A Shoreline garage mid-remodel with cracks running wall to wall. Every crack filled, then coated in Ash Enviroflake polyurea in December 2024.
When we first walked this Shoreline garage, the walls were open studs and the car was still parked inside. The homeowner was in the middle of a full garage remodel: new drywall, new windows, new everything. The slab was the last piece, and it was the roughest. Long cracks ran across the floor, and there were stains from years of cars.
By December 2024 the room had white walls, a row of windows and a bright new garage floor coating in Shoreline: Certified Penntek polyurea in Ash Enviroflake, laid over a slab with every crack filled.
The free consultation was in October 2024. Moisture readings on the slab came in at 2.7% and 4.4%. The bigger story was the cracks. Several ran wall to wall, branching as they went, the kind that show up as a slab settles over decades. The perimeter was a board-formed concrete stem wall, rough and stained along the base.
With the room being rebuilt, the floor work was timed around the other trades. The crew came in after the drywall went up and sealed off the open garage door with plastic.
This was not a one-day job. Prep and crack repair came first, in late November, and the color coats followed in early December.
The before-and-after is striking. The cracks that looked like a road map are gone from view. You can see how the steps fit together on our installation process page.
Ash Enviroflake is a pale grey with white and charcoal chips. With white walls and windows on three sides, it keeps the whole room light and clean. It also contrasts nicely with the rough, weathered concrete stem wall, which was left as a feature.
A light floor in a big room shows off the space. The flake still hides dust and the grit of everyday use.
Filling cracks is only half the answer. The other half is what goes on top. A rigid coating like typical epoxy cannot stretch, so if the slab moves even slightly, the crack can return as a line in the floor. People search for an epoxy garage floor. What we install is Certified Penntek polyurea, with a basecoat that flexes and moves with the slab through freeze-thaw.
The bond is chemical, over 1,300 PSI, using a silane adhesion promoter. Before the coating comes up, the concrete will come up. Penntek floors are built for 30–40 years, and our post on how long garage coatings last in the Pacific Northwest explains why that is realistic here. Every floor carries a limited lifetime warranty backed by Penntek.
Shoreline sits just north of Seattle, with plenty of older homes, and a garage remodel is one way to get more out of one. If you are renovating, plan the floor near the end, after framing, drywall and paint, so nothing gets dropped on a fresh coating. If you are planning work on your home, the City of Shoreline site is the place to check permit needs first.
Read more about our garage floor coatings in Shoreline, or see a rust-stained Shoreline garage also finished in Ash.
Near the end. Once framing, drywall and paint are done, the floor goes down last so it stays clean and undamaged. We can schedule the work around your other contractors.
Yes. Cracks are cleaned out and filled with Penntek Mender, then ground flush. The flexible polyurea basecoat goes over the top so the repair stays hidden.
Yes. We grind and coat right up to the base of the wall for a clean edge. The wall itself can be left as is, as it was here, or coated to match.
Remodeling your garage? Book a free in-home quote or call 425-226-6085. Nicole will help you fit the floor into your project timeline.
Here's just a few of our previous projects.
