Serving the Greater Delaware Valley, Wayne, Norristown, King of Prussia

Tri-State Cellar Doors Recognized with 2025 STAR Award and “Project of the Year” by the Basement Health Association

These recognitions highlight the level of craftsmanship, structural expertise, and customer-focused service that guide every cellar door installation, foundation improvement, and concrete project completed by our team. For more than sixty years, Tri-State has been trusted throughout Pennsylvania, New Jersey, Delaware, and Maryland for solutions that stand the test of time.

Built on Craftsmanship and Structural Expertise

At Tri-State Cellar Doors, exceptional work starts long before we pour concrete or install a door. We take the time to understand how each structure was built, how it has aged, and what it needs to remain safe and stable over the long term.

Whether we’re replacing an aging cellar door or reinforcing a compromised foundation, our team applies the same level of detail, preparation, and commitment to long-term performance. Our concrete services include:

Every project is completed by experienced professionals who take pride in creating safe, seamless, and lasting solutions designed to fit the unique needs of each property.

2025 Project of the Year: Restoring a 140-Year-Old Home’s Foundation

Our team earned the BHA’s 2025 “Project of the Year” Award for a full foundation reconstruction on a 140-year-old home in Haverford, Pennsylvania — one of the most complex and rewarding projects we’ve taken on.

The homeowners hoped to preserve their historic home while increasing the basement ceiling height from six feet to nine feet. After evaluating the property, our team identified significant structural deterioration in the original stone foundation. Reusing it safely wasn’t an option.

Working closely with a trusted house-raising partner, we lifted the home approximately six feet to allow full excavation and replacement of the failing foundation. The project included:

Once complete, the home was carefully lowered onto its new, structurally sound foundation — a foundation designed not only to preserve the property’s history but to support its future.

Why the BHA Selected This Project

The Basement Health Association recognizes projects that demonstrate advanced craftsmanship, exceptional safety practices, and creative solutions. This Haverford project stood out because it combined historical preservation with modern engineering, allowing the homeowners to maintain the character of their property while dramatically improving its structural integrity and livability.

For us, the project represents what Tri-State stands for: problem-solving, thoughtful planning, and treating every home with the respect it deserves.

Our Full Range of Products & Services

Although our concrete and foundation capabilities continue to grow, high-quality cellar doors remain at the core of what we do. Tri-State Cellar Doors offers a full suite of products and services to meet the needs of homeowners and contractors throughout the region.

Custom Steel Cellar Doors

Every door is crafted from durable, American-made steel and built to fit the exact opening. We create both standard and fully custom configurations designed for weather protection, security, and easy access.

Basement Egress Entrances

We design and install complete basement egress systems — including stair units, doorways, and code-compliant access solutions that add safety, functionality, and value to a home.

Egress Windows & Window Wells

Our egress window installations allow more light and ventilation into basement spaces while meeting local safety requirements. Custom-fit well covers help protect windows and keep debris out.

Diamond Plate & Sidewalk Doors

For commercial, municipal, and urban applications, we install heavy-duty diamond plate and sidewalk doors engineered for durability and frequent use.

Concrete & Hardscaping Services

We handle the surrounding concrete work that ensures an entrance or stairway functions properly — from new concrete steps and walkways to fully rebuilt basement entrances and pads.

By managing both the steelwork and the concrete as a unified project, we deliver cleaner installations, stronger structures, and an end result that looks as good as it performs.

A Continuing Tradition of Quality

From our roots as a small family-owned shop to our position today as a trusted leader in cellar doors, egress entrances, and foundation restoration, our approach has stayed consistent: do the work right, communicate honestly, and build solutions that last.

We’re grateful to the Basement Health Association for these 2025 honors and to the homeowners and contractors who trust our team year after year.

If you’d like to learn more about our cellar doors, egress solutions, or foundation services, contact us for a consultation — we’d be happy to help.