the leak

AC Repair

Single-story slab homes with full sun and attic air handlers work their systems hard. We repair the fault and quote it before touching anything.

Repair my AC

Plumbers

Pressure regulators, well pressure tanks, fixtures, gas lines and repipes for homes from the airport corridor to the river.

Del Valle plumbers

Drain Cleaning

Sewer lines that shifted with the clay, kitchen stoppages and septic-bound drains cleared and inspected with a camera.

Clear the drain

Electrical

Panel replacements in older homes, added circuits, EV chargers and standby generators from licensed electricians, permitted and inspected.

Electrical service

Emergency Plumbing

A burst line, a backed-up main or a water heater dumping into the garage at 2 a.m. gets the same upfront price as a Tuesday morning.

Emergency help

Water Heater Replacement

Garage and attic tanks replaced with the right size, a drain pan and an expansion tank, or a tankless if that fits the household.

Replacement options

Heat Pumps

Many Del Valle homes have no gas service. A heat pump heats and cools with one system and skips the propane bill.

Heat pump options

Local Knowledge

What Del Valle Ground and Weather Do to a Home

Blackland clay, all of it. There is no limestone side to Del Valle. The soil here is expansive clay through and through, which is good for farming and hard on houses. Slabs lift and drop with the seasons, doors stick, and the copper or PVC running through the foundation gets pulled and pinched until it leaks. Sewer lines separate at joints for the same reason. Keeping the soil around the foundation evenly watered in a drought helps; so does a leak check when the water bill moves without a reason.

Two water systems. Homes in the new subdivisions are on a utility or water supply corporation. Older homes on acreage may still be on a private well, with a pressure tank in a shed and a long line to the house. Both sources are hard, and well water may also carry sediment or a sulfur smell. Filtration and softening get sized to the source, not to a catalog.

Full sun and thin shade. Much of Del Valle was open field before it was a neighborhood, so the newer homes have little tree cover and take the afternoon sun straight on. Air conditioners run long hours, attic ductwork bakes, and a system that was borderline on size shows it every August. Sealed ducts and a properly sized replacement matter more here than in an older, shaded part of Austin.

Low ground near the creeks. Onion Creek and the Colorado River both run through the area, and low-lying streets near them have flooded in past storms. Water heaters, furnaces and electrical panels that have been under water need inspection before they go back into service.

Freezes. February 2021 hit exposed lines, well heads and attic water heaters across southeast Travis County. Insulation and a shutoff you can find in the dark are the practical defense.

Del Valle and Southeast Travis County

Del Valle, the airport corridor and the neighborhoods along SH 71 and FM 973, between Austin and the Bastrop County line.

Frequently Asked Questions

Our Del Valle house sits on black clay and the doors stick every summer. Does that affect the plumbing?

Yes, and the doors are the warning. Clay that dry is shrinking away from the foundation, and the slab is settling with it. The water lines that come up through the slab and the sewer line that leaves under it are pulled along for the ride. Copper can kink or rub through against the concrete; PVC drain joints can separate. Warning signs are a water bill that rises with no visible leak, a warm spot on the floor, a drain that has slowed down or a faint sewer smell after rain. We locate a slab leak with acoustic and pressure equipment and camera the sewer line, and you get a written price before any concrete is cut. Often the fix is one section, not the whole line.

We are in a new subdivision off SH 71. When something fails, should I call the builder or Radiant?

Check your builder warranty first. Most new homes come with a period of coverage on workmanship and systems, and if the failure is inside that window, using it costs you nothing. Read the terms, because the plumbing, HVAC and electrical coverage often runs for a different length of time than the structural coverage. Once the warranty has ended, or for anything it does not cover, call us. We are familiar with the builder-grade water heaters, pressure regulators and condensing units that go into these houses, and we carry the parts that fail first. If you want a baseline before the warranty runs out, a Care Club inspection documents the condition of everything while there is still time to make a claim.

Our water pressure swings all day. Is that the well pump or something in the house?

On a well, pressure that surges and drops in a cycle usually points to the pressure tank or the pressure switch. A tank that has lost its air charge makes the pump kick on and off constantly, which is hard on the pump and shows up as pulsing at the shower. A worn switch does something similar. On a utility or water supply corporation line, the same symptom is more often a failing pressure-reducing valve at the house. Our plumbers test at the tank, the switch and the regulator and tell you which one it is. We service the house side of a well system; if the pump itself is failing, we will say so rather than sell you a part that will not fix it.

Water got into our garage during a storm and the water heater and AC were standing in it. What needs to be checked?

Do not just relight it and hope. A gas water heater whose burner and control valve have been under water needs those parts replaced; manufacturers are consistent on that, because corrosion inside a flooded gas control can fail later, not right away. An electric heater with wet elements and thermostats needs the same scrutiny. An outdoor AC unit that was submerged needs its electrical components inspected before it is powered up, and any outlets, disconnects or a panel that were under water need a licensed electrician’s inspection. We check all of it, tell you what is safe to keep, what needs replacing and what the cost is, and you decide. Our safety repair page covers the plumbing side in more detail.

What Our Customers Say

Don't just take our word for it — hear from our satisfied customers

C Claudia H.
Claudia H. 3 years ago
★★★★★
Our 18 year old HVAC system finally gave out this past week, so we reached out to Radiant to see what could be done. They sent a tech out named Bryan the same day, and he did a great job looking over the entire HVAC system. He was friendly and helpful in explaining everything that he saw, and our options moving forward. We decided to replace the entire system, so we met with Jacob (same day thankfully) to find the best HVAC system for our needs. Jacob was friendly, professional, and did a great job explaining the different options on offer. Radiant was able to set-up next day install, which was much appreciated, because the temps were still going to be cold in the coming days.

The install team consisted of Carlos and Pablo, who were very courteous and professional, and were kind enough to answer any questions I had regarding the install. They did a great job installing our new HVAC system, and were tidy which is always appreciated! Before they left, they explained everything that had been done, and showed me photos of the work.

Our entire experience from start to finish was great. I appreciate that they send photos of who is coming to your home too. Friendly, kind, professional team members, and good work all the way around. Thanks Radiant!
R Renee Mayer
Renee Mayer 3 years ago
★★★★★
This is the first time I’ve used radiant my neighbor recommended them…. I called them today and they set me up an appointment on the same day. I was totally shocked at that and the service call was only $39!!…. Highly recommend them Danielle showed up and he was a great guy and he put up with all my wishy-washiness and I had to hurry him because I was heading to church and he got caught in a lot of traffic getting here he even would’ve installed the part that broke but I Didn’t have the time tonight….. He was patient with me and just told me to call the office first thing in the morning and get a service call set up…. Thank you so much Radiant!!….
With another cold front coming in tomorrow now I just hope they can get me scheduled for a separate call tomorrow but I have a feeling they will. They are such a great company!!😊😊
J Jeff Fazio
Jeff Fazio 3 years ago
★★★★★
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.
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