Concrete Floor Resurfacing
Concrete resurfacing restores worn, stained, or lightly damaged concrete slabs without the cost and waste of full replacement. Seattle Concrete specializes in resurfacing for driveways, patios, garage floors, pool decks, and interior commercial floors across King and Snohomish counties. If the existing slab is structurally sound, resurfacing typically costs 30–60% less than tearing out and repouring.
When resurfacing makes sense
Resurfacing works when the slab has surface-level damage: shallow cracking, spalling, scaling from de-icing salts, discoloration, or worn decorative finishes. It's not the right tool for slabs that are actively settling, heaving, or have structural cracks running through their full depth - those need leveling, replacement, or foundation work first. We assess the slab during a free on-site visit and give an honest recommendation.
Resurfacing methods
Repair overlays (thin-set cement-based product, ⅛–¼ inch) fill surface damage and provide a fresh uniform appearance - common for driveways and exterior slabs. Self-leveling overlays (⅛ inch to 1.5 inches) are poured to float level across floors being prepped for LVP, tile, or hardwood. Stained or polished resurfacing adds decorative character to existing slabs - often combined with a repair overlay as the base. All resurfacing is followed by sealer application suited to Seattle's wet climate.
Resurfacing cost in Seattle
| Method | Cost (per sq ft) | Notes |
|---|---|---|
| Basic repair overlay | $3–$5 | Fills surface damage, uniform appearance |
| Self-leveling underlayment | $4–$8 | For flooring-ready flat surface |
| Stained / polished resurface | $6–$10 | Decorative finish over sound slab |
Full slab replacement runs $12–$22/sq ft including demo - resurfacing is the cost-effective alternative when the structure is sound.
Frequently asked questions
How much does concrete floor resurfacing cost in Seattle?
Concrete floor resurfacing in Seattle typically costs $3–$10 per square foot depending on the extent of damage, the overlay type, and whether decorative finishes are added. A basic repair overlay runs $3–$5/sq ft, while polished or stained finishes run $6–$10/sq ft. Full replacement costs 3–5 times more - resurfacing is the cost-effective alternative. Get a free on-site estimate for your specific slab.
How long does concrete floor resurfacing take?
Most concrete floor resurfacing projects in Seattle take 1–3 days. Surface preparation (grinding or shot-blasting) takes half a day to a full day. The overlay or coating cures within 24–48 hours before light foot traffic, and 5–7 days before heavy use. Decorative staining or polishing adds 1–2 days to the timeline.
Do I need a permit for concrete floor resurfacing in Seattle?
Resurfacing an existing interior or exterior concrete slab typically does not require a permit in Seattle, because you are not changing the structure or adding impervious surface. However, if resurfacing is part of a larger remodel - such as a basement conversion or an addition - a permit may be required. When in doubt, check with SDCI before starting.
How long will a resurfaced concrete floor last?
A properly resurfaced concrete floor in Seattle can last 10–20 years with routine maintenance. The key factors are surface preparation quality, the overlay product used, and regular sealing every 2–3 years. Seattle's wet winters can degrade unsealed surfaces faster, so we recommend a high-quality penetrating or film-forming sealer after resurfacing.
What preparation does my concrete need before resurfacing?
The existing concrete must be sound - we assess and repair any active cracks, spalling, or delamination before applying an overlay. The surface is ground or shot-blasted to remove contaminants and open the pores so the overlay bonds properly. Concrete with significant structural damage or rebar corrosion may need full replacement rather than resurfacing.
