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UniColorado
Opens Fri 8 AM

Denver HVAC Contractor

Water Heater Installation Denver

UniColorado installs gas and electric tank water heaters for Denver homes. We handle permitting, code compliance, old unit disposal, and manufacturer warranties. Bradford White and Rheem models, 40 to 75 gallon capacity. Installation cost starts at $2,400 for standard replacements.

Water Heater Installation Denver

Same-day estimatesAll major brandsPermits included
Appointments available this week
BBB A+ RatingMitsubishi Diamond ContractorNATE CertifiedHomeAdvisor Top RatedYelp 5-Star Rating
Green Business Colorado
BPI CertifiedGoogle Guaranteed

Water Heater Installation & Replacement

Water heater installation in Denver

Water Heater Installation Denver

Professional water heater installation for Denver homes. Gas and electric tank models from Bradford White and Rheem.

Same-day estimatesAll major brandsPermits included
(303) 250-1000

How It Works

What Types of Water Heaters Do We Install?

UniColorado installs gas (natural gas) and electric tank water heaters for residential customers in Denver. Tank sizes range from 40 to 75 gallons, covering households from 1 to 6+ people. We primarily install Bradford White and Rheem units, both manufactured in the United States with strong track records for reliability. Gas water heaters require proper venting and gas line connection. Electric models are simpler to install but have higher operating costs in Colorado due to Xcel Energy electricity rates.

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What Our Customers Say

5.0
Google Reviews (138)

Chastity O.

My mother debra was a customer of theirs. They did an amazing job. My mom feels they were so hood to her. They were professional and supportive even when problems did arise. She appreciates all you did for her. She would recommend yall to anyone!!

Google Review

Kyle M.

Aydin and team were absolutely fantastic. The install was efficient and smooth. By far the best value that we received quotes for.

Google Review

Michael M.

Afshin and Aydin were great to work with! The whole process from solution design through installation went smoothly, all at a fair price. They were always responsive and the job finished on time. Couldn't recommend more.

Google Review

Colorado's Most Experienced Heat Pump Installer

We install roughly 500 water heaters per year across Denver, Centennial, Littleton, and Highlands Ranch. Most installations are standard tank replacements, with a smaller number being fresh installs for new construction or additions. We pull permits for every installation and coordinate inspections with Denver and county building departments. Bradford White and Rheem are our primary brands due to parts availability and warranty support.

Mitsubishi hyper-heat install, Colorado 2013
2013

Our first hyper-heat install

Lennox heat pump install 2016
2016

Early Lennox cold-climate adoption

Bosch IDS Ultra heat pump install
2024

Bosch IDS Ultra install

Latest cold-climate heat pump installation 2026
2026

Latest cold-climate tech

30+

Municipalities

Master

Licensed & Certified

1000s+

Happy Homeowners

Water Heater Certified

Technicians

100% Satisfaction

Guarantee

Up Front Pricing

No hidden fees

$5M+

Saved for homeowners in 2025

$9,250

Average savings

5,000+

Rebate applications submitted

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Pricing

Water Heater Installation Cost in Denver

Tank water heater installation in Denver ranges from $2,400 to $3,600 depending on model, tank size, and installation complexity. A standard 40-gallon gas replacement typically costs $2,400 to $3,000. A 50-gallon gas unit runs $2,800 to $3,400. A 75-gallon gas unit for larger homes costs $3,200 to $3,600. Electric tank models fall in a similar range. These prices include the water heater unit, labor, permits, old unit disposal, and code-compliant installation. Big-box retailers advertise lower installed prices, but this often excludes permit fees, venting inspection, code compliance work, and warranty support beyond the unit itself. UniColorado pricing covers all aspects of a legal, safe installation.

Gas vs. Electric Water Heater

Gas and electric water heaters both heat water effectively, but they differ in operating cost, recovery time, and installation requirements. Gas water heaters cost less to operate in Colorado because Xcel Energy natural gas rates are lower per therm than the equivalent electricity. A gas unit will recover faster after heavy hot water use, making it better for larger families. However, gas units require proper venting to the outside and a gas line connection, adding to installation complexity. Electric water heaters are simpler to install with no venting required, but operating costs are higher due to Xcel electric rates ranging from $0.10 to $0.14 per kWh. For most Denver homes with existing gas service, a gas water heater offers better long-term value. For homes without gas or with solar panels, electric may make more sense.
FactorGasDetails
Monthly operating costLower (Xcel gas rates)
Recovery timeFaster (higher BTU output)
Venting requiredYes (exterior vent)
Installation complexityHigher (gas line + venting)
Best forHomes with existing gas

When to Replace Your Water Heater

Tank water heaters last 8 to 12 years on average. Denver's hard water accelerates tank corrosion, often shortening lifespan closer to the 8-year mark. Signs your water heater needs replacement include: rust-colored water, pooling water around the base, lukewarm water during showers, rising energy bills with no usage change, and age over 10 years. If your water heater was installed before 2015, it is likely nearing end of life. Replacing a failing unit before it leaks completely prevents water damage to your home.

Choosing the Right Size

Water heater size is determined by first hour rating (FHR), which measures how much hot water the unit can deliver in one hour. A 40-gallon tank is sufficient for 1 to 2 people. A 50-gallon tank handles 3 to 4 people comfortably. A 75-gallon tank is appropriate for 5+ people or homes with multiple bathrooms running simultaneously. Denver homes with master bathrooms, large soaking tubs, or teenagers going through back-to-back showers typically need 50 gallons minimum. If your current water heater runs out of hot water during peak morning hours, size up to the next capacity.
Household SizeRecommended TankDetails
1–2 people40 gallon
3–4 people50 gallon
5+ people75 gallon

What to Expect During Installation

Water heater installation follows a 4-step process. First, we assess your existing unit, fuel type, venting configuration, and available space. Second, we remove and dispose of your old water heater. Third, we install the new unit with proper connections for water supply, gas or electric power, pressure relief valve, drain pan, and venting if gas. Fourth, we test the unit for proper ignition, temperature, and safety shutoff. Installation takes 2 to 4 hours for a standard replacement. If your home needs venting upgrades, gas line modifications, or electrical circuit work, installation may take longer.

Frequently Asked Questions

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