Whole-Home & Gut Renovation in Greater Toronto Area
What a whole-home or gut renovation covers
A gut renovation strips a house down to the studs and rebuilds it: new electrical, plumbing, insulation, drywall, flooring, kitchen and bathroom layouts, sometimes structural changes like removing load-bearing walls or reconfiguring the floor plan. It's the option homeowners pick when a property needs more than cosmetic updates, or when older Mississauga housing stock (think Streetsville, Port Credit, or the Cooksville bungalows) needs its systems brought up to current code before anything else makes sense. This is different from a single-room remodel: it touches every trade, runs for months rather than weeks, and usually requires permits from the City of Mississauga for structural, electrical, and plumbing work.
What to look for before you sign a contract
Ask for proof of WSIB coverage and liability insurance, a breakdown of who pulls permits, and a written schedule with payment tied to completed stages rather than dates on a calendar. Get references from projects of similar size and age of home, not just kitchen refreshes. Confirm whether the contractor manages subtrades directly or subcontracts everything out, since that affects both pricing and accountability when something goes wrong mid-project.
How we score contractors
Our rankings weigh verified licensing and insurance, the consistency of project reviews over time, responsiveness, and how well a contractor handles the permit and inspection process specifically, not just general customer service. See the full breakdown on our methodology page, or jump straight to the ranked guide to Mississauga renovation contractors to compare the 10 businesses in this category side by side.
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All whole-home & gut renovation, ranked by score and relevance
We found 90 businesses offering whole-home & gut renovation; 63 met the criteria for the scored directory. The order weighs each business's overall score by how much of its reviewed work is whole-home & gut renovation, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.
Enquiries from our contact forms may go to partner providers who can do the work, and we may receive a referral fee. Our rankings are based on our published scoring method only and are never affected by referral fees.
Common questions about whole-home & gut renovation
- How much does a whole-home renovation cost in Mississauga?
- Full gut renovations typically run from the low hundreds of thousands for a modest bungalow to well over half a million for larger homes with structural changes, high-end finishes, or additions. Cost depends heavily on square footage, whether you're moving plumbing or walls, and finish level. Get itemized quotes from at least three contractors so you're comparing the same scope of work.
- How often does a house need a full gut renovation versus a smaller update?
- A full gut renovation usually makes sense every few decades, or when buying an older home where wiring, plumbing, or insulation hasn't been touched in 40-plus years. If the systems are sound and you just want new finishes, a room-by-room remodel is usually faster and cheaper.
- What should I expect during the renovation process?
- Expect an initial design and permitting phase (often 4-8 weeks before demolition even starts), followed by demolition, rough-ins for electrical and plumbing, inspections, insulation and drywall, then finishing trades. Living off-site for part of the project is common if you're renovating your only bathroom or kitchen.
- How can I judge the quality of a renovation contractor before hiring them?
- Walk a completed project if possible, not just photos, and ask how they handled an unexpected issue like hidden water damage or knob-and-tube wiring. A contractor who explains how change orders and delays get communicated is usually more reliable than one who only talks about price.