Need a water heater plumber in Lampasas TX? Mark The Plumber is a Licensed Master Plumber (RMP#45578) serving Lampasas and all of Lampasas County. Tank and tankless water heaters, PRV replacement, and pressure problems — we diagnose it right and fix it right. Free estimates. Call (830) 613-1089.
130 PSI. T&P valve tripping constantly. A failed PRV buried underground. Here’s how Micah (apprentice) and Mark (Master Plumber, cameraman) diagnosed and fixed it — on video.
📺 Watch more on YouTube — Micah’s Journey to Licensed Plumber, with Mark as teacher & cameraman on every real job
The homeowner called because their T&P (Temperature & Pressure Relief) valve kept tripping. Most people assume that means the water heater is failing. First thing Micah did was check the incoming water pressure at the hose bib.
The gauge read over 130 PSI. Normal is 40–80 PSI. At that pressure, the T&P valve is doing exactly what it’s supposed to do — protecting the home from a dangerous overpressure situation. The water heater wasn’t the problem.
A PRV (Pressure Reducing Valve) sits on your main water line where it enters the property. Its job is to reduce street pressure to a safe level for your home. When it fails, it stops regulating — and full street pressure floods your plumbing.
When they dug it up, the old PRV was corroded and stuck wide open. It had likely been failing for a long time — causing the T&P to trip, wearing out the water heater faster, and stressing every fixture in the house.
After the new PRV was installed and set to the correct pressure, the T&P valve stopped tripping. The water heater — which also had several non-code items addressed on the same visit — is running correctly. One trip. Done right.
Want the full technical breakdown?
Read the complete case study on the blog — what a T&P valve does, why PRVs fail, and what to do if yours keeps going off.
Don’t wait until you’re flooded. These are the signs your water heater or pressure system needs attention now.
Don’t just replace the valve. Have a plumber check incoming pressure first — it’s often a PRV problem.
Failing heating element, thermostat, or sediment buildup reducing efficiency.
Sediment buildup at the bottom of the tank — a flush or replacement may be needed.
A cracking tank or failing connection. Call immediately — this won’t fix itself.
Internal corrosion. Once it starts, replacement is usually the only real fix.
Start planning before it fails at the worst time. Ask about tankless upgrades.
All brands — Rheem, A.O. Smith, Bradford White, State. Gas, electric, and propane. Same-day replacement when possible.
Navien, Rinnai, Rheem tankless units. Repair, flush, and full replacement. Ask about upgrading to tankless.
If your T&P keeps going off, this is often the real fix. We test, diagnose, and replace pressure reducing valves.
All water heater work is done to Texas plumbing code. Permitted where required. Licensed Master Plumber RMP#45578.
Not a franchise. Not a call center. Mark The Plumber is a local, family-owned operation — and the video above is the proof.
Mark and his son Micah work real jobs together throughout the Highland Lakes and Central Texas. You’re talking to the plumber, not a dispatcher.
Texas Master Plumber license RMP#45578 and Google Guaranteed. All work done to code, permitted where required. Not a handyman.
On the Lampasas job, Micah found the real cause — a failed PRV — before touching the water heater. That’s how we work every time.
No hot water is an emergency. Mark stocks common water heater sizes and can often complete same-day replacements in Lampasas.
Always. You know the price before any work starts. No surprise charges, no trip fees, no pressure. Honest pricing every time.
Real reviews from real Highland Lakes and Central Texas homeowners. Read them — then give us a call at (830) 613-1089.
Based in Buchanan Dam — we make regular runs to Lampasas and serve all communities throughout Burnet County, Llano County, and Lampasas County.
Do you repair water heaters in Lampasas TX?
Yes. Mark The Plumber is a Licensed Master Plumber (RMP#45578) serving Lampasas and all of Lampasas County. We repair and replace all types of tank and tankless water heaters — gas, electric, and propane. Free estimates — call (830) 613-1089.
Why does my T&P valve keep going off?
A T&P valve that trips repeatedly is usually caused by high incoming water pressure — not a failing water heater. In Lampasas we often find a failed PRV on the main water line is the real culprit, allowing street pressure of 100+ PSI into the home. Watch our real job video above. Always have a plumber check incoming pressure before replacing the water heater.
What is a PRV and do I need one?
A Pressure Reducing Valve (PRV) reduces incoming municipal water pressure to a safe level (50–70 PSI) for your home’s plumbing. Without one, or when one fails, high pressure damages water heaters, causes T&P valves to trip, and shortens the life of all your fixtures. Mark The Plumber installs and replaces PRVs throughout Lampasas County.
How much does water heater repair cost in Lampasas TX?
Most water heater repairs in Lampasas run $150–$600 depending on the issue. Full tank water heater replacement typically runs $900–$1,800 installed. PRV replacement is often $300–$600 including excavation. Mark offers free estimates so you know the cost before any work starts. Call (830) 613-1089.
How far does Mark The Plumber travel to Lampasas?
Based in Buchanan Dam — we make regular runs to Lampasas and serve all of Lampasas County. Drive time is under an hour and we make the trip regularly for water heater work, PRV replacement, and general plumbing. Call (830) 613-1089 for scheduling.
Describe your water heater issue and Mark will get back to you fast — usually same day.
Call or text for a free estimate. We serve Lampasas, Marble Falls, Burnet, Horseshoe Bay, Llano & all of Central Texas.
