How long does it take to install egress windows?

Installing egress windows typically takes 1-2 days per window for a professional installation, though the timeline can extend to 3-5 days depending on your basement's specific conditions and any complications that arise.

The actual window installation is just one part of the process. Day one usually involves cutting through the foundation wall, which requires specialized concrete cutting equipment and proper dust containment. This is the most time-consuming and messy part of the job. For poured concrete foundations common in Ottawa homes built after 1960, cutting typically takes 4-6 hours per opening. Older stone or block foundations may take longer and require more careful handling.

Day two focuses on installing the window well, waterproofing, and fitting the actual window unit. This includes excavating outside the foundation, installing proper drainage (crucial in Ottawa's clay soil), applying waterproof membrane, and ensuring the window well meets Ontario Building Code requirements for size and drainage. The window itself usually goes in relatively quickly once the opening is properly prepared.

Weather can significantly impact timelines in Ottawa's climate. Rain delays are common since the foundation opening needs to stay dry during installation. Most contractors avoid egress window installation between December and March due to frozen ground conditions and the difficulty of exterior excavation. The best installation season runs from April through November.

Several factors can extend the timeline beyond the typical 1-2 days. Homes with finished basement walls require additional time for drywall removal and restoration. Discovering unexpected utilities in the wall (common in older Ottawa homes) can add a day for rerouting. Clay soil conditions, prevalent throughout Ottawa, may require additional excavation time and specialized drainage solutions.

Permit processing adds to the overall project timeline but doesn't affect the actual installation days. City of Ottawa building permits for egress windows typically take 10-15 business days to process. The installation can't begin until permits are approved, so factor this into your planning.

Professional installation is strongly recommended for egress windows due to structural, waterproofing, and safety requirements. This isn't a DIY project - cutting foundation walls requires expertise to avoid compromising structural integrity, and improper waterproofing can lead to serious basement flooding issues.

For a free assessment of your specific egress window needs and timeline, contact Ottawa Basements. We'll evaluate your foundation type, soil conditions, and any potential complications to provide an accurate timeline for your project.