Our Services in Lake Oswego
Cojo Excavation & Asphalt provides professional excavation, asphalt maintenance, and concrete services to Lake Oswego and the surrounding area.
Available Services
Asphalt Maintenance
Seal Coating
Professional seal coating services that protect your asphalt from UV rays, water damage, and chemical spills while restoring a rich, dark appearance.
Learn moreCrack Sealing
Professional crack sealing prevents water from penetrating your asphalt base, stopping potholes and structural damage before they start.
Learn moreAsphalt Paving
Complete asphalt paving services for driveways, parking lots, and roads with proper base preparation and premium hot-mix asphalt.
Learn moreParking Lot Maintenance
Comprehensive parking lot maintenance including seal coating, crack repair, patching, striping, and ADA compliance updates.
Learn moreLine Striping
Professional line striping services for parking lots, roads, and commercial properties using premium traffic paint and thermoplastic markings.
Learn moreConcrete Services
Excavation Services
Site Preparation
Complete site preparation services including clearing, grubbing, rough grading, and utility trenching to get your project started right.
Learn moreDrainage Solutions
Engineered drainage solutions including French drains, catch basins, swales, and stormwater management systems for wet Oregon properties.
Learn moreReady to Start Your Project in Lake Oswego?
Get a free estimate for your excavation, asphalt, or concrete project. We respond within 24 hours.