About Keystone
A Pittsburgh builder you can count on
Family owned since 2009, we have grown from kitchen remodels into one of the region's trusted names in custom homes and commercial construction.
Our story
Keystone Builders started in 2009 with a single crew, a used truck, and a simple promise: do excellent work and treat people right. Word traveled fast through Greater Pittsburgh.
Today we build custom homes, additions, and commercial spaces across the region. We are bigger, but the promise has not changed. Every project still gets a dedicated project manager and the same crews who built our reputation.
We are licensed, insured, and proud to call Pittsburgh home. When you hire Keystone, you are hiring neighbors who plan to be here for the long haul.
Years building in Pittsburgh
Projects completed
On-time completion
Workmanship warranty
What we stand for
Three principles guide every decision we make on your project.
Craftsmanship
We build the way we would build for our own families. Details matter, and we do not cut corners where no one is looking.
Communication
You hear from us every week. No chasing, no guessing where your project stands.
Integrity
We give you an honest estimate and an honest timeline, then we do what we said we would do.
How we work
A clear path from first call to final walkthrough, so you always know what comes next.
01
Consultation and Estimate
We walk your site, listen to your goals, and provide a clear written estimate with no surprises.
02
Design and Planning
We refine the drawings, lock the scope, and handle permits, engineering, and material selections.
03
Build
Your dedicated project manager runs the schedule, coordinates the trades, and updates you every week.
04
Walkthrough and Warranty
We complete the punch list together and stand behind the work with a written workmanship warranty.
Licensed, insured, and accountable
The credentials behind every Keystone project.
License
PA HIC #PA088416
Insurance
General Liability and Workers Comp
Service area
Greater Pittsburgh and Allegheny County
Warranty
2 year workmanship warranty
What our clients say
The same crews, the same standards, project after project across Greater Pittsburgh.
Keystone built our home exactly the way they said they would, on the timeline they promised. The weekly updates made a huge project feel manageable.
Sarah and Mark T.
New custom home · Shadyside
Ready to build something great?
Tell us about your project and we will get you a clear, written estimate. No pressure, no obligation.