Yes, Done’s licensed plumbers and technicians install gas appliances including gas water heaters, gas fireplaces, gas ranges, dryers, and other gas-burning equipment. Gas appliance installation is not a DIY project — it involves working with the gas supply line, ensuring proper venting, and confirming the installation meets local code requirements for safety. Done handles all of this correctly, with licensed technicians who know Colorado’s permitting and inspection requirements.

Why Gas Appliance Installation Requires a Licensed Pro

An improperly installed gas appliance is a serious safety hazard. Gas leaks, incomplete combustion, and inadequate venting can all have consequences ranging from higher utility bills to carbon monoxide poisoning or fire. Colorado requires permits for gas appliance installations in most jurisdictions, and those permits exist because an inspector needs to verify the work meets safety standards before the appliance is put into service.

Done pulls the required permits, performs the installation to code, and ensures the work passes inspection. This also protects you from insurance and liability complications that can arise from unpermitted work discovered during a home sale or after an incident.

Gas Water Heater Installation

Gas water heaters are one of the most common appliance installations Done handles. A proper installation includes connecting to the gas supply with the correct fittings and shutoff valve, ensuring the flue vent is correctly sized and pitched to exhaust combustion gases outside, setting the temperature-pressure relief valve and drain line, and confirming adequate combustion air supply to the space where the unit is installed.

At Denver’s altitude, combustion air calculations are slightly different than at sea level — atmospheric burners need to account for the reduced oxygen density. Done’s technicians factor this in, which is particularly relevant for installations in tight utility rooms or enclosed spaces.

Gas Fireplace Installation and Conversion

Gas fireplace installations range from inserting a gas log set into an existing wood-burning fireplace to installing a fully enclosed direct-vent gas fireplace in a new chase. Each scenario has different requirements for gas line sizing, venting configuration, and clearances. Direct-vent units draw combustion air from outside and exhaust directly through a co-axial flue — an excellent choice for tightly constructed modern homes where indoor combustion air is limited.

  • Gas log sets in existing masonry fireplaces require a gas supply line and a valve/ignition system
  • Fireplace inserts fit into existing openings and typically require liner installation in the existing flue
  • Direct-vent built-in units can be installed without a traditional chimney, using a two-pipe venting system through an exterior wall or roof
  • All gas fireplace installations require a dedicated shutoff valve accessible near the unit

Other Gas Appliances Done Installs

Beyond water heaters and fireplaces, Done handles gas line connections for ranges, cooktops, dryers, outdoor grills with permanent supply lines, and whole-house generators. If you’re adding a gas appliance where no gas supply line currently exists, Done can run new gas piping from the nearest appropriate supply point, sized correctly for the appliance’s BTU demand.

Homes upgrading from electric to gas appliances for the first time will need a new gas line run and possibly an upgrade to the gas meter capacity — Done coordinates with the utility on the supply side so the project moves forward without unexpected delays.

Safety Checks Done Performs on Every Gas Installation

Before leaving any gas appliance installation, Done pressure-tests all new connections, checks for leaks with appropriate detection equipment, cycles the appliance through its startup sequence, verifies proper venting operation, and confirms combustion characteristics are normal. You see the appliance working correctly before the technician leaves.

If you’re planning a gas appliance installation or replacement, visit our water heater services page for water heater specifics, or our full plumbing services overview for other gas line and appliance work. Contact Done to schedule an estimate — we’ll walk you through what’s involved before any work begins.