Unit And Mounting
We supply the correctly sized electric tankless unit, mount it on a wall with proper clearance, and secure it to framing. Brands include Rinnai, Navien, Rheem, Stiebel Eltron, Eemax, and Bosch.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
Workmanship Guaranteed in Dallas
What Our Electric Tankless Install Includes
Every install we quote for Dallas includes the unit, the dedicated circuit, the plumbing tie-in, the permit, and the commissioning test. Add-ons like panel upgrades, water softeners, or recirculation pumps are quoted separately so you can see exactly what you are paying for.
Dedicated 240V Circuit
A new breaker, correct wire gauge, and a dedicated 240-volt run from the panel to the unit. We test voltage with a multimeter and label the breaker so the next tech knows what it feeds.
Plumbing Tie-In And Valves
Copper pipe or PEX tubing from the cold inlet to the hot outlet, with isolation valves and a pressure relief valve installed to UPC and IPC standards. Teflon tape on every threaded joint.
Permit And Inspection
We pull the City of Dallas permit and meet the inspector on site. You get the signed-off paperwork for your records and for resale.
Commissioning And Walkthrough
We purge air, check for leaks, verify GPM with a water flow meter, set outlet temperature, and walk you through the display, error codes, and how to flush the unit.
Warranty Registration
Manufacturer warranty is registered the same day, and our workmanship warranty is in writing. Keep the paperwork; it matters if you ever sell the home.
Electric Tankless Water Heater Installation Dallas TX Explained
Electric tankless water heater installation Dallas TX is the licensed trade of mounting a tankless unit, running a dedicated 240-volt circuit, and tying it into your home's hot water lines so water heats on demand instead of sitting in a 50-gallon tank. We size the unit to your fixtures, pull the permit, run copper pipe or PEX tubing, install isolation valves and a pressure relief valve, and commission the system with a water flow meter and multimeter before we leave.
Dallas homes deal with hard water, attic-routed plumbing, and summer ground temps that push incoming water past 80 degrees. That mix is why we test flow at every fixture and check panel capacity before quoting. If you have been searching for electric tankless water heater installation Dallas TX near me and want a straight answer on whether your 100-amp panel can carry a Stiebel Eltron or Eemax unit, we will tell you on the first visit.
Our Electric Tankless Installation Process
Five steps from first call to hot water. Most residential installs finish in one day; panel upgrades or long pipe runs can add a second.
01
Schedule
Call or book online — a real human picks up and confirms a 2-hour arrival window.
02
Diagnose
Licensed tech inspects on-site, then walks you through the cause and your options.
03
Fix
The job is completed to code and done right the first time — no shortcuts, no surprises.
04
Guarantee
Every job backed by a written workmanship warranty — and we stand behind it.
Tools And Methods We Use
Tools & Equipment
Multimeter
Verifies voltage at the element and confirms the circuit is delivering the correct 240 volts under load.
Water flow meter
Measures actual GPM at the outlet so we know the unit is hitting its rated flow, not just its rated wattage.
Pressure gauge
Confirms incoming water pressure sits in the 40 to 60 psi range the unit was designed for.
Descaling pump and flush kit
Circulates descaling solution through the heat exchanger to strip scale during annual service.
Pipe wrench and tube brush
Used on every plumbing tie-in to seat fittings and clean copper before soldering or pressing.
Thermal camera
Finds hot spots on the circuit and confirms even heat distribution across the element.
Manifold pressure gauge
Checks gas supply pressure on gas tankless units when a home is set up for a gas install instead.
Methods & Standards
Load calculation to NEC standards
We total the amp draw of the home's existing circuits and confirm the panel can carry the tankless unit plus a 20 percent safety margin. If it cannot, we quote a subpanel or service upgrade before we sell you a unit.
IPC and UPC code compliance
Every install is checked against the International Plumbing Code and the Uniform Plumbing Code for venting, relief valve placement, and pipe sizing. The City of Dallas inspector signs off on the same standard.
Manufacturer commissioning sequence
We follow the Rinnai, Navien, Rheem, and Stiebel Eltron commissioning steps for each unit, including air purge, flow verification, and outlet temperature setpoint. Skipping steps is how units fail early.
Annual descaling schedule
Dallas water runs hard, so we set every customer on a 12-month flush cycle with a descaling pump and flush kit. It is the single biggest factor in heat exchanger life.
When To Book An Electric Tankless Install
01
You are remodeling a Dallas bungalow and want the tank closet back for storage.
What we do: We remove the tank, run a dedicated circuit, and mount a wall unit in the garage or utility room. The old closet becomes usable square footage.
→ A closet back, endless hot water, and a permitted install that passes inspection.
02
Your 50-gallon tank is 12 years old and you want to replace it before it fails.
What we do: We quote a tankless conversion with the unit, circuit, permit, and plumbing tie-in. If the panel is tight, we price a subpanel in the same visit.
→ No emergency flood, no cold-shower morning, and a unit that should run 20 years with annual service.
03
You run a small salon or restaurant in Dallas and need hot water on demand all day.
What we do: We size a commercial tankless bank to your peak GPM, run the circuits, and commission the system with a flow meter and pressure gauge.
→ Hot water that keeps up with the lunch rush and does not quit at 2 p.m.
04
You bought a condo in Uptown and the existing tankless unit is undersized for two bathrooms.
What we do: We measure incoming water temp, run the load math, and replace the unit with a correctly sized model. The circuit gets upgraded if needed.
→ Two showers at once without a temperature swing, and a unit that hits its rated GPM.
05
A tenant calls at 9 p.m. with no hot water and you need it fixed tonight.
What we do: We run 24/7 emergency calls across Dallas, diagnose the failure, and repair or replace on the spot when parts allow.
→ A happy tenant, a documented repair, and no weekend emergency premium surprise.
How Electric Tankless Installation Runs In Dallas
Dallas sits on hard, mineral-heavy water, and that shapes every tankless install we do. We test hardness on site and integrate a water filter or softener when it reads high, because scale is what kills heat exchangers here. Summer ground temps push incoming water past 80 degrees, which actually helps tankless performance, but winter cold snaps drop it into the 50s and change the kW you need. Building stock matters too: Oak Lawn and East Dallas bungalows often have 100-amp panels and attic-routed plumbing, while Uptown and Downtown high-rises have tighter electrical rooms and HOA rules on where a unit can mount. We pull the City of Dallas permit on every job and meet the inspector, so the work is documented for resale. If you are comparing electric tankless water heater installation cost Dallas TX across quotes, ask each contractor whether the permit and the load calculation are included. Ours are.
Neighborhoods We Serve
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Uptown Dallas
High-rise condos with tight utility closets and HOA rules on wall penetrations. We plan the mount and vent path before we touch a wall.
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Oak Lawn
1920s bungalows with 100-amp panels and attic-routed plumbing. Most need a subpanel and a re-route to reach the new unit location.
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Lakewood
Larger family homes with three or more bathrooms. These usually land at 24 to 27 kW to keep up with simultaneous showers.
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North Dallas
Newer builds with 200-amp panels, which makes a whole-home electric tankless install straightforward and fast.
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Deep Ellum
Loft conversions where the old tank sits in a visible corner. A wall-mounted unit frees the space and cleans up the look.
Local Conditions We Plan For
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Hard water across most of Dallas County
Scale builds on the heat exchanger and drops flow rate within two to three years. We test hardness and quote a softener or filter on installs where it reads high.
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Winter cold snaps dropping incoming water temp
A unit sized for summer performance can fall short in January. We size to the coldest expected inlet temp, not the average.
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Older panels in pre-1960 Dallas homes
A 100-amp panel usually cannot carry an 18 kW heater. We run the load math and quote a subpanel when needed so the circuit is safe.
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Attic and garage unit locations
Exposed locations freeze in North Texas winters. We add freeze protection, insulation, and drain-down valves on those installs.
Oak Lawn Bungalow Tank To Tankless
Problems We Solve With Tankless Electric Installs
Most Dallas homeowners call us because a tank is failing, the panel is questionable, or the hot water never keeps up. Here is what we fix.
Problem
Running out of hot water with a full house
A 40-gallon tank recovers in 45 to 60 minutes, so the third shower runs cold. Families end up scheduling mornings around the water heater.
Our Fix
We size an electric tankless unit to your fixture count and incoming water temp, so 3 to 5 GPM of 120-degree water is available on demand. No recovery window, no cold-shower schedule.
Problem
Panel cannot carry a tankless load
A 100-amp panel with an electric range and dryer has no room for an 18 kW heater. Homeowners get bad advice and end up with tripped breakers.
Our Fix
We run a load calculation, then quote a subpanel or service upgrade if needed. The install is permitted and inspected so the circuit is correct from day one.
Problem
Hard Dallas water scaling the heat exchanger
Scale buildup drops flow rate, raises outlet temperature swings, and shortens unit life from 20 years to 7 or 8. It is the number one killer of tankless units here.
Our Fix
We test water hardness on site and integrate a water filter or softener when it reads high. Annual flushing with a descaling pump and flush kit keeps the exchanger clean.
Problem
Old tank leaking onto the floor
A failed tank can dump 40 gallons into a closet or attic pan. In Dallas homes with attic-routed plumbing, that means ceiling damage and a mold problem.
Our Fix
We remove the tank, cap the old lines, and install the tankless unit the same day whenever the panel allows. No tank, no flood risk, no 40 gallons waiting to fail.
Problem
Freeze damage after a North Texas cold snap
Attic and garage-mounted units can freeze overnight when temps drop into the teens. A cracked heat exchanger means a full replacement, not a repair.
Our Fix
We add freeze protection, pipe insulation, and drain-down valves on installs in exposed locations. It is a small add-on that saves a full unit replacement.
Why Dallas Homeowners Go Tankless Electric
Tankless electric units cut standby loss, free up closet space, and deliver hot water at the tap in seconds. Here is what that looks like in a Dallas home.
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Endless Hot Water Supply
A correctly sized electric tankless unit holds 120-degree water at 3 to 5 gallons per minute, so back-to-back showers do not run cold. Families in University Park with three bathrooms stop scheduling showers around a 40-gallon tank recovery window.
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Lower Standby Energy Loss
Tank heaters keep 40 to 50 gallons hot 24/7, which is 15 to 20 percent of a Dallas home's gas or electric bill. Tankless only draws power when a tap opens, and the U.S. Department of Energy puts tankless efficiency at 24 to 34 percent higher than storage tanks.
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Reclaims Closet And Attic Space
A wall-mounted unit is roughly the size of a carry-on suitcase. In Deep Ellum lofts and Oak Lawn bungalows where every square foot counts, removing the tank frees a closet, a utility corner, or the top of a garage shelf for real storage.
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Built For Dallas Water And Heat
We pair installs with a water filter or softener when hardness tests high, which protects the heat exchanger from scale buildup. That single add-on is the difference between a 20-year unit and a 7-year unit in Dallas County.
Licensed, Insured, And Permitted
Licensed & Certified
- Texas State Board of Plumbing Examiners (TSBPE) License — issued by Texas State Board of Plumbing Examiners
- NATE Certification — issued by North American Technician Excellence
- EPA Section 608 Certification — issued by U.S. Environmental Protection Agency
- OSHA Safety Certification — issued by Occupational Safety and Health Administration
- Manufacturer-Specific Training (Rinnai, Navien) — issued by Rinnai and Navien factory training programs
Verified Reviews
Google ★★★★★4.9
Booked a same-day estimate for electric tankless water heater installation in Dallas and had a written quote by dinner. The crew pulled the permit, added a subpanel, and had hot water running the next afternoon. No surprise charges.
Yelp ★★★★★4.8
Our Oak Lawn bungalow had a 100-amp panel and two other companies said no. These guys ran the load math, quoted a subpanel, and installed an 18 kW unit. Clean work, inspector signed off, and the closet is now a pantry.
BBB ★★★★★4.9
Called at 9 p.m. with a rental that had no hot water. They answered, diagnosed a failed element, and had a new electric tankless unit in by Saturday noon. Fair price, documented work, and I now use them on all four properties.
Google ★★★★★5.0
We needed electric tankless water heater setup Dallas for a two-bath condo in Uptown. They sized it correctly, upgraded the circuit, and walked us through the display and error codes. Two showers at once with no temperature swing.
Tankless Electric Experience You Can Check
Our technicians hold Texas State Board of Plumbing Examiners (TSBPE) licenses and carry NATE certification, with manufacturer-specific training on Rinnai, Navien, Rheem, and Stiebel Eltron electric lines. We have commissioned hundreds of tankless systems across Dallas County, from 1920s bungalows in Oak Lawn with knob-and-tube remnants to new-build condos in Uptown with 200-amp panels. Every install is inspected against the International Plumbing Code and the Uniform Plumbing Code, and we keep EPA Section 608 and OSHA safety certifications current so the job site stays clean and code-correct.
- TSBPE-licensed plumbing contractor with NATE-certified technicians on every install.
- Manufacturer-specific training on Rinnai, Navien, Rheem, and Stiebel Eltron electric units.
- Hundreds of tankless commissions across Dallas County, from bungalows to high-rises.
- Every job permitted and inspected against IPC and UPC standards.
- EPA Section 608 and OSHA safety certifications maintained across the crew.
Frequently Asked Questions
Real answers to the questions we hear most often from local homeowners and property managers.
How much does electric tankless water heater installation cost in Dallas TX?
Most residential installs run $1,800 to $4,500 in 2026, including the unit, dedicated circuit, permit, and labor. A panel upgrade adds $1,200 to $2,800. Long pipe runs, hard-water treatment, and commercial sizing push the number higher. We give you a written range after the site check, not a phone guess.
Do I need an electrician for a tankless water heater in Dallas?
Yes. A 240-volt dedicated circuit, correct breaker size, and proper wire gauge are electrical work, and Dallas requires a licensed trade to pull the permit. Our team handles the plumbing and the electrical under one licensed job, so you do not coordinate two contractors. The inspector signs off once.
How many amps does an electric tankless water heater need in Dallas?
A whole-home unit needs 75 to 120 amps of dedicated service, depending on kW. A 3-bathroom Dallas home usually lands at 18 to 27 kW. Single-point units for a bathroom sink or a small apartment can run on 30 to 60 amps. We run the load calculation before quoting.
Who installs electric tankless water heaters near me in Dallas TX?
We do, across Dallas County, from Uptown and Oak Lawn to Lakewood and North Dallas. We are a TSBPE-licensed plumbing contractor with NATE-certified techs, and we pull the City of Dallas permit on every job. Call (214) 817-0188 for a same-day estimate.
Related Services
Tankless Water Heater Installation
Full tankless installs for Dallas homes, gas or electric. We size the unit, run the lines, and commission the system so you get hot water the day we finish.
View Tankless Water Heater InstallationTankless Water Heater Repair
No hot water, error codes, or a leaking unit? We diagnose and repair tankless systems across Dallas County, usually the same day you call.
View Tankless Water Heater RepairTankless Water Heater Maintenance
Annual service keeps your electric tankless unit at rated GPM and protects the heat exchanger. We check elements, flow, and pressure on every visit.
View Tankless Water Heater MaintenanceTankless Water Heater Replacement
When a unit is past its run, we swap it for a correctly sized model, reuse what we can, and bring the circuit up to current Dallas code.
View Tankless Water Heater ReplacementTankless Water Heater Tune-Ups
A tune-up checks inlet filter screens, element resistance, and outlet temperature. It is the cheapest way to add years to a Dallas tankless unit.
View Tankless Water Heater Tune-UpsTankless Water Heater Flushing & Descaling
Dallas water runs hard. We flush with a descaling pump and flush kit to strip scale from the heat exchanger before it drops your flow rate.
View Tankless Water Heater Flushing & DescalingContact Our Dallas Tankless Team
Call (214) 817-0188 any time, day or night, and we'll get a real person on the line. For non-emergency work, most Dallas jobs get a same-day or next-day appointment. You can also email info@waterheaterrepairs.com and we'll respond within one business day.
Water Heater Repairs
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Phone
(214) 817-0188 -
Address
14205 Proton Rd, Dallas, TX 75244, Dallas, Texas
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Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available