Electric Water Heater Thermostat Replacement
$225
Replace one failed upper or lower thermostat and test operation. Second thermostat: +$100.
See real prices online before anyone comes out. Pick the service, approve the posted price or range, and book online. A licensed tech arrives to do the work, not to sell you.
All pricing is based on system conditions, accessibility, and scope of work. Final pricing is always reviewed and approved before any repairs or replacements are performed.
We proudly serve homeowners throughout McAllen, Mission, Edinburg, Pharr, and surrounding Rio Grande Valley communities.
See posted prices online and approve your range before anyone comes out. A licensed technician arrives to do the work, not to sell you.
Leak detection services typically range from $400–$800, with pricing provided before any work begins.
Quick answer
At All Valley Plumbing & A/C Co., plumbing and air conditioning service in McAllen, TX ranges from $45 to $15,764.50 (prices updated September 22, 2026). You can see your exact price online and book without a sales visit, and your price is approved before any work begins. Call 956-686-6656 if you would rather talk to someone.
| Service | Price |
|---|---|
| Air Conditioning Diagnostic | $75 |
| Plumbing Diagnostic | $45 |
| Warranty Tank Install (Rheem tank covered) | starting at $763.50 (labor only; parts and any Rheem exchange fee extra) |
| Water Heater Replacement | $1,456.86 – $2,412.30 |
| Water Leak Repair | $275 – $625 |
| Slab Leak Reroute & Repiping | From $1,875 |
| Drain Cleaning | $175 – $600 |
| Leak Detection | $400 – $800 |
| Sewer & Drain Services | $175 – $600 |
| Garbage Disposal | $197.50 – $325 |
| Slab Leak Repair | $1,875 – $2,463 |
| Water Filtration | $4,963.50 – $5,263.50 |
| Water Heater Repair | $225 - $425 |
| Air Conditioning Replacement | $6,000 – $12,635.50 |
| Slab Leak Detection | $400 – $800 |
| Slab Leak Re-Route | $1,875 – $2,463 |
| Hydro Jetting | $350 – $600 |
| Sewer Camera Inspection | $200 – $400 |
| Hydrostatic Testing | $575 – $975 |
| Whole-Home Repiping | $8,763.50 – $15,764.50 |
| Toilet Repair | $175 – $425 |
| Faucet Repair & Installation | $175 – $375 |
| Shut-Off Valve Replacement | $175 – $375 |
| Air Conditioning Repair | $275 – $875 |
| Air Conditioning Tune-Up | $89 – $129 |
| Thermostat Replacement | $150 – $350 |
Prices last updated: September 22, 2026
Below are typical pricing ranges for common plumbing services. These ranges are provided to set expectations and help determine the appropriate next step.
Typical Cost Range: $400–$800
Pricing depends on:
Leak detection focuses on accurate diagnosis using non-invasive methods to pinpoint the leak location or affected zone.
Learn more about Leak Detection & Hydrostatic TestingUpfront pricing available
Water heater pricing varies based on:
We offer a dedicated water heater pricing page where homeowners can review options and submit details before scheduling service.
View Water Heater Pricing & OptionsChoose the matching service below to see its posted price and book online before a visit.
Common services include:
Choose the matching posted service below:
Services may include camera inspections, hydrostatic testing, or targeted sewer repairs based on findings.
Online special
Parts depend on what your install needs, and Rheem's exchange fee depends on your tank's age. We confirm both with you before any work starts, so you approve the full price first.
Check your Rheem warrantystarting at $763.50 (labor only; parts and any Rheem exchange fee extra)
Book Warranty Install – from $763.50$45 diagnostic fee - waived when you approve any repair.
$225
Replace one failed upper or lower thermostat and test operation. Second thermostat: +$100.
$275
Replace one failed heating element and test heating operation. Second element: +$125.
$425
Replace failed gas control valve/thermostat and verify proper burner operation.
$225
Replace failed thermocouple and verify pilot/burner operation.
$375
Drain and flush tank to remove sediment and mineral buildup.
$225
Replace temperature and pressure relief valve and test for proper operation.
$225
Remove and replace sacrificial anode rod to help protect the tank from corrosion. If the rod is seized or overhead clearance is limited, we show you the price before any extra work.
Prices include parts, labor, and testing. If we find anything the posted price doesn't cover, we show you that price first and you approve it before we touch it.
Prices last updated: September 22, 2026
"Is it worth fixing, or should I replace the whole faucet?"
We'll help you decide — and we only recommend replacements when truly needed.
"Do you supply the faucet or should I buy my own?"
We can install a faucet you've purchased or help you select a quality replacement. Pricing covers professional installation, supply line connections, and leak testing.
"Is it a clog, leak, or faulty part?"
We diagnose fast and fix it right the first time.
"Can you just replace the motor or does the whole unit need to go?"
We always try to repair first — and install only when it makes long-term sense.
Flat installation price when you already have the disposal unit.
"Is this going to turn into a major job?"
Not necessarily. We pinpoint it and contain the cost.
Non-invasive water and slab leak detection. See the leak detection cost guide.
"How do I know if I really have a slab leak?"
We use advanced detection tools before we cut — no guessing.
"Is this just a clog or a bigger issue?"
Sometimes it's a quick cleanout — other times it's tree roots or pipe scale. We'll tell you the truth.
"Is this why my water pressure is off?"
Likely, yes. We'll replace the valve cleanly and to code.
We install whole-home water softening and filtration systems to improve water quality throughout your home. We confirm the right system for your home and show you the exact price before any work.
"Is this better than jackhammering my floor?"
Often, yes. We explain both options clearly.
Includes removal of old unit and installation of new unit with hot/cold connections and T&P connection.
In most cases, your water heater will be replaced with a Rheem unit of the same size and capacity. If a different brand or size is needed, we'll show you the price and you approve it before any work begins.
See and approve the posted range before work begins.
See and approve the posted range before work begins.
See and approve the posted range before work begins.
See and approve the posted range before work begins.
See and approve the posted range before work begins.
See and approve the posted range before work begins.
See and approve the posted range before work begins.
Prices last updated: September 22, 2026
$75 diagnostic fee - waived when you approve any repair.
Stay cool with expert A/C service from techs you trust. Whether it's a repair or full replacement, we've got you covered — no mystery pricing.
"Can you fix it same day?"
The posted range is approved when you book. If anything outside that scope is needed, you see and approve that price before work begins.
"Is a tune-up really necessary?"
Annual maintenance can double the life of your system and prevent breakdowns. It's worth it.
"Should I upgrade to a smart thermostat?"
We'll help you choose — and install models that work with your system.
"What brand do you recommend?"
We walk you through the best fit for your budget, home size, and energy efficiency goals.
$45 for plumbing and $75 for Air Conditioning, and the fee is $0 when you hire us for the repair.
$45 is the plumbing service-call fee and $75 is the Air Conditioning diagnostic fee. It becomes $0 when you approve a repair.
$225–$425 covers our posted water heater repairs in McAllen and the Rio Grande Valley.
$375 is our posted price for a tank water heater flush or descaling.
Most drain cleaning costs $175–$375. Hydro jetting runs up to $600.
$175–$425 is our posted toilet repair range.
$275–$425 is our posted range for a standard water leak repair.
$400 is the starting price for slab leak detection.
$1,875 is the starting price for a slab leak reroute. New lines run through the attic and ceiling, not under the slab.
$7,663 is the starting price for an attic-and-ceiling repipe, and whole-home repiping starts at $8,763.50.
$197.50 is the flat price when you already have the unit; replacement with our unit is $325.
Yes, the whole team speaks Spanish.
We're family-owned since 1984, not a franchise. We don't pay franchise fees or run a large fleet or sales team, so we can post our prices online and charge exactly what's posted. You approve the price before any work begins.
No. We're a locally owned, family-owned plumbing and A/C company serving McAllen and the Rio Grande Valley since 1984.
Prices shown are the published ranges for each service. When you book, you approve the posted range. If the job needs anything outside that scope, you see that price and approve it before any work begins.
Pick your service, see the price, and book online. A licensed tech arrives to do the work, not to sell you.