Appliance hookups
Range, dryer, fireplace, BBQ, generator, pool heater, hot tub. Sized to the BTU rating, with shutoff and flex line at the appliance.
- Gas range & cooktop conversions
- Outdoor BBQ & firepit lines
- Generator & standby fuel feeds
Service / 04 · Gas Lines & Piping
Gas work,
Gas work,
done by the book.
Big Four Plumbing — licensed gas line installation and repair in Granite Falls and Snohomish County, WA.
Range hookups, dryer conversions, fireplace lines, and full-house repipes. We pull the permit, pressure test the line, and stick around for the inspection. Gas isn't the place to cut corners.
- Permit pulledEvery job, every time
- Pressure testedDocumented results
- Inspector approvedWe meet the inspector on site
BlackIron, CSST & PE — installed correctly
L&IPermitted & inspected
1M+BTU sizing & load calcs
0Sniff tests — we use real detectors
What we do / 01
From a single appliance hookup
to a whole-house repipe.
Every job sized for the actual load, not a guess.
New gas line runs
Adding gas to a part of the house that doesn't have it? We route through walls, attics, or crawl space — clean, supported, and to code.
- Black iron & CSST
- Indoor & outdoor runs
- Sleeving where required
Leak detection & repair
Smell gas? Don't wait. We isolate the section, pressure test, and rebuild the failed run — never just patch.
- Electronic gas detection
- Section isolation testing
- Coordination with PSE if needed
Pressure testing
Required for new installs and reactivations. We run the air test, document the result, and meet the inspector on site.
- Standard 10–15 psi air tests
- Manometer readings recorded
- Permit close-out included
Repipes & upsizing
Adding a tankless or a generator? The existing line is often too small. We recalculate the load and upsize the run.
- BTU load calculations
- Manifold and meter coordination
- Minimal-disruption routing
Capping & reactivation
Removing an appliance? Restoring an old line? Properly capped and pressure-checked — never abandoned in place without test.
- Code-compliant caps
- Reactivation pressure tests
- Documentation for resale
Safety first / 02
Gas isn't a DIY job.
Here's how we keep it safe.
Four non-negotiables on every Big Four gas job.
Permit pulled, every time
If your contractor offers to skip the permit, find a new contractor. Permits exist so an inspector verifies your house is safe.
BTU load, calculated
Pipe size depends on appliance load and run length. We do the calc — we don't guess. Undersized lines cause low pressure and dangerous combustion.
Pressure tested & documented
Every new section gets a recorded pressure test. You get the documentation for your records and any future home sale.
Bonded & sleeved correctly
CSST requires proper bonding to ground. Lines through floors and walls require sleeving. Little details that matter a lot.
FAQ / 03
Gas-line questions.
Smell gas right now? Get out, then call (360) 488-8553.
Do I really need a permit for a gas hookup?
Yes. Snohomish County and most cities require a mechanical permit for any new or modified gas line. It also protects you on resale and for insurance.
Black iron, CSST, or PE — what's the difference?
Black iron is traditional rigid pipe — bulletproof but slower to install. CSST is flexible corrugated stainless — fast and great in finished spaces, but requires bonding. PE (polyethylene) is for underground runs only. We pick based on the job.
How fast can you hook up my new range?
If the line is already there, often same day. If we need to add or upsize the run, plan for a couple of days including the permit and inspection.
Can you add an outdoor gas line for a BBQ or firepit?
Absolutely — one of our most common requests. We route to your patio, install a quick-disconnect, and pressure-test the line.
Will you coordinate with PSE?
Yes — for meter changes, service upgrades, or new gas service. We handle the paperwork and timing for you.
Free quote / 04
Tell us about the gas job.
Send the form or call (360) 488-8553. Suspect a leak? Leave the building first, then call.
- Phone(360) 488-8553
- Address23100 135th St NE, Granite Falls, WA 98252
- HoursMon–Sat 7am–7pm · 24/7 emergency