Tankless Water Heater Installation Cost
Tankless water heaters provide unlimited hot water on demand while using 24-34% less energy than traditional tank models. Gas units typically cost more upfront but have lower operating costs.
Low Estimate
$1,000
Mid-Range
$3,000
High End
$6,000
Avg ROI
40%
Interactive Cost Estimator
Mid-grade materials, good quality fixtures, standard options.
Estimated Total Cost
$2,880
Based on 200 sq ft at mid quality. Actual costs vary by location and contractor.
Cost Breakdown
Approx. $1,650 at mid-range pricing
Approx. $1,350 at mid-range pricing
Labor-heavy projects (with high labor costs) benefit most from getting multiple contractor bids. You can save on materials-heavy projects by sourcing materials yourself at contractor pricing.
What Affects the Price
- 1Gas vs electric
- 2Flow rate (GPM)
- 3Venting requirements
- 4Electrical panel upgrade
- 5Water hardness
Popular Upgrades
- Whole-house unit
- Point-of-use unit for remote fixtures
- Condensing model for efficiency
Discuss upgrades with your contractor before finalizing the quote. Some upgrades are cheaper to include during initial construction than to add later.
DIY vs. Hire a Pro
Professional installation strongly recommended.
DIY Advantages
- • Save 55% on labor costs ($1,650 at mid-range)
- • Control over timeline and material selection
- • Satisfaction of completing the project yourself
- • Flexibility to work in phases
Pro Advantages
- • Guaranteed workmanship and professional finish
- • Proper permits and code compliance
- • Access to trade pricing on materials
- • Required for safety and code compliance
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