Commercial gas line installation & repair in Concord & the Bay Area.
Licensed gas work. Every job permitted. Done safely.
Gas work is safety-critical — undersized lines fail equipment, unlicensed repairs fail inspection, and gas leaks don't wait. We handle commercial gas line installation and repair with proper sizing, commercial-grade fittings, and permit documentation on every job.
- Gas leak repair & new installations — Commercial kitchens, HVAC, industrial.
- Every job permitted & inspected — No commercial gas work without proper documentation.
- Pressure testing before & after — We verify the system before we leave.
- CA Lic. #802256 — Licensed, insured, family-owned since 2001.
Licensed Gas Work
Permit pulled on every job
What We Do
Every gas job,
done to code.
Commercial gas line work covers a lot of ground: new installations for kitchen equipment, HVAC units, and generators; repairs after leaks or damage; line sizing upgrades when equipment loads change; and pressure testing to verify system integrity. Every job requires a licensed contractor, a permit, and inspection.
We work with restaurant operators, property managers, general contractors, and facilities teams throughout Contra Costa County. If you're adding equipment, relocating a line, or suspect a leak, we give you a written estimate and handle everything from permit to final inspection sign-off.
Get a project estimateHow It Works
Permitted, tested,
documented — every time.
- Step 1:
Assess & Permit
We review your equipment load, existing line sizing, and pull the required commercial permit. No gas work without documentation.
- Step 2:
Pressure Test Baseline
Before opening any line, we pressure test to establish a baseline and catch any pre-existing issues.
- Step 3:
Install or Repair
New runs, reroutes, sizing upgrades, leak repairs. Commercial-grade fittings, proper support, code-compliant installation throughout.
- Step 4:
Final Test & Inspection
Post-work pressure test, appliance lighting verification, and permit inspection coordination. Documentation provided.
Safety Guide
Smell gas? Line undersized? Adding equipment? We handle it.
Commercial gas situations vary. Here's how we approach the most common ones — and what to watch for before they become emergencies.
Commercial gas situations we handle
Leave building, don't use electrical devices. Call PG&E to shut off supply, then call us. We locate, repair, pressure test, and restore safely.
Proper BTU sizing, permit, and inspection. Tapping an existing line without sizing it is a code violation and a real operational risk.
Undersized lines cause equipment failures and safety risks. We assess the current system, size the upgrade correctly, and permit the work.
Warning signs to act on now
- Gas smell (rotten egg / sulfur) on property
- Appliances not reaching temperature
- Higher gas bills without usage change
- Yellow or orange burner flames
- Hissing near gas lines or equipment
- Failed health or fire inspection
FAQ
Common questions
Yes. If you smell gas, evacuate the area first and call PG&E to shut off supply. Then call us — we locate the leak, make the repair using commercial-grade fittings, pressure test the repaired section, and coordinate permit inspection before restoring service. We do not restore gas without verifying the repair holds pressure.
Cost depends on scope: a simple leak repair on an accessible line is different from running a new dedicated feed to a commercial kitchen. We provide a written estimate after assessing your equipment load, existing line sizing, and required permit. No guesswork — you know the number before work begins.
Yes, always. Any commercial gas line installation, repair beyond minor maintenance, or line modification requires a permit from your local building department. We pull the permit, perform the work to code, and coordinate the final inspection. We will not perform commercial gas work without proper documentation — it is a safety and liability issue.
Yes. Commercial kitchens require properly sized dedicated gas lines to each appliance — ranges, ovens, fryers, griddles, broilers, and salamanders all have specific BTU demands. We size the run correctly, use commercial-grade fittings, route with proper support and clearances, and pull the permit. Under-sized lines cause equipment failures and failed health inspections.
Leave the building immediately. Do not use light switches, phones, or any electrical device inside the building. Do not attempt to locate the leak yourself. Once outside, call PG&E at 1-800-743-5000 to shut off supply, then call us. We respond as quickly as possible during business hours for confirmed gas emergencies.
Simple repairs or single-appliance hookups can be completed in a day. New line runs for commercial kitchens or multi-zone systems take longer depending on building layout, permit timelines, and inspection scheduling. We give you a realistic timeline with the estimate — not a number we walk back later.
Yes. Tenant improvement gas work is one of the most common jobs we handle — new restaurant buildouts, kitchen reconfigurations, and equipment additions all require properly sized and permitted gas lines. We work directly with general contractors and can coordinate with your project timeline.
What Clients Say
Trusted by restaurants,
building managers, and contractors.
“We were adding a second kitchen line for a new fryer station. Guerra Bros. pulled the permit, sized the line correctly, and passed inspection on the first try. Our old plumber missed the permit entirely — huge difference.”
“Had a gas smell in our building utility room. They came out, found a fitting that had backed out over time, repaired it, pressure tested the whole run, and gave us documentation to show our property manager. Professional from start to finish.”
“Managing a mixed-use building and needed gas lines run for three new tenant spaces. Guerra Bros. coordinated the permits for each unit, worked around the construction schedule, and all three passed inspection. Would use them again without question.”
Where We Work
Commercial Gas Line Services near you.
Same-day service available in Concord, Walnut Creek, Martinez, and throughout Contra Costa County.
Don't see your city? Call us — we may still serve your area.
View all service areas
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