Gas Water Heater Replacement in Denver — hot water back tonight.
Cold showers? Rusty water? A puddle under the tank? Licensed Denver plumbers replace your water heater today — gas, electric, or tankless — flat price quoted before we start, old unit hauled away free.
If our workmanship causes a problem, we'll fix it.
- ✓Same-day replacement available for qualifying Denver homes.
- ✓One flat price, quoted before we start. No work starts without your approval.
- ✓Permit pulled, inspection-ready, 5-year labor guarantee on qualifying work.
- ✓Old unit hauled away free. Cleaner than we found it.
An old water heater doesn't warn you. It floods your basement.
Cold showers
Running out of hot water means the tank is on its way out.
Rusty water
Metallic or brown water means the tank is corroding from the inside.
A puddle at the base
Moisture means a leak is coming — and a 40-gallon flood is expensive.
Denver water heaters fail between 8 and 12 years. Wait for the flood and you pay for the heater AND the water damage.
Everything a replacement should include — in one flat price
| New water heater, installed by licensed Denver plumbers | included |
| Old unit hauled away & disposed | included |
| Denver permit pulled & handled for you | included |
| 5-year labor guarantee plus applicable parts coverage | included |
| Post-install safety inspection & walkthrough | included |
| Your price: one flat number, quoted before we start | quoted before we start |
If our workmanship causes a problem, we'll fix it. Qualifying work includes a 5-year labor guarantee, applicable parts coverage, and insured service. Coverage, parts coverage, and exclusions are provided in writing before work begins.
Hot water back in three steps
Free flat-rate quote
Call or send the form. One flat price, today — no guessing, no hourly meter.
We replace it
Licensed plumber, code-compliant, permit pulled, drop cloths down.
Hot water tonight
Same day in most Denver homes. Old unit gone, area cleaner than we found it.
Booked by 10am, handled the same day
A Denver homeowner searched "gas water heater replacement", called One Line, and had the job booked the same morning. That's the standard, not the exception.
"Danny and his team are absolutely fantastic. Thorough, knowledgeable, and straightforward about the work at hand."
See the scope, promotions, and payment paths together.
We removed the draft teaser ranges. Your flat-rate quote is based on the equipment, fuel, access, venting, code work, urgency, and the affordability path that matters to you.
- ✓Essential and optional scope separated
- ✓Current affordability promotions checked
- ✓Financing availability shown when requested
- ✓Written competitor bids normalized line by line
Financing is available for qualified applicants, subject to lender approval.
Tell us whether the lowest upfront cost, a manageable monthly payment, or long-term value matters most.
Build My Quote ProfileBring any written quote from a licensed Colorado contractor for the same scope. We'll compare it line by line — equipment, permit, warranty, haul-away — and tell you honestly whether it's a fair price.
Water heater replacement FAQ
How fast can you replace a water heater in Denver?
Do you replace both gas and electric water heaters?
Should I repair it or replace it?
Do you pull the permit?
What's the warranty?
Do you haul away the old unit?
Get your flat-rate water heater quote
Licensed Denver plumbers, same-day replacement in most homes, and the price we quote is the price you pay.
- ✓ Flat price quoted before any work
- ✓ 5-year labor guarantee on qualifying work
- ✓ Old unit hauled away free