- BBB A+ Rated
- Mesquite Chamber of Commerce Member
- 30+ Years Experience
Plumber in Lancaster, TX
James Armstrong Plumbing has served homes and businesses across the Dallas area since 1995. Master Plumber James Armstrong, Texas License M-39428, oversees every job personally.
We are BBB A+ accredited, family-owned, and licensed for residential and commercial work. Our shop is about 26 minutes from Lancaster.
Licensed Master Plumber
License #M39428
The “Armstrong Clean Promise"
No mess, no stress — that's our guarantee.
GET AN ESTIMATE NOW
Once you submit, we may reach out to you via phone, email, or text to fetch information, which you can opt out of at any time. We will never share your personal information with third parties for marketing purposes. Consent is not a condition of purchase. Message/data rates apply.
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 DFW 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.
The City of Trees, and What That Means for Your Sewer Line
Lancaster calls itself the City of Trees, and it has the tree canopy to back it up, over 600 acres of parks, nature preserves, and native Texas landscape. It is also one of the oldest communities in Dallas County, first settled in 1844 with a town laid out in 1852, and its historic district holds homes recognized on the National Register.
Both of those facts point to the same plumbing reality. Mature trees near older sewer lines are the most common cause of recurring drain problems we see in established neighborhoods. Roots find their way into small cracks or joints in a line, grow inside the pipe, and turn a slow drain into a full blockage over time. In a city with Lancaster’s tree canopy and housing age, that is a leading suspect any time a clog keeps coming back in the same spot.
Older housing near the historic square adds a second factor. Homes from that era may have aging cast iron or clay sewer lines, and older pipe gives roots more places to get in. Newer subdivisions on the edges of the city are a different picture entirely.
We camera-inspect before recommending a repair rather than guessing which one you have.
We do not run full 24/7 service, but we take calls before noon on weekdays for same-day scheduling, and after-hours calls for a $132 (5–10 PM) or $184 (10 PM–8 AM) fee.
Meet James Armstrong
Meet the Master Plumber Serving Lancaster: 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 Lancaster, Sachse, Garland, and the broader DFW metro from the Mesquite headquarters at 844 Dalworth Dr.
“In thirty years of plumbing across the DFW metro, including Lancaster, 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
Latest Tips
From Our Blog
Commercial vs Residential Plumbing: What Changes When a Business Calls
Why Is My Water Heater Leaking? A Full Guide
Grease Trap vs Grease Interceptor: Size, Flow and What Each Catches
Outdoor Faucet Freeze Protection, North Texas
How to Winterize Your Plumbing in North Texas
Hydro Jetting vs Snaking a Commercial Drain: Which One, and When
FAQ
Frequently Asked Questions
Have questions? We’ve got answers. Can’t find what you’re looking for? Give us a call anytime.
Yes. James Armstrong holds Texas Master Plumber License M-39428. James Armstrong Plumbing is BBB A+ accredited since 2018.
We do not run full 24/7 service, but we take after-hours emergency calls for a $132 (5–10 PM) or $184 (10 PM–8 AM) fee. Calls before noon on weekdays are usually scheduled the same day.
Our shop is in Mesquite, about 26 minutes from Lancaster depending on traffic.
Mature trees are usually the reason. Lancaster is known as the City of Trees, and roots find their way into sewer lines through small cracks or joints, then grow inside the pipe. Older homes near the historic district may also have aging cast iron or clay lines, which give roots more places to get in. A camera inspection confirms which it is.
Yes. Cleaning, spot repair, and full replacement are very different costs. We confirm the actual condition of the line before recommending any of them.
Leak repair including slab leaks, drain cleaning, sewer line repair and replacement, water heater installation and repair, gas line work, and general fixture installation and repiping.