Tankless Water Heater Installation Cost in Colorado
$1,400 – $4,350We estimate tankless water heater installation in Colorado at $1,400 to $4,350 for a whole-house tankless unit replacing a tank. The national estimate is $1,400 to $4,400. Colorado plumber pay is 1% below the national median, ranking 30 of 51.
Part of the job
Low
High
Parts and materials (our assumption)
$1,000
$3,000
Labor hours (our assumption)
5
10
Billed labor rate per hour
$76
$137
Estimated total
$1,400
$4,350
Our estimate, not a quote. Billed rate is the Colorado median wage from BLS (2025, $30.40 an hour) times 2.5 to 4.5 to cover payroll costs, overhead, travel and profit. How we estimate
What our assumptions are based on
Item
Sourced figure
Basis
Source
Labor hours
4 – 10
4 to 8 hours (This Old House); 6 to 10 hours (Fixr). Bob Vila says close to 3 hours; that figure is not in this range.
Colorado says it is a violation of state law for anyone other than the homeowner who is not a registered plumbing contractor to install a plumbing project on your property. If you hire a plumbing contractor, the contractor is responsible for getting the required permits.
General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.