Diagonal board subfloor in older homes
Older Berwyn houses often have subfloors made of diagonal planks rather than plywood. We patch them with matched thickness or add a plywood layer over them.
Serving Berwyn & nearby Oak Park, Chicago
Kitchen Subfloor Repair in Berwyn, IL
Soft, rotted or squeaky kitchen subfloors opened up, rebuilt and made solid in Berwyn homes.
- Technicians covering Berwyn ZIP 60402
- Diagnosis first, then a written price for the repair
- Honest advice when replacing makes more sense
Subfloor problems we fix in Berwyn kitchens
The subfloor is the layer of plywood or boards that every kitchen floor depends on. We repair it in Berwyn homes when it has gone spongy, rotted, squeaky or uneven, and we leave it flat and dry for the finished floor.
Floor too thin for tile
Planning porcelain on a floor built for sheet vinyl? We check the thickness and stiffness and build it up as needed.
Spongy floor at the sink base
Drips from supply lines or a drain connection run down into the cabinet floor and the subfloor below it. We check both and replace whatever has softened.
Cracked tile or separating plank floor
Flooring repairs don't hold over a moving subfloor. We correct the base before any new finish goes back.
Musty smell or stains in the basement ceiling
Water stains on the basement ceiling below the kitchen can point to a leak above. We check the subfloor from both sides.
Leak from the refrigerator water line
When the floor behind the refrigerator is dark or soft, the water line is the first suspect. We fix both.
Swollen, mushroomed panel edges
Raised lines in a floor that follow a grid usually trace swollen subfloor seams. We replace the damaged panels.
Damage at a seam from a past repair
Old subfloor repairs are often the weak spot. We rebuild them so the edges are fully backed.
Where we look first
- Finding and stopping the leakWe look for the source — dishwasher, sink, fridge line or an outside wall — and make sure it is fixed first.
- Removing the finish floorWe remove flooring only as far as the repair needs.
- Moisture testingWe measure the wood moisture to set the repair boundary and confirm it is dry.
- Cutting out damaged subfloorWe remove the damaged area in a clean rectangle with every edge supported.
- Joist inspection and reinforcementWet, cracked or undersized joists are sistered or blocked; structural work goes through a permit where required.
- New subfloor panelsTongue-and-groove plywood or OSB of matching thickness, glued to the joists and screwed down.
- Ready for flooringSubfloor solid and clean; we can lay the new floor or coordinate with your flooring installer.
Common fixes and parts
Tongue-and-groove plywoodThe usual choice for kitchen subfloors: stiff, holds screws well and tolerates brief wetting better than OSB.
Underlayment layerAn extra plywood or backer layer that stiffens the floor for tile or smooths it for vinyl.
Construction adhesive and subfloor screwsFastening that grips the joists instead of working loose like nails.
Leveling compound and patchCement-based leveler or patch to fill low spots before the finish floor.
Sister joists and blockingFraming reinforcement that stiffens the floor and backs every seam.
Before and after: kitchens near Berwyn
Problem
Fixed
DetailBerwyn kitchen, prewar brick bungalow: kitchen subfloor repair
This one is a prewar brick bungalow near Depot District. Before: worn maple strip floor with dark patches and an almond range and refrigerator. What bothered the owners most: cupped boards over a wet subfloor. The result: new plywood subfloor glued and screwed down in front of the dishwasher, ready for flooring. On site this meant removing the finish floor, cutting out damaged subfloor, plus new subfloor panels.
Before
AfterKitchen Subfloor Repair in a 1980s two-story, Oak Brook
The site: a 1980s two-story in Oak Brook. The kitchen as it was: oak parquet and white appliances. What bothered the owners most: cupped boards over a wet subfloor. Finished kitchen: new plywood subfloor glued and screwed down in front of the dishwasher, ready for flooring. On site this meant removing the finish floor, moisture testing, plus cutting out damaged subfloor.
Kitchen Subfloor Repair in Oak Brook →
Before
AfterBerwyn kitchen, brick bungalow from the 1920s: hardwood floor repair & refinishing
The oak floor sanded and refinished with a satin clear finish, grain visible and the water marks gone.
Hardwood Floor Repair & Refinishing in Berwyn →
Before
AfterA Berwyn prewar brick bungalow: before and after
Finished: soft sage-green inset-style cabinets with unlacquered brass hardware, honed white marble-look quartz counters, a white handmade-look square tile backsplash, restored oak strip floor and schoolhouse pendant lights.
Kitchen Remodeling in Berwyn →
Before
AfterBefore and after: a prewar foursquare in Berwyn
The same doors sprayed in soft white, new matte black pulls; counters and floor stayed as they were.
Kitchen Cabinet Painting in Berwyn →How the repair goes
- Inspect the floorWe walk the floor, check it from the basement if possible and measure moisture.
- Stop the waterThe leak is fixed and the area dried before we close anything up.
- Rebuild the subfloorCut out, reinforce, replace and level the subfloor.
- Finish the floorThe finish floor is restored and appliances go back.
Kitchen Subfloor Repair questions from Berwyn homeowners
Plywood or OSB for a kitchen subfloor?
We generally prefer plywood in kitchens because it handles occasional water better. OSB is used when matching an existing OSB floor.
How long does subfloor repair take?
Small sections are quick. Framing repairs and new flooring add days.
How do you find where the leak is coming from?
By tracing moisture readings and checking each appliance connection, plus a look from the basement when possible.
Do I need a permit for subfloor repair?
For framing repairs, often yes. For a panel patch, usually no. We confirm before starting.
What affects the cost of subfloor repair?
How much area is damaged, whether joists need work, removing and replacing the finish floor and moving cabinets or appliances. We give a written, itemized estimate after the visit.
Berwyn building permit for kitchen subfloor repair: where do I apply?
Permits go through Building Department, City of Berwyn, phone 708-788-2660. When your scope needs one, we prepare the application and schedule the inspections.
Do I need a permit for kitchen subfloor repair in Berwyn?
It depends on the scope. Berwyn's rule in short: City permit list includes any kitchen and bathroom remodeling, all electrical work, and plumbing/sewer work (faucet or toilet replacement excluded). We handle the permit when one is needed with Building Department, City of Berwyn.
Do you work in my part of Berwyn?
Yes. Our crews work across Berwyn, including South Berwyn, South Oak Park area, Depot District, LaVergne — ZIP 60402 — and nearby Oak Park, Chicago, Oak Brook.
Working in Berwyn
- Most Berwyn homes are prewar. We work around plaster walls, radiators and out-of-square rooms every week.
- Most Berwyn homes are single-family. We protect floors and driveways and leave the site clean every day.
- Live in the Central Berwyn Bungalow Historic District? Interior kitchen work is usually not reviewed. We check before anything touches the exterior.
South BerwynSouth Oak Park areaDepot DistrictLaVergneOgden Avenue
ZIP 60402
Kitchen Subfloor Repair nearby
Other kitchen services in Berwyn
Hardwood Floor Repair & RefinishingSanding, refinishing and board repairs for kitchen hardwood floors.
Kitchen RemodelingFull kitchen remodels, from layout to last cabinet pull.
Kitchen Cabinet PaintingFactory-smooth painted cabinets without replacing them.
Cabinet RefacingNew doors and fronts on your existing cabinet boxes.
Countertop Fabrication & InstallationQuartz, granite and butcher block, templated and installed.