Spongy floor at the sink base
Years of small leaks under a sink can rot the subfloor while the cabinet bottom hides it. We look underneath before deciding how far the repair goes.
Serving Geneva & nearby Batavia, St. Charles
Kitchen Subfloor Repair in Geneva, IL
Soft, rotted or squeaky kitchen subfloors opened up, rebuilt and made solid in Geneva homes.
- Repairs across Geneva ZIP 60134, 60510
- We find the cause, not just the symptom
- Parts and labor quoted before work starts
Subfloor problems we fix in Geneva kitchens
Kitchens are where leaks hide: under the dishwasher, behind the fridge water line and below the sink base. Our Geneva carpenters open the floor, trace the moisture to its source, replace what is damaged and reinforce framing where it needs it.
Bouncy or sagging floor
Bounce in the middle of the kitchen often comes from the framing, not the plywood. Sistering or adding blocking stiffens it.
Swollen, mushroomed panel edges
Raised lines in a floor that follow a grid usually trace swollen subfloor seams. We replace the damaged panels.
Uneven or out-of-level floor
Humps and dips are corrected with planing, shims on the joists or a leveling compound, depending on how far out the floor is.
Squeaks and creaks underfoot
Squeaks happen when the subfloor moves against nails or joists. We fasten it down with screws, add construction adhesive or install blocking where it is loose.
Leak from the refrigerator water line
A weeping ice-maker connection behind the fridge can soak the floor for months. We replace the line or valve and the damaged subfloor under it.
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.
Floor too thin for tile
Tile needs a stiffer base than vinyl. We add a layer of plywood or reinforce the framing before a tile floor goes in.
Where we look first
- Finding and stopping the leakNo new subfloor goes in until the water that ruined the old one is stopped.
- Moving appliances and cabinetsThe dishwasher, fridge or range comes out, and toe kicks or a sink base are removed if the damage runs under them.
- Moisture testingWe measure the wood moisture to set the repair boundary and confirm it is dry.
- Cutting out damaged subfloorSoft and rotted sections are cut back to sound wood, ending on joist centers or new blocking.
- New subfloor panelsTongue-and-groove plywood or OSB of matching thickness, glued to the joists and screwed down.
- Leveling and flatteningWe level the patch to the rest of the floor and check it with a straightedge.
- Ready for flooringSubfloor solid and clean; we can lay the new floor or coordinate with your flooring installer.
Common fixes and parts
Leveling compound and patchCement-based leveler or patch to fill low spots before the finish floor.
Tongue-and-groove plywoodPlywood panels with interlocking edges that keep seams from moving.
Sister joists and blockingFraming reinforcement that stiffens the floor and backs every seam.
OSB panelsCommon in newer construction and fine when kept dry, but its edges swell if it gets wet.
Construction adhesive and subfloor screwsFastening that grips the joists instead of working loose like nails.
Before and after: kitchens near Geneva
Problem
Fixed
DetailGeneva kitchen, two-story colonial from the 1990s: kitchen subfloor repair
The site: a two-story colonial from the 1990s in Geneva. What we started with: 12-inch beige ceramic tile and black appliances. The main complaint was a floor that gave underfoot by the sink. The result: new plywood subfloor glued and screwed down in front of the dishwasher, ready for flooring. The job covered finding and stopping the leak, cutting out damaged subfloor, plus leveling and flattening.
Before
AfterKitchen Subfloor Repair in a two-story colonial from the 1990s, Batavia
This one is a two-story colonial from the 1990s in Batavia. What we started with: beige sheet vinyl and almond appliances. The reason for the call: a spongy floor in front of the dishwasher. The result: new plywood subfloor glued and screwed down in front of the dishwasher, ready for flooring. On site this meant finding and stopping the leak, cutting out damaged subfloor, plus new subfloor panels.
Kitchen Subfloor Repair in Batavia →
Before
AfterWest Chicago kitchen, 1980s two-story: kitchen subfloor repair
A 1980s two-story in West Chicago, a typical kitchen for West Chicago. Before: oak parquet and white appliances. The main complaint was cupped boards over a wet subfloor. Finished kitchen: new plywood subfloor glued and screwed down in front of the dishwasher, ready for flooring. Work included finding and stopping the leak, moving appliances and cabinets, plus moisture testing.
Kitchen Subfloor Repair in West Chicago →
Before
AfterGeneva kitchen, 1980s two-story: 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 Geneva →
Before
AfterKitchen Remodeling in a two-story colonial from the 1990s, Geneva
Cabinets in warm taupe with satin brass pulls, warm walnut butcher block counters, a gray beveled subway tile backsplash, light beige 18x18 porcelain tile flooring and recessed lights and under-cabinet LED strips.
Kitchen Remodeling in Geneva →From diagnosis to fixed
- Inspect the floorWe walk the floor, check it from the basement if possible and measure moisture.
- Stop the waterWe repair the source of moisture first.
- Rebuild the subfloorDamaged wood out, framing reinforced, new panels glued and screwed; small repairs often take a day or two.
- Finish the floorThe finish floor is restored and appliances go back.
Kitchen Subfloor Repair questions from Geneva homeowners
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?
We look at the stain pattern, check the dishwasher, sink and fridge connections and use a moisture meter to find the wettest spot.
Do I need a permit for subfloor repair?
Non-structural patches typically don't need one; joist work generally does. We check with the local building department.
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.
Can you fix squeaks without tearing up the floor?
Often, if the joists are reachable from the basement. We add blocking, shims or screws from below.
Does kitchen subfloor repair need a Geneva building permit, and who files it?
Permits go through Building & Zoning Division (Building Division), 109 James St., phone 630-262-0280. When your scope needs one, we prepare the application and schedule the inspections.
Do I need a permit for kitchen subfloor repair in Geneva?
It depends on the scope. Geneva's rule in short: A building permit is required before any construction or alteration; separate Kitchen Remodel permit form exists. We handle the permit when one is needed with Building & Zoning Division (Building Division), 109 James St..
Do you work in my part of Geneva?
Yes. Our crews work across Geneva, including Mill Creek — ZIP 60134, 60510 — and nearby Batavia, St. Charles, West Chicago.
Working in Geneva
- A lot of Geneva kitchens date from the 1990s. We know these layouts well and what is worth keeping.
- Most Geneva homes are single-family. We protect floors and driveways and leave the site clean every day.
- Live in the Geneva Historic District and designated Historic Landmarks? Interior kitchen work is usually not reviewed. We check before anything touches the exterior.
Mill Creek
ZIP 60134ZIP 60510
Kitchen Subfloor Repair nearby
Other kitchen services in Geneva
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.