Pipe spool fabrication

Built to spec. Ready to drop in.

If it bolts up, ties in, or gets welded in the field—we can fabricate it. Earthquake Welding builds custom pipe spools right here in Arizona, ready for delivery to jobsites across the Valley, Tucson, Yuma, and beyond.

We fabricate carbon, stainless, and alloy spools to spec, fit-up tight, and weld them under controlled conditions. Whether it’s for high-pressure gas lines, fuel systems, or mechanical piping, every piece is prepped, tagged, and ready for install the minute it hits the site.

We’re used to fast-turn demands—whether it’s a handful of pre-fab sections or a full run of welded spools for a terminal or facility upgrade.

Capabilities

High-pressure pipeline welding
API 1104 certified welding
Boiler room pipe welding
Pipe welding for utility rooms
ASME B31.3 and B31.8 welding
Piping system upgrades and retrofits
Stainless steel pipe welding
Metal Fabrication
Carbon steel pipe welding
Utility gas line tie-ins
Alloy pipe welding
Live gas line welding
On-site pipe welding service
Regulator station piping
Pipe spool fabrication
Utility Gas
Pipe welding for shutdowns/outages
Cathodic protection welds (anode connection)
Corrosion repair welding
Gas pipe rerouting and upgrades
Pipe section replacements
Ethanol and biofuel line welding
Pipe welding for compressor stations
Certified RNG distribution pipeline welding
RNG facility piping and pressure testing
Commercial HDPE gas line welding
RNG-ready utility tie-in welds
Polyurethane gas line installation
RNG pipeline tie-in welding
Poly gas line welding/fusing for RNG facilities
Mobile pipe welding and repair
Petroleum pipeline welding
RNG utility gas upgrades and service connections
Meter and regulator assemblies for RNG systems
RNG gas line installation and fusion welding
Fuel terminal pipe welding
Natural gas line installation
Loading rack piping and welding
Natural gas line repair
Aviation fuel system welding
Emergency pipe welding
Pipe welding for gas lines
Tank farm piping systems
HVAC chiller line welding
Diesel line welding and repair
Mechanical room pipe welding
Welding for chiller piping systems