Industrial Floor
Coating
Contractors
How to read the bid, what the red flags are, and how to line three industrial floor coating contractors up against each other honestly
Most plants get three quotes from three industrial floor coating contractors, with three different numbers on them and no way to tell what the difference buys. This page is the document we wish every facility manager had before they signed — including the parts that make our own bids harder to win.
Why bids from industrial floor coating contractors differ by 3x
A 40,000 square foot production floor will come back quoted at $120,000 from one bidder and $310,000 from another. Both industrial floor coating contractors wrote "epoxy floor system" on the cover page. Neither buyer can see what the gap is, so the cheap one usually wins, and roughly two years later somebody is standing on a peeling floor wondering what happened.
The gap is almost never margin. It is prep, film thickness, and whether anybody tested the slab. Those three line items are 60–70% of the honest cost of an industrial floor, and all three are invisible once the floor is down — which is exactly why they are the first things a thin bid removes. Everything below is a way of making them visible before you sign.
What you are actually buying from industrial floor coating contractors
You are not buying resin. Material is a minority of the price on nearly every industrial coating job. You are buying the removal of the old floor, the mechanical profiling of the slab underneath it, the repair of every joint and spall, a measured film of a known thickness, and a crew that will be on your site at 2am on a Sunday because that is the shutdown window you have. Compare industrial floor coating contractors on those things and the numbers start making sense.
What Industrial Floor Coating Contractors Put in a Complete Bid
Checklist- Slab testing
- ASTM F2170 RH, ASTM D7234 pull-off, joint and crack survey
- Prep method
- Named: grind or shot blast, to a stated ICRI CSP number
- Repairs
- Joints, spalls and delaminated patches, priced by linear or square foot
- Products
- Manufacturer and product name per coat, with the data sheets attached
- Build
- Wet and dry mils per coat, and a total system build
- Solids content
- Stated as a percentage — 100% solids or otherwise
- Cure schedule
- Foot, wheeled and full chemical cure, by hour
- Phasing
- Zones, shift windows, and what stays running
- Containment
- Dust shrouding, HEPA, odor and ventilation plan
- Warranty
- Who backs it — installer, manufacturer, or both, and for what
- Insurance
- COI naming you, plus safety plan and site orientation
- Exclusions
- Written. Every one of them.
Six red flags in a quote from industrial floor coating contractors
None of these are proof of bad faith. All of them are proof that the bid in front of you is not comparable to the others, and every one is a question you can ask in a two-minute phone call. Industrial floor coating contractors who intend to install what they wrote will answer all six without pausing.
No mil thickness anywhere in the document
"High-build epoxy" is a category, not a spec. Without a stated wet and dry film thickness per coat, the crew's incentive is to stretch the material, and the same product can go down at 8 mil or 25 mil from the same bid. Ask for mils in writing and watch which industrial floor coating contractors change their numbers.
Acid etching instead of mechanical prep
Etching is cheap, fast, and leaves an inconsistent profile plus salt residue that a coating then has to bond through. Diamond grinding or shot blasting to an ICRI CSP profile is the only prep we will put on a plant floor. If a bid says "clean and etch," that is the whole story of that bid.
No moisture test, or "we will check on the day"
In-situ relative humidity per ASTM F2170 takes 24 hours of equilibration and costs a rounding error against the job. A slab over 80% internal RH needs a vapor-mitigation primer that can add a dollar or more per square foot — so industrial floor coating contractors who skip that test are quoting you a hidden change order, or a failure.
"Epoxy" with no manufacturer, product or solids content
A 100% solids epoxy and a water-borne epoxy are both honestly called epoxy and differ by a factor of five in film build. Named products with attached data sheets are the minimum. Industrial floor coating contractors who will not name the product before you sign are reserving the right to substitute.
A one-coat system on a production floor
A primer that wets into the open profile, a body coat that carries the thickness, and a topcoat that carries the chemical and abrasion resistance do three different jobs. One-coat quotes exist, they are legitimate for dust control in a dry storage bay, and they are not a production floor. See our sealer page for where that tier genuinely fits.
One chemistry for the whole building
A plant is rarely one environment. The packaging hall, the CIP room and the freezer dock want three different systems. Industrial floor coating contractors who quote the same epoxy from wall to wall either have not walked the building or only sell one thing — and the washdown room is where you will find out which.
How to compare three industrial floor coating contractors on one page
Copy this into a spreadsheet, fill a column per bidder from their own documents, and call about anything blank. A bid that cannot fill the column is not a cheaper bid — it is a different scope.
| Line item | What a complete bid says | What a thin bid says | Cost impact |
|---|---|---|---|
| Moisture test | ASTM F2170 RH probes, results attached, mitigation priced or excluded in writing | Not mentioned | $0.80–$2.00/sq ft if mitigation is needed |
| Surface prep | Shot blast or diamond grind to CSP 2–3 (thin film) or CSP 5–6 (mortar) | "Clean and prep" or "acid etch" | $0.75–$2.50/sq ft |
| Old coating removal | Priced by square foot, with disposal | Assumed sound, excluded | $0.50–$2.00/sq ft |
| Joint & crack work | Linear feet, method, filler product named | Coated over | $4–$15/linear ft |
| System build | Primer, body, topcoat with mils each and a total | "High-build epoxy system" | Doubles or halves the material |
| Products | Manufacturer + product code per coat, data sheets attached | "Commercial-grade epoxy" | Unverifiable |
| Slip resistance | Aggregate type and grade, by zone | Not addressed | $0.20–$0.60/sq ft |
| Cure / return to service | Hours to foot, wheeled and full chemical cure | "Ready next day" | Your downtime |
| Phasing | Zone map, shift windows, off-hours premium stated | Continuous occupancy assumed | 10–25% for night/weekend work |
| Warranty | Named: installer workmanship term + manufacturer material warranty | "Lifetime" | Worth what it names |
| Mobilization | Line-itemed, especially on remote or small-footprint jobs | Buried | Fixed, so it hurts small jobs most |
Our own published range is $3–$14 per square foot installed depending on system and slab condition. If one of your industrial floor coating contractors lands well under that for a production floor, the difference is in this table somewhere. The cost guide walks through each driver.
Twelve questions for industrial floor coating contractors
Fifteen minutes on the phone with each bidder will separate them faster than any amount of website reading — including this page. Put all twelve to every one of your industrial floor coating contractors and the shortlist writes itself.
About the floor itself
- What internal RH did the slab read, and at what depth?
- What CSP profile are you cutting, and with what equipment?
- What is the dry film thickness of each coat, and how will you verify it?
- What is the solids content of the body coat?
- Which product, from which manufacturer, in each layer?
- What happens at the control joints?
About the job around it
- Who employs the crew that will be standing on my floor?
- What is your dust, odor and ventilation plan next to a live line?
- What exactly does the warranty cover, and who honors it if you close?
- What are the three most likely change orders on this job?
- Can I see a COI naming us, and your written safety plan?
- What does the schedule look like if the slab comes back wet?
Question seven matters more than it looks. Some industrial floor coating contractors sub the resin work out to a general painting crew, which is not necessarily worse — but you should know which kind you have, because the warranty, the safety plan and the person you call in year three all depend on the answer.
What "near me" really means on an industrial job
Searching for industrial floor coating contractors near me is a reasonable instinct and a slightly misleading one. Resinous flooring crews are mobile by nature: the equipment travels in a trailer, the work is measured in shifts, and a 60,000 square foot slab is worth driving a long way for. Plenty of large plant floors are installed by crews who flew in.
What proximity actually changes is mobilization cost as a fraction of the job. Bringing grinders, shot blasters, HEPA units, generators and a crew to a site is a largely fixed cost. Spread over 50,000 square feet it disappears into the per-foot number. Spread over a 3,000 square foot machine shop it can be 15% of the bid, and that is where genuinely local industrial floor coating contractors win on price alone.
The other thing proximity buys is the year-three phone call. A floor is a twenty-year asset; somebody has to be reachable when a forklift battery gets dumped on it. Ask all of your industrial floor coating contractors — including us — who will pick up, and where they are.
- Under ~5,000 sq ft: mobilization dominates; local usually wins
- 5,000–20,000 sq ft: compare mobilization as a line item, not a vibe
- Over ~20,000 sq ft: specification quality outweighs travel every time
- Multi-site programs: one spec, one product and consistent industrial floor coating contractors matter more than any single address
Insurance and safety documentation to require from industrial floor coating contractors
This is the part that gets sorted out at the guard shack at 6am on day one if nobody handles it earlier. Ask for all of it at bid stage — industrial floor coating contractors who work in plants will have it ready, and the ones who do not will take a week.
Certificate of insurance naming your facility
General liability, auto, and workers' compensation, with your entity listed as additional insured where your contract requires it. Check the limits against your own vendor requirements rather than assuming, and check the expiry date against the schedule — a policy that lapses mid-shutdown is a real problem.
- Additional insured endorsement, not just a certificate
- Waiver of subrogation if your contract asks for one
A written site safety plan and job hazard analysis
Silica exposure control for grinding and blasting, respiratory protection, flammable and combustible material handling, hot work if any, and confined-space coordination if the floor runs into a pit or trench. Vapors and monomer odor need a ventilation plan agreed with your EHS group before the first pail opens, not after the first complaint.
- Silica control plan for mechanical prep
- SDS package for every product on site
- Ventilation and occupancy plan for solvent or MMA odor
Crew orientation, badging and LOTO awareness
Whatever your plant requires of any contractor: site induction, PPE standards, escort rules, lockout/tagout awareness where the work touches equipment, and a named site lead who is on the floor rather than on the phone. Agree the escalation path before you need it.
- Named on-site supervisor for the duration
- Emergency stop and evacuation briefing per shift
Closeout documentation you keep
Batch numbers, as-applied film thickness records, the moisture test results, product data sheets, the warranty document, and a marked-up layout drawing of aisles and boundaries so the next recoat matches. This package is what makes year seven cheap instead of exploratory, and industrial floor coating contractors who installed to a specification produce it without being chased.
- As-applied DFT log by zone
- Layout drawing archived for recoats
- Maintenance and cleaning instructions for your janitorial contractor
Hiring, answered
Compare the four things that are invisible after the floor is down: the moisture test, the prep method and CSP profile, the stated mil thickness per coat, and the named products with their data sheets. Industrial floor coating contractors who intend to install what they wrote can produce all four in a day. Price the bids only after those columns are filled, because otherwise you are comparing a 30 mil floor to a 10 mil floor and calling one of them expensive.
It depends almost entirely on square footage. Mobilization is a fixed cost, so on a small bay a local crew is genuinely cheaper and on a large slab the difference vanishes into the per-foot number. Above roughly 20,000 square feet, the quality of the specification matters far more than the driving distance. Ask all your industrial floor coating contractors to line-item mobilization so you can see the trade rather than guess at it.
Two separate things, and a good bid names both. The installer warrants workmanship — adhesion, film build, finish — for a stated term. The manufacturer warrants the material against defect, usually only when an approved installer applied it to the published specification. "Lifetime warranty" with no named party and no stated failure mode is a marketing line. We are a Sherwin-Williams certified installer, which is what lets a manufacturer-backed warranty exist on our work at all.
A same-day number over the phone from any industrial floor coating service is a guess. A real quote needs a walk of the building, in-situ moisture probes with 24 hours of equilibration, and a look at the joints — then two to five days to write. Industrial floor coating contractors who can price a 40,000 square foot plant floor without seeing the slab are pricing an average floor, and yours will not be average in the places that cost money.
Sometimes, genuinely. If the slab is new, sound, dry and the room is a dry storage bay, a thin-film system from an efficient local industrial epoxy flooring contractor is the correct purchase and paying for 40 mil would be waste. The mistake is buying that same bid for a washdown room or a forklift aisle. Match the tier to the duty first, then take the best price the industrial floor coating contractors in that tier will give you.
Write down three things and hand the same sheet to everyone: what gets spilled on each area and at what temperature, what traffic crosses it, and which hours the area can actually be taken out of service. Those three inputs drive the entire specification, and giving every one of your industrial floor coating contractors identical information is the only way the quotes come back comparable. Our quote form asks for exactly that.
Get a bid you can hold us to
Named products, mils per coat, prep method, cure schedule, phasing and exclusions — in writing, at no cost. Take it to your other industrial floor coating contractors as a comparison document if you want. We would rather be chosen with your eyes open.
Worth reading before you sign
What It Costs
Cost per square foot by system and the seven things industrial floor coating contractors price differently.
ProcessHow We Install
Assessment, prep, build and handover — the sequence a plant floor gets, step by step.
SystemIndustrial Epoxy Flooring
The default system, what it resists, how thick it should be, and when it is wrong.