A Texas construction firm built on sixteen years of field experience.
ApexBuildOS is the public brand of Square Business Residential Remodel Corporation — a Texas-incorporated firm with deep roots in residential construction and a clear pivot toward federal subcontracting and disaster recovery work.
The business
Square Business Residential Remodel Corporation was incorporated in Texas in February 2025. We operate publicly as ApexBuildOS (DBA). Our federal identification number (EIN) is 86-2495464.
The team behind the firm has sixteen-plus years of residential construction experience — estimating, project management, trades coordination, and field supervision. We work where the work is: starter-home rehabs in Lubbock, kitchen and bath remodels for homeowners across Texas, and subcontracted residential scopes under federal programs.
What we do
Three practices, one accountable team. See the Services page for detail.
- Residential rehabilitation & remodeling — for homeowners, investors, and program-eligible residents.
- Federal subcontracting — capacity for HUD, CDBG-DR, and Texas GLO residential programs.
- Disaster recovery construction — rapid mobilization on storm-, flood-, and fire-damaged residential structures.
Where we work
Texas — primarily. We mobilize anywhere in the state for federally funded residential scopes; homeowner scopes typically run within driving distance of our home base in West Texas.
Get in touch
For federal subcontracting inquiries, homeowner project quotes, or disaster recovery mobilization, please use the contact form. We respond within one business day.
Have a scope, a site, or a community to rebuild?
Federal primes, homeowners, and disaster-recovery program managers — one inbox, one team, one phone number. We respond within one business day.