Plumber & AC Repair in New Braunfels, TX

Century-Old Homes and Brand-New Ones, Same Honest Service

New Braunfels has houses from the 1800s and subdivisions still under construction. Radiant’s licensed plumbers and HVAC technicians work on both, with the price approved before we start.

Service Area New Braunfels, TX
Region San Antonio & the Hill Country

Plumbing and HVAC Service Across New Braunfels

Few cities in Texas have grown the way New Braunfels has. The old German town along the Comal and Guadalupe rivers is still there, with its stone and frame houses near downtown and Gruene, and around it are square miles of subdivisions that did not exist fifteen years ago. A plumber or HVAC technician working here has to be comfortable with both: a 1920s house with three generations of plumbing spliced together, and a 2019 build whose builder-grade water heater is already scaling up.

Radiant has served the San Antonio area since 1999, and New Braunfels is one of the busiest parts of our Comal County territory. The most common calls are water softener installs, since the water here is very hard, air conditioners that cannot keep up in a July that regularly clears 100 degrees, water heaters in attics and garages, slab leaks on the clay soils east of I-35, and drain lines that older homes have simply outlived.

Every visit starts with a licensed, background-checked technician looking at the actual problem and giving you a plain explanation and a written price. You approve it before any work begins. We will tell you when a repair makes more sense than a replacement, and when it does not, we lay out financing so the decision is about the house rather than the month.

  • Old-house experience Mixed-material plumbing, additions and retrofit ductwork in historic homes are familiar territory.
  • New-build know-how We know which builder-installed parts fail first and carry them on the truck.
  • Home Comfort Guarantee Accurate quotes, honored 72 hours, and a no-backup promise on drain work.
New Braunfels same-day service by Radiant

What We Do in New Braunfels

Repairs, replacements and maintenance for homes on both sides of the interstate.

Water Softeners

New Braunfels water is very hard. A properly sized softener protects your water heater, dishwasher and every faucet in the house.

Softener options

AC Repair

Warm air, short cycling or a system that never shuts off. We diagnose the real cause and quote the repair before touching anything.

Repair my AC

Plumbers

From a 1920s house near downtown to a slab home on the east side, licensed plumbers for fixtures, lines, gas and repipes.

New Braunfels plumbers

Tankless Water Heaters

Endless hot water for a growing household, installed with the softening and annual descaling our water demands.

Tankless options

Drain Cleaning

Aging cast iron, tree roots and clay-shifted sewer lines. We clear the stoppage and camera the line so you know what is next.

Clear the drain

AC Installation

When it is time, we size the new system for your home and sun exposure, and every install over $3,000 is manager-reviewed.

Replacement options

Heating

Furnace and heat pump repair and maintenance so the first cold front of the year is not the first time you find out something is wrong.

Heating service

Water Quality

Filtration and reverse osmosis for better-tasting water at the tap, paired with softening for the whole house.

Improve my water

Local Knowledge

How New Braunfels Treats a House

Very hard water. The local supply draws on the Edwards Aquifer and Canyon Lake, and both are mineral-heavy. Water heaters here lose capacity to scale every year, tankless units need descaling, and unsoftened homes go through faucets and dishwashers faster. A softener and an annual heater flush are the two highest-value plumbing investments in this city.

Two kinds of ground. West of I-35 the land rises into limestone and caliche, so digging is slow and long service lines lose pressure. East of the interstate it turns to blackland clay that swells and shrinks with the weather, stressing slab foundations and cracking sewer lines. Where your house sits changes what we look for first.

Historic plumbing. The older homes near downtown, Landa Park and Gruene often have galvanized, copper and PEX all in one house from decades of repairs. We map what is there before recommending a fix, and a repipe is on the table only when it truly beats another patch.

Summer that does not quit. Cooling season runs April to October. Attic ductwork in new subdivisions is often leaky from day one, and older homes have retrofit systems that were never balanced. Duct sealing and a right-sized system beat simply buying a bigger unit.

Freezes happen. February 2021 burst attic water heaters and exposed lines across Comal County. Insulation and a shutoff you can find in the dark are worth doing before the next one.

New Braunfels and Comal County

We cover New Braunfels, Gruene and the surrounding Comal County neighborhoods from our San Antonio office.

Frequently Asked Questions

Which parts of New Braunfels do you cover: Gruene, the west side, or just along I-35?

All of it. Our technicians work in the historic district and Gruene, the older neighborhoods around Landa Park, and the newer subdivisions on both sides of the interstate. New Braunfels is a regular part of our Comal County routes rather than an occasional trip, so scheduling works the same as it does inside San Antonio: 24/7 availability, a quoted price before work starts, and no surprise fees for evenings or weekends. If you are not sure your address is covered, call and we will tell you straight.

Does the hard water in New Braunfels really shorten the life of my appliances?

Yes, and measurably. Water here carries a lot of dissolved calcium and magnesium, and every time it is heated some of that drops out as scale. In a tank water heater, scale insulates the burner from the water, so the heater works harder, rumbles and eventually fails early. In a tankless unit it narrows the heat exchanger. Dishwashers, washing machines, faucet cartridges and ice makers all suffer the same way. A softener at the main line stops it, and an annual water heater flush clears what has already built up. Those two things usually pay for themselves.

Our house has a mid-century addition with different plumbing than the original. Can you sort that out?

That is a very New Braunfels problem, and yes. Older homes here often have galvanized steel in the original section, copper in a 1960s addition and PEX from a more recent bathroom remodel, all joined with whatever fittings were handy at the time. Those transitions are where leaks, pressure loss and rusty water start. We trace what is actually in the walls, pressure-test the system and show you where the weak points are. Sometimes the fix is replacing one bad section; sometimes a whole-house repipe is the honest answer. You get both options priced before we start anything.

Should I go tankless in New Braunfels, or stick with a tank?

It depends on your household and your water. Tankless units are a good fit for larger families and homes where the tank has been running out, and they save garage or attic space. The catch is hard water: a tankless heat exchanger scales up quickly here, so it needs a softener ahead of it and annual descaling to hit its expected lifespan. A quality tank with a softener and a yearly flush is simpler and costs less upfront. We install both and will price them side by side for your house. Details are on our tankless page, and financing is available for either.

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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