Foundation installation in Redmond WA - built for the soil under your house
You're building or adding on and need a foundation that sits right on your lot. We start with your soil and build to the engineer's plan.
- Licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
What does foundation installation in Redmond involve?
Foundation installation is digging, forming and pouring the concrete footings and walls or slab that a new home or addition sits on. In Redmond it starts with the soil, because what's under the house decides what you should build.
Most people who call us have plans for a new house, an addition or a small building on a lot they own, and they want to know what it'll take before they commit. The price turns mostly on what the soil report says, the type and depth of foundation the engineer draws, how much digging and water protection the lot needs, and how easy the site is to reach. The schedule turns on getting the report and plan done, the permit side and the weather on pour day. If you only need a slab under a garage or shop, our slab foundation building page covers that, and either way your own number comes from a written quote after I've seen the lot.
How do you know it's time to plan a foundation?
Plans for an addition
You've got drawings for a new home or an addition, and the engineer has drawn the foundation. That usually means it's time to line up the concrete work, because if you wait until framing is booked, the prep gets squeezed, and the prep is where foundations go wrong.
Water that sits after rain
Puddles hang around in the yard for days, or the ground stays soupy long after a storm. That usually points to slow-draining soil or high groundwater, and if nobody plans for it, the walls below ground end up damp.
A slope or soft ground
The lot drops off toward a ravine, or the ground feels loose when you walk it. That usually means the soil needs testing before anyone settles on a design, and skipping that step can mean a redesign after the digging has started.
How we handle foundation installation
A foundation starts with knowing the soil, so the first thing I ask is whether you have a soil report or need one, and then we build to that report and the engineer's plan instead of a guess. On site, our crew lays out the building, digs to the depth on the plan and packs the ground the footings sit on, because loose dirt under a footing settles later. We set the forms and the rebar, which is the steel inside that keeps the concrete from pulling apart when the ground moves. Then we pour and let it cure, which is the wait while the concrete gains strength before anything goes on top of it. Once the forms come off, we coat the walls below ground the way the plan calls for and backfill around them. When a budget gets tight, people look at what will show, but I'd rather spend on the dig and the packed base, because they're buried on day one and there's no fixing them once the concrete's in.
Foundation jobs often come with other concrete. A deck or porch may only need concrete footings, separate pads under each post, and small property owners putting up a building usually need concrete parking lot building beside it, which we can look at during the same visit.
Get a written foundation quote, line by line
Send the form and we'll get back to you within one business day to set up a free visit at your site. There's no obligation, and a soil report helps if you have one.
(425) 285-8289- Mon–Fri: 7 AM–10 PM, Sat–Sun: 8 AM–9 PM
- hello@concretecontractorredmond.com
- Redmond, WA 98052
What happens after you call about a foundation?
Here's how a foundation job runs with us, from your first call to the cleanup, and who handles each part along the way.
Call or send the form
We set a time to come out to your site. Have your address, the project type and any soil report or engineer's plan ready, because those shape everything after.
I walk the site with you
I look at the lot, measure and ask how you'll use the building. You get a written quote with each part of the job on its own line, so you can see where the money goes before you decide.
We set a date and handle permits
Once you say go, we book the work and handle the permit application if the job needs one. In Redmond, inspections are requested along the way and before anything gets covered up, and a skipped one can hold up the job, so we put in those requests as each stage is ready.
I run it through cleanup
Our crew does the work, and I'm on site running it from the dig to the cleanup. When the forms come off and the site's clear, I walk it with you.
Why Redmond homeowners call Allied Redmond Concrete for foundations
On a foundation, the soil and the prep decide how it holds up, so that's where I spend the time. Send us your project or call (425) 285-8289, and have the soil report handy if you have one. Satisfaction guaranteed.
The owner walks your lot
I come out to look at the job myself, and I'm on site running our crew once the work starts. You're not explaining your project to someone new at every stage.
Learned on foundation crews
I learned concrete on flatwork and foundation crews before starting this business in 2021, five years ago. I know what a good dig and a square form look like before the truck shows up.
Licensed and insured, every job
We're licensed and insured. That matters most on a foundation, because it's the part of the house everything else depends on.
Straight answers about your lot
If I don't know something about your soil or the slope behind the house, I'll say so and go find out before it goes in a quote. Around Redmond that comes up a lot, because plenty of lots sit on hills or soft ground.
Foundations, footings and hillside lots in Redmond
Redmond requires a building permit for any project that isn't on its no-permit list, and that list names new homes, additions and alterations, not foundation installation on its own, so the list alone doesn't settle it for a foundation and I won't guess. We tell you at the estimate if your job needs a permit and handle the application. If a question falls outside what we handle, the city's residential permits page is the place to start.
Plenty of lots around here sit on slopes or soft, wet ground, and the city treats some of them as hazard areas. Its zoning code calls land with loose, low-density soil over shallow groundwater a seismic hazard area, because an earthquake can make that soil settle or turn soft and runny, which is why soil testing counts for more on those lots. Near a landslide hazard area, Redmond requires a 50-foot buffer with no building in it, plus a 15-foot setback from the buffer's edge. A qualified professional's studies can support cutting that buffer to 25 feet, except next to an active slide. That can change where the house goes, so we want the soil and slope questions settled before the forms go in, and we see the same kind of hillside lots on jobs in Sammamish and Issaquah.
Questions about foundation installation in Redmond
(425) 285-8289How much does foundation installation cost in Redmond?
We price each foundation after seeing the lot and your plans, because the soil, the design and the site decide most of the cost. A basement usually costs more than a slab, since there's more digging and more wall to protect from water, and a sloped or hard-to-reach lot adds work. A simple slab on flat, firm ground is usually the least expensive.
How do I choose the right foundation type for my lot?
Start with a soil report, because the right type depends on how much weight your soil can carry, what kind of soil it is, how deep the groundwater sits, the building's loads, the frost depth, the earthquake zone and your budget. That report comes from a soil study, usually borings or test pits with lab tests on the samples. Getting those results first tells you which types fit both the lot and the money before the plan is final.
Can a concrete foundation be poured in winter in Redmond?
Yes, as long as it's protected, because fresh concrete freezes below about 25°F, and that can cut its potential strength by more than half. It should stay protected from freezing for about two days after it's placed. If your pour lands in winter, ask how it'll be protected, and I'll tell you how we'd handle it before we book the date.
What is the best way to keep water out of foundation walls?
Most poured concrete walls below ground get dampproofing, a coating that sheds water and resists moisture from the soil. Lots with slow-draining soil or a high water table need waterproofing instead, which holds back water under pressure, so your site decides which one you need.
How do I find out if my Redmond lot is in a hazard area?
A field study tells you for sure, because the city's hazard maps are only a general guide, and a qualified consultant decides the actual hazard area on the ground. If your lot is near a mapped area, plan on that study before the foundation design is settled, since the landslide buffers above can change where you build.
What causes a new slab foundation to crack?
Most cracks start under the concrete, from a base that wasn't packed, missing steel or a slab that dried out too fast. A slab foundation needs a vapor barrier, which is a plastic sheet that keeps ground moisture out, along with a properly compacted base and reinforcing to control cracking. In a cold climate, the slab's edge also has to reach below the frost depth or get insulation around the outside.
Related services for foundation projects
Concrete footings
Porches, decks and small outbuildings rarely need a full foundation, and footings sized to the load give each post a solid spot to sit on.
Concrete parking lot building
A new shop or rental building usually needs paved parking, and a lot poured on a packed, well-drained base holds up to cars without breaking up.
Service areas for foundation work around Redmond
Allied Redmond Concrete is based in Redmond, WA, and we build foundations in the cities around it, including Kirkland and Woodinville. The 12 cities below have their own pages, and we work in plenty of others nearby too.
Redmond, WA
Book a site visit for your foundation
Calling before your plan is final gives us time to look at your soil and site access while changes are still easy to make.