Second-Storey Addition in Windsor

Thinking about second-storey addition for your Windsor home? Skip the phone tag. Describe the project in the form, attach photos, and get a price back — usually the same day.

The rest of this page covers how the project usually runs in Windsor and what shapes the quote, so you know what you're looking at before you ask.

Southwestern Ontario around Windsor carries a lot of older housing, and renovations here routinely open walls onto the past — dated wiring, plaster, and framing that predates modern spans — so good quotes carry honest contingency.

That local context matters for second-storey addition: Olde Walkerville is a designated heritage conservation district, and exterior alterations there may require heritage approval alongside the building permit.

Windsor still has some of the most affordable older housing in Ontario, which makes it a natural place to buy a solid 1920s brick house and put real money into the interior. Walkerville and Sandwich are full of character homes with original trim and hardwood, while Riverside and South Windsor lean toward post-war bungalows and ranches that take well to open-concept rework.

Renovators here tend to focus on kitchens, upstairs bathrooms, and turning damp basements into usable living space — plus the insulation and window upgrades these older homes almost always need. Describe your project, from a single room to a full gut and rebuild, and we'll get you a free quote from contractors who know Windsor's housing stock street by street.

• Olde Walkerville is a designated heritage conservation district, and exterior alterations there may require heritage approval alongside the building permit.
• A large share of Windsor homes were built before 1960, so electrical, plumbing, and insulation upgrades are common companions to cosmetic renovations.
• Basement waterproofing deserves real attention here — parts of Windsor and Riverside have a history of basement flooding during heavy rain events.

No two Windsor homes are the same, so instead of a flat price, here's what actually shapes a second-storey addition quote:

• Whether the existing foundation can carry the load or needs reinforcement
• Full second storey versus a partial top-up over part of the house
• The age of the home — much of Windsor's housing has been standing a long while, and what's found once walls open (wiring, plumbing, framing) is the honest wildcard in older-home renovations.
• Heating and cooling capacity — many top-ups need a furnace or ductwork upgrade
• Whether you stay in the house or move out during the structural phase
• Exterior finish choices and how the new level meets the old walls below

For the full breakdown of what second-storey addition involves, see our Second-Storey Addition guide — then request a free Windsor quote for your actual job.