I live in Western NY. Here, epoxy for a double garage runs $2500-$3000. But it’s a pretty easy do it yourself if you want to save money, although it’s hard work.

In my neck of the woods (expensive Canadian City on the West Coast), an epoxy job STARTS at $7 - $10/sf and moves up from there.

Garage floors are tricky because the slab does NOT have a vapour barrier underneath. It is an added expense to the builder for an uninhabitable space. That means the slab is sitting over DAMP earth...all the time.

Where does that dampness go? Into the garage. What happens if you coat the garage slab with a 'slap down' coat of DIY epoxy? The moisture builds up in the concrete and EVENTUALLY bursts through. That moisture, sitting on top of concrete but UNDERNEATH the epoxy = peeling.

So a proper epoxy job should include scarification (grinding or shot blasting), Sealant (moisture mitigation) and then the coat (or 2) of epoxy. If you are in a rainy or snowy area of the world, you will need to add some grit to the surface. No problem...but it is an 'up-charge'.

Just be aware of what a GOOD epoxy application LOOKS like. And then compare that to the quotes you are getting.

Agreed, it’s a big job, took 3 days - prep, dry, epoxy, then dry again before you can put everything back in. Not to mention moving everything out and back in. My 2 car garage was $2500. Looks amazing and has held up wonderfully over the last 3 years, so well worth it.

. Awesome.. looks like there's a lot more to it then I thought. You guys are the best👍

Hmmm….I didn’t know that @SJ McCarthy - good to know. All I know is my sister and brother in law did theirs themselves five years ago (I helped). It was hot sweaty work in a humid summer month, but it still looks fabulous. But perhaps the day will come when the problem you discussed occurs. Hopefully not!

@lwfromny Not everyone has the issues I describe when doing a DIY job. The type of soil the slab is sitting on, the amount of rain/moisture the soil is exposed to, the climate, and the preparation all add up to a great finish or a horrible experience. It is more common to have a bad experience with a DIY job than it is with a pro.