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Floor & Deck Coatings costs in Maryland
Epoxy or polyaspartic: what each costs in Maryland
These two coatings get sold as rivals and they are really a budget decision with a few technical consequences. Here is what each one costs in Maryland, side by side, and what the extra money actually buys.
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Quick answer
How much does floor & deck coatings cost in Maryland?
An epoxy floor system installed in Maryland costs $5 to $9 per square foot; a polyaspartic system costs $7 to $12. On a two-car garage of about 500 square feet that is $2,300 to $4,500 for epoxy and $3,500 to $6,000 for polyaspartic. The common compromise is an epoxy base with a polyaspartic topcoat at $7 to $12 per square foot.
The numbers
Maryland pricing, broken down.
Almost no contractor site in this market publishes a number, which is exactly why the question has so much search demand and so little honest supply. These are the ranges we price to in Maryland, with the reason each one is a range and not a price.
Typical in Maryland
Epoxy floor system, installed
$5 – $9 / sq ft
Epoxy floor system, installed
$5 – $9 per square foot
Prepared, primed, coated and sealed. The spread is almost entirely preparation — a sound new slab sits at the bottom, an old slab with oil staining and cracks sits at the top.
Polyaspartic floor system, installed
$7 – $12 per square foot
Two to three dollars a foot more than epoxy. Buys ultraviolet stability, a faster return to use, and a wider installation window in cold weather.
Two-car garage in epoxy (approx. 500 sq ft)
$2,300 – $4,500
The whole-floor number most people actually want. Assumes a standard two-car footprint with a sound slab and no coating to remove first.
Two-car garage in polyaspartic (approx. 500 sq ft)
$3,500 – $6,000
The same floor in the better system. Roughly $1,200 to $1,500 more on a typical garage, which is the real number to weigh rather than the per-foot difference.
Epoxy base with polyaspartic topcoat
$7 – $12 per square foot
The build we recommend most often. The epoxy does the bonding and the build; the polyaspartic topcoat does the wear and the ultraviolet resistance.
Full-refusal flake broadcast
$9 – $15 per square foot
Flake thrown until the floor will take no more, then ground back and sealed. It hides everything, cleans well and is what most people picture when they say garage floor coating.
Full quartz broadcast system
$9 – $16 per square foot
Quartz instead of vinyl flake, for a harder and more slip-resistant surface. The right answer in a workshop or a commercial bay rather than a domestic garage.
Removing an existing failed coating
$2 – $5 per square foot
Grinding off whatever peeled before. This line is the most common reason a coating quote comes in higher than the headline rate, and skipping it is why the previous one failed.
Cold-weather installation, polyaspartic
No surcharge
Polyaspartic will cure at temperatures where epoxy will not. Between November and March in Maryland that is the difference between doing the job and waiting for spring.
Ranges, not quotes. Published 2026 and reviewed against work we are actually pricing in Maryland. What your job costs comes from a walkthrough — access, condition, height and finish level move a price more than square footage does. Estimates are free and in writing.
The honest comparison, in one paragraph each
Epoxy is thicker, bonds superbly, builds out a slightly uneven slab and costs less. Its weaknesses are ultraviolet light, which ambers it, and cure time, which keeps you off the floor for days. On a garage that does not get direct sun and can be left alone for a week, epoxy at $5 to $9 per square foot is genuinely good value.
Polyaspartic is thinner, cures far faster, holds its colour under sunlight and goes down in temperatures where epoxy cannot. Its weaknesses are the price, at $7 to $12 per square foot, and a short working time that makes it unforgiving to install — it is less tolerant of a crew learning on your floor.
The build that gets specified most often is both: an epoxy base for bond and thickness with a polyaspartic topcoat for wear and ultraviolet resistance, at $7 to $12 per square foot. On a typical two-car garage that is the same money as straight polyaspartic and a better floor than either on its own.
Why both prices are mostly preparation
Neither of these products sticks to a dirty, sealed or wet slab. The floor has to be mechanically ground to open the surface, oil has to be drawn out rather than washed off, cracks and spalls have to be cut and filled, and the slab has to be dry at depth. That work is the same in both systems and it is where the hours go.
This is why a coating quote with no preparation line is a warning rather than a bargain. The commonest failure mode in this trade is a coating that lifts in sheets a year later, and when it does, the cause is nearly always that the slab was pressure-washed and coated rather than ground and coated.
It also means the comparison that matters is not epoxy against polyaspartic. It is a prepared floor against an unprepared one. A properly prepared epoxy floor will outlast a badly prepared polyaspartic one by years, so read the preparation on both quotes before you read the product names. Our garage floor coating cost guide covers the garage-specific version of these numbers.
Before you sign anything
What a real written quote should itemise
Ask every contractor for these in writing. Quotes only compare once they do — and Maryland law requires home improvement work over $500 to be under a written contract anyway.
- The preparation method, named — mechanical grinding, not washing or acid etching
- Whether an existing coating has to come off, and the per-square-foot rate for removing it
- Crack and spall repair as its own line, with how the filler is finished
- A moisture test on the slab, and what happens if it reads high
- The system build layer by layer — primer, base, broadcast, topcoat — with the product names
- Return-to-use times for foot traffic and for vehicles, stated as dates not as guidance
- What the warranty covers, and whether it covers adhesion or only the material
Want the number for your house?
Call and describe the job. You’ll get a straight answer on whether it’s something we do and roughly what it runs, before anyone books a visit.
(301) 524-1729
Priced by us, not a calculator
Floor, Deck & Balcony Coatings
What moves the number
Why two quotes on the same job land far apart.
Usually not because one contractor is expensive. Usually because they are pricing different work. These are the variables that actually move it.
01
The condition of the slab, not the choice of coating
Preparation is the largest variable in either system and the reason both ranges are so wide. Grinding, crack repair, oil decontamination and patching happen before any product is opened, and a floor that needs all four costs more in epoxy than a clean slab costs in polyaspartic.
02
Whether something has to come off first
A previous coating that peeled has to be ground off at $2 to $5 per square foot. On a 500 square foot garage that is $1,000 to $2,500 before the new system starts, and it is not a line anybody can skip honestly.
03
Sunlight on the floor
Epoxy ambers and chalks under ultraviolet light. In a garage with the door open all summer, or on a floor that catches direct sun through a window, that shows within a few seasons. Polyaspartic does not do it, and that is most of what the price difference buys.
04
When you need the floor back
Polyaspartic cures fast enough to walk on the same day and park on within about twenty-four hours. Epoxy typically wants three to five days before a vehicle goes back. If the garage is the only place for two cars, that gap has a value.
05
What the floor is for
A domestic garage holding cars and bikes is well served by either. A workshop with solvents, a floor that takes a jack stand, or a commercial bay with traffic is a different specification — chemical resistance and quartz instead of flake, at $7 to $16 per square foot.
On the job
What you are paying for.
Trade photography, stage by stage — the work these numbers buy. Photos of our own recent jobs come out at the walkthrough, on the actual house.
Straight answers
Floor & Deck Coatings cost questions
Not covered here? Call and ask — you’ll get a real answer, not a “depends on the job”.
Polyaspartic, by two to three dollars per square foot. A two-car garage is $2,300 to $4,500 in epoxy and $3,500 to $6,000 in polyaspartic, so the real decision is roughly $1,200 to $1,500 on a typical floor.
It is if the floor gets direct sunlight, or if you cannot give up the garage for several days. Those two things are what the premium buys. In a shaded garage you can leave alone for a week, epoxy at $5 to $9 per square foot does the same job for less.
An epoxy base coat with a polyaspartic topcoat, at $7 to $12 per square foot. The epoxy gives bond and build on a slab that is never perfectly flat; the polyaspartic takes the wear and the ultraviolet light. It costs about the same as straight polyaspartic.
Two to five dollars per square foot to grind it off, which on a 500 square foot garage is $1,000 to $2,500. It cannot be coated over. The peeling itself is usually evidence that the slab was never properly prepared the first time.
Polyaspartic can, at no surcharge, because it cures at temperatures where epoxy will not. Epoxy in an unheated Maryland garage between November and March is a risk we will not take with your floor, so in those months we will quote polyaspartic or ask you to wait.
Talk to the people doing the work
Get a straight number for the whole job.
Tell us what needs doing. We’ll walk it with you, sequence every trade it touches, put the price in writing, and leave you to decide.
Get a quote
Let’s price your project.
Two short steps. No obligation, no pressure — just a clear number and a straight answer about what the job involves.
Tick as many as you like. Most jobs are two or three of them at once, and I sort out the detail when I come and look. Nobody gets turned away for choosing the wrong box.
