The warranty on stained concrete: 12 clauses to look for

The warranty on stained concrete is mostly a promise about the sealer and the prep, because acid stain reacts with the slab and becomes part of it. On September 28, 2026, we checked 28 stain and sealing installers across Oklahoma, Arkansas, Mississippi, Missouri, Tennessee, and Texas, plus 9 stain and sealer makers. Only 10 of those 37 published real terms, and 7 of the 10 came from the makers, not the crews.

Only 3 of the 28 installers published any written terms, and only 2 listed what they exclude. This guide covers the 12 clauses we would ask about before signing, sums up the real terms as we read them on September 28, 2026, and gives the question that turns each one into something you can hold a contractor to.

Some exclusions are normal, and ours has them too. Our own terms leave out the slab underneath, moisture coming up through the slab, cracking, color and color matching, sun fading, normal wear, poor maintenance, and damage by others. They also leave out an area someone else repaired before we could inspect, with an exception for emergency repairs, and our lifetime term runs only as long as the original purchaser owns the property. The trouble starts when a clause names a cause nobody can test for, or lets the company be the only judge.

What we found in each state

We searched each state’s larger markets for acid stain, dye, and concrete sealing contractors, then read whatever each company published. Stain and sealer makers sell into every state, so they get their own row.

Arkansas, Mississippi, and Missouri had zero companies with published terms. In Arkansas we found only one stain or sealing company that made any claim at all. Several pages in Tennessee and Texas loaded as blank script shells with no readable text, and we counted those as failed rather than guess what they said.

1. Slab exclusions that end in “not limited to”

Every fair warranty on a stained floor excludes the slab. Concrete moves, cracks, and pushes moisture and salts up to the surface, and no stain or sealer fixes that. One Oklahoma installer publishes one of the clearest lists we found. It excludes failures from slab movement, a failed slab, water vapor or other moisture coming through the slab, and efflorescence, plus abuse and more, and says the list is not limited to those causes. It adds that it cannot stand behind crack repairs and fills, because slabs move on their own.

We will be straight about this one: our own exclusion list reads close to theirs, down to the line on crack fills. Those exclusions are fair. One thing is not: the moisture exclusion names no test and no number, even though ASTM F1869 and ASTM F2170 both measure slab moisture before a sealer goes down.

A sealer that fails over a damp slab and a sealer that fails from poor application can look alike. Both can turn white or cloudy, lift in patches, or trap a haze under the surface. The difference shows up in testing, not in the look. A calcium chloride test under ASTM F1869 measures how much vapor leaves the surface in 24 hours, and a relative humidity probe under ASTM F2170 reads moisture inside the slab. Run before the sealer goes down, either one sets a baseline both sides can point to later. Run after a failure, with no baseline, a test only tells you what the slab is doing now, not what it did the week the crew sealed it. That is why a moisture exclusion with no test attached hands the answer to whoever writes the denial letter. Ask for the reading before the work starts, and keep your copy.

Ask: “Is your exclusion list complete as written, what moisture test will you run before you seal, and will you write the result on my paperwork?” Our moisture testing guide explains both tests.

2. When is fading normal, and when is it a failed floor?

Color is the hardest part of a stained floor to judge, and the easiest to exclude. One Texas stain company offers a limited term of about 3 years on stain work, and about 1 year on decks and concrete staining. It excludes natural graying, fading, customer negligence, and hail or sprinkler damage, and warns that light and dark spots can show because of the surface it started with. The Oklahoma installer makes no promise on color, color match, or how the floor fits your design, and says cement-based products vary a lot in finish and color.

Ours says much the same. We exclude fading from sun and light, and we make no promise on color or color match, because concrete takes stain differently from one pour to the next. That part is honest. The risk is a color clause that swallows a real defect. Stain that was never neutralized and rinsed, or a sealer rolled too thin, can wear through in a walkway within roughly the first 12 months. That looks like fading, but it is workmanship.

Ask: “If color wears off in a traffic lane in the first year, how will you tell normal fading from a sealer that failed, and what will you check?”

3. Maker’s terms that leave out the installation

One national sealer maker offers a 100-year term on some products. It promises those sealers will stay bonded to properly prepared surfaces, and it leaves labor out because it has no control over prep or application. That is fair for a maker. It did not grind your floor or roll the sealer.

The trap is an installer who hands you the maker’s document as the only written coverage. Prep and application are where most sealed floors fail. Under a document built on properly prepared surfaces, a floor that failed from poor prep belongs to nobody.

Ask: “Which written document covers mistakes in prep and application on my floor, and for how many years?”

Is labor covered, or only the sealer?

This is clause 4, and it is where long terms shrink. The sealer maker limits what it owes to replacement product only, with no labor, and prints that part in capital letters. Its 100-year section says again that labor is not included. The Oklahoma installer stands behind its own work for about one year after the install is complete. A covered sealer repair has three costs, and a term can leave out any of them:

• Product: the sealer itself, which is all a maker’s replacement term supplies.
• Labor: stripping or grinding, rinsing, drying, and recoating, which the sealer maker’s terms leave out.
• Downtime: days a shop, store, or clinic sits closed. The Oklahoma installer excludes loss of use and lost profits. Nobody expects a floor contractor to pay a store’s lost sales, but ask who pays to clear the room and how many days a repair takes.

On a stained floor, the sealer is the cheap part of a repair. Stripping a failed topical sealer takes a chemical stripper or a light grind, a rinse, drying time, and then a fresh coat or two, and the crew’s hours cost far more than the pail. A maker that replaces product only has done what makers do, since it never set foot on your floor. That is reasonable for the maker. It is also why the installer’s own workmanship terms matter more than the brand name on the pail. A long term from the maker and a short one from the installer can leave you with years where the only thing anyone owes you is a new bucket of sealer. Ask for both documents, and read which one pays for the crew to come back, for how many years, and who decides what caused the failure.

Ask: “For how many years is labor included on my floor, and what do I pay if a covered failure happens after that?”

Who has to prove the moisture reading?

Clause 5 flips the moisture problem around. For any claim, the sealer maker asks the owner to supply the slab moisture reading from the day of application, the device used to take it, and a time-stamped photo of the reading and the device from before the sealer went down. Without that paperwork, its terms void the coverage in full.

We like half of this. A moisture reading taken before the sealer goes down is the fairest record there is. The trouble is who holds it. A homeowner cannot produce a reading the installer never took or never handed over, so a claim can die on missing paper before anyone looks at the floor.

Ask: “Will you test moisture before you seal, photograph the reading, and give me a copy with my paperwork?”

How long do you have to report a problem?

Clause 6 is the claim clock. The sealer maker asks owners to write within about 15 days of finding the defect, by mail to its factory, and about two weeks goes fast. It also says a repair does not extend the term, so a repair does not pause the clock on the rest of the floor. Our own terms ask for written notice inside the term and reasonably soon after you notice the problem, with no fixed day count. A short clock is not unfair by itself if it starts when you actually find the defect. Sealer failures start small, though, as a dull patch or a faint white haze.

Ask: “When does my clock start, how many days do I have to report in writing, and where do I send it?”

7. Spot repairs that show

This clause is in ours too. The Oklahoma installer repairs on a spot basis, says the patches will show a little, and treats some debris in the sealer as normal. Our own terms say a spot repair will be slightly noticeable, and that some debris in seal coats is normal. On a stained floor that is simply true. Fresh stain on old concrete rarely matches, because the slab around it has aged, worn, and been sealed for years.

The fair question is how big a failure has to get before the fix covers the whole room instead of a patch. A 2-foot repair in a closet is one thing. A dozen patches down a hallway is a different floor.

Ask: “If repair patches show badly, at what point would you reseal the whole room, and who makes that call?”

What reseal schedule keeps your coverage in force?

Clause 8. Every sealed floor needs resealing, and topical sealers usually need it every 1 to 3 years. Most terms we read exclude poor maintenance: the Oklahoma installer lists lack of maintenance, and ours excludes damage from failing to maintain the floor. That is fair. The Texas stain company goes a step further and recommends restaining about every 3 to 5 years, but a recommendation on a web page is not a condition in a contract.

What we did not find, in any published terms, was a reseal interval written next to the maintenance exclusion. Without one, a maintenance exclusion means whatever the installer says it means after the floor wears. Ask any installer, us included, to write the reseal interval into your project paperwork.

Ask: “What reseal interval keeps my coverage in force, and will you write it on the paperwork I sign?”

Can a call about your floor cost you money?

Clause 9. The Texas stain company bills calls about items outside its terms at retail repair prices plus a $295 trip charge. Paying for work that really is outside the terms is normal. The catch is who decides what counts as covered. If the company makes that call after it shows up, the $295 lands on you either way. It also voids all coverage on the job if the invoice is not paid in full, so holding back money over a defect can cost you the coverage on the rest of the floor.

Ask: “Is there any charge to have you look at a problem on my floor, who decides whether it is covered, and what happens to my coverage if we dispute the bill?”

Which projects get the longer term?

Clause 10. Two installers published a range with no rule for where your floor lands. One Tennessee installer says every floor gets a term that starts at about one year, longer depending on the system. One Texas sealing company offers terms as long as about 7 years on certain projects and asks you to call for details. Neither page says which systems or projects get the longer term.

Our own term also varies by project, so we will not pretend otherwise. It starts at one year, and polished floors and flatwork we pour ourselves carry longer terms. The fair version puts the term for your floor on the estimate before you sign. A phone call is not a document.

Ask: “What term does my floor get, and will you write it on the estimate I sign?”

Other installers stopped at a number. One Missouri sealing company shows a badge for a term of about 15 years on its home page, and one Arkansas refinishing company advertises a term of about 3 years on all its refinishing work. We found no written terms behind either one.

What does “lifetime” mean on a sealed floor?

Clause 11. Another Texas sealing company advertises a lifetime term on every floor on its sealing page, with no definition we could find. The sealer maker’s terms cannot pass to a new owner and end if the property is sold, leased, or rented to someone else.

Ours works the same way on the transfer point: our lifetime workmanship term runs only as long as the original purchaser owns the property. That is not a trap when it is written down. Federal advertising rules expect a lifetime claim to say whose lifetime. The trap is a sales page that says “lifetime” and leaves the definition out.

Ask: “Whose lifetime, does it end if I sell or rent the property, and do I have to register it?”

Where would a dispute over your floor be decided?

Clause 12 lives in the fine print. The sealer maker sends any dispute to arbitration, through a service both sides agree on or a national arbitration body, and it excludes downtime cost along with lost profits. Arbitration is not a scandal, and many contracts use it. But it means no jury, and you should know that before the sealer goes down, not after it fails.

Ask: “If we disagree about a claim, who decides it, where, and who pays for that process?”

How can you tell if a contractor will honor the warranty on your floor?

Read their past, not only their paper. The clauses above matter most in the hands of a company that uses them to avoid fixing its own mistakes. A fair set of terms from people who fight every claim is worth less than a short one from people who come back to reseal.

Three questions tell you more than the number of years. First, ask for a customer whose sealed floor had a problem, and how the company handled it. Every stain crew with a few years of floors has resealed one it wished it had done better, and a crew that claims otherwise is new or not telling you the whole story. Second, ask what they test and record before they stain: moisture under ASTM F1869 or ASTM F2170, a water drop test to see whether old sealer or curing compound will block the stain, and the reseal interval for the sealer they picked. Third, ask what they would say if your walkways went dull and white in the second year. Listen for whether the answer starts with a visit to the floor or with a list of exclusions. Get the first answer in writing, right next to the term.

The same review for other floors

We ran the same review for the other floors we install, across the same 6 states, and sum up real, dated terms in each guide:

• Epoxy floors
• Polished concrete
• Concrete overlays and resurfacing

We publish a plain-English summary of our own workmanship warranty, including what it excludes on every floor: the slab underneath, moisture coming up through the slab, color and color match, and damage from missed maintenance. Our stained concrete service tests an existing slab before we recommend stain, and our sealed concrete service explains which sealer fits which room. For how stain compares with a polished finish, see concrete staining vs. polished concrete. When you are ready to compare real numbers, get your price now.