Exterior basement access

Build the opening, drainage and exterior details as one system.

A basement entrance or egress window affects the foundation, water management, grading, structure and interior finish. Opvion coordinates the scope from excavation through completion.

Separate basement entrances

Depending on the site and design, an entrance project may include excavation, a new structural opening, lintel or reinforcement details, door installation, retaining or stair assemblies, landing, guard and handrail work, drainage, waterproofing, grading and interior make-good.

The final solution must respond to the actual property. Side-yard width, foundations, utilities, setbacks, soil, groundwater, roof drainage and finished grades can all affect feasibility and cost.

Egress windows and window wells

Egress work is sized and detailed for the intended room, the proposed opening, the existing foundation and applicable project requirements. The scope may include saw-cutting, lintel or structural coordination, window installation, well, drainage, waterproofing and interior finish repairs.

Site-specific confirmation matters. Required opening sizes, clearances, drainage and permits vary with the project. Final requirements must be confirmed through the applicable design and approval process.

What affects price and schedule?

  • Foundation type and wall thickness
  • Depth of excavation
  • Access for equipment and disposal
  • Utilities and hidden conditions
  • Drainage and waterproofing approach
  • Structural design requirements
  • Stairs, landings, guards and railings
  • Permit and inspection timing

Photos that help us qualify the project

Send wide exterior views, close-ups of the proposed opening area, the interior foundation wall, grade and downspout conditions, nearby utilities or equipment, and a photo showing access from the street or driveway.

Planning an opening?

Start with the property and proposed location.

We’ll review the basic fit and tell you what information is needed for the next step.

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