Trench Pour-Back in Seattle, Tacoma & Western Washington
The tenant-improvement utility trenches we cut and remove, doweled into the slab and poured back by the same crew, plus the pads, slabs and other flatwork a job needs, when it needs them.
30 reviews, every one five stars
Family-owned since 1999
WA Lic. SILERCC804RT · USDOT 3663541
Licensed & insured · 24/7 availability
What Is a Trench Pour-Back?
When our saws cut a trench through a tenant-improvement slab for new plumbing, electrical or mechanical runs, someone has to close it once the trades are done. That is trench pour-back: the old concrete is already out, so we drill rebar dowels into the existing slab to tie the new concrete in so it doesn’t settle, pour fresh concrete to the slab’s depth and finish it flush, the natural last step of our own trenching work, done throughout Western Washington.
Good flatwork starts below the surface. We plan the sub-base and concrete thickness around how the surface will actually be used: for commercial applications with moderate or light loads, a 2-inch sub-base of compacted 5/8-minus crushed rock is adequate, while heavier loads call for a larger sub-base aggregate and greater overall thickness, with rebar or mesh reinforcement where the load demands it. That planning up front saves time and money down the road.
Pour-back at Siler’s lives alongside our concrete cutting services, so one crew handles the whole cycle on a trench: cut it, remove it, and pour it back. We also pour the other flatwork a job calls for (machine pads, structural slabs, sidewalks, curbs and ADA ramps), with finishes from standard broom to decorative, colored, stamped and exposed aggregate. One call, one crew, since 1999.

Why Contractors & Homeowners Choose Siler’s
Family-owned and operated since 1999.
Every one of our 30 reviews is five stars.
WA SILERCC804RT · USDOT 3663541
Nights, weekends and tight pour schedules.
What Our Crews Pour Back
Tenant-improvement trench pour-back is the main event. The rest is flatwork we can pour when a job needs it. These are the calls we take across Western Washington:
TI Trench Pour-Backs
Plumbing and electrical trenches in tenant-improvement slabs poured back after the cut, tied in with rebar dowels so they don’t settle, the natural finish to our own trenching work.
Machine Pads & Structural Slabs
Pads and slabs poured for equipment, tenant improvements and structural applications, planned for the loads they’ll actually carry.
Freezer & Equipment Pads
New pads with foam and reinforcement for freezers and equipment, like the freezer pad we poured alongside 2,000 feet of warehouse trenching in Mountlake Terrace.
Sidewalks, Curbs & Gutters
Repair and replacement of sidewalks, curbs and gutters, including municipal work like our sidewalk repairs for the city water district.
ADA Ramps
Ramps and accessible routes formed and poured to ADA rules, the skills and the tools to get compliance right the first time.
Decorative & Specialty Finishes
Broom, decorative, colored, stamped and exposed aggregate finishes. Function first, but it can look good too.
Poured Right, From the Sub-Base Up
A trench is poured back to the existing slab’s depth, with rebar dowels drilled into the existing slab to tie the new concrete in, so the patch can’t settle and carries the same load as the floor around it. For new flatwork, depth is matched to duty: sidewalks and pedestrian areas get a minimum 4-inch pour; commercial areas with moderate vehicle traffic get 6 inches; busy areas carrying large trucks need 8 inches or more, reinforced with rebar or mesh as the load requires. We assess use, sub-base and thickness before any concrete moves, because proper planning prior to construction is what saves rework later.
Our experienced crews run the latest tools and equipment, work quickly without cutting corners, and offer flexible scheduling around your project, because on construction jobs, time is always of the essence.
Pour-back usually follows our own cut. See flat / slab sawing for the trenches and openings that start the job, and concrete breaking & disposal for how the old concrete leaves the site.
Pour-Back at a Glance
Utility trenches poured back flush, by the crew that cut them
Machine pads, slabs, sidewalks, curbs & ADA-rule ramps
4″ / 6″ / 8″+ pours matched to traffic loads
Rebar dowels drilled into the existing slab, no settling
Broom, colored, stamped & exposed aggregate finishes
Licensed & insured, WA Lic. SILERCC804RT
Pour-Back Jobs We’ve Poured Recently
Pour-back is where a cutting company earns its keep: trenches, tenant improvements, structural slabs and machine pads across Seattle, Tacoma, Bellevue and Everett, cut, removed and poured back so cleanly the patch reads as intentional. Recent pour-back projects:

City Sidewalk Repair Project
Sidewalk repair services for the city water district in response to a broken water main, cut, removed and poured back.

Cut, Remove & Pour Back
Fourteen locations cut, removed and poured back at an apartment complex so water wouldn’t puddle at the stairway entrances.

Suncrest Terrace Apartments
Footing removal and asphalt patch replacement after a vehicle strike, restoring parking access for tenants.
Have a Job Like These?
Send us the plans or talk to the crew directly. Free estimates, 24/7 availability, one crew from first cut to haul-off.
5.0 on Google From 30 Reviews
Real reviews from Western Washington homeowners and general contractors.
“Larry and his team also re-poured the concrete, leaving the final product with the foundation looking completely intact, as if nothing had ever happened.”
Mark M.
Five-Star Google Review
“Wonderful to work with and very efficient”
Jessica G.
Five-Star Google Review
“Guys were great! So nice. Thankful for the help”
Leif O.
Five-Star Google Review
How Trench Pour-Back Works with Siler’s
A cut-only contractor leaves the break-out and the haul-off to somebody else. Siler’s cuts to your marked lines, breaks out the sections and hauls them off with one crew, so nothing falls between subs.
Free Estimate
Call (206) 901-9383 or send us the scope: what’s being poured, where, and what it needs to carry. Great prices, free estimates, flexible scheduling.
Cut & Remove
Our flat / slab sawing crew cuts the trench and our breaking and haul-off crew takes the old concrete out clean, then the trades run their lines.
Dowel & Pour
Rebar dowels drilled into the existing slab so the pour-back can’t settle, concrete poured back to depth, or, for new flatwork, 4, 6 or 8-plus inches depending on what the surface will carry.
Finish & Cure
Broom, colored, stamped or exposed aggregate, finished to spec, edged, and left to cure into a surface that lasts.
Sound Familiar?
✕ An opening that’s out of square, so the frame or the duct doesn’t fit.
✕ A second sub to schedule for haul-off, and a third for the pour-back.
We built our process to take every one of these off your plate. One call. One crew. One line on your schedule.
Trench Pour-Back Questions, Answered
Trench Pour-Back Across Seattle, Tacoma & Western Washington
Our crews pour back across the Puget Sound region every day: trenches behind our own saws, plus the pads, slabs and sidewalks a job needs.
Need a Trench Poured Back?
Get a free estimate today. Tell us about the job or talk to the crew directly.

