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Services General Contracting
Misc Project
Misc Project The ovens at Five Generations Bakers
Post Office
Post Office Remodeled Erie Post Office
Misc Project
Misc Project Old Economy, Ambridge's historical landmark
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Our Story

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K.J. Johnston Ltd. is a family-owned Western Pennsylvania corporation that has been operating since 1978, founded by President Keith Johnston. Since its inception, K.J. Johnston has steadily increased its breadth of capabilities and service offerings. With over 50 years of combined construction industry knowledge, K.J. Johnston has become a leading general contractor involved in a variety of successful commercial and residential construction projects.

Our expertise in construction spans a wide range of industries, from institutional and industrial to retail and residential. In addition, we have also worked with many clients in specific trades, such as law offices, nonprofits, and restaurants. Our principal scope of work includes, but is not limited to, framing and carpentry, painting and finishes, office upgrades and value engineering, but also includes excavation, plumbing, electrical, and HVAC work. Please see our Services page for a more comprehensive overview of our capabilities as a contractor.

K.J. Johnston Ltd. is authorized to do business in the State of Pennsylvania as an S-Corporation, and is fully licensed and bonded. K.J. Johnston is also registered as a small business under the Commonwealth’s Small Business Procurement Initiative (SBE). As a small business, we are committed to our small business partners, please see our Suppliers & Partners tab for more information regarding our commitment.

What We Do

Products/Services Relating to General Contractors

Project Experience

Civil & Site Development
School / College / University
Hospital / Nursing Home
Hotel / Motel
Industrial Maintenance
City / Town Hall
Office Building
Church / Synagogue
Retail Store
Secure and Shielded Facilities
Storage Facility / Warehouse
Design Build
Non-Residential Building
Court House
Medical Office
Residential Building

Service Areas

Preferred Brands & Manufacturers


Associations & Memberships

Member of SBA (Small Business Administration) SBA (Small Business Administration)
Member of SBE (Small Business Enterprise) SBE (Small Business Enterprise)