Cost to Install a Tankless Hot Water Heater

Updated: June 2016

Tankless Hot Water Heater Installation Cost CalculatorZip Code
Heaters
ItemQuantityLow  High  
Tankless Water Heater Cost
Non-discounted retail pricing for: 8.5 gpm tankless gas water heater at 35F temperature rise. 0.92 energy factor. Digital controller. Requires natural gas supply and 3" vent connection at unit. 5 yr limited warranty.
1 heater$1,147.25$1,289.75
Tankless Water Heater Labor - Basic
Basic labor estimate to install tankless hot water heater. Mount and secure new heater. Connect vent to existing vent ducting. Connect water to existing supply lines. Leak and cycle test. Any surface demolition, structural modifications and restoration if needed is extra. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup.
6.4 hours$517.54$663.49
Tankless Water Heater Materials and Supplies
Cost of related materials and supplies typically required to install tankless hot water heater including: connectors, fittings and mounting hardware.
1 Heater$41.28$46.96

Totals - Cost to Install Tankless Hot Water Heater - 1 Heater $1,706.06$2,000.19
Average Cost Per Heater  $1,706.06$2,000.19

Get an INSTANT, detailed estimate of the cost to Install a Tankless Hot Water Heater! Our free calculator uses up-to-date, trusted data to estimate typical subcontractor costs for a Tankless Hot Water Heater Installation project. For a basic 1 heater project in zip code 47474, the benchmark cost to Install a Tankless Hot Water Heater ranges between $1,706.06 - $2,000.19 per heater.

To estimate costs for your project:

1. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased.

2. Specify Project Size Enter the number of "items" required for the project.

3. Re-calculate Click the "Update" button.


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Cost to Install a Tankless Hot Water Heater - Notes and General Information

These estimates are for BASIC work performed in serviceable conditions by qualified trade professionals using MID GRADE materials. Work not mentioned on this page and/or work using master craftsman, premium materials and project supervision will result in HIGHER COSTS! Explore the full range of gas tankless water heater new installation labor options and material prices here.

These estimates are NOT substitutes for written quotes from trade professionals. Homewyse strongly recommends that you contact reputable professionals for accurate assessments of work required and costs for your project - before making any decisions or commitments.

The cost estimate includes:

  • Costs for local material / equipment delivery to and service provider transportation to and from the job site.
  • Costs to prepare the worksite for Tankless Hot Water Heater Installation, including costs to protect existing structure(s), finishes, materials and components.
  • Costs for job cleanup and debris removal at project completion.
  • Labor setup time, mobilization time and minimum hourly charges that are commonly included for small Tankless Hot Water Heater Installation jobs.

The cost estimate does NOT include:

  • Costs for removing, relocating, repairing, or modifying existing framing, surfacing, HVAC, electrical, and plumbing systems - or bringing those systems into compliance with current building codes.
  • Costs for testing and remediation of hazardous materials (asbestos, lead, etc).
  • General contractor overhead and markup for organizing and supervising the Tankless Hot Water Heater Installation. Add 15% to 23% to the total cost above if a general contractor will supervise this project.
  • Sales tax on materials and supplies.
  • Permit or inspection fees (or portion thereof) required by your local building department for your overall project.

Cost to Install a Tankless Hot Water Heater - References

Tankless Hot Water Heater Installation - Average Cost Per Heater

Expect to pay in the higher end of the price range for a licensed, insured and reputable pro - and for complex or rush projects.

To lower Tankless Hot Water Heater Installation costs: combine related projects, minimize options/extras and be flexible about project scheduling.


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