
Stage 01 · Build · Keystone
Built on schedule.
New construction for developers and owners who buy certainty - delivery, safety, and a crew that shows up. Led by Jeff, formerly of McCarthy Building Companies.
Focus
Multifamily
Buyer
Developers
Lead
Jeff
Background
McCarthy
For developers & owners
You are buying schedule certainty - not a roof repair.
Build Group is the newest Keystone operating company. While it ramps, crews coordinate metal work with Apex. The mandate is the same: deliver the complex, cleanly, safely, on a timeline a lender can trust.
Ground-up multifamily
New complexes from pre-construction through delivery.
Schedule discipline
Tight planning, clear communication, measurable milestones.
Safety culture
Jobsite standards shaped by large-GC experience.
Group coordination
Metal by Apex. Roofing & maintenance by FCR after delivery.
Leadership
Jeff · formerly McCarthy Building Companies
The strongest credential this page can offer a developer buyer is already on the team. Full bio and headshot publish when Jeff supplies them.
Jeff bio, headshot, and delivered-project proof - pending from Jeff
Awaiting Jeff · requested 2026-08-28
How we connect
Build Group is the ground-up construction arm of the Keystone group. Gates and railings on our projects are fabricated by Apex, a Keystone company. After delivery, FCR roofs and maintains the building; Northpointe may manage it.
Next: Apex metal →Credentials
Build Group licenses - pending from client
Awaiting Jeff / Jon · requested 2026-08-28
Build Group services - pending from Jeff
Awaiting Jeff · requested 2026-08-28
Keystone group
Part of the Keystone group
These companies share common ownership. Here is what each one does - stated as fact, not as an offer.
Metal
Apex
Gates, railings, fences, and metalwork for multifamily and commercial properties.
Open →Roof & Maintain
Fiedler Construction & Roofing
Multi-family and commercial roofing, reroofs, repairs, and reconstruction for property managers and HOAs across California.
Open →Manage
Northpointe
Property management for multifamily communities.
Open →