Foundation opening
Use the existing opening, enlarge it, or cut a new one in the foundation wall.
Explore foundation openingGet a quote for thisBasement projects · Spokane, WA
Adding a basement bedroom or enlarging a small window? Plan the opening, window well and drainage with our free guides, then send your details and we will look for a suitable local installer.
Get a Spokane egress window quoteShare your project with us to explore a suitable local provider connection.

Tell us about your basement and ZIP code. We will look for a local installer who can quote the opening, window well and drainage.
Use the existing opening, enlarge it, or cut a new one in the foundation wall.
Explore foundation openingGet a quote for thisAt least 9 sq ft, with room to open the window fully and climb out.
Explore window wellGet a quote for thisAsk where water entering the well will go before it is backfilled.
Explore drainage pathGet a quote for thisInsulation, trim, drywall and paint: agree who finishes what.
Explore interior finishingGet a quote for thisUnder the 2021 International Residential Code with Washington amendments, the open window needs at least 5.7 sq ft of net clear opening (grade-floor openings may be 5.0 sq ft), 24 in of clear height, 20 in of clear width, and a sill no higher than 44 in above the floor. Meeting the 20 in and 24 in minimums at the same time still isn't enough to reach 5.7 sq ft, so check the manufacturer's clear-opening figure.
Read the full requirements guide Compare casement and sliding windowsA deck, patio, narrow side yard, downspout or buried utility line can change how the well is dug and drained. Point these out at the site visit so digging, drainage and yard repairs are written into the estimate, not discovered later.
Plan the window well and drainage
New bedroom, more daylight, or a small window to enlarge? Approximate answers are fine.
Mention a deck, paving, tight access or water collecting near the wall.
Share your city, ZIP and timing. We review each enquiry and, if a suitable local provider is available, arrange an introduction. We do not install windows ourselves.
Reviewed 2026-10-14
A complete installation usually covers the foundation opening (cut or enlarged), excavation, the window well and any required ladder, a drainage plan, the window itself, sealing and insulation, interior trim, yard restoration and permit handling. Ask each installer which of these their estimate includes.
Get written estimates from installers who do the foundation, well and drainage work, not just the window, and check each one with Washington L&I's Verify a Contractor tool. You can also send us your project details and we will look for a suitable local provider.
No. We are an independent planning guide and referral service operated by UglyRobot, LLC. Installation, pricing, permits and warranties are agreed directly between you and the provider you choose.
We review enquiries from Spokane and nearby communities. Include your city and ZIP; we cannot promise a suitable provider will be available for every address or timeline.
Yes. An egress window can be added before the basement is finished. Plan the opening, well and drainage first, and tell the permit office if the space will later become a bedroom.