COLLINS & SONS ENGINEERING LTD
Contractors
SIC: 42990
Get a Free Quote
Need contractors work done? Get free quotes from verified UK contractors — no obligation.
Sponsor the Contractors category
Put your brand in front of buyers browsing this category — exclusive, one sponsor per category
Guides & resources
Inside SIC 71122: The UK's Consulting Engineers, From Giants to Sole Practices
Key findings from the Construct365 Sector Intelligence Report on SIC 71122 — engineering-related technical consulting: an £80.5bn group headline over a ~32,800-firm subclass, a barbell of global giants and micro-consultancies, fee bidding the profession itself calls a free-for-all, and the first conditional 'maybe' this series has given a pricing product.
Read guideRobotics on the Building Site: What UK Contractors Need to Know
A practical guide to where construction robotics actually stands in 2026 — the technology that works, the rules that apply, and how to deploy without getting burned.
Read guideKeep Subcontractor Compliance Under Control
Chasing insurance certificates and CIS paperwork by email doesn't scale. The new Construct365 Subcontractor Portal lets your subcontractors upload and refresh their own compliance documents — and warns everyone before anything lapses.
Read guide