Included
any coating job
- Diamond grinding
- Crack & joint repair
- Spalling patch as needed
- Built into coating price
Surface Prep & Repair · Mahtomedi, MN · Est. 2003
Mahtomedi sits on the east shore of White Bear Lake in Washington County, with the small villages of Willernie and Birchwood tucked in beside it. It was resort country before it was a suburb, reached from St. Paul by streetcar, and the Wildwood amusement park stood at the south end of town until the 1930s. We install polyurea + polyaspartic floor coatings for Mahtomedi homeowners: diamond-ground prep, custom flake colors, 1–2 day install, written 15-year warranty. Three layers. Summer cottages from the 1900s through the 1930s along the lake and through the Old Village and Wildwood, winterized and added onto over the decades; a 1950s through 1970s ring behind them; and larger newer homes on the east side toward Highway 244 and the Dellwood line.
Surface Prep & Repair in Mahtomedi
Mahtomedi is a resort town that became a suburb, and the concrete carries both histories. Through the Old Village and Wildwood and along the east shore, houses began as summer cottages between the 1900s and the 1930s and were winterized later, so the garage is often detached, unheated, and standing on a slab poured decades after the house it serves. Those slabs vary more than anything else we work on, because there was no single era or standard behind them. Behind that band, the 1950s through 1970s ring is conventional suburban housing with attached two-car garages that grind and coat predictably, and the newer building on the east side toward Highway 244 has modern slabs. Two things tie the lake side of town together: the water table, which is high within a few blocks of White Bear Lake and makes a moisture test worth doing before any lower-level floor is quoted, and the tree cover, which keeps outdoor slabs damp and is why anti-slip aggregate goes on nearly every patio and step here.
Mahtomedi prep divides on the same line the housing does. Cottage-origin properties near the lake bring old slabs of uncertain age, multiple prior coatings, and a moisture question that has to be answered before a coating is priced. The 1950s to 1970s ring brings ordinary settlement cracking, door-line spalling and old paint. Both get a diamond grind to bare concrete, spalling repair, polyurea crack fill and a calcium chloride test before an install is quoted.
Why we don't install epoxy in Mahtomedi
Surface prep is where cheap coating installs get cheap. Acid etching takes 30 minutes with a $40 jug of muriatic acid; diamond grinding takes hours with $30,000 worth of equipment. The cost difference is why some installers acid etch, and the bond difference is why those floors peel. Here's the head-to-head:
If a coating contractor offers to "save you money on prep" by acid-etching, that's the moment to walk away. The prep is the foundation of the install; saving 30 minutes on prep guarantees a re-install in 18 months. Diamond grinding is the only surface prep we do, and it's included in every coating price.
Mahtomedi Pricing
For a coating install, prep is included in the per-sq-ft coating price: never a separate line item, never an upsell. For standalone prep work (sub-contracting to another coating contractor or repair-only jobs), pricing depends on slab condition + scope.
any coating job
any sq ft
linear ft + sq ft
Standalone prep is typically a contractor-to-contractor arrangement, but homeowners with damaged slabs sometimes commission repair-only work as a stopgap before a future coating install. Send photos + scope and Dave will quote.
The 6-step install
Same checklist on every floor. The reason our coatings still look new at year ten when the cheap stuff peeled in year two.
Mahtomedi questions
More in Mahtomedi
Whatever the slab (garage, basement, patio, mudroom, commercial) gets the same diamond-ground prep, same polyurea + polyaspartic system, same 15-year warranty. Bundle pricing if you book multiple rooms in one visit.
Surface Prep & Repair elsewhere
Same diamond-ground prep, same polyurea + polyaspartic system, same 15-year warranty across our entire service area. If you're outside {city}, here's where else we install.
Get a quote
Send four photos of your slab and we'll text back a real Mahtomedi number same-day. No salesperson, no quote-bot, no follow-up calls.