Plumbing Repair and Installation in Richardson, TX

We handle the full range of residential and light commercial plumbing repair in Richardson: leaking pipes and fittings, slab leaks under the foundation, water heater repair and replacement, faucet and fixture installation, toilet repair, low water pressure, burst pipes after a freeze, sewer line problems, gas line work, and whole-house repiping when old lines finally give out.

We are BBB A+ accredited since 2018 and rated 4.8 stars on Google. We quote a flat rate before we start the work, not after. We pull permits when the job calls for one. And when a repair is not worth doing, we say so, even when the replacement would be the bigger sale.

Same-Day Service — Call Before Noon • Most calls are answered within 15 minutes

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Licensed Master Plumber

License #M39428

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The “Armstrong Clean Promise".

We leave your home cleaner than we found it, or we pay for the cleaning. No mess, no stress — that's our guarantee.

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Any Mainline Cleaning
Includes camera inspection. Main line or any household drain.
*Offer ends when monthly slots are filled

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Replacement Excavation
Full trenchless or traditional excavation.
*Offer ends when monthly slots are filled

Mention your coupon when you call or we’ll apply it automatically  from your quote request.

Coupons can’t be combined. One per household per service visit

Our Services

Comprehensive Plumbing Solutions
for Homes & Businesses

At James Armstrong Plumbing, we handle every aspect of your plumbing
system — from quick fixes to complex installations.
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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.

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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.

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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.

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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.

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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.

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Meet James Armstrong

Meet the Master Plumber Serving DFW: 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 Mesquite, 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.

Why Choose Us

Why Richardson Homeowners Call Us

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Licensed & Certified Technicians

A licensed Master Plumber, M-39428, with a gas endorsement. Top license the state issues.

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Transparent, Upfront Pricing

Flat rate, quoted before we start. Not after your wall is open.

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Fast & Friendly Service

We respect your time. Our technicians arrive promptly, work efficiently, and treat you and your home with courtesy and care.

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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.

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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.

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Emergency Response Available

Afterhours and weekend emergency calls accepted. $199 emergency service fee — no surprises. Call (214) 918-6109.

Emergency Calls Accepted After Hours & Weekends as well.

Plumbing Emergency? We Take After-Hours & Weekend Emergency Calls. (214) 918-6109 • $199 emergency dispatch fee • Most calls responded to same day.
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Our Process

What to Expect
 
When You Call

From your first call to our follow-up check-in —
here’s exactly how we take care of you.
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01
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Call or Book Online

Speak with a real person, not a call center. We schedule at your convenience.

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Same-Day Inspection

A licensed plumber evaluates your issue on-site. No guesswork.

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Upfront Quote

You approve the price before work begins. The number you see is final.

04
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Clean, Expert Work

Armstrong Clean Promise — we leave your home better than we found it.

05
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Follow-Up Guarantee

We check in within 24 hours and follow up to ensure everything holds.

Free estimate · No obligation · Real person answers

Customer Reviews

What Our Customers Say

4.8
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Service Areas

Serving Communities Across
Dallas-Fort Worth

Latest Tips

From Our Blog

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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.

Our friendly team is available 24/7 to help you.

Most repairs run $150 to $600. A faucet repair is $150 to $350. A toilet repair is $150 to $400. A shutoff valve is $150 to $400. An accessible water line leak is $300 to $800. Water heater replacement is $1,200 to $3,500. A slab leak is $1,500 to $15,000 and up. We quote the number before we start, not after your wall is open.

Usually a slab leak, which is a hot water line failing under the foundation. North Texas clay expands and contracts, the slab moves, and the copper under it eventually rubs through. It is the most commonly ignored serious plumbing symptom in this area. Other signs are a water bill that jumped for no reason, the sound of running water when everything is off, and new foundation cracks. Do not wait on it. Call 214-918-6109.

Either in the garage where the water line enters the house, or at the street in a concrete or plastic box in the ground near the curb marked WATER. Many older Richardson homes only have the street one. Go find it today, turn it off, turn it back on. You learn where it is and you find out whether it still works, because old valves seize and that is a bad thing to discover at midnight. The street box usually needs a meter key, which is about $15.

Two likely causes. A failing pressure regulator, which is a $350 to $700 fix. Or galvanized supply lines rusting closed from the inside, which is common in 1950s and 1960s Richardson homes. If your water also runs brown or rusty in the morning, it is the pipe. No repair fixes that, because the inside diameter is shrinking and it will keep shrinking. That points to a repipe.

Yes. Cities require permits and inspections for water heaters, gas work, repiping, and sewer repair. A lot of the market skips it because a permit means an inspector shows up and looks at the work. Unpermitted work becomes a problem when you sell the house and the buyer's inspector finds it. We pull them, itemize them separately, and do not mark them up.

No. We are Monday through Friday, 8:00 AM to 5:00 PM. Call before noon and we can usually get to you the same day. After hours and weekends carry a flat $199 dispatch fee, quoted on the phone before anyone gets in a truck. And if what you have can wait until morning, we will tell you and save you the money.

 

A running toilet, which is almost always a $15 flapper and a ten-minute job. Low pressure at one faucet, which is usually a clogged aerator you can rinse out for free. A slow bathroom sink, where the clog is hair wrapped around the stopper six inches down. A clogged toilet, with a $25 closet auger. Stop at anything involving gas, anything behind a wall or under the slab, anything requiring you to cut into a live pipe, and anything electrical near water.

No. They do not clear a real clog, they sit there on top of it, and they corrode cast iron, which Richardson has a great deal of. And when a plumber finally puts a hand or a cable into that line, the chemical is still present and it splashes. If you already poured some in, tell us on the phone. Nobody will be annoyed. We will bring different gear.

The garden hose was probably left connected over the winter. The hose traps water inside the valve, it freezes, and it splits the valve body. You find out in spring when you turn it on and water comes out inside the wall instead. It is a $250 to $500 fix, and the prevention is free: disconnect your hoses before the first freeze.

When the thing you are repairing is at the end of its life. A water heater over 12 years old needing a $400-plus repair should be replaced. Galvanized supply lines that have rusted closed cannot be repaired into working. A cast iron drain line that clogs every few months is not a clog problem, it is a pipe problem. We will tell you which one you have, including when the answer is that the repair we could sell you today is a waste of your money.

Yes. Residential plumbing repair and installation, plus light commercial work for offices, retail, restaurants, clinics, and multi-unit residential.

We are in Mesquite, about 20 miles out, and we are honest about that. During business hours, if you call before noon, we usually make it the same day. If somebody closer to you can get there faster on a genuine emergency, take that call. We would rather you were safe.

Leave the building. Do not flip a switch, unplug anything, or use your phone inside. Get people and pets out, leave the door open, and from a safe distance call 911 and Atmos Energy at 866-322-8667. Atmos runs a 24-hour line and will shut the gas off at no charge. Call us afterward for the repair.

Our friendly team is available 24/7 to help you.

Comparison

Something Is Wrong and You Do Not Know What It Is

That is most of the calls we get. Here is how to narrow it down before you pick up the phone.

What you are seeingWhat it usually isWhat it usually costs
Warm spot on the floorSlab leak. Hot water line under the foundation.$1,500 to $15,000+
Water bill jumped and nothing changedSlab leak, or a running toilet. Check the toilets first.$15 to $15,000
You hear running water with everything offLeak somewhere. Often under the slab.Locate first
Foundation cracks plus plumbing troublePossible slab leak. Worth looking.Camera and locate
Low pressure at one fixtureAerator or the fixture’s own valve. Often free.$0 to $200
Low pressure everywherePressure regulator, or galvanized supply lines closing up with rust.$350 to $15,000
Brown or rusty waterGalvanized pipe corroding from the inside.Points to repipe
Toilet runs constantlyFlapper. A $15 part.$15 to $250
One drain slow, everything else fineThat fixture.$150 to $350
Multiple drains backing upMain line. Stop using water.$250 to $600+
Tub gurgles when you flushMain line.$250 to $600+
No hot waterWater heater. Often a cheap part.$150 to $3,500
Popping or rumbling from the water heaterSediment. Flush it.$150 to $250
Water at the base of the toiletWax ring, and check the flange.$250 to $450
Dripping outdoor faucet after a freezeSplit hose bib. Very common here.$250 to $500
Gas smellLeave. Call 911 and Atmos at 866-322-8667.Utility first

That top row matters most. In North Texas, a warm spot on the floor is the single most commonly missed serious plumbing symptom, and it is the one people ignore the longest. Expansive clay moves, the copper under the slab moves with it, and eventually a hot line rubs through. If you have one, do not wait.

The Thing Nobody Tells You: Find Your Shutoff Today

Do this today, while nothing is wrong. It takes five minutes and it is worth more than anything else on this page.

Where the main shutoff is.

  • In the garage, on the wall where the water line enters the house.
  • Or at the street, in a rectangular concrete or plastic box in the ground near the curb, usually marked WATER. Many older Richardson homes have only this one.

Go find it. Turn it off. Turn it back on.

Two things come out of that. You learn where it is and which way it turns, so you are not learning that at midnight with water on your feet. And you find out whether it still works. Old valves seize. A valve that has not moved in twenty years frequently will not close when you finally need it to, and that is a terrible time to discover it. If yours is stuck or weeping, replace it. That is $150 to $400 and it is the cheapest insurance in the house.

Buy a meter key. The street box usually needs one. It is a long L-shaped bar, about $15 at any hardware store. Put it in the garage and forget about it.

Tell everyone in the house. Take a photo of the valve on your phone.

We are telling you this instead of selling you something, and it will save some reader of this page thousands of dollars in water damage. That is the point.