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

Subfloor Leveling & Subfloor Repair in Renton

We fix or replace uneven and weak plywood, slanting floors and unlevel concrete, so the floor you're about to buy actually lasts.

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

Self-leveling compound poured over a repaired subfloor

Renton homes cover a lot of ground, from postwar houses in the Highlands to split-levels in Fairwood and newer builds all over town. Different eras mean different subfloors, and different problems. Whatever you’re walking on, the layer underneath has to be flat and solid before a new floor goes in.

Why the subfloor decides everything

Your subfloor is the base for the floor you can see. If it’s uneven or weak, the new floor can look off, wear out faster and even become a tripping hazard. Most flooring manufacturers set a flatness standard their product has to be installed over. The only way to know where yours stands is to pull up the old floor and have someone experienced look.

Common problems we fix in Renton

  1. Bumpy concrete. Old slabs that sat under carpet for years are rarely flat. We level spots or the whole floor.
  2. Squeaks and creaks. Usually a subfloor that’s come loose from the framing. We re-secure it.
  3. Swollen or twisted plywood. Common in homes framed during a wet season. We sand high spots and fill low ones.
  4. Dips and mushy spots. Often water damage. We cut out the bad section and install new plywood.
  5. Slanted floors. Seen in basements and older homes. We level concrete or build up wood subfloors, and handle framing repairs when that’s the real cause.

Subfloor, flooring, or both

Kellie’s Remodel & Restoration is a full flooring company, so we can fix the subfloor and install the new floor on top. We handle big remodeling projects too. But if all you need is a licensed contractor to repair the subfloor the right way, we’re glad to do just that.

Subfloor fixes range in cost and in how involved they get. We’ll give you an honest assessment and an accurate estimate. Call (206) 300-3156 for a free quote.

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 Renton

The installer stopped because of my subfloor. Can you help?

Yes. That happens a lot: the old floor comes up, the installer finds a problem and can't go any further. Kellie's can step in, repair or level the subfloor properly and get your project moving again.

Is leveling the same as repairing?

Not quite. Leveling fixes a floor that's structurally sound but not flat, usually with leveling compound, sanding or thin layers of plywood. Repair means replacing subfloor that's damaged, soft or rotten. Many jobs need a bit of both.

Can you level a concrete floor in a basement?

Yes. We use a self-leveling compound over the slab, either in spots or across the whole floor, so hard flooring like luxury vinyl or laminate can go down flat.

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