Service illustration · not a completed customer projectTHE WORK, EXPLAINED
Start with the condition.
Understand the scope.
Full-frame replacement removes the existing window frame and sash so the opening can be assessed. Agree on the removal extent, selected installation system, water-management details and finishing responsibilities before work begins. Ask how newly exposed damage would be documented and how any additional repair would be agreed. The method and scope depend on the opening and surrounding construction; this page does not establish that your property needs full-frame work.
What may be involved
- complete window unit
- sill pan
- flashing membrane
- shims
- low-expansion insulation
- sealant
- interior and exterior trim
Ask the provider to distinguish existing parts to inspect, proposed replacements, and tools, materials or reports included in the service. Confirm the work and exclusions after assessment; this list does not mean that every item will be supplied or replaced.
LOCAL RESEARCH / Portola Valley
Local context
California licenses contractors by classification, and the Contractors State License Board publishes the current list. Glazing work sits under C-17 Glazing Contractor, so it is reasonable to ask which classification a licence carries and to check the licence number with the board before glass or window work is arranged. The classification list describes the trades the state recognises; it is not a record of any particular company's licence, standing or suitability for your project.
Source ↗Planning your work
In San Mateo County's incorporated cities the building department for the city that covers the address is the permitting authority, not the county. The Contractors State License Board's consumer page on building permits states the California Building Standards Code position that work may not be erected, altered, repaired or demolished without a permit first obtained from the building official, notes that code requirements vary between cities and counties, and asks readers to check with their local building department. Confirm the scope with that department before work is arranged.
Source ↗Area-wide context does not establish the condition of your property or equipment.
Before the visit
Identify the affected opening and describe the symptom. Gather available product labels and previous work records. Explain access restrictions and keep the opening clear.
