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- Mesquite Chamber of Commerce Member
- 30+ Years Experience
Water Heater Repair and Replacement in Frisco, TX
James Armstrong Plumbing repairs and replaces water heaters in Frisco, TX. Master Plumber James Armstrong holds Texas License M-39428.
We size the unit to the house and install it to the 2024 codes Frisco adopted effective March 1, 2026, then pull the permit and stay for the inspection. You get a flat written quote before anything comes out.
Our shop is at 844 Dalworth Dr in Mesquite, about 50 minutes from Frisco.
Replacement is planned work with a scheduled start, so the distance costs you nothing. If a tank is pouring water into your attic right now, shut off the water supply and the power or gas to the unit, then call a plumber based closer to you.
Licensed Master Plumber
License #M39428
The “Armstrong Clean Promise"
No mess, no stress — that's our guarantee.
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Our Services
Comprehensive Plumbing Solutions for Homes & Businesses in Frisco
Most Requested 
Plumbing Repairs and Installation
Get fast help from a trusted plumber in the DFW for leaks, fixture installs, and upgrades. We restore your plumbing with smooth, reliable work.
Water Heater Services
From quick fixes to full replacements, our water heater services in Dallas-Fort Worth, keep your hot water steady. We work on all standard and tankless models.
Most Requested 
Drain Cleaning Services
Stubborn clogs disappear with our drain-cleaning solutions in Texas. We clear the buildup fully so your drains flow the way they should.
Sewer Line Plumbing
Our team handles sewer line plumbing in the DFW , with careful inspection and precise repairs. We keep wastewater moving safely away from your home.
Gas Line Plumbing
Safe and reliable gas line plumbing in the DFW, is just a call away. Whether it’s a leak, repair, or new line, we follow strict safety standards.
Emergency Service
Emergency Service — Available 24/7
Burst pipe? Major leak? Don’t wait. Our emergency team serves the entire DFW area around the clock.
Technician available now
Why Choose Us
Why Frisco Homeowners Choose James Armstrong Plumbing
Licensed & Certified Technicians
Our plumbers are fully licensed, professionally trained, and committed to delivering quality workmanship that meets today’s industry standards.
Transparent, Upfront Pricing
No hidden fees and no surprises. Just clear, honest pricing you can trust before we begin any repair or installation.
Fast & Friendly Service
We respect your time. Our technicians arrive promptly, work efficiently, and treat you and your home with courtesy and care.
The Armstrong Clean Promise
Floor protection, shoe covers, and a meticulous cleanup on every job. If your home isn’t cleaner than we found it, we pay for the cleaning.
5-Star Rated by Homeowners Like You
Local families choose us for reliable plumbing and friendly service. Your comfort, safety, and satisfaction are the reasons we do what we do.
Emergency Response Available
Afterhours and weekend emergency calls accepted. $199 emergency service fee — no surprises. Call (214) 918-6109.
Frisco Is On Its Second Water Heater, and Sometimes Its Third
Most water heater pages are written for someone buying their first one. In Frisco that is usually not who is reading.
Frisco’s big early developments went up between roughly 2000 and 2005, which makes them twenty to twenty-five years old. A tank water heater lasts somewhere around eight to twelve years here. Do the arithmetic and those houses replaced once around 2013 to 2015, and a lot of them are due again right now.
That matters because the second time around, people remember the first time. They remember the install that took two hours and the unit that died in year seven. They remember finding out afterward that no permit was pulled. They remember the pan that turned out to have no drain line.
So this page is written for that reader. Here is what actually determines whether the second one lasts longer than the first.
The Install Matters More Than the Unit
North Texas builds slab-on-grade, so there is nowhere below the house to put a water heater. In Frisco’s post-2000 stock that means attics and upper-floor closets, which is where eighty gallons can come through a ceiling instead of onto a garage floor.
Frisco adopted the 2024 codes with local amendments effective March 1, 2026. Under those codes, a water heater installed where a leak would damage the structure or finishes below has to sit in a pan. What an inspector is checking:
- A pan under the full footprint of the unit, at least an inch and a half deep, in corrosion-resistant material.
- A pan drain of at least three-quarters of an inch, run as an indirect waste line and terminated somewhere a person will actually see water coming out.
- A properly run temperature and pressure relief discharge line, unthreaded at the end, terminating where a discharge is visible.
- Thermal expansion control where a backflow preventer has made the system closed, which is common in newer construction.
- A pan that is not being used as a storage shelf, which is one of the more common attic write-ups.
Worth knowing honestly: where an existing water heater never had a pan drain installed, code does not require adding one on a straight replacement. That does not mean you should skip it. It means we will tell you it is optional, explain what an attic failure costs without it, and let you decide rather than billing it as mandatory.
Codes and amendments change. Confirm requirements for your specific install with Frisco Building Inspections at 972-292-5301. This is general information, not legal advice.
Frisco Makes the Permit Fast, and That Cuts Both Ways
Frisco offers Self Service permits, which give immediate access for a short list of residential replacements. Water heaters are on that list, alongside heating and cooling systems, roofs replaced with the same material, doors and windows, and minor electrical and plumbing work.
That is genuinely good news. It means a water heater replacement in Frisco does not sit in a plan review queue.
What it does not mean is that the requirements went away. A fast permit is still a permit, the work is still inspected, and Frisco is stricter than its neighbors about who is allowed to do it:
- Every contractor working in Frisco must be registered with Building Inspections before a permit is issued. Registration requires an application, a fee, a Texas driver’s license, a trade license verified through the Texas State Board of Plumbing Examiners, and proof of liability insurance. Registered contractors receive an R-Number.
- A licensed journeyman must be on site at all times while plumbing work is in progress. Violating that can revoke a contractor’s registration to do business in Frisco.
- You can check any contractor’s registration yourself through Frisco’s eTRAKiT system.
As of August 1, 2026 Frisco also applies a 6 percent technology fee to all permits under Ordinance 2026-05-40.
If your last water heater went in without a permit, that is worth knowing now rather than at resale, when a buyer’s inspector asks.
Why Frisco Tanks Do Not Reach Their Rated Life
Frisco is supplied by the North Texas Municipal Water District, and that treated water is moderately hard. Hard water drops calcium and magnesium out as scale on the bottom of the tank, and that scale layer insulates the burner from the water it is supposed to be heating. The unit runs longer for the same hot water, and the tank bottom runs hotter than it was designed to.
Scale also interferes with the anode rod, whose entire job is to corrode so the tank lining does not. When the anode is spent and nobody has looked at it, the lining is next.
Neither of those is exotic. Together they are why a unit rated for a dozen years quietly becomes an eight-year unit in Collin County, and why we flush and check rather than defaulting to a quote.
Meet James Armstrong
Meet the Master Plumber Serving Rowlett: James Armstrong
James Armstrong has been a Mesquite-resident Master Plumber since 1995. What began as helping neighbors fix leaky faucets turned into a career — and eventually a family business, built on one simple rule: treat people right, do the job with integrity, and always stand behind your work. Today, James and his crew serve Rowlett, Sachse, Garland, and the broader east DFW metro, with most calls dispatched and on-site within 25 minutes of the Mesquite headquarters at 844 Dalworth Dr.
“In thirty years working Rowlett, Garland, and the Lake Ray Hubbard side of the metro, the drain calls almost always come down to two things: tree roots in the older Rowlett neighborhoods near the lake, and grease and hair buildup in the newer developments off Liberty Grove and Schrade Road. We camera-inspect first, then choose hydro-jetting or snaking based on what we actually see — not on what gets you to the highest invoice.”
James Armstrong, Master Plumber • Texas License M-39428 • Founder, James Armstrong Plumbing
Every job comes with the Armstrong Clean Promise — we leave your home cleaner than we found it, guaranteed. No excuses, no mess, no shortcuts. It’s the kind of commitment that’s earned us thousands of repeat customers and a reputation across the DFW metroplex for honest, reliable work.
Emergency Calls Accepted After Hours & Weekends as well.
Our Process
What to Expect When You Call
Call or Book Online
Speak with a real person, not a call center. We schedule at your convenience.
Same-Day Inspection
A licensed plumber evaluates your issue on-site. No guesswork.
Upfront Quote
You approve the price before work begins. The number you see is final.
Clean, Expert Work
Armstrong Clean Promise — we leave your home better than we found it.
Follow-Up Guarantee
We check in within 24 hours and follow up to ensure everything holds.
Free estimate · No obligation · Real person answers
Repair or Replace
| What you are seeing | Usually means |
|---|---|
| No hot water, gas unit, pilot will not stay lit | Repair. Thermocouple or gas control |
| No hot water, electric unit | Repair. Element or thermostat |
| Not enough hot water, was fine last year | Often sediment. Flush and test first |
| Rumbling or popping while heating | Sediment layer. Flush now, and it may be late |
| Rust-colored hot water | Tank lining. Replacement |
| Water in the pan or at the base | Tank is leaking. Replace |
| Unit at 8 years or more, in an attic | Plan the replacement rather than wait for it |
A leaking tank is a replacement no matter who tells you otherwise. Most of the rest of that list is a repair.
Sizing, and the Complaint We Hear Most
The right size depends on bathroom count, how many people live in the house, and how much hot water gets used at the same time. It does not depend on what happened to be installed before, which is how undersizing gets repeated from one replacement to the next.
Undersizing is the single most common complaint we hear about somebody else’s install. Oversizing costs you every month in standby loss. Larger Frisco homes sometimes run two units, and where that is the case they do not necessarily need replacing at the same time.
We install State water heaters, a brand we have partnered with for years.
Tankless is worth a real conversation on some Frisco homes, particularly where an attic tank is being retired and the failure risk or the space is the actual driver. It is a bigger install with gas line and venting implications. Ask during the quote and we will give you a straight comparison.
Service Areas
Serving Communities Across Dallas-Fort Worth
- Allen
- Anna
- Arlington
- Azle
- Balch Springs
- Bedford
- Benbrook
- Blue Mound
- Blue Ridge
- Burleson
- Celina
- Colleyville
- Combine
- Dallas
- Everman
- Fairview
- Farmersville
- Flower Mound
- Forest Hill
- Fort Worth
- Frisco
- Garland
- Grand Prairie
- Plano
- Richardson
- Rowlett
- Sunnyvale
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FAQ
Frequently Asked Questions
Have questions? We’ve got answers. Can’t find what you’re looking for? Give us a call anytime.
Yes. We run out of our shop at 844 Dalworth Dr in Mesquite, about 25 minutes from Rockwall past Rowlett. Calls that come in before noon during business hours can usually be reached the same day at regular rates. After hours and on weekends we charge a flat $199 dispatch fee, and we tell you that number on the phone before anyone gets in a truck.
A flat $199 dispatch fee for after-hours and weekend calls, stated on the phone before we come out. If the job needs more than the dispatch, you get a flat written quote before work starts. We do not add an emergency premium at invoice time.
In most Rockwall homes it is where the supply enters the house, commonly in the garage, along an exterior wall, or in a box near the front of the property line. Turn it clockwise to close. Individual sinks, toilets, and water heaters also have their own shutoffs. Find your main now, while nothing is wrong, rather than hunting for it in the dark during an actual emergency.
Shut off the main water supply before things thaw. Ice expands and splits pipe while everything is frozen, so nothing leaks yet, and the flood arrives on the thaw when the ice plug melts and water reaches the split all at once. If you lost pressure during a freeze, treat that as the warning and shut the main rather than waiting to see what happens.
Yes. Backing up into a tub or shower means the blockage is downstream of the whole house rather than in one fixture. Stop running water anywhere in the house, including the washing machine and dishwasher, because every gallon you send down makes it worse, then call 214-918-6109.
Leave the building immediately with everyone and every pet. Do not touch light switches, appliances, or any phone inside, and do not start a vehicle in the garage. Do not open or close any gas valve. From a safe distance outside, call 911, then call Atmos Energy at 866-322-8667, the natural gas provider for Rockwall. Do not go back inside until Atmos or the fire department says it is safe, and call a plumber only after that.
A burst or spraying pipe, a split water heater tank, sewage backing up into tubs or showers, no water in the house, or a slab leak you can hear running all warrant a call tonight. One clogged toilet with another working, a water heater that is out but not leaking, a slow drain, or a dripping faucet will almost always keep until morning. Call either way and we will tell you honestly which one you have.