Do you need a permit to coat a garage floor in Garden City?
In Garden City, grinding, crack filling and coating an existing garage floor is finish work, and finish work doesn't need a building permit. Garden City Code 7-2-3, the city's version of Section R105.2 of the International Residential Code, lists "painting, papering, tiling, carpeting, cabinets, counter tops and similar finish work" as work that needs no permit. The code doesn't name floor coatings, and a permit is still needed for things like structural repairs or new wiring or plumbing, so call Garden City Building Services at (208) 472-2921 if your project goes beyond the coating.
Checked against Garden City code in November 2026. See the rules for every Treasure Valley town.
Grinding dust and rinse water in Garden City
Garden City Code 4-3-2 says no one may discharge, dump or dispose of spills or materials other than stormwater into the storm sewer system, and section 4-14-5 makes any non-stormwater discharge to the storm drain system a violation. The city counts streets, curbs and gutters as part of that system, so grinding slurry and coating rinse water can't go down the gutter.
Getting the garage ready for us? Sweep or vacuum it out instead of hosing it into the street.
Winter roads and your garage floor
Garden City's website says the Ada County Highway District (ACHD) oversees and maintains the city's local streets, and the city itself does not build or maintain roadways. ACHD says it sprays liquid magnesium chloride on priority roads before storms so snow and ice don't bond, and spreads road salt and a salt and sand mix.
All of that rides into the garage on your tires and melts on the slab. The Federal Highway Administration says chemical deicers can make freeze and thaw damage to concrete worse, that surface scaling is the most common damage they cause on slabs, and that magnesium chloride and calcium chloride raise the most concern. A coated floor gives the melt a sealed, non porous surface to sit on instead of bare concrete, so you can squeegee it out the door.
New build in Garden City?
Polyrez, the coating system we use, says new concrete needs to cure at least 28 days before it’s coated, and the slab, the air and the material all need to be between 50°F and 80°F while it goes down. The Federal Highway Administration also recommends letting new concrete dry at least 30 days before deicers hit it. Tell us your closing date and we’ll plan the install around it.
Working near Garden City
We also coat floors in Boise, Eagle and Meridian. See every town we cover.