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- 30+ Years Experience
Emergency Plumbing in Rockwall, TX
If water is running and you cannot stop it, do this before you keep reading.
Shut off the water. Most Rockwall homes have the main shutoff where the supply enters the house: in the garage, on an exterior wall, or in a box near the front of the property line. For one fixture, the stop valve is under the sink or behind the toilet.
If you smell gas, leave the building first with everyone in it, including pets. Do not flip switches or use your phone inside. Once you are outside and away, call 911. Then call Atmos Energy at 866-322-8667. Atmos is the gas utility for Rockwall and will make the line safe. Call us at 214-918-6109 for the repair once the area has been cleared.
For everything else, call 214-918-6109.
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
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 Rockwall 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 emergency calls accepted. Call (214) 918-6109.
What Actually Goes Wrong in Rockwall
Burst pipes after a freeze
North Texas usually gets one or two Arctic events between December and February.
The thing most homeowners do not expect is that the flood does not happen during the freeze. It happens on the thaw. Ice expands and splits the pipe while everything is frozen solid, so nothing leaks yet. Then the temperature climbs, the ice plug melts, and the water finds the split all at once, often while nobody is home.
If you lost water pressure during a freeze, that is the warning, and the right move is to shut the main before things warm up rather than waiting to see what happens.
Attic water heater failures
North Texas builds slab-on-grade, so there is nowhere below the house to put a water heater. In Rockwall’s 1990s and newer construction they sit in attics and upper-floor closets.
When one of those lets go it does not make a puddle, it drains the tank through the ceiling. If you see a stain spreading below an attic unit, shut the cold inlet and the power or gas immediately.
Sewer backups
Backing up into a tub or shower means the blockage is downstream of the whole house, not in one fixture. Stop running water anywhere in the house, including the washing machine, because every gallon you send down makes it worse.
Slab leaks running under the foundation
Rockwall sits on the same expansive clay as the rest of the metro, which works on the copper and drain lines through the slab until something gives.
A leak you can actually hear running with everything shut off is soaking the ground under your foundation, and that is worth calling about tonight.
Main line breaks
Rockwall is supplied by the North Texas Municipal Water District. A break between the meter and the house is yours, and it usually shows up as no pressure plus a wet spot in the yard that has no reason to be there.
What After Hours Actually Costs
A $132 (5–10 PM) or $184 (10 PM–8 AM) fee for after-hours calls. We say it on the phone before we come out.
That is the whole disclosure. We are not going to quote you a low number now and discover an emergency premium later, and we are not going to advertise round-the-clock service and then explain the surcharge when the invoice arrives. If the job is more than the dispatch, you get a flat written quote before work starts, same as any other day.
Calls that come in before noon during business hours can usually be reached the same day at regular rates.
Shut the Water Off First
Before you do anything else, if water is actively running where it should not be, stop it at the source. This is the single most useful thing you can do while help is on the way, and it is the difference between a repair and a repair plus a restoration.
If you cannot find or turn the main, call us and we will talk you through it on the phone while we are on the way.
Where the shutoffs are in most Rockwall homes:
Under the fixture
Sinks and toilets have their own small valve on the supply line behind or beneath them. Turn it clockwise until it stops. For one leaking fixture this is all you need.
Water heater
There is a shutoff on the cold inlet at the top of the tank. Close it, and if the tank is leaking, kill the power at the breaker or turn a gas unit’s control to off.
The whole house
Most Rockwall homes have a main shutoff where the supply enters, commonly in the garage, at an exterior wall, or in a box near the front of the property line.
Turn it clockwise. It is worth walking outside right now, while nothing is wrong, and finding yours. In an actual emergency nobody wants to be hunting for it in the dark.
Meet James Armstrong
Meet the Master Plumber Serving Rockwall: 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 Rockwall, 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 of plumbing across the DFW metro, including Rockwall, the drain calls almost always come down to two things: tree roots in the older neighborhoods, and grease and hair buildup in the newer developments. 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.
No hassle estimate · No obligation · Real person answers
What Counts as an Emergency, and What Can Wait
We would rather tell you to go to bed than charge you an after-hours fee to look at something that will keep until morning. Here is our honest split.
| Situation | Our read |
|---|---|
| Burst or actively spraying pipe | Emergency. Shut the main and call |
| Water heater tank split, especially in an attic | Emergency. Shut the water and the power or gas |
| Sewage backing up into tubs, showers, or floor drains | Emergency. Stop using water in the house |
| No water at all in the house | Emergency, and often a main line issue |
| Slab leak you can hear running | Emergency. Shut the main |
| Gas smell | Not a plumbing call at all. Use the steps at the top of this page |
| One toilet clogged, another working | Usually waits. Shut its valve and stop using it |
| Water heater out, no leak | Usually waits. Cold showers beat an after-hours fee |
| Slow drain, dripping faucet, running toilet | Waits. Call during business hours |
| Water stain on a ceiling with nothing actively running | Usually waits, but same-day |
Call us either way. If it can wait, we will say so and book you for regular hours at regular rates.
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 we charge a $132 (5–10 PM) or $184 (10 PM–8 AM) fee, and we tell you that number on the phone before anyone gets in a truck.
A $132 (5–10 PM) or $184 (10 PM–8 AM) fee for after-hours 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.