Based in Eatonville · Serving Pierce, South King & Thurston countiesMon–Fri, 9am–5pm · [email protected]
Kellie's Remodel & Restoration
Seattle, WA

Subfloor Leveling and Subfloor Repair in Seattle

Squeaky floors, sloping floors, soft spots, uneven plywood or bumpy concrete. Kellie's fixes what's underneath, so your new floor looks right and lasts.

Free in-home estimates · Kellie's crew. Your crew. · WA Contractor Lic. #KELLIRR749B8

Self-leveling compound poured over a repaired subfloor

Every floor you’ve ever walked on sits on a subfloor, usually plywood, particleboard or concrete. It’s the foundation for everything on top, and when it isn’t flat and solid, the new floor pays the price. Hardwood gaps and cups. Vinyl clicks and separates. Tile cracks. Most flooring makers even spell out how flat the subfloor has to be, and a lot of Seattle homes don’t meet that spec without some work.

Seattle homes have seen some things

Seattle has a lot of older housing: century-old craftsman homes, post-and-beam houses, basements with old concrete floors, and additions that were built on a different level than the original house. Add decades of settling and a few leaks along the way, and the subfloor is often the real project. Here’s what we see most:

  • Squeaky floors. Loose fasteners or wood rubbing on wood. Sometimes this is a simple, inexpensive fix.
  • Soft or bouncy spots. Usually damaged or rotting subfloor. We cut it out and replace it with new plywood.
  • Sloping floors. Common with post-and-beam foundations and basements. We build it back up with plywood layers or leveling compound, depending on what’s going down on top.
  • Wavy plywood. Subfloors that got rained on during construction can swell and warp. We sand the high spots and fill the low ones.
  • Uneven concrete. Carpet hides a lot. Once it’s gone, the slab often needs spot leveling or a full pour of self-leveler before hard flooring can go in.
  • Water damage. Leaks swell and delaminate the subfloor, and it has to come out before it grows into a bigger problem.

An honest assessment first

What it takes to fix a subfloor can be simple or complicated, and you won’t know until someone experienced gets a look. Kellie’s has been doing this for over 30 years. We’ll tell you what we find, what it’ll take and what it’ll cost, straight.

Not every flooring contractor repairs subfloors. Kellie’s does, and we can do the flooring on top too, or even a full remodel. Call (206) 300-3156 for an assessment and a free estimate.

Recent work

Level first, then the floor

See the full portfolio →
New wood-look plank flooring in a kitchen, installed over a freshly leveled subfloor

Leveled, then installed

New plank floor down over a kitchen subfloor we leveled first.

Wood-look plank flooring installed through an empty living room with French doors

Plank floor install

Laid tight and straight wall to wall.

Attic converted into a finished room with plank flooring, a new window and recessed lighting

Attic conversion

Unused attic space, framed, finished and floored.

Floor finder

Which floor fits your house?

Three quick picks. We'll point you to the floor that fits, and Kellie's will confirm it at your free estimate.

1Which room?
2Who lives there?
3What matters most?
Open living room and kitchen with gray luxury vinyl plank flooring throughoutOur pick

Luxury vinyl plank

  • Waterproof, so spills, wet paws and dishwasher leaks don't hurt it
  • Tough wear layer that stands up to kids, pets and chairs
  • Looks like wood and runs room to room without a break

Also worth a look: Laminate · More about luxury vinyl plank →

Every floor goes down over a flat, solid subfloor. Kellie's checks that first, which is why the floors stay flat.

Why Kellie's

Why homeowners call Kellie's

Over 30 years

Kellie started in flooring over 30 years ago and grew into full remodeling. That experience shows in the details.

Pros Kellie trusts

Her own people plus seasoned specialists she'd trust in her own home, run as one team.

Level first

We check the subfloor and fix what needs fixing before the new floor goes down. That's why our floors stay flat.

Quick answers

You'll usually hear back the same day or the next business day. Call or text (206) 300-3156.

We make it right

If something isn't right, we come back and fix it. It's how Kellie's has earned repeat customers.

What homeowners say

More reviews →

They are honest, upfront, and genuinely care about finding the best solution for you and your home. They will actually tell you if there is a better or more cost effective option for your situation.

Danylle G.

The flooring is beautiful, the installation is perfect. I threw some curve balls and Kellie was all over it, every time. FANTASTIC all around!

Tracy C.

We had carpets and hardwood installed, and it is all beautiful and high quality. Excellent customer service and communication throughout the process.

Robin R.
Did you know?

Most "bad floor" calls aren't the floor. If a room feels bouncy or the planks keep separating, the subfloor underneath is usually the problem, and covering it up with new flooring just buys you a year. Kellie's levels and repairs the subfloor first, which is why the floors stay flat.

Get it looked at
FAQ

Subfloor repair questions, answered for Seattle

Can you fix my subfloor even if someone else is installing the flooring?

Yes. Plenty of installers pull up the old floor, find a problem underneath and stop until it's fixed. Kellie's can step in, repair or level the subfloor properly, and hand it back ready for the new floor. Of course, we're happy to install the flooring too.

How do I know if my subfloor needs work?

Squeaks, soft or bouncy spots, visible dips, and gaps that open up in your finished floor are all signs. But you can't know for sure until the old flooring comes up and someone experienced takes a look. Call us at any stage and we'll help you figure it out.

How much does subfloor repair cost in Seattle?

It varies a lot. Tightening a squeaky area can be quick and inexpensive, while replacing water-damaged plywood or leveling a whole basement slab is a bigger job. We'll look at it and give you an honest, itemized estimate.

Free estimate

Tell us about your project

Send it over and Kellie's gets back to you, usually the same day or the next business day. Prefer to talk it through? Call or text and you'll reach a person, not a queue.

Call or text(206) 300-3156
HoursMonday–Friday, 9am–5pm
Service areaPierce, South King & Thurston counties
Request your free estimateNo cost, no obligation. We'll come look at the whole project.
(206) 300-3156Free Estimate