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24 companies listed · 14 in Frederick · 4 open weekends · 16 rated 4.5+ · 1 shows a license
Data verified October 21, 2026
Listed for property owners in and around Frederick, MD, these 24 companies do engineering work for properties. Listings show the disciplines each firm names on its own website, from structural to civil site work and environmental assessment, with ratings and quotes from public reviews.
14 of the 24 companies we list are based in Frederick; the other 10 serve Frederick from Hagerstown (22 mi), Gaithersburg (23 mi) and Mt Airy (14 mi). 20 of the companies on this page have a rating, from 4.0 to 5.0 across 80 reviews; 16 are rated 4.5 or higher. 4 are open on Saturdays and 3 on Sundays. 1 shows a license on its website; 1 lists staff certifications (LEED) and 2 have a BBB rating of A or A+. Domain records put 21 websites of the companies on this page at ten or more years old; the oldest dates from 1997. 2 give free estimates. We have a website on file for all 24 of the companies on this page; 21 publish a contact page and 12 list a public email. 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 all 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.
