D.G. Biddle & Associates Limited
- Question
3 of these companies are based in Oshawa; the others serve Oshawa from towns including Whitby (8 km), Pickering (20 km) and Bowmanville (13 km).
2 open 24/7 · 8 open weekends · 18 rated 4.5+ · 1 shows a licence
Data verified October 18, 2026
Listed for property owners in and around Oshawa, ON, these 24 companies do engineering work for properties. Listings show the disciplines each firm names on its own website, from structural to municipal site work and environmental assessment, with ratings and quotes from public reviews.

21 of the 24 companies on this page have a rating, from 4.0 to 5.0 across 196 reviews; 18 are rated 4.5 or higher. 2 are open around the clock; 8 are open on Saturdays and 3 on Sundays. 1 shows a licence on its website. Domain records put 11 websites of the companies on this page at ten or more years old; the oldest dates from 1998. 2 offer emergency call-outs and 1 gives free estimates. We have a website on file for 22 of the companies on this page; 22 publish a contact page; 17 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Websites are listed for 22 of the 24 firms on this page. Look at project types. A practice geared to municipal infrastructure or industrial plants may not want a beam job, while a small residential structural firm will turn it round faster and cheaper. Say the scope plainly on the first call.