Window well installation in Markham runs $800–$2,500 per well, installed. Where your job lands in that range depends on depth, width, soil conditions, and whether drainage is part of the scope. A standard galvanized well on a straightforward lot sits near the bottom. A deep, wide well with a footing-tile tie-in, soil excavation through Markham clay, and a permit sits near the top. Final cost varies a lot with job size, scope, and site conditions, so we quote each address individually after a free site evaluation.
What's included in a window well installation
- Layout and marking, with the well positioned so the window opens fully and the escape path clears OBC 9.9.10.1 exit requirements
- Soil excavation to the footing, by hand where machine access is tight
- Galvanized steel or corrugated well body, anchored to the foundation wall clear of the window frame and any lintels above
- Drainage package: washed gravel, filter cloth, and connection to the footing tile or a dedicated dry well
- Backfill, grading, and cleanup
- Optional cover: $300–$900
Where the existing well is sound but too shallow, raising it is usually the cheaper route at $800–$1,800. Leaking or corroded wells are handled under replacement and repair at $500–$2,000, or leak repair at $500–$2,000.
What it costs in Markham
| Service | Typical range |
|---|---|
| Window well installation | $800–$2,500 |
| Window well covers | $300–$900 |
| Window well drainage & waterproofing | $500–$3,000 |
| Window well raising | $800–$1,800 |
| Window well replacement & repair | $500–$2,000 |
| Egress window installation (full code-compliant job) | $4,500–$8,000 |
| Basement waterproofing | From $1,200 |
Every price above is a starting range, not a quote. Depth of dig, how much soil has to leave the site, whether the well ties into existing drainage, and access all move the number.
How the process works
Free site evaluation
we measure the window, check the foundation wall, and look at how water currently drains. You get a written quote within 48 hours
Permit
where the work touches egress requirements, we handle the application through the City of Markham's building department and build to the approved drawings
Install
most single-well jobs are done in one day; two days where excavation is heavy or drainage has to be run to a new dry well
Inspection and handover
we walk you through the drainage path, the cover fit, and the 10-year workmanship warranty on the install
Why Markham homeowners call us
Egress Window Pros Toronto is a family-run basement contractor with 12 years of below-grade work and 400+ egress windows and window wells across Toronto and the surrounding area. We're licensed, insured, and WSIB covered.
Markham has its own set of problems. Much of the town sits on heavy clay that holds water against the foundation, and the older lots around Unionville Main Street often have shallow wells that were never sized for a finished basement. Homes near Toogood Pond and the low ground around the Rouge tributaries need the drainage designed first, not added afterwards. We install year-round and design every well for Toronto-area freeze-thaw, so the gravel bed and tile connection still work in February.
Services we offer in Markham
Egress window installation, window well installation, window well covers, drainage and waterproofing, well raising, replacement and repair, leak repair, basement waterproofing, and basement door installation, from Unionville and Milliken to Cornell and the streets around Markham Civic Centre.
Call for a free site evaluation and a written quote within 48 hours. We'll tell you what your well actually needs, and what it doesn't.