| Business | Phone |
| Coast Building Products 1920 Mark Ct # 100, Concord 94520 | (925) 671-8111 |
| Contra Costa Door 145 Mason Cir, Concord 94520 | (925) 755-0988 |
| Contra Costa Door Co 145 Mason Circle, Concord 94520 | (510) 233-9133 |
| A A Garage Doors 4425 Treat Blvd # 341, Concord 94521 | (925) 686-8996 |
| Bay Area Garage Doors 4020 Hope Ave, Concord 94521 | (925) 798-3280 |
| Contra Costa Door Co 145 Mason Cir, Concord 94520 | (925) 671-7888 |
| Garage Door & Fireplace Center Concord 94520 | (925) 676-4179 |
| Mr Garage Door Concord 94520 | (925) 246-9303 |
| R & S Erection Of Concord 1925 Arnold Industrial Way, Concord 94520 | (925) 671-7606 |