Poured Concrete Foundations in Western PA — Built Right, On Time.
Turnkey foundation solutions for homeowners, home builders, and general contractors. From excavation to waterproofing — one call does it all.
Prefer to call? (724) 482-5243What We Do
Full-Service Foundation & Site Work
From the first dig to the final seal, Seneca Foundations handles every phase of your foundation project with precision and care.
Poured Concrete Foundations
Cast-in-place walls, footings, and retaining walls engineered for Western PA soil and weather conditions. Residential and commercial scale.
Excavation & Site Preparation
Complete lot clearing, foundation excavation, and driveway cutting to get your site build-ready. Heavy equipment, experienced operators.
Utility Installation
Water, sewer, gas, electric, and drainage system installation coordinated with your project timeline. One crew, one schedule, zero conflicts.
Concrete Line Pumping
Precision concrete placement for hard-to-reach areas and complex pours using modern line pump equipment. Fast, accurate, efficient.
Waterproofing & Drainage
Foundation waterproofing membranes, French drains, and drainage systems to keep your basement dry. Protection that lasts decades.
Total Station Layout
GPS and laser-guided layout for pinpoint accuracy on every foundation, wall, and footing. Precision you can measure.
Our System
Built Smart™ Foundations
Why Seneca
The Built Smart™ Difference
Seneca Foundations isn't just another concrete company. Our Built Smart™ Concrete Foundations System combines Western Forms aluminum forming technology, experienced crews, and a commitment to leaving every site ready for the next trade.
We Own All Our Own Forms & Equipment
No rentals, no delays. Our Western Forms aluminum forming system delivers precision walls with a superior finish every time.
Experienced, Safety-Focused Crews
OSHA-compliant teams with years of field experience. We don't cut corners on safety or craftsmanship.
Top Quality Concrete & Materials
We spec the right mix for every application — from high-PSI structural pours to waterproofed basement walls.
We Set Up the Next Trade for Success
When we strip forms, the site is clean, square, and ready for framers. Builders and GCs love working with us because we make their job easier.
Who We Serve
Foundation Solutions for Every Project
Whether you're building your dream home, managing a subdivision, or running a commercial build, Seneca has the experience and equipment to deliver.
Homeowners
Building your dream home starts with the right foundation. We guide you through every step, from permits to pour day, so you can build with confidence.
Start Your ProjectHome Builders
Reliable scheduling, turnkey foundation packages, and a crew that leaves your site ready for framing. We keep your build on track and on budget.
Partner With UsGeneral Contractors
Commercial and residential, we handle project coordination so you don't have to. Professional documentation, clear timelines, and zero surprises.
Get a QuoteOur Work
Project Gallery
From residential basements to commercial slabs, see the quality and precision that defines every Seneca Foundations project.
Residential Foundation — Butler County
Full basement pour with steel beam supports and poured walls
Commercial Slab Pour — Western PA
Commercial concrete slab with steel bollard post anchors
Excavation & Foundation Forms — Hillside Site
Full site excavation and formed foundation on challenging terrain
Modular Home Set — Western PA
Poured foundation with crane setting modular structure
Poured Concrete Walls — Interior Detail
Clean poured concrete wall intersections and interior detail
Finished Foundation — Multi-Bay Structure
Completed concrete structure with multiple garage bay openings
Wall Pour in Progress
Foundation wall forms with pump truck ready for concrete pour
Commercial Foundation Walls
Poured concrete foundation walls for commercial project
Residential Foundation — Framing Stage
Poured foundation walls with wood framing underway above
Testimonials
What Our Clients Say
“We've been building custom homes in Butler County for over 40 years, and Seneca is the only foundation contractor we trust. Their crews show up when they say they will, the work is flawless, and they leave the site ready for the next trade. That matters when you're running multiple builds.”
Jim Harwick
Harwick Custom Homes
“Spring 2025 was brutal with rain delays. Most of our subs fell weeks behind schedule, but Seneca found every dry window and kept our foundation on track. They poured on time and the walls came out perfect. Couldn't ask for a better partner.”
Dave Kowalski
DK General Contracting
“We were nervous about our first home build, but Seneca made the foundation process so easy. They explained everything, kept us updated, and the finished product was incredible. Our builder said it was one of the cleanest foundations he's ever set a house on.”
Sarah & Mark Engel
Homeowners, Cranberry Township
“Professional, safe, and consistent. Seneca handles our commercial foundations with the same care as residential. Their Built Smart system and Western Forms equipment make a visible difference in wall quality.”
Tom Ricci
Ricci Development Group
Coverage Area
Serving Greater Pittsburgh's Northern Suburbs
Based in Harmony, PA, Seneca Foundations serves communities across Butler County, northern Allegheny County, and the surrounding region.
Don't see your town? Call us at (724) 482-5243 — we may still be able to help.
About Us
Seneca Foundations
Seneca Foundations specializes in high-quality poured concrete foundations. With a focus on precision, durability, and reliability, we provide strong foundations that stand the test of time. We take pride in being a leading provider in our area, delivering dependable workmanship for residential and commercial projects alike.
From new construction to custom foundation work, every project is completed with attention to detail and a commitment to doing the job right the first time.
At Seneca Foundations, we believe a solid structure starts with a solid foundation. Our experience, craftsmanship, and dedication to customer satisfaction set us apart.
Ready to Start Your Project?
Get a Free Estimate Today
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