Footings, stem walls, and full foundations for new builds, additions, ADUs, and garages. Poured to code frost-depth with proper rebar and drainage, permit pulled, inspection scheduled.
A new foundation is the one part of a build you can't fix later without tearing things apart, so it's the worst place to cut a corner. We pour footings, stem walls, and full foundations for additions, ADUs, garages, and new construction, sized and reinforced for the load above and the soil below. In Whatcom County the WA State building code frost-depth for footings is 12 inches minimum below finished grade, deeper on exposed or higher-elevation lots like Sudden Valley, and inspectors check it.
Our wet ground does two things to a new foundation: it keeps the soil saturated for months, and it pushes water against anything you bury in it. So we don't just pour concrete, we build the drainage and the subbase that keep the footing from heaving or holding water against the wall. Footprint, soil type, and any engineering an addition or ADU needs are what drive the cost, which is why this one is priced by consultation after we see the site and the plans.
What it actually costs.
New Foundations & Footings By consultation
FootprintSquare footage and wall height set the concrete volume
SoilSoft or expansive soils near the bay and flats change the design
EngineeringAdditions and ADUs often need an engineered footing
Frost depth12 in minimum, deeper on exposed or high-elevation lots
Our four-step process.
Site visit and plans review
We look at the lot, the soil, and your plans, and walk you through what the footing or foundation needs to carry and how deep it has to go.
Engineering and permit
We coordinate any required engineering, then pull the City of Bellingham or Whatcom County permit and schedule the footing inspection.
Excavate, form, and reinforce
We dig to code frost-depth, build a real subbase, set forms, and place engineered rebar before the footing inspection signs off.
Pour, cure, and inspect
We pour 4,000+ psi mix, protect the cure, and meet the inspector. You get a foundation that's ready to build on.
Why hire us for a new foundation or footings.
Poured to code frost-depth: 12 in minimum, deeper on high lots
Engineered rebar and a real subbase, not a thin uninspected pour
We pull the permit and meet the footing inspector
Drainage built in so the footing doesn't heave or hold water
Sized for additions, ADUs, garages, shops, and new builds
Frequently asked questions.
What does it cost to pour a foundation for an addition or ADU in Whatcom County?
New foundations and footings are priced by consultation because footprint, soil, and engineering drive the number more than anything else. A small garage footing is a very different job from an engineered ADU foundation on soft soil. We come look at the lot and the plans and give you a written, line-item quote before any work starts.
How deep do footings have to go in Bellingham?
The WA State building code frost-depth for footings in Whatcom County is 12 inches minimum below finished grade, and deeper on exposed or higher-elevation lots like Sudden Valley. Inspectors check the depth, which is one reason we pull the permit and schedule the footing inspection on every structural pour.
Do you handle the permit and inspection for a new foundation?
Yes. We pull the City of Bellingham or Whatcom County permit, coordinate any required engineering, and schedule and meet the footing inspection. You don't have to chase the paperwork or the inspector.
Ready for a free a new foundation or footings quote?
Tell us about your project, we'll call you back fast during business hours.
We pour new foundations and footings across Whatcom County, from ADU and garage pads in Barkley to shop foundations on the Lynden flats. Pick your area for local notes: