A tankless water heater installation in Rowlett, TX costs between $2,500 and $5,000 total, depending on the brand, fuel type, and any upgrades needed for your home's gas line or electrical system. The unit itself accounts for roughly half the cost, with labor, materials, and permits making up the rest. As Rowlett water heater repair specialists, here is a complete breakdown of what to expect.
Tankless Water Heater Unit Costs by Brand
The brand and model you choose has the biggest impact on your total cost. Here are the most popular tankless water heater brands we install in Rowlett, along with their typical unit-only prices:
| Brand | Unit Cost (Gas) | Unit Cost (Electric) | Warranty |
|---|---|---|---|
| Rinnai | $1,500 - $2,500 | $500 - $800 | Up to 12 years |
| Navien | $1,600 - $2,400 | N/A | Up to 15 years |
| Noritz | $1,200 - $2,000 | $400 - $700 | Up to 12 years |
| Rheem | $1,000 - $1,800 | $400 - $700 | Up to 12 years |
| Takagi | $1,200 - $2,200 | N/A | Up to 15 years |
| Bosch | $800 - $1,500 | $300 - $600 | Up to 12 years |
Gas tankless units are more popular in Rowlett because they deliver higher flow rates (8-11 GPM) compared to electric models (2-5 GPM). For a household of 3-4 people, we typically recommend a gas unit in the $1,500-$2,000 range from Rinnai or Navien.
Labor and Installation Costs
Labor for tankless water heater installation typically runs between $800 and $1,500, depending on the complexity of the job. A simple replacement of an existing tankless unit is on the lower end, while a conversion from a tank system requires significantly more work.
| Installation Scenario | Estimated Labor Cost |
|---|---|
| Tankless-to-tankless replacement | $500 - $800 |
| Tank-to-tankless conversion (gas) | $1,000 - $1,500 |
| Tank-to-tankless conversion (electric) | $600 - $1,000 |
| New construction install | $700 - $1,200 |
Additional Costs to Plan For
Beyond the unit and standard labor, several add-on costs can affect your total investment:
Gas Line Upgrade ($500 - $1,500)
Gas tankless water heaters require a larger gas supply line than most tank units. If your home has a standard 1/2-inch gas line to the water heater location, it will likely need to be upgraded to 3/4-inch. This is the most common additional cost we encounter in Rowlett homes built before 2010.
Venting Modifications ($300 - $800)
Tankless units use different venting than traditional tanks. Most require category III stainless steel venting or can be vented directly through an exterior wall using a concentric vent kit. If your existing venting is not compatible, this modification adds to the total.
Electrical Upgrades ($200 - $600)
Electric tankless water heaters require substantial electrical capacity. A whole-house electric unit may need two to three dedicated 40-amp circuits. If your electrical panel does not have the capacity, an upgrade may be necessary.
Permits ($75 - $200)
The City of Rowlett requires a plumbing permit for water heater installations. We handle all permit applications and inspections as part of our standard installation service.
Total Installed Cost Summary
| Project Type | Total Installed Cost |
|---|---|
| Budget gas tankless (Bosch/Rheem) | $2,000 - $3,500 |
| Mid-range gas tankless (Rinnai/Noritz) | $3,000 - $4,500 |
| Premium gas tankless (Navien/Takagi) | $3,500 - $5,500 |
| Electric tankless (whole-house) | $1,500 - $3,000 |
| Electric tankless (point-of-use) | $300 - $800 |
Is a Tankless Water Heater Worth the Investment?
For most Rowlett homeowners who plan to stay in their home for 5+ years, the answer is yes. Here is why the math works out:
- Energy savings: $100-$200 per year compared to a standard tank unit
- Lifespan: 20+ years vs. 8-12 years for a tank, meaning you avoid one full replacement cycle
- Home value: Tankless water heaters are a selling point that can increase your home's appeal to buyers
- Rebates: Some federal tax credits and utility rebates apply to high-efficiency tankless installations
Pro Tip: Ask us about available rebates when you schedule your free estimate. We stay current on all federal, state, and utility incentive programs that can reduce your out-of-pocket cost.
Our Installation Process
When you choose Rowlett Water Heater Pros for your tankless water heater installation, here is what to expect:
- Free in-home assessment: We evaluate your hot water needs, inspect your gas/electrical setup, and recommend the best unit for your household.
- Transparent quote: You receive a detailed written estimate covering the unit, labor, materials, and any additional work needed.
- Professional installation: Our licensed technicians complete the installation, typically in 4-8 hours for a full conversion.
- Testing and walkthrough: We test every fixture, verify proper venting and gas connections, and walk you through the unit's controls and maintenance schedule.
We proudly serve Rowlett, Wylie, Murphy, and all surrounding areas within 25 miles.
Frequently Asked Questions
How long does tankless water heater installation take?
A straightforward tankless-to-tankless swap takes 2-4 hours. A full tank-to-tankless conversion, including gas line and venting work, typically takes 4-8 hours and is completed in a single day.
Do I need to upgrade my gas line for a tankless water heater?
Most homes in Rowlett built before 2010 will need a gas line upgrade. We assess this during our free in-home evaluation and include the cost in your upfront quote so there are no surprises.
What size tankless water heater do I need?
For a 2-3 bedroom Rowlett home, a unit with 8-9 GPM flow rate is usually sufficient. Larger homes with 4+ bathrooms may need a 10-11 GPM unit or multiple smaller units. We size every installation based on your specific hot water demand.
