Tankless Water Heater Installation in Denver, CO
A tankless unit heats water on demand instead of holding it in a tank. Done right in a Denver home it means endless hot water and a smaller footprint. Done wrong it means lukewarm showers in January, because Colorado groundwater comes in cold and the sizing has to account for it.
- Gas and electric tankless units sized for real Denver inlet temperatures
- Permitted, vented, and gas-line verified before we call it done
- Free quote with the sizing math shown to you
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What it is
Tankless water heater A tankless water heater heats water on demand as it passes through the unit instead of storing a supply of hot water in a tank, which allows for continuous hot water and a smaller footprint.
Denver's cold incoming groundwater temperature has to be accounted for when sizing a tankless unit, because an undersized unit can deliver lukewarm water in winter even though it works fine in summer.
Most tankless complaints trace back to sizing, not the unit
Tankless capacity is rated in gallons per minute at a given temperature rise. Denver winter inlet water can sit near 45 degrees, so a 110 degree shower needs a 65 degree rise. That single number decides whether one unit can run a shower and a dishwasher at the same time.
- Endless hot water when the unit is matched to real demand
- No standby tank losses
- Wall-mounted, frees up floor space
- Longer service life than a tank when descaled on schedule
Good reasons to go tankless
- Your tank runs out during back-to-back showers
- You are tight on mechanical room or closet space
- The old tank is at end of life and you are replacing anyway
- You want to cut standby heat loss on a gas bill
- You are remodeling and the venting can be rerouted cheaply
What a proper tankless install includes
- Demand math: fixture count, simultaneous use, and winter temperature rise
- Gas load check, because most tankless units need more BTU than the old tank
- New stainless or PVC venting run to code, not reused tank flue
- Isolation valves so the unit can be descaled without cutting pipe
- Condensate handling on condensing models
- Permit and inspection, plus a walkthrough of the descale schedule
How a tankless install goes
- 1
Sizing visit
We count fixtures, check the gas meter and line size, and pick the target flow rate.
- 2
Unit selection
Condensing or non-condensing, indoor or outdoor, gas or electric, with the tradeoffs explained.
- 3
Install day
Old unit out, new gas and water connections, venting, isolation valves, condensate.
- 4
Commission and inspect
Set temperature, verify flow at the farthest fixture, and meet the inspector.
Credentials, reviews, and company proof
- Colorado Master PlumberFixture and appliance work is permitted and code-compliant, not handyman work.
- Plumbing Contractor license 2110Licensed to pull permits and pass inspection on gas, water, and drain work.
- Serving Denver since 2006Two decades of Front Range water chemistry, altitude, and inspection practice.
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What moves the price of a tankless install
The unit is rarely the biggest line. Retrofitting a house built for a tank is where the cost lives.
Need help right now? 24/7 emergency plumbing service. Planning a larger repair? See financing options.
- Gas line size, since many tankless units need a larger supply than a 40 gallon tank
- New venting path and whether it goes through a wall or the roof
- Condensing model with condensate drain versus non-condensing
- Electrical work for an electric unit or for a gas unit's controls
- Water softening or a scale filter if your water is hard
- Permit fees for your municipality
Frequently asked questions
Licenses, credentials, and company proof
- Colorado Master PlumberLicense MP-18927
- Colorado State Plumbing ContractorLicense 2110
- Family Owned & OperatedServing Denver since 2006, 20 years
- Better Business BureauAccredited Business, A+ rating
- Angie's List Super Service Award2012 through 2017
- Serving Denver since 2006Residential and commercial properties across the metro
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Ready for endless hot water?
Get a free tankless sizing quote with the temperature rise math included.