Centennial homes with Xcel Energy natural gas service have gas lines feeding furnaces, water heaters, ranges, dryers, fireplaces, and outdoor grills in many cases. As these appliances are replaced, added, or relocated, the gas lines that serve them need to be extended, capped, or modified by a licensed professional. Gas line work also comes up when older flexible connectors degrade and need to be replaced, when a gas smell indicates a leak at a fitting or connector, or when a homeowner wants to add gas service to a new appliance location.

Gas line work in Centennial connects to both plumbing and HVAC. For gas appliance replacement that includes the appliance itself, our furnace service team handles gas furnace replacement and connection. For emergency gas situations, our emergency plumbing team responds after Xcel Energy has cleared the home. See all Centennial plumbing services.

• New gas appliance connections for ranges, dryers, fireplaces, outdoor grills, and other appliances being added to locations with existing gas service.
• Gas line extensions to reach new appliance locations that are not currently served by an existing gas stub-out.
• Flexible connector replacement for aging corrugated stainless steel tubing or older flexible connectors that are past their safe service life.
• Gas leak detection and repair for homes where a gas odor has been detected at a specific appliance connection or in a specific area of the home.
• Gas line capping and decommissioning for appliance locations that are being converted to electric or where gas service is being removed.

Here are the gas line projects our Centennial plumbers handle most often.

How Do I Know If I Have a Gas Leak in My Centennial Home?

Natural gas has a distinct sulfur or rotten egg odor added specifically so leaks can be detected by smell. If you detect this odor in your Centennial home, leave immediately without operating any switches or electrical devices, call Xcel Energy from outside, and do not return until the utility has assessed the situation. Even small gas leaks carry serious explosion risk if gas accumulates in an enclosed space.

For a gas smell localized to a specific appliance connection rather than throughout the home, the source is usually a failing flexible connector at the appliance shutoff or a loose fitting at a union or valve. These are still emergency situations requiring immediate action. Turn off the gas shutoff at the appliance if you can do so safely, ventilate the area, and call WireNut for emergency gas line repair.

What Types of Gas Lines Are Used in Centennial Homes?

Older Centennial homes from the 1970s and 1980s were typically plumbed with black iron pipe for gas distribution inside the home. Black iron pipe is durable but corrodes over decades and can develop leaks at threaded fittings where corrosion breaks the seal. Many newer installations and repairs use corrugated stainless steel tubing, or CSST, which is flexible and easier to route through finished walls but requires proper bonding and grounding to prevent damage from lightning-induced electrical surges.

WireNut assesses the existing gas line material in your Centennial home and uses the appropriate materials for any extension or repair work, ensuring the connections meet current code requirements and pass Arapahoe County inspection.