- BBB A+ Rated
- Mesquite Chamber of Commerce Member
- 30+ Years Experience
Drain Cleaning
A water heater rarely fails politely. It leaks on a holiday, quits before guests arrive, or dies in January when the incoming water is coldest. The good news: most water heater decisions are not emergencies. Repairs can usually wait a day. Replacements are planned projects. That means what matters is not which plumber parks closest to Rockwall, but which one sizes the unit right, installs it to code, and charges what was quoted.
James Armstrong Plumbing repairs and replaces tank and tankless water heaters across Rockwall from our shop in Mesquite. A licensed Master Plumber leads the company, we have worked on North Texas water heaters since 1995, and we hold a BBB A+ rating with 4.8 stars on Google. We install State water heaters and service most major brands.
Call 214-918-6109 for a straight diagnosis and a firm price before any work starts.
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.
Get My Free Quote
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.
Special Offers
Save BIG With James Armstrong Plumbing
$100Off
$500Off
Mention your coupon when you call or we’ll apply it automatically from your quote request.
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
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
Why Rockwall Homeowners Call Us For Help
Licensed & Certified Technicians
James Armstrong holds the highest plumbing license Texas issues. Gas water heaters and tankless conversions are exactly what that license is for.
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
Water heater replacement is permitted work in Rockwall with a city inspection. We handle both, and any bid that skips the permit is telling you about the rest of the job.
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
Latest Tips
From Our Blog
How a Plumber for Slab Leak Helps Detect the Issue
Kitchen Plumbing Problems Homeowners Often Ignore
Plumbing Maintenance Checklist for Each Season
Emergency Plumbing: 5 Urgent Signs Your Plumbing System Needs Immediate Professional Help
Why Homeowners Choose CIPP for Long-Lasting Sewer Line Repair
How to Choose a Trusted Plumber for Common Home Plumbing Problems
FAQ
Frequently Asked Questions
Have questions? We’ve got answers. Can’t find what you’re looking for? Give us a call anytime.
For urgent daytime calls, plan on 75 to 120 minutes from our Mesquite shop, depending on Interstate 30. Scheduled repairs and replacements get a firm arrival window when you book, and same-day service is often possible when you call 214-918-6109 before noon.
Age and failure type decide it. Component faults on younger units are repairs. Tank body leaks are always replacements, and units past ten years with significant faults usually lose the repair-versus-replace math. We give you both numbers and let you choose.
Typical DFW ranges run $1,200 to $3,500 for a tank installation and $2,500 to $6,500 for tankless, including equipment and labor. Venting, gas line work, and code items move the number, and all of it appears in your written quote first.
Eight to twelve years for tanks in our hard water, longer with annual flushes. Tankless units run twenty years or more with yearly descaling.
For busy multi-bath households planning to stay put, usually yes: endless hot water and lower operating cost. For light hot water use, a high-efficiency tank often wins. We quote both side by side and tell you which one we would put in our own house.
Yes, both, plus tankless. James Armstrong holds a Texas Master Plumber license with a gas endorsement, which Texas law requires for gas appliance work.
Make sure it sits in a proper pan with a drain line routed to the outside, and consider a leak detector. An attic failure without those drains through your ceiling. We correct this setup on every attic job.
Once a year in North Texas water. It quiets the popping, protects the elements, and adds years to the tank.
Yes. Water heater replacement is permitted and inspected work, and we handle the process as part of the job.
We install State water heaters and service most major brands, tank and tankless. On new installs we recommend units with strong local parts and warranty support.
Call 214-918-6109. After-hours emergency response carries a flat $199 fee, stated before we dispatch. We are honest that we are not a 24/7 call center. You reach real people who actually show up.
Yes. James Armstrong holds Texas Master Plumber license M-39428 with a gas endorsement, and we carry full insurance on every job.
Comparison
Repair or Replace: The Honest Framework
| Situation | Our Call |
|---|---|
| Under 6 years old, single component fault | Repair |
| 6 to 10 years old, minor faults | Repair now, budget for replacement |
| Over 10 years old, any significant fault | Replacement usually wins the math |
| Tank body leaking, any age | Replace. There is no tank repair |
| Rusty hot water from an older unit | Usually replace |
| Element, thermostat, valve, or igniter fault | Repair |
We give you both numbers, repair and replace, and let you decide. Nobody here works on commission, so the recommendation is the recommendation.