- BBB A+ Rated
- Mesquite Chamber of Commerce Member
- 30+ Years Experience
Plumber in Sunnyvale, TX
For over 30 years, James Armstrong Plumbing has delivered plumbing service in
Sunnyvale, TX from our shop in Mesquite. Master Plumber James Armstrong, Texas
License M-39428, personally oversees every job. BBB A+ accredited since 2018 and
a Mesquite Chamber of Commerce member.
Plumbing problems do not wait for a convenient time. Leaks, clogs, and failed
fixtures cost more the longer they sit. James Armstrong Plumbing handles both
residential and commercial work in Sunnyvale with 30+ years of field experience
and a flat-rate quote before any work begins.
Same-Day Service — Call Before Noon • Most calls are answered within 15 minutes
Licensed Master Plumber
License #M39428
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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Our Services
Our Plumbing Services in Sunnyvale, TX
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.
Emergency 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
Proudly partnered with leading brands
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
What to Look For in a Sunnyvale Plumbing Company
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.
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
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.
We handle leak detection, slab leak repair, drain cleaning, water heater
installation and repair, sewer line inspection and repair, gas line work, and
re-piping. Licensed and insured, residential and commercial. Every job is
overseen by Master Plumber James Armstrong, License M-39428.
Calls received before noon Monday through Friday are typically scheduled the
same day. After-hours, weekend, and holiday calls are accepted for a flat $199
dispatch fee. Call 214-918-6109 to confirm current availability.
Yes. Licensed technicians handle both, from a simple faucet repair to a full
water heater installation or slab leak repair. We work to the applicable city
and state codes on every job.
Yes. Master Plumber James Armstrong holds Texas License M-39428 and personally
oversees every job. All technicians are licensed, insured, and background
checked.
If you have an active leak, shut off the main water supply if you can reach it
safely and keep people away from standing water near outlets or panels. If you smell gas, leave the house, call 911, then call Atmos Energy at 866-322-8667.
Call James Armstrong Plumbing at 214-918-6109 once the area is safe.