Yes. Grease traps, hood vents, exhaust hood structures, prep tables, and the brackets that hold them all weld up well. Grease traps and hoods are usually carbon steel and need a solid structural weld. Prep tables are stainless and need TIG for the food-contact side.
We’ve worked on most of the metal pieces in a commercial kitchen. If it’s broken, cracked, or coming apart, send us a photo through our contact page and we’ll come fix it.