Gas line installation & repair
in Concord & the Bay Area.
Licensed gas work. Permits pulled. Done safely.
Gas line work isn't the place to cut corners. Whether you need a leak repaired, a new line run for an appliance, or an outdoor BBQ hookup — we do it licensed, permitted, and pressure tested from start to finish.
Gas leak repair
Emergency response available throughout Contra Costa County.
New installations & extensions
Appliances, BBQs, generators, tankless heaters.
Permits handled
We pull the permit. You get a final inspection on record.
CA Lic. #802256
Licensed, insured, family-owned since 2001.
“Ran a new gas line for our outdoor kitchen. Showed up on time, permit handled, clean work.”
Michael B.
Alamo, CA · Google
What We Do
Every gas line job
done to code.
Permitted. Inspected.
Gas work carries real consequences when it's done wrong. We size lines correctly, use proper fittings and sealing, pull permits on every job, and pressure test before and after. When we leave, you have a paper trail — and a system that works safely.
Smell gas? Call now — (925) 288-0409Gas line installation
Gas leak repair
Appliance hookups
BBQ / outdoor lines
Tankless water heater lines
Generator connections
Gas line sizing upgrades
Permit handling
How It Works
Every step done right.
No shortcuts on gas.
- Step 1:
Assess & Permit
We review your appliance needs, existing line sizing, and pull the required permit. No gas work without proper documentation.
- Step 2:
Pressure Test
Before opening any line, we pressure test the existing system to establish a baseline and identify any pre-existing leaks.
- Step 3:
Install or Repair
New runs, re-routes, sizing upgrades, or leak repairs. We use proper fittings, sealing, and support throughout.
- Step 4:
Final Inspection & Pressure Test
We pressure test again after work, confirm all appliances are lighting properly, and schedule the permit inspection.
Know the Signs
Smell gas? Notice a higher gas bill?
Don't wait.
Gas line issues we handle
From emergency leaks to planned installations — we cover it all under permit.
Suspected gas leak
Emergency — call nowIf you smell rotten egg odor, leave the house and call us immediately. Do not use light switches, phones, or any electrical device inside.
Adding a gas appliance
New run requiredTankless water heater, gas range, fireplace, generator — each needs a properly sized dedicated line.
Aging or corroded lines
Inspection + repairBlack iron pipe from the 1960s–80s can corrode from the inside out. We inspect, pressure test, and repair or replace.
Warning signs — don't ignore these
Any one of these is a reason to call today.
- Rotten egg or sulfur smell indoors
- Hissing sound near gas line or appliance
- Gas bill suddenly much higher
- Dead vegetation over underground line
- Appliances not lighting reliably
- Yellow or orange flames on gas burners
FAQ
Common questions
Everything homeowners ask before calling us.
Yes. Gas leak repair is one of our core services. If you suspect a leak — rotten egg smell, hissing sound, unusually high gas bill — call us immediately at (925) 288-0409. We serve Concord and throughout Contra Costa County.
Cost depends on the length of the run, pipe size required, access conditions, and permit fees. A short appliance hookup may run a few hundred dollars; a longer new run with permitting can be more. We assess your specific situation and give you a price before any work begins.
Yes — in virtually every jurisdiction in Contra Costa County, gas line work requires a permit and inspection. We handle the permit application as part of the job. This protects your home, your insurance coverage, and ensures the work is done to code.
Yes. Outdoor gas lines for BBQs, fire pits, fire tables, and outdoor kitchens are a common request. We size the line properly for the appliance load, run it safely, and pull the permit.
Leave the house immediately. Do not use light switches, phones, or any electrical device inside. Once outside, call your gas utility to shut off service, then call us. Do not re-enter until the line has been inspected and cleared.
A single appliance hookup or short new run is typically completed in a few hours. Larger projects — whole-home re-piping or multi-appliance installations — may take one to two days. We give you a realistic timeline during the assessment.
Yes. Tankless water heaters often require a larger gas supply line than the existing one serving a tank unit. We size and install the new run correctly, pull the permit, and coordinate with the water heater installation. See our [object Object] page for more.
Customer Reviews
Don't take our
word for it.
“Ran a new gas line for our outdoor kitchen. Showed up on time, permit handled, clean work. Everything passed inspection first try. Highly recommend.”
“Called Guerra Bros. after smelling gas near our furnace. They were out within the hour, found the leak, repaired it, and pressure tested everything. Calm, professional, and thorough. This is who you call.”
“Had them run a new line for a gas range and a tankless water heater in the same visit. They pulled the permits, did the work right, and it all passed inspection. Fair price for licensed work.”
Where We Work
Gas Line Services near you.
Licensed gas line installation and repair throughout Concord, Walnut Creek, Martinez, and Contra Costa County.
Don't see your city? Call us — we may still serve your area.
View all service areas
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