Rot found during a remodel
Pulling up old vinyl often uncovers dark, crumbling plywood. We cut it out to sound wood, treat the cause and install new panels before the new floor goes down.
Serving Addison & nearby Wood Dale, Itasca
Kitchen Subfloor Repair in Addison, IL
Soft, rotted or squeaky kitchen subfloors opened up, rebuilt and made solid in Addison homes.
- Technicians covering Addison ZIP 60101
- Diagnosis first, then a written price for the repair
- Honest advice when replacing makes more sense
Subfloor problems we fix in Addison kitchens
A soft spot in front of the dishwasher or sink usually means water has been reaching the wood under the floor for a while. In Addison we find and stop the leak, cut out the damaged subfloor, check the joists and install new panels that are glued and screwed down.
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.
Cracked tile or separating plank floor
Tile that cracks and click-lock floors that gap at the seams are often reacting to a subfloor that flexes or isn't flat. We fix the base so the finish floor stops failing.
Squeaks and creaks underfoot
From below in a basement, or from above with the flooring off, we find where the floor moves and stop it.
Soft spot in front of the dishwasher
When the floor gives under your foot at the dishwasher, the plywood has probably absorbed water. The fix is cutting out the soft area back to solid wood.
Swollen, mushroomed panel edges
Oriented strand board swells at the edges when it gets wet and doesn't shrink back. Those raised seams show through vinyl and plank floors and are replaced.
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.
Musty smell or stains in the basement ceiling
Signs from below often show up first. We trace them to the source and repair what is wet.
What we check and fix
- Finding and stopping the leakWe look for the source — dishwasher, sink, fridge line or an outside wall — and make sure it is fixed first.
- Moving appliances and cabinetsWe clear access to the damaged area, including under cabinets when needed.
- Removing the finish floorThe finished surface comes up over the soft area, with a cut line that makes the later patch easy to hide.
- Moisture testingMeter readings across the area tell us where wet wood ends and when it is safe to close the floor.
- Cutting out damaged subfloorWe remove the damaged area in a clean rectangle with every edge supported.
- Joist inspection and reinforcementWe check the framing beneath and reinforce it when it is damaged or too flexible.
- New subfloor panelsNew panels set flush with the existing floor and fastened with construction adhesive and screws.
Common fixes and parts
Underlayment layerAn extra plywood or backer layer that stiffens the floor for tile or smooths it for vinyl.
Leveling compound and patchCement-based leveler or patch to fill low spots before the finish floor.
Construction adhesive and subfloor screwsGlue and screws together keep the subfloor from moving and squeaking.
OSB panelsCommon in newer construction and fine when kept dry, but its edges swell if it gets wet.
Sister joists and blockingNew lumber fastened alongside damaged or weak joists, plus blocking that supports panel edges.
Before and after: kitchens near Addison
Problem
Fixed
DetailBefore and after: a 1980s two-story in Addison
This one is a 1980s two-story in Addison. What we started with: 12-inch beige ceramic tile and black appliances. The reason for the call: tiles cracking over a floor that flexed. 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, moving appliances and cabinets, plus removing the finish floor.
Before
AfterWood Dale kitchen, two-story colonial from the 1990s: kitchen subfloor repair
This one is a two-story colonial from the 1990s in Wood Dale. Before: oak parquet and white appliances. The reason for the call: cupped boards over a wet subfloor. The result: new plywood subfloor glued and screwed down in front of the dishwasher, ready for flooring. Work included finding and stopping the leak, removing the finish floor, plus joist inspection and reinforcement.
Kitchen Subfloor Repair in Wood Dale →
Before
AfterBefore and after: a two-story colonial from the 1990s in Glendale Heights
This one is a two-story colonial from the 1990s in Glendale Heights. The kitchen as it was: 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. Work included removing the finish floor, moisture testing, plus cutting out damaged subfloor.
Kitchen Subfloor Repair in Glendale Heights →
Before
AfterHardwood Floor Repair & Refinishing in a postwar bi-level, Addison
What changed: the oak floor sanded and refinished with a satin clear finish, grain visible and the water marks gone.
Hardwood Floor Repair & Refinishing in Addison →
Before
AfterAddison kitchen, 1960s ranch: kitchen remodeling
What changed: cabinets in dark teal with brushed nickel bar pulls, charcoal concrete-look quartz counters, a white 2x8 tile in a vertical stack backsplash, hickory luxury vinyl plank flooring and recessed lights and under-cabinet LED strips.
Kitchen Remodeling in Addison →The repair visit
- 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 floorNew flooring goes down over the repair, or we leave it ready for your installer.
Kitchen Subfloor Repair questions from Addison homeowners
Do I need a permit for subfloor repair?
For framing repairs, often yes. For a panel patch, usually no. We confirm before starting.
Who should I call for subfloor repair?
You need someone who handles both the structure and the finish floor. We do both.
Can you replace just a section of subfloor?
We do it often. The patch is sized to the damage and fastened to the framing.
How long does subfloor repair take?
It depends on how much is damaged and whether the wood has to dry. We give you a schedule with the estimate.
Do cabinets have to come out?
Only if the damage runs under them. We often remove a toe kick or sink base floor instead of the whole cabinet.
What is the Addison building department phone number?
Permits go through Community Development Department (Building & Zoning), phone (630) 693-7530. When your scope needs one, we prepare the application and schedule the inspections.
Do I need a permit for kitchen subfloor repair in Addison?
It depends on the scope. Addison's rule in short: Addison's Building Division states building permits are required by code for all work; most applications are reviewed within 10 business days through the online portal. We handle the permit when one is needed with Community Development Department (Building & Zoning).
Do you work in my part of Addison?
Yes. Our crews work across Addison — ZIP 60101 — and nearby Wood Dale, Itasca, Villa Park.
Working in Addison
- A lot of Addison kitchens date from the 1960s. We know these layouts well and what is worth keeping.
- Most Addison homes are single-family. We protect floors and driveways and leave the site clean every day.
- We know how Community Development Department (Building & Zoning) handles kitchen permits and pull them for you.
ZIP 60101
Kitchen Subfloor Repair nearby
Other kitchen services in Addison
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.