| Business | Phone |
| A R Jeffery Construction Ltd 1050 Simcoe St N #100, Oshawa L1G 4W5 | (905) 576-5711 |
| Jarratt Contracting 217 Oshawa Blvd N, Oshawa L1G 5S8 | (905) 433-7695 |
| Jeffery Homes 1200 Airport Blvd #201, Oshawa L1H 7K4 | (905) 433-4701 |
| Jeffrey Homes Forest Lea 57 Stagemaster Cres, Oshawa | (905) 433-2173 |
| Kaitlin Group Ltd 249 Toronto Ave, Oshawa L1H 3C2 | (905) 723-7399 |
| Kirby Structures Ltd 1260 Terwillegar Ave #2, Oshawa L1J 7A5 | (905) 723-2223 |
| Ledcor Industries Ltd 419 King St W, Oshawa L1J 2K5 | (905) 434-5439 |
| Michael Zygocki Ltd 378 King St W, Oshawa L1J 2J9 | (905) 728-9471 |
| Norwood Construction Po Box 31089 Rpo Kingsway Vill, Oshawa L1H 8N9 | (905) 434-5837 |
| Redwood Construction 3835 Ritson Rd N, Oshawa L1H 7K4 | (905) 655-1052 |
| Sanco Builders 1220 Olive Ave, Oshawa L1H 8R8 | (905) 579-6700 |
| Schleiss Construction 921 Swiss Hts, Oshawa L1K 2A7 | (905) 725-7227 |
| Stair Factory 1230 Violet Hall Rd, Oshawa L1K 2H6 | (905) 728-0697 |
| Strahl Construction Ltd 190 Samac Crt, Oshawa L1G 7V9 | (905) 435-0450 |
| Taylor Made Construction 986 King St E, Oshawa L1H 1H2 | (905) 728-7724 |
| Twin Diamond Construction 469 King St E, Oshawa L1H 1E7 | (905) 438-0800 |
| Valiant Property Management 340 Marland Ave, Oshawa L1J 1X6 | (905) 576-6956 |
| Vintage Homes 344 Gothic Crt, Oshawa L1G 7J2 | (905) 571-4455 |
| Wallis & Co 318 Burk St, Oshawa L1J 4C6 | (905) 725-7107 |
| City Homes 1333 Boundary Rd #4, Oshawa L1J 6Z7 | (905) 723-2815 |
| Dagmar Construction 500 Taunton Rd W, Oshawa L1H 7K4 | (905) 721-8565 |
| Devecseri Construction Ltd 977 Swiss Hts, Oshawa L1K 2M2 | (905) 434-7271 |
| Diamond Contracting 1333 Thornton Rd S #4, Oshawa L1J 8M8 | (905) 576-7629 |
| Druham Homes 200 Bond St W #1, Oshawa L1J 2L7 | (905) 576-8805 |
| Durham Homes Townline & Andoveramp;, Oshawa | (905) 433-1844 |
| Durham Home Improvements 281 Oshawa Blvd N, Oshawa L1G 5T2 | (905) 721-8800 |
| Finefield Homes Ltd 560 Blackwood Blvd, Oshawa L1K 2N6 | (905) 728-8038 |