Stained Concrete Floors in Austin, TX
Stained concrete is a slab colored in the concrete itself and then sealed, and in Austin what decides the result is the slab you already have: its cracks and patches, what is stuck to it, and whether the clay under it moves. The ASCC Concrete Polishing Council defines an acid stain as a "Reactive solution of one or more metal salts stabilized by acid that produces coloration in a concrete substrate," and a dye as a colorant that "penetrates into the concrete while it is in solution". Because the color forms in the slab, a stain covers nothing: saw cuts, patches and cracks stay part of the floor. We stain interior slabs and patios, match the sealer to sun, traffic and cleaning, and write down which marks will remain.
HomeGuide's February 2026 national survey puts staining existing concrete at $3 to $15 per square foot, water-based stain at $3 to $15 installed and acid-based stain at $3 to $25. Its tiers climb with the work: basic, one color and sealant, $3 to $5; intermediate, two colors, $5 to $10; upgraded, with patterns and slab preparation, $10 to $15; high-end, stencils and scoring that mimic stone or tile, $15 to $25. By area it prints $1,500 to $7,500 for 500 square feet and $3,000 to $15,000 for 1,000. Angi's July 2026 national page says to expect $3,000 to $18,500, an average of $11,000, and prices old floor removal at $1.50 to $3.50 per square foot and concrete repairs at $800 to $2,700. No survey prices Austin. Our Austin cost page sets these national rows beside the coating rows.
A stained floor has two working parts: the color, which goes into the slab, and the sealer, a film on top that takes the wear. The color is an acid stain, a water-based stain or a dye, and each product's data sheet sets its coverage; HomeGuide's do-it-yourself note says "One gallon of DIY concrete stain covers 200 square feet". Angi's July 2026 stained-concrete page prices three sealers over stain, nationally: acrylic at $0.85 to $1.15 per square foot, polyurethane at $0.95 to $1.10 and epoxy at $3 to $7. For grip on a sealed floor, H&C's SharkGrip sheet mixes one 3.2 oz container into a gallon of H&C stain or sealer and calls the result "slip-resistant but not non-skid".
Preparation decides more of a stained floor than the stain does. A water drop test, ASTM F3191, shows where the slab will take color: Sika's description reads a quarter-size drop absorbed in under a minute as porous and one that sits longer as non-porous. Whatever stops the drop also stops a stain, so sealer, paint, curing compound and carpet or tile adhesive come off first; Sherwin-Williams' Form G-1 lists "oils, grease, wax, sealers, curing compounds, laitance, salts" among what a resin floor needs removed, laitance being the weak top layer of the slab. We strip films with diamond tooling, not acid, on grinders with a vacuum dust collector, the dry option in OSHA's Table 1 for walk-behind floor grinders under 29 CFR 1926.1153, and HEPA-vacuum indoors between passes. Cracks and holes are filled before the color, and we tell you which will still read through it.
HomeGuide's February 2026 page says staining takes 1 to 3 days, and its November 2025 sealing page says most sealers take "12 to 48+ hours to dry before you can walk on it"; the sealer's own sheet sets the times we hand you in writing. Before we arrive, the room is emptied and old flooring is up, or priced for us to lift. Outdoors, the weather sets the window: the NOAA 1991-2020 normals give Camp Mabry a mean of 122.8 days a year with an outdoor high of 90 degrees F or more, and the NWS office's Austin Climate Summary gives average yearly rainfall as 36.25 inches. Those describe outdoor air and rain, not a slab, so on the day we put a thermometer to the air and the slab, take the dew point, and open a sealer only if all three sit inside its sheet's limits.
For a written quote, tell us the room or patio, its size, what covers the slab now, whether cars park on it, how much afternoon sun it gets and the colors you want; photos of the cracks help. We come out, measure, test the slab's moisture by the method the sealer's sheet names, and walk the cracks and patches with you. The quote sets out the stain and sealer by product, each step, the dates and the price, what is and is not included, and which marks will still show. For a home, Texas Comptroller publication 94-116 says residential repair labor is not taxable and that tax on materials turns on whether the contract is lump-sum or separated; the quote spells out the tax line, and the Comptroller's office or your tax preparer settles any question.
When a stained floor suits the slab you have
A stain works with the slab as it is, so these signs concern that slab and the traffic on it. You can check each before we visit: the water drop is the ASTM F3191 test, and the soundness line comes from a Wolverine Coatings bulletin written for coatings, not stains.
- The slab under the carpet or tile is sound, not the crumbling, rocking, heaving or sinking slab Wolverine's coating-preparation bulletin calls "an unlikely candidate for coating without repair."
- A drop of water on the bare concrete darkens it and soaks in within a minute, the reading Sika's water drop description calls porous.
- The cracks are fine crazing, a web of shallow surface cracks, or a few hairlines you are content to see, since a stain colors them rather than hiding them.
- The floor carries feet and furniture rather than parked cars, because Euclid Chemical's bulletin puts most tire discoloration on acrylic cure and seals.
- Water runs off the slab rather than standing on it or soaking in from the soil beside it; Euclid Chemical ties efflorescence, the salts water leaves on a surface, to that movement.
- You want the concrete's own surface, trowel marks and variation included, to be the finished floor rather than a colored film laid over it.
Acid stain, water-based stain and dye: where the color goes
An acid stain makes its color by reacting with the concrete itself, while a dye soaks in and colors it. The ASCC Concrete Polishing Council's glossary calls acid stain a reactive solution of metal salts "stabilized by acid that produces coloration in a concrete substrate," and a dye a colorant that "penetrates into the concrete while it is in solution and results in a stained appearance." HomeGuide's February 2026 survey prices water-based stain separately, at $3 to $15 per square foot installed against $3 to $25 for acid-based, and the product's own data sheet governs how we apply it. Three things follow from color made inside the slab. The slab has to accept it, which the water drop test checks.
Nothing sits on top to even out what is in the concrete: the glossary gives a film-forming coating a film "greater than 0.05 mils" thick, and a stain lays no such film. And a stain is not the wear layer; HomeGuide says it lasts 5 to 20 years with regular maintenance, a survey statement and not our promise, while the same page has the sealer renewed every 1 to 3 years. Prosoco adds that even a floor hardened with its Consolideck LS densifier has a limit: "acid concentrates and acidic foods may etch the floor and leave a residual stain."
Sealers over a stain: acrylic, polyurethane and epoxy compared
The sealer decides how a stained floor wears, how it looks when wet and how often it comes back. Angi's July 2026 sealing page gives acrylic sealers two to three years and epoxy and polyurethane five to 10; HomeGuide's November 2025 sealing page gives acrylic 1 to 3 years and epoxy or urethane 5 to 15. Those are survey ranges, and traffic sets where a floor lands in them. Tires reorder the list. Euclid Chemical's Technical Bulletin CP-22 says "Most discoloration from plasticizer migration occurs on acrylic or styrene/acrylic cure & seals," and that epoxy and urethane sealers are "much more crosslinked" and so "less likely to tire mark".
Sun reorders it again: Stonhard notes that "Exposure to sunlight can cause discoloration and fading to your floor", and the epoxy makers print the same warning for their own products. Water makes a sealed surface slick; H&C's ClariShield sheet says "Surfaces may be slippery when wet," which is the job the SharkGrip additive does. Care is alike for all three. Laticrete's coating sheet recommends "a neutral pH cleaner" and walk-off mats inside and out, and Stonhard warns that rough brushes or pads "will abrade the surface and remove the coatings/sealers." We pick the sealer by sun, tires and cleaning.
Clay, cracks and salts: what an Austin slab shows through a stain
A stained slab shows its cracks and salt deposits, because nothing covers them. The Blackland Prairie east of the Balcones Escarpment, which divides Travis County, carries clays such as Houston Black, whose NRCS series description reports "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", and Heiden, whose NRCS series was established in Travis County in 1969. West of the escarpment, Eckrant soils of the Edwards Plateau lie shallow over limestone bedrock. NRMCA's CIP 4 says concrete "deflects depending on load and support conditions," and ICRI defines an active crack as one "for which the mechanism causing the cracking is still at work".
No source we hold ties that clay to slab cracks directly, but an active crack, filled, may reopen, and stained, it shows. Salt is the other mark. Euclid Chemical's bulletin CP-30 says efflorescence forms when water moving through concrete deposits salts at the surface, traces secondary efflorescence to water "after rain, from irrigation, or the surrounding soils", and notes that "Only 0.2 ounces of calcium carbonate per square yard of surface is needed to cause a significant shift in color." On a stained patio beside a watered bed, that shift is the risk, and Euclid's answer is "Diverting moisture away from the slab".
Stain and seal, stain and polish, resurface first, or coat
Three things decide the route: the slab's surface, its cracks and what crosses the floor. A stain shows the slab, a topping replaces its surface and a coating covers it. The four routes follow, with the makers' and surveys' words on each.
Stain and seal a sound slab
This is the route for an interior slab with few marks, or a shaded patio. HomeGuide's February 2026 basic tier, one color and sealant, runs $3 to $5 per square foot nationally. The sealer is the second choice, and the sealer comparison above sets the three side by side. In sun, epoxy is the weak pick: Sika says its Sikafloor-264 epoxy "Will discolor over time when exposed to sunlight (UV)".
Stain under a polished floor
Color can go into a slab that is then ground and polished, its gloss in the concrete, not a film. Angi's April 2026 polishing page prices staining or dyeing as a $2 to $5 per square foot add-on nationally, and Fixr's January 2025 national page says polishing runs up to $30 per square foot where the floor is first stained in a pattern or layers. Our polished concrete floors page covers grits and gloss levels.
Resurface first, then stain
A slab with scaling, many patches or old damage can take a self-leveling resurfacer made to be colored. Euclid Chemical's sheet for Level Top Polish lists "Decorative/polished wearing surfaces" among its uses and a "Stain or Coat Time" of 12 to 24 hours. Moving cracks still come through: the ACI says active cracks need stabilizing "to avoid being reflected through the topping". See concrete resurfacing for when a slab needs it.
Coat a garage floor instead
A garage with daily parking is the hard case for a stain. Euclid Chemical's bulletin CP-22 puts most plasticizer tire marking on acrylic cure and seals, and H&C's ClariShield wet-look sealer sheet says "Not recommended for garage floors". HomeGuide's February 2026 survey prices a stained 2-car garage at $2,000 to $14,400 nationally. A broadcast flake system covers the slab instead; flake epoxy floors explains its layers.
Stained Concrete Floors FAQs
How much does it cost to stain concrete floors?
Nationally, HomeGuide's February 2026 survey puts staining existing concrete at $3 to $15 per square foot, and Angi's July 2026 page says to expect $3,000 to $18,500 for a project, an average of $11,000. HomeGuide's rows run from $300 to $1,500 for 100 square feet up to $6,000 to $30,000 for 2,000, and sealing stained concrete adds $1 to $3 per square foot. No survey prices Austin. The number of colors, the sealer and what has to come off the slab move a quote within those ranges.
What is the difference between acid stain and water-based stain?
An acid stain makes its color by reacting with the concrete, while water-based stain is a separate product type that the surveys price on its own. The ASCC Concrete Polishing Council describes acid stain as metal salts "stabilized by acid that produces coloration in a concrete substrate." HomeGuide's February 2026 national figures are $3 to $25 per square foot for acid-based and $3 to $15 installed for water-based. The surveys do not compare colors or sun fastness, so the product's data sheet decides.
How long does stained concrete last?
HomeGuide's February 2026 page says the stain on concrete floors lasts 5 to 20 years with regular maintenance and that stained concrete should be resealed every 1 to 3 years; those are survey statements, not a promise. The sealer wears first. Angi's July 2026 sealing page gives acrylic sealers two to three years and epoxy and polyurethane five to 10. Grit and harsh tools shorten that, and Laticrete's coating data sheet says walk-off mats, inside and outside, "will help increase the life of the floor."
Will cracks show through stained concrete?
Yes: a stain colors the concrete rather than covering it, so cracks, saw cuts and patches stay in view. Crazing, which NRMCA's CIP 3 calls "a network of fine random cracks or fissures" rarely more than 1/8 inch deep, stays visible. Wider cracks can be filled first, but a filler is a different material from the slab, and a crack in a slab that still moves can reopen. Our quote lists the marks that will remain; where there are too many, a stainable resurfacer goes on first.
Do I need a permit to stain a concrete floor in Austin?
The City of Austin's exempt list names "similar finish work" but not concrete staining, so ask Austin Development Services if you are unsure. Its "Work Exempt from Building Permits" page lists "Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work" for homes and commercial buildings and says exempt work "must still comply with applicable Building Codes". The City's permit-question page adds that its results "should be confirmed with staff". A foundation repair is exempt on the residential list only if it does "not exceed 128 square feet."