Tankless Water Heater Installation
Endless hot water, lower energy bills — upgrade to tankless the right way.
Every job starts with a $29 service fee and a written quote.
Starts with a $29 service fee and a written quote.
Licensed & Insured
TSBPE M-43562
Same-Day Service
Mon–Sat · Closed Sunday
Upfront Pricing
No Surprises
Professional Tankless Water Heater Installation
Tankless water heaters heat water on demand, so you never run out — and they use less energy doing it. MasterTex Plumbing & Drain sizes, installs, and services tankless units for DFW homeowners. We help you choose the right unit for your home's flow rate, install it to code, and keep it maintained so it lasts 20+ years.
The Tankless Water Heater Installation Difference
Endless Hot Water
Tankless heats water on demand — no more cold showers when guests visit.
Lower Energy Bills
No standby heat loss from keeping 40 gallons hot all day. Tankless uses less energy.
Longer Lifespan
Tankless units last 20+ years — nearly double a standard tank — with proper maintenance.
Space Saving
Wall-mounted and compact, tankless frees up closet or garage space.
Our Tankless Water Heater Installation Process
Assess
We size the unit to your home's hot-water demand and gas or electric supply.
Quote
You get an upfront price for the unit and installation — no surprises.
Install
We install to local code, vent properly, and connect gas or electric safely.
Test & Walk Through
We verify hot water delivery and show you how to maintain the unit.
Make It a Monthly Payment
A bigger project doesn't have to mean a big one-time hit. Estimate what it costs per month, then call us to talk financing options.
Monthly Payment Estimator
Adjust the numbers to see what a larger project could cost per month.
Rates vary by credit and provider — ask us about current offers when you call.
Estimated Monthly Payment
$164/mo
Estimate only — not an offer of credit. Actual rates and terms depend on the lender, your credit, and project scope.
Which Solution Fits Your Needs?
Not sure which service is right for your situation? Use this quick comparison to find the best fit, then call us for a free quote.
| Service | Best For | Typical Price | Turnaround |
|---|---|---|---|
| Drain Cleaning | Slow or clogged drains and recurring clogs | $29 service fee | Same day · 30–60 min on-site |
| Sewer Line Repair | Sewer backups, root intrusion, and broken lines | $3,375 min (first 5 ft), then $425/ft tunneling · $180/ft trenching | Same day (spot repair) · 1–2 days (full line) |
| Leak Detection | Hidden leaks, slab leaks, and unexplained high water bills | $29 service fee | Same day · 1–2 hrs on-site |
| Water Heaters | No hot water, and tank or tankless replacement | $29 service fee | Same day (repair) · same day (tank swap) |
| Hydro Jetting | Stubborn grease, scale, or recurring clogs | $29 service fee | Same day · 1–2 hrs on-site |
| Tankless Water Heaters | Running out of hot water or upgrading to energy-efficient | $29 service fee | Same day – 1 day |
| Camera Inspection | Recurring backups, home purchases, and sewer diagnosis | $29 service fee | Same day · 45–90 min on-site |
| Slab Leak Detection | Warm floor spots, high water bills, foundation cracks | $29 service fee | Same day · 1–3 hrs on-site |
| Repiping | Low pressure, discolored water, recurrent leaks, old pipes | $1,050/drop slab · $500 pier & beam | 3–5 days |
| Water Filtration | Hard water, chlorine taste, scale buildup, and whole-home filtration | $29 service fee | Same-day test · 1-day install |
| Emergency Plumbing | Burst pipes, sewage backups, major leaks, no water | $29 service fee | Fast response · Mon–Sat |
"I had a leaking water heater that needed replacing and called, thinking it would take days. They called back with a fair quote and came out the same day to install. Went above and beyond and did a great job. Highly recommend!"
"I was extremely impressed with MasterTex's service. They responded promptly, and the technician arrived right on time. Very professional. I couldn't be happier with his work. I'll definitely use MasterTex for all my future plumbing repairs!"
"We had old, leaky outdoor valves that needed attention. They diagnosed the problem, gave me options, and got to work quickly. Connor and his team were responsive and made sure the job was done right. I'd definitely call them again."
"I had a great experience with the whole team. The plumber arrived right at the start of the arrival window, which was greatly appreciated. He communicated well and solved the issue quickly, all at a fair price. Highly recommend!"
"AB was great, very thorough and explained everything he was doing as he inspected my home for potential leaks. He also taught me how to work with my hot water heaters. They also responded quickly to my call, even after hours."
"Great team and owner. Excellent and fair work. Explained everything through the process. No surprise extra charges and did a great job on the repair."
Tankless Water Heater Installation FAQs
How much does a tankless water heater cost installed?
Tankless installation starts with a $29 service fee and a written quote for the unit and the install, confirmed after we review your gas or electric supply and any venting needs.
Will a tankless water heater work for my whole house?
Yes, when properly sized. We calculate your peak flow rate (showers plus appliances running at once) and match it to the right unit so you never run out.
Do tankless water heaters need maintenance?
Yes — an annual flush to remove mineral scale keeps a tankless unit efficient and extends its life, especially with DFW's hard water. We handle this for you.
How long does installation take?
A standard tankless swap or new install is usually completed in one day.
Can you convert from a tank to tankless?
Absolutely — most installations are retrofits. We handle gas line upgrades, venting, and any electrical changes needed for the conversion.
Need Tankless Water Heaters? Call MasterTex Today.
Same-day appointments available. Licensed, insured, and ready to help right now.