Do you need a permit to coat a garage floor in Star?
Grinding, crack filling and coating an existing garage floor in Star is covered as finish work, which doesn't need a building permit. Star adopts the International Residential Code as adopted by the State of Idaho (Star City Code 7-1-5), and its Section R105.2 exempts painting, tiling, carpeting and similar finish work from permits. Floor coating isn't on the Star Building Department's list of projects that need a permit, and the city's FAQ says no building permit is required for a concrete slab of any size. To confirm for your project, call the Star Building Department at (208) 286-7247 ext. 9011.
Checked against Star code in November 2026. See the rules for every Treasure Valley town.
Grinding dust and rinse water in Star
Star's development code says drainage and stormwater from private property has to stay on that property unless the city and whoever receives the water approve it in writing (Star City Code 8-4A-9). The easy way to stay clear of it is to keep rinse water and grinding slurry on your own property instead of letting it run into the street.
Getting the garage ready for us? Sweep or vacuum it out instead of hosing it into the street.
Quiet hours in Star
Star only allows construction work and loud construction equipment between 7 a.m. and 10 p.m. (Star City Code 3-2-4), and breaking that rule can lead to a stop work order. The code says daily, so weekends follow the same hours.
Winter roads and your garage floor
In Star, the Ada County Highway District maintains public streets on the Ada County side, Highway District 4 handles the Canyon County side, and the Idaho Transportation Department runs Highways 44, 16 and 20/26. 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 Star?
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 Star
We also coat floors in Eagle, Middleton and Meridian. See every town we cover.