Concrete Resurfacing in Austin, TX
Concrete resurfacing lays a new cement-based wearing surface over a worn, pitted or scaled slab, and in Austin what decides it is whether the old slab is sound and whether its cracks still move over shrink-swell clay. This page covers floor slabs: garages, shops and patios. A resurfacer is seldom the last layer; a coating, a stain or a polish usually follows, and ARDEX says its K 301 topping "must be sealed or coated." Quikrete calls its Re-Cap resurfacer "a special blend of Portland cement, sand, polymer, and other additives designed to provide a shrinkage compensated repair material." We grind with diamond tooling to the profile the product sheet names, repair cracks and spalls first, carry the joints up through the new layer, and say in writing which cracks will show again.
The national surveys price resurfacing by the square foot, with the finish on top extra. HomeGuide's February 2026 page runs from $3 to $7 a square foot. HomeAdvisor's June 2026 page sets the average job at $2,000 inside a normal range of $1,000 to $5,000, and Angi's July 2026 page stretches from $600 up to $13,000. Fixr's January 2025 garage repair page lists resurfacing at $960 to $2,400, with spalling and pitted concrete each at $500 to $2,000. Resurfacing plus an epoxy coat on a garage comes to $4 to $10 per square foot in HomeGuide's rows. All are national figures; no survey we cite prices Austin. Our cost page sets the rows side by side.
A resurfacer is spread thin with a squeegee or trowel; a self-leveling topping is poured and flows level. Quikrete's Re-Cap (No. 1131-47, revised January 2023) builds from a feather edge up to 1/2 inch in passes no deeper than 1/4 inch, a 40 lb bag covering about 16 square feet at 1/4 inch. ARDEX CD (updated July 2026) installs from 1/16 to 1/8 inch, and Euco Re-Cover, listed for "Garage floors," from featheredge to 3/8 inch. Toppings run thicker: ARDEX K 301 installs from 1/4 to 3/4 inch neat, and CTS's Rapid Set TRU needs at least 1/8 inch over the highest point.
The slab has to be sound before anything goes on it; Sherwin-Williams' Form G-1 (revised 02/26) says surfaces for its resurfacers "must be structurally sound and clean." The sheets then grade the surface by concrete surface profile (CSP), the ICRI 310.2R roughness scale from CSP 1, acid-etched, to CSP 10: Euco Re-Cover asks for "a profile of at least CSP 2," and ARDEX K 301 and CTS TRU for CSP 3 to 5 under an epoxy primer with sand. ARDEX CD's sheet says "Do not use acid etching," and our diamond grinders carry the dust collection OSHA's silica rule names. Quikrete wants the slab saturated surface dry (SSD), soaked with no standing water, and bare: "Apply only to bare concrete." By our sum of the ACS 2020-2024 decade counts (table B25034), 136,580 City of Austin housing units date from before 1980, a count of housing, not slabs; for a new pour, Sakrete's sheet waits until it has cured 7 days.
Each sheet sets its own working, foot and vehicle times. Quikrete's Re-Cap gives "a working time of about 20 minutes at 73 degrees F (23 degrees C)," a second coat within 24 hours, 24 to 48 hours of moist curing, and "Walk on in 8 hours and drive on in 24 hours." Sakrete's Flo-Coat takes light foot traffic in 4 hours and, per its product page, vehicles in 72 hours. The finish adds a wait; ARDEX K 301 asks 48 to 72 hours before a solvent-borne or 100% solids coating up to 20 mils. Before we come, empty the garage and plan to park outside until the vehicle time passes; we put those times in writing from the products' own sheets.
To price the job we need the slab's size and use, what covers it now and the finish you want. After a visit to measure and test the slab, our free written quote names the products, steps, dates and price, what is and is not covered, and the cracks we expect back. The City of Austin's residential exempt list includes "A sidewalk, driveway, or concrete flatwork that is not located in the public right-of-way" and "A foundation repair that does not exceed 128 square feet"; check with Austin Development Services when in doubt. Texas Comptroller publication 94-116 taxes nonresidential repair on "the total amount charged" and says "Labor to repair, remodel, or restore residential real property is not taxable"; your quote states which applies, and the Comptroller's office or your accountant rules on it.
Surface damage a resurfacer is made to fix
Resurfacing repairs the top of a slab, not the slab itself. Each sign below is a surface defect named by the National Ready Mixed Concrete Association (NRMCA) or the Portland Cement Association (PCA), and it points to resurfacing when the slab beneath is sound and still.
- A finger rub or a broom raises fine powder from the surface, which PCA IS177 defines as dusting.
- The top skin has flaked away and the stone shows through, the loss of surface mortar PCA IS177 calls scaling.
- Small cone-shaped pits mark the floor where stones near the top broke out, the popouts NRMCA CIP 40 describes.
- Broken edges and shallow holes run along the saw cuts, the "elongated cavities along joints" in PCA's definition of spalling.
- A hammer tap sounds hollow in patches, the delamination NRMCA CIP 20 repairs by removing the loose layer and patching, or by grinding and overlaying.
- Old patches in mismatched colors make the floor look pieced together, and Sika offers its resurfacer "as a coating over newly repaired concrete to provide a uniform appearance."
Stop at resurfacing if the slab itself moves. Wolverine Coatings' preparation bulletin (Rev 230913) says a slab "that is crumbling, rocking back and forth, heaving, or sinking is an unlikely candidate for coating without repair," and HomeGuide's February 2026 resurfacing page says cracks wider than 1/4 inch "typically indicate foundation problems." For those slabs, the choice below turns to lifting or replacement.
Austin clay, slab movement and why repaired cracks reopen
A repaired crack can reopen through new material when the slab under it still moves; ARDEX's K 301 sheet says thin, non-structural overlays "are not capable of restraining movement in the structural slab." East of the Balcones Escarpment, the NRCS gives Houston Black clay "High shrink-swell potential and cracks that are 1.3 to 10 cm (1/2 to 4 in) wide at 30 cm (12 in) depths during dry periods," cracks in the soil that "remain open for 90 to 150 cumulative days in most years." None of our sources measures what that clay does to a slab above it. NRMCA CIP 4 notes that concrete "deflects depending on load and support conditions," and ICRI calls a crack whose cause "is still at work" active and one "not likely to become active in the future" dormant. To honor a joint or crack, in the makers' term, is to carry it up through the new layer.
ARDEX CD requires that "all moving cracks, must be honored up through the entire assembly," since "Cracks may telegraph up into the surface in any area that exhibits movement," and pre-fills dormant cracks wider than a hairline (1/32 inch) instead. Across the escarpment to the west, Eckrant soils of the Edwards Plateau sit very shallow to shallow over hard limestone, per the NRCS, and the Handbook of Texas says that at Kyle "the Balcones Escarpment meets the blackland prairie" (see slabs in Kyle).
Dusting, scaling, popouts and spalls: the causes on record
Each defect has a cause the concrete bodies name, and the cause sets the fix. NRMCA CIP 1 traces dusting to finishing "while bleed water is on the surface," to "Insufficient curing," and to carbonation from "open salamanders, gasoline engines or generators," that is, open-flame heaters and engines; the fix is to strip the weak layer, harden what remains with a silicate, and in severe cases grind to durable concrete and add a topping. Scaling, per NRMCA CIP 2, comes "as a result of exposure to cycles of freezing and thawing," worsened by de-icers.
A popout, per NRMCA CIP 40, is "a small, generally cone-shaped, cavity" left when a porous stone near the surface takes up water that then freezes and expands. Austin does freeze: in NOAA's 1991-2020 normals, the low reaches 32 degrees F or less on a mean 11.9 days a year at Camp Mabry and 33.0 at Austin-Bergstrom. PCA IS177 traces spalls to "pressure or expansion within the concrete, bond failure in two-course construction, impact loads, fire, or weathering." PCA says thin overlays or grinding can usually remedy scaling "if sound, air-entrained concrete is present below the scaled surface," NRMCA uses a thin overlay when popouts are "too numerous to patch individually," and spalls are cut back and patched.
Resurfacer temperature limits set against Austin's normals
Two common resurfacer sheets stop at 90 degrees F, and Austin's normal summer highs run above that. Quikrete's Re-Cap sheet says air and concrete "should be in the range of 50 degrees F (10 degrees C) to 90 degrees F (32 degrees C)," and Sakrete's Flo-Coat sheet gives the same band for "Air, mix and substrate temperatures." NOAA's 1991-2020 normals for Austin Camp Mabry give a normal daily high of 93.2 degrees F for June, 96.6 degrees F for July, 97.8 degrees F for August and 91.4 degrees F for September, with a mean of 122.8 days a year at 90 degrees F or more. These station figures measure outdoor air, not the slab or the garage.
In "dry, windy or hot conditions," CTS's NewCrete sheet says to "mist with water to maintain a continuously wet surface until the product has achieved sufficient strength." In winter, Sakrete wants product, air and surface "above 50 degrees F (10 degrees C) for a minimum of 24 hours," and ARDEX CD is not installed "if freezing temperatures could occur within 24 hours." The normal January low outdoors is 41.8 degrees F at Camp Mabry and 37.7 degrees F at Austin-Bergstrom; our Austin numbers page carries both stations. Before each mix we measure slab temperature, air temperature and dew point, and each layer is timed to fall inside its own sheet's window.
Patch, resurface, top, lift or replace the slab
The choice turns on how deep the damage runs and whether the slab still moves. ACI's overlay guidance puts the first step plainly: "A condition evaluation of the concrete slab is required prior to making a decision on the type of an overlay to be installed." All prices below are national.
Patch the defects only
Spalls, popouts and holes are cut out and filled. PCA IS177 says to remove spalled concrete "to a depth of at least 40 mm (1-1/2 in.)" and extend the patch "about 100 mm (4 in.) beyond the edges of the unsound areas." Fixr's January 2025 page prices a patch at $150 to $1,000. It suits a sound slab headed under a coating such as a flake epoxy floor.
Resurface with a thin overlay
A polymer-modified resurfacer, from a feather edge to about 1/2 inch, renews a worn, scaled or patchy surface over the whole floor. HomeGuide's February 2026 survey prices a basic garage at $3 to $5 per square foot. It suits a sound, flat garage, shop or patio, under a coating or a stained concrete finish.
Pour a self-leveling topping
A topping poured over a primed slab, at least 1/8 or 1/4 inch thick depending on the product, flattens it; some, such as CTS's TRU at 3/8 inch or more, can be polished. HomeGuide's November 2025 leveling page lists $2 to $5 a square foot for self-leveling concrete. CTS does not recommend TRU "in locations subject to freezing temperatures," and the NWS climate summary puts outdoor sub-freezing temperatures on "33 days at Bergstrom" in an average year. It suits sound, out-of-flat interior floors, including future polished concrete floors.
Lift or replace the slab
A sunken slab can be raised by injecting cement grout or polyurethane through drilled holes, which a federally sponsored pavement guide, written for road slabs, calls slab jacking; a broken slab is cut out and poured new. HomeGuide's November 2025 leveling page prices mudjacking at $4 to $9 and polyjacking at $8 to $25 per square foot, and its November 2025 replacement page puts a garage floor at $10 to $16 or more, or $4,000 to $6,400 for a 20x20 two-car garage. It suits slabs that rock, heave, sink or have broken through.
A replacement pour falls under the City of Austin's concrete hours: its non-peak-hour permit page says installing concrete within 600 feet of a residence, church, hospital, hotel or motel "is not allowed between 7:00 p.m. and 6:00 a.m. unless a permit is issued as authorized under Section 9-2-21." A structural engineer runs $100 to $200 an hour in HomeGuide's February 2026 survey.
Concrete Resurfacing FAQs
How much does it cost to resurface a garage floor?
National surveys put a basic garage at $3 to $5 per square foot, and none prices Austin: HomeGuide's February 2026 survey gives that range, $4 to $7 for complex designs, and puts a two-car, 24x24 garage or driveway at $1,700 to $2,900. For do-it-yourself work, HomeGuide prices resurfacer at $20 to $40 per 40-lb bag covering 15 to 80 square feet, and Angi's September 2026 page puts DIY garage resurfacing at about $2 to $5 per square foot.
Can you resurface over cracked concrete?
Yes, once the cracks are repaired and the moving ones are carried up through the new layer, though a moving crack will show again. Sakrete's Flo-Coat sheet has cracks larger than 1/8 inch filled first with the same product mixed stiff, and Sika's Sikadur-55 SLV "Seals existing cracks by gravity down to 2 mils" but "is not appropriate for use in dynamic cracks." Over clay, find out first whether a crack still moves.
How long does concrete resurfacing last?
HomeGuide's February 2026 survey says "Concrete resurfacing lasts 8 to 15 years before needing any repairs," survey wording rather than a tested life. The data sheets show what shortens it: ARDEX says its CD dressing "should be sealed to prevent dusting and to help resist damage from standing water, salt or oil," and Sherwin-Williams warns "Not honoring dynamic joints can lead to cracks in the surface."
Is it better to resurface or replace a concrete slab?
Resurface when the slab is sound and only its surface is worn; lift or replace it when it crumbles, rocks, heaves or sinks. A Wolverine Coatings bulletin draws that line: "Surface deterioration is not necessarily an indicator of structurally unsound concrete." HomeGuide's February 2026 survey prices resurfacing at $3 to $7 per square foot, while its November 2025 replacement page prices a new garage floor at $10 to $16 or more, with concrete removal alone at $3 to $8.
Can you put epoxy over resurfaced concrete?
Yes, once the topping's sheet says it is ready and the slab passes the moisture test the coating's own sheet names. CTS calls TRU "ready for coatings in 12 hours," and Euclid gives Level Top Polish a "Stain or Coat Time" of 12 to 24 hours. Moisture still counts, since ARDEX says K 301 "is not a vapor barrier and will allow free passage of moisture vapor."