Subfloor Repair and Leveling in Centennial, CO
Squeaks, soft spots and out-of-plane slabs corrected before your new floor goes down.
The Line Item Other Contractors Spring On You
This is the page we most want Centennial homeowners to read, because subfloor repair and leveling is the single biggest source of surprise cost in flooring, and it is entirely avoidable. The industry pattern is familiar: a low square-foot quote, demolition on a Monday, and a phone call by lunchtime explaining that the deck needs work and the price has moved. We quote it at the measurement instead, by lifting a corner of your existing floor and straightedging the room before you sign anything. In this area the usual culprits are expansive clay moving a slab-on-grade basement out of plane, plywood that flexed and squeaks in a 1970s split-level, and water damage around a dishwasher, water heater or a failed supply line.
What Subfloor Work Covers
Every item below is priced as its own line on your estimate.
Flatness survey with a ten-foot straightedge
We map the high and low points against the tolerance your chosen floor requires, because tile, rigid-core plank and carpet demand very different things.
Moisture testing of slabs and wood decks
Calcium chloride or relative-humidity probe testing on concrete and meter readings on plywood, documented so the new floor's warranty stands up.
Self-leveling underlayment
A pourable compound that finds its own plane, primed and poured to fill dips across a slab or a wood deck, then left to cure before anything goes over it.
Concrete grinding
High spots and trowel ridges ground down on extraction, the counterpart to filling the lows, so we are not pouring compound over the whole room unnecessarily.
Squeak elimination
Loose sheathing screwed back to the joists with the right fastener, and shimming from below where there is basement access.
Soft spot and water-damaged panel replacement
Delaminated or rotted plywood cut out between joists and replaced with matching thickness, blocked and fastened properly.
Joist and blocking repair
Sistering a damaged joist or adding blocking where deflection is the underlying cause rather than the sheathing itself.
Plywood underlayment installation
A new layer of underlayment-grade ply where the existing deck is sound but too thin or too rough for the finished floor being installed.
Crack treatment on slabs
Non-structural cracks filled and bridged, or an anti-fracture membrane specified where movement is likely to continue.
Written documentation of everything found
Photographs, readings and a plain description of the condition, so you have a record of what was under your floor.
How We Handle the Deck
- Step 1
Lift a corner and look
At the free measurement we pull back a section of the existing floor in the most telling spot, straightedge the room, and take moisture readings. It takes a few extra minutes and it is the reason our estimates hold. You see any subfloor cost in writing before you commit to anything.
- Step 2
Repair after demolition
Once the old floor is out, the full deck is visible and we complete the repairs — screws into loose sheathing, panels swapped where needed, grinding and leveling compound poured. We confirm against the original quote and show you photographs of anything that differs from what we projected.
- Step 3
Cure and verify
Leveling compound needs to cure before a floor goes over it, commonly overnight and sometimes longer on a thick pour. We re-straightedge and re-test before installation begins, because pouring compound is only useful if someone checks the result.
Why This Is Our Favourite Page
We quote it before you sign, not after demolition
This is the promise the whole company is built on. Competitors benefit from discovering subfloor problems late because the homeowner has no leverage by then. We would rather have a higher-looking estimate that turns out to be the final number.
We fix causes, not symptoms
Pouring leveling compound over a deck that squeaks because the sheathing is loose just buries the problem under a flat surface. We fasten, block or sister first and level second.
Subfloor-only work is welcome
If another contractor is installing your floor, or you are doing it yourself, we will happily take on the prep alone and hand over a flat, tested, documented deck.
- Licensed & Insured
- Subfloor Prep Quoted Before You Sign
- Documented Moisture Testing
- Free In-Home Assessment
- Written Workmanship Warranty
- Manufacturer Flatness Tolerances Met
Find Out What Is Under Your Floor First
A flooring estimate that has not looked beneath the existing floor is a guess, and guesses get corrected at your expense. Book a free measurement and we will lift a corner, straightedge the room, test the moisture and put the real prep cost in writing.
(303) 578-4309(303) 578-4309 — book a subfloor assessment