The Daily Dig
Illinois-based Richards Building Supply Co. has acquired the assets of United States Building Supply, a Colorado distributor of siding, windows, gutters, and complementary products. The deal adds four locations to the RBS network: Colorado Springs, two Denver branches, and one in Loveland. RBS plans to invest in all four sites with expanded product and service offerings for contractors and enhanced benefits for employees.
USBS has been family-owned since 1992. Owner Dewey Lane is staying on post-acquisition, something RBS CEO and president Ronald M. Guzior highlighted directly. Both sides pointed to shared family business values as central to getting the deal done. Lane said he could not imagine a better company to take USBS to the next level for customers and team members alike.
The acquisition brings RBS to four of the five U.S. markets it tracks and deepens its presence in the West. Guzior also signaled a return to the South market as a future growth target. Richards currently operates more than 60 branches across 16 states, serving professional contractors, builders, remodelers, and restoration companies with a catalog that spans roofing, siding, windows, doors, decking, cabinets, and more.
Snapshot:
Acquirer: Richards Building Supply Co. (RBS)
Acquirer HQ: Homer Glen, Illinois
RBS Founded: 1978
Acquired Company: United States Building Supply (USBS)
USBS HQ: Denver, Colorado
USBS Founded: 1992
USBS Owner (Retained): Dewey Lane
Transaction Type: Asset acquisition
Locations Added: 4 (Colorado Springs, Denver x2, Loveland)
Product Focus: Siding, windows, gutters, complementary exterior products
RBS Total Branches: 60+
RBS States Served: 16
U.S. Markets Now Active: 4 of 5
Announced: May 20, 2026
RBS CEO/President: Ronald M. Guzior
TheJobWalk Thoughts
USBS operated as a focused exterior products house. RBS carries a significantly broader catalog, roofing, doors, cabinets, decking, and more on top of the siding and windows core. For Colorado contractors currently sourcing those additional categories elsewhere, that changes the conversation with their distributor rep pretty quickly.
Dewey Lane staying on matters more than it might appear. Regional distributors run on relationships, and those relationships live with the people, not the ownership structure. His continued involvement means the contractor base USBS built over 34 years doesn't have to rebuild trust from scratch with a new face.
RBS has now stated publicly it intends to return to the South market. For suppliers currently in the RBS network, that is the expansion window worth watching. Getting positioned ahead of that move, before new branch relationships form, is where the real opportunity sits.
