Since 1979, TDL has been providing expert condition assessment services and recommending the most effective repair and maintenance solutions for critical building performance issues and problems. Our expertise includes:

Building Structures
Roofing & Waterproofing
Façades & Balconies
Parking Garages
Windows & Curtain Walls
Historic Buildings
Concrete Construction
Masonry & Stone Construction
Wood Construction
Post-Tensioned Concrete Construction
Building Demolition
Building Code Compliance
Construction Cost Estimating
Due Diligence
Reserve Studies
Retaining Walls
Property Condition Assessments



photo of buildings
301 North Fairfax Street, Suite 108    Alexandria, VA 22314    703.548.3403