Yes — converting or enlarging a basement window for a bedroom typically requires a permit through the City of Mississauga's building department. We handle the drawings, application and inspection scheduling as part of the project.
We do both as part of the same job when needed. Port Credit's 1950s lakefront bungalows commonly have sills sitting close to grade with water-damaged original cedar jambs. Rather than installing a new window into a compromised frame, we rebuild the sill pan and lower jambs in cellular PVC first, so the new unit has a solid, properly sealed perimeter to bond to.
They take more time than a standard retrofit. Port Credit sills sit close to grade and the original cedar jambs are usually water-damaged at the lower corners — we rebuild the sill pan and lower jambs in cellular PVC before setting the new unit so the perimeter seal actually has something solid to bond to.
Yes. We specify stainless hardware, dual-seal warm-edge spacers and proper exterior caulking to handle the moisture load.
Yes, in most cases. These original bay assemblies typically rely on a seat board and header sized for the builder-grade unit installed at the time. When we replace them, we assess whether the existing structural support is adequate for the new unit's weight and rebuild the seat board and header as needed, rather than simply dropping a new bay window into the old opening.
Yes. Many of Mississauga's older bungalow neighbourhoods, including areas near Port Credit and Lorne Park, have basements being converted into bedrooms or secondary suites. We install code-compliant egress windows sized for legal escape and coordinate the required permit through the City of Mississauga as part of the project.
Mississauga Reviews
What Mississauga homeowners are saying
Verified reviews from real Trust Build installations in Mississauga.
We live in Mississauga and recently had new windows and doors installed by Trust Build Windows, and we couldn't be happier with the experience and the results. From start to finish, the entire process was smooth, stress-free, and very professional. The quality of the installation is excellent, and we have already noticed a real improvement in comfort and energy efficiency in our home. A special thank you to Iliya, who was outstanding throughout the entire process. We would also like to thank Slava and the team for their excellent workmanship and professionalism. It was impressive that the entire project was completed in just two days.
