
Locally owned since 1978. Broomfield based.
BK Builders is Bob Knox, his crew and their own equipment. Excavation, site prep and concrete for builders and property owners across the north Denver metro.
Locally owned, start to finish
When you call BK Builders you talk to Bob. He walks the site and gives you the price. His crew does the work. No sales team, no handing your job to a crew you've never met.
We focus on the ground work that has to happen before a building goes up: utility trenches, building pads, foundation digs, backfill, grading and the concrete on top. Doing all of it with one crew keeps projects moving and keeps responsibility in one place.
What you can expect
- Straight answers and a clear bid
- Our own equipment, so we're not waiting on rentals
- Locates called before we dig
- A clean site ready for the next trade
- Communication when the ground throws a surprise
Where we work
We're based in Broomfield, Colorado and work across the north and east Denver metro, from Longmont and Arvada out to Commerce City, Bennett and Keenesburg. See the full service area.

Straight answers. Clear bids.
Send the project
Use the form or call. Share the address, what you're building and your timing.
We call you back
Bob handles every bid himself, so you get straight answers from someone who knows the work.
Site walk & bid
We look at the ground, access and utilities, then give you a clear price.
Build-ready ground
We dig, prep, grade and pour so your project can start on schedule.
Get your site build-ready.
Send the project details and we’ll follow up to talk through the site, usually the same day.