150 sq ft
small covered patio or porch
From
$1,200
to $1,500
- Polyaspartic decorative flake
- Anti-slip aggregate
- Spalling repair if needed
- Done in 1 day
Patios & Porches · Stillwater, MN · Est. 2003
Patios & Porches in Stillwater, Minnesota.
Stillwater is a historic St. Croix River town, often called the 'Birthplace of Minnesota,' directly across the river from Hudson WI. About 40 minutes northwest of River Falls. We install polyurea + polyaspartic floor coatings for Stillwater homeowners — diamond-ground prep, custom flake colors, 1–2 day install, written 15-year warranty. Heavy concentration of historic homes — Victorian, Greek Revival, Italianate — particularly downtown and on North Hill. Newer subdivisions like Liberty on the Lake and Stillwater Crossing have post-1990 slabs.
Patios & Porches in Stillwater
What an install looks like in Stillwater.
Stillwater installs are different from any other city we serve because of the historic housing stock. Many homes in downtown Stillwater and on North Hill have slabs from the late 1800s or early 1900s — original poured concrete with significant settlement, surface damage, and often previous coatings (sometimes multiple, applied over decades). We've done installs in homes built in the 1880s. The diamond-ground prep handles all of it: removes old coatings, opens the substrate, and gives polyurea a clean bond surface. Newer Stillwater subdivisions like Liberty on the Lake and Stillwater Crossing have modern slabs that grind cleanly and finish faster. Lower-level slab moisture is a more common consideration in Stillwater than in inland towns because of the river — we test before coating any below-grade install.
Neighborhoods we work in
- Downtown (historic)
- Liberty on the Lake
- Croixwood
- North Hill
- South Hill
- Stillwater Crossing
20+
Years installing
Exterior coatings since 2003
1DAY
Typical install
Walk in 24h
LifeTIME
UV warranty
Won't yellow, ever
5.0★
Google rating
From real homeowners
Why we don't install epoxy in Stillwater
Why acrylic sealers and epoxy fail outside — and what we install instead.
Most "concrete patio sealer" products at the box store are clear acrylics. They wear off in 12-24 months and offer minimal protection in the meantime. Epoxy is worse — yellows in sunlight within a year, then cracks the first winter. Both products fail on the basic problem: Wisconsin's freeze-thaw cycles demand flexibility and direct UV exposure demands UV-stable chemistry. Polyaspartic delivers both.
Acrylic Sealer / Box-Store Epoxy
What you'll find at the home center
- Acrylic sealers wear off in 12-24 months. Foot traffic, freeze-thaw, and UV exposure break down acrylic surface coatings fast. You're back at the home center every spring re-applying.
- Epoxy yellows within a summer. Direct sunlight on epoxy turns it amber within months. By the second summer the floor looks chalked and aged.
- Both crack across freeze-thaw. Wisconsin slabs expand and contract violently through winter. Rigid coatings fracture along the joints, then water gets under them, then the coating peels.
- No real slip resistance. Smooth acrylic and epoxy get dangerously slick when wet. People fall on coated patios in rain, especially on stairs and stoops.
- Salt and ice melt eat the bond. Calcium chloride and rock salt are aggressive on cheap coatings. The bond fails at the slab interface and the coating lifts.
Polyaspartic Exterior System
What we install
- Lasts 15+ years outside. Polyaspartic is the same chemistry used on industrial bridges and parking decks. It's engineered for outdoor permanence, not seasonal touch-up.
- UV-stable to the molecule. Polyaspartic doesn't yellow, ever. The UV-resistance isn't a top-coat additive — it's the resin itself. Lifetime no-yellow warranty.
- Flexible. Moves with freeze-thaw. Polyaspartic is approximately 100% more flexible than epoxy. Wisconsin slabs move; the coating moves with them.
- Anti-slip aggregate standard. Every exterior install includes a slip-resistant aggregate broadcast in the topcoat. Texture level is dialed to the application — aggressive for stairs, smoother for covered patios where bare-foot comfort matters.
- Salt + ice melt resistant. Polyaspartic handles the chemicals Wisconsin winters throw at it. We've installed exterior coatings since 2003; the warranty exists because the failure mode genuinely doesn't happen.
If you've been pricing "concrete patio sealers" or "patio epoxy," polyaspartic is the upgrade those terms should resolve to. Higher upfront cost than acrylic ($8-10 / sq ft vs $0.50-1.00 / sq ft for sealer), dramatically longer lifespan, and you're not back at the home center every spring.
Stillwater Pricing
Patios & Porches cost in Stillwater, MN: $7–9 per sq ft.
Pricing is upfront. Every number includes diamond-ground prep, polyaspartic system, anti-slip aggregate, your color choice, and the lifetime no-yellow warranty. Exterior installs price slightly higher than interior because polyaspartic resin costs more than polyurea + the prep work has to handle weather damage on the slab.
250 sq ft
typical patio
From
$2,000
to $2,500
- Polyaspartic decorative flake
- Anti-slip aggregate
- Crack & joint repair
- Done in 1 day
400+ sq ft
large patio or wraparound
From
$3,200
to $4,400
- Quartz system for direct weather
- Maximum slip resistance
- Phased install possible
- Done in 1-2 days
Stoops, steps, and walkways often combine with a patio job for bundled pricing — equipment is already on-site, so adding ~50-100 sq ft of stairs or path runs $400-800 instead of standalone pricing. Send four photos and Dave will text back a real number same-day.
The 6-step install
How we install your floor in Stillwater.
Same checklist on every floor. The reason our coatings still look new at year ten when the cheap stuff peeled in year two.
-
01
Diamond grinding
Industrial diamond-tooled grinders open the concrete pores and remove old sealers, paint, and weather-damaged surface layer. Concrete that's been exposed to weather for years has a weakened top — grinding removes it down to sound substrate. -
02
Crack repair + spalling patch
Cracks get filled with flexible polyurea joint filler. Spalled areas (where the surface has flaked off in chunks) get rebuilt with polymer-modified concrete repair compound. Soft or unsound areas are addressed before any coating goes down. -
03
Polyaspartic basecoat
Full polyaspartic basecoat, not polyurea-base. Polyaspartic is UV-stable from the resin up — there's no risk of substrate yellowing showing through the topcoat over time. -
04
Anti-slip aggregate broadcast
Kiln-dried silica sand or decorative flake is broadcast into the wet basecoat. Density and aggressiveness dialed to the application — heavier for stairs, lighter for covered patios where bare-foot comfort matters. -
05
Polyaspartic UV topcoat
Final UV-stable polyaspartic topcoat seals the system. This is the layer that delivers the lifetime no-yellow warranty + handles direct sunlight, rain, snow, and salt without degradation. -
06
Written 15-year + lifetime UV warranty
15-year written warranty against chip, crack, and peel under normal exterior use. Lifetime warranty against UV fading on the topcoat. The exterior warranty document is handed to you at install completion.
Stillwater questions
Common questions for Stillwater homeowners.
Can you coat the slab in a 100-year-old historic Stillwater home?
Yes — and we've done a lot of them. Historic slabs need more prep (multiple coatings to remove, more crack repair, more spalling patch) but the diamond-ground process handles whatever's there. The finished polyurea floor looks brand new and bonds reliably even to century-old concrete that's been through a lot.
Are river-adjacent slabs in Stillwater more prone to moisture issues?
Slightly yes — proximity to the St. Croix raises lower-level slab humidity in some Stillwater homes. We run an MVER moisture test on every below-grade install in Stillwater to confirm the slab is dry enough for a standard polyurea system, or whether it needs a moisture-mitigation primer underneath. Either way you know up-front.
How fast can you do a Stillwater install?
Typically 2-3 weeks out from quote. We batch Stillwater jobs with other east-metro installs (Hudson, Lake Elmo, Oakdale) to keep travel efficient. Older slab prep work adds time per install — typical Stillwater historic-home jobs run 1.5-2 days vs 1 day for newer suburban builds.
Is polyaspartic better than acrylic sealer for a concrete patio?
Yes, by 10-15× the lifespan. Acrylic sealers wear off in 12-24 months and offer minimal protection. Polyaspartic lasts 15+ years, doesn't yellow, doesn't peel, doesn't need re-application. The math: 5 acrylic re-seals over 15 years (DIY ~$200 each + labor) vs. one polyaspartic install ($2,000-2,500 for a typical 250 sq ft patio) that's done. The professional install is competitive on lifecycle cost and dramatically better-looking the entire time.
How much does a concrete patio coating cost in Wisconsin?
Polyaspartic patio coatings in River Falls, WI run $8-10 per square foot fully installed. A typical 250 sq ft patio is $2,000-2,500 all-in. Larger patios (400+ sq ft) come in at $3,200-4,400. Bundling stoops or walkways with a patio job runs ~$400-800 less than standalone because the equipment is already on-site.
Will the patio coating crack through Wisconsin winters?
Polyaspartic is engineered for slab movement and freeze-thaw. The basecoat is roughly 100% more flexible than epoxy and moves with the concrete through temperature swings. We've installed exterior coatings across western Wisconsin and the east Twin Cities since 2003 — the cracking failure mode genuinely doesn't happen on a properly prepped polyaspartic install.
Will it yellow in the sun?
No. Polyaspartic is UV-stable to the molecular level — the chemistry doesn't yellow, ever. We back this with a separate lifetime warranty against UV fading. Epoxy yellows within a summer; polyaspartic does not.
Is the patio surface slip-resistant when wet?
Yes. Every exterior install includes anti-slip aggregate broadcast into the topcoat. Texture level is calibrated to the use case — aggressive for stairs and stoops (where wet feet must not slip), smoother for covered patios where bare-foot comfort matters. We discuss the texture preference at the on-site quote.
When is the best time to coat a patio in Wisconsin?
Spring (April-June) and fall (September-October). The slab needs to be dry and the air temperature between roughly 50°F and 85°F for proper cure. Summer humidity slows it; winter is too cold. Exterior season is short in Wisconsin so book 4-6 weeks ahead during peak months.
Can you coat over an old, peeling concrete sealer?
Yes — diamond grinding removes most old sealers, paints, and previous coatings cleanly. Anything that doesn't come off with grinding gets addressed before the new system goes down. By the time the polyaspartic basecoat is rolled on, the slab is clean substrate.
What about spalled or chipped concrete — can you still coat it?
In most cases, yes. Spalled areas get rebuilt with polymer-modified concrete repair compound during prep, then the coating goes over a smooth surface. The exception: slabs that are structurally compromised (significant frost heave, deep spalling, foundation issues) should be replaced, not coated. Dave will tell you straight if your slab needs replacement instead of restoration.
What's covered under the warranty for an exterior coating?
15-year written warranty against chip, crack, and peel under normal exterior use. Lifetime warranty against UV fading. Exclusions: damage from abuse (vehicle parking, dropped weights, etc.), neglect, or improper chemical exposure. The warranty document is real — handed to you at install completion.
Can you coat a wraparound porch or wood-and-concrete combo?
We coat the concrete portions only. If your porch is mixed wood deck + concrete, we coat the concrete and you handle the wood with a deck stain or coating separately. We can quote both portions at the on-site visit and recommend a wood finish that complements the concrete coating color.
More in Stillwater
All the floor coatings we install in Stillwater, MN.
Whatever the slab — garage, basement, patio, mudroom, commercial — same diamond-ground prep, same polyurea + polyaspartic system, same 15-year warranty. Bundle pricing if you book multiple rooms in one visit.
Talk to Dave
Ready for a patios & porches install in Stillwater?
Send Dave four photos of your slab — he'll text back a real Stillwater number same-day. No salesperson, no quote-bot, no follow-up calls.
- Free on-site measurement in Stillwater
- Written 15-year warranty
- No subcontractors, no upsells