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This page is the planning hub for any renovation in a Canadian house. It walks through how to define what you want done, which kinds of work usually need a building permit, the consumer protections that apply to renovation contracts in Ontario and Quebec, the hazardous materials older houses hide, and how households cope with dust, noise and a kitchen or bathroom out of service.
Once you know which room or system you are tackling, our dedicated pages go deeper: kitchen, bathroom and basement renovations, home additions, attic and garage conversions, condo and apartment work, and accessibility changes. For how a general contractor runs the trades, change orders and holdbacks, see our general contractors page.
Types of home renovation projects and where to start planning each one
- Kitchen renovations bring plumbing, venting, new circuits and cabinetry together in one room, as our kitchen renovations page explains.
- Bathroom renovations succeed or fail on waterproofing, drainage and ventilation, which our bathroom renovations page explains step by step.
- Basement projects start with water, radon and headroom, and a rental suite follows separate rules, as our basement renovations and basement finishing pages set out.
- Home additions, attic conversions and garage conversions add living space and raise zoning, structural and fire-safety questions that each of those pages addresses.
- Condo and apartment renovations add building rules or tenant rights on top of the usual permits, so start with our condo renovations or apartment renovations page.
- Accessibility and aging-in-place renovations adapt entrances, bathrooms and circulation for someone with reduced mobility.
Scoping a home renovation: needs, priorities and the order of decisions
- Start with problems rather than finishes by listing what doesn't work in the house today, such as a cramped kitchen, a damp basement or a bathroom that is hard to use, before collecting photos of looks you like.
- Put the building ahead of the decor, since roof leaks, foundation water, outdated wiring or a failing furnace should be fixed or planned for before money goes into finishes that would be torn out to reach them.
- Decide early what is fixed and what is flexible, because moving plumbing stacks, gas lines or load-bearing walls changes the scope far more than changing cabinet colours.
- Bring in assessments where they matter: an engineer for structural changes, a licensed electrician for panel capacity, and an energy advisor if exterior walls or the attic will be opened.
- Have drawings prepared for anything beyond cosmetic work, so every contractor prices the same project and the permit office sees exactly what will be built.
Which home renovations need a building permit, and why zoning still applies
Building permits come from your municipality and the details vary, but the dividing line is broadly similar across the country: work that changes the structure, the layout, the openings in the walls or the plumbing and heating is reviewed, while like-for-like replacement of finishes usually isn't. Toronto's permit guidance is a useful example. It requires a permit for adding or removing walls, for new windows or doors where there were none before, and for installing or modifying heating or plumbing systems, while repairing and replacing plumbing fixtures and installing cabinetry and millwork appear among work that doesn't need one.
Two points catch homeowners out. Toronto notes that even when no permit is required, the work must still comply with the zoning bylaw, and that changing a building's use, such as turning a single-unit house into a multi-unit house, needs a permit even when no construction is proposed. Electrical work runs on a separate track: in Ontario, the Electrical Safety Authority says only licensed electrical contractors may be hired for electrical work in your home, and they file the notification and have the work reviewed, so a contractor who asks you to pull the permit yourself is a warning sign.
Estimates, deposits and cancellation rights on a home renovation contract
In Ontario, the Consumer Protection Act gives renovation customers specific rights. The province's guidance says home renovation contracts above a nominal value must be in writing, and that when a contract includes an estimate, the final price for all goods and services can't be more than 10% over it unless you agreed to new work or a new price. If you sign a renovation or repair contract in your own home, you have a 10 calendar-day cooling-off period to cancel for any reason without a cancellation fee, although you owe reasonable compensation for work and materials already supplied if the job started during that period.
In Quebec, a renovation contractor must hold an RBQ licence with the subclasses the work requires, which you can confirm in the RBQ's online register. When the contract is signed with an itinerant merchant, meaning a contractor who concludes it away from their place of business, such as at your kitchen table, the Office de la protection du consommateur explains that you can cancel without fees or reasons within 10 days after receiving a written copy of the contract, even if the work has started, and the contractor must reimburse you within 15 days of your cancellation.
- Make sure the written contract names the contractor and describes the work and materials, the schedule, the payment stages, the warranty, clean-up and the subcontractors involved, as Ontario's guidance recommends.
- Ask for proof of liability insurance and of workplace injury coverage for the crew, so an accident on your property doesn't turn into your claim.
- Check that the plumbers, electricians and gas fitters on the job hold the provincial licences their trades require.
Asbestos, lead paint and other hidden hazards to check before renovation demolition
Renovation disturbs materials that have sat quietly for decades. Health Canada says a home built before 1960 probably contains lead-based paint, and that the exterior of one built between 1960 and 1990 may too. It warns against removing that paint with sanders, heat guns or blowlamps, which create toxic dust and fumes, and advises keeping children and pregnant women away from the work area, since the risk is greatest for children. For asbestos, which can turn up in siding, cement and plaster, floor and ceiling tiles, roofing and insulation around hot water pipes and tanks, Health Canada recommends having a professional test before renovating and hiring a qualified removal specialist if it's found.
- Mould behind a vanity, under old flooring or inside a basement wall points to a moisture problem that needs fixing at its source, not just cleaning.
- Old wiring discovered once walls are open should be assessed by a licensed electrician before it's covered again.
- If something suspect turns up mid-project, stop work in that area and call the right specialist rather than letting the crew carry on around it.
Living at home during a renovation: dust, noise, utilities and timing
Whether you can stay home depends on which rooms are affected and for how long. Losing one bathroom in a house with two is an inconvenience; losing the only bathroom, the kitchen, or heat in winter is a different matter, and some households arrange other accommodation for the worst weeks. Ask the contractor for a schedule that shows when water, power or heat will be shut off and when the loudest demolition happens, and agree in advance on working hours, site access and where materials and waste bins will go.
- Have the work area sealed off with plastic sheeting and a zippered door, and nearby return-air grilles covered, so the furnace doesn't carry dust through the house.
- Set up a temporary kitchen with the fridge, a microwave or hot plate and access to a sink when the kitchen is out of service.
- Keep children and pets out of the work zone, especially while old paint or suspect materials are being removed.
- Plan excavation, roofing and exterior openings for the warmer months, and keep interior-only projects for colder ones.
Home Renovations: frequently asked questions
Do I need a permit to renovate my house?
It depends on the work. Structural changes, new or enlarged openings, and new or modified plumbing or heating typically need a permit, while replacing finishes, fixtures or cabinets usually doesn't. Your municipality decides, so describe the project to its building department before you sign a contract.
Can I cancel a home renovation contract after signing it?
In Ontario, a renovation contract signed in your home comes with a 10-day cooling-off period. In Quebec, a contract signed with a contractor acting as an itinerant merchant can be cancelled within 10 days after you receive the written copy. Outside those situations, cancellation depends on the terms of the contract.
Should I move out during a renovation?
Not always. Many people stay through a single-room project. Consider moving out when the only kitchen or bathroom will be out of service for a long stretch, when heat will be off in cold weather, or when lead paint or asbestos is being disturbed.
Do I need an architect or designer for a renovation?
For cosmetic updates, rarely. For changes to walls, structure, the building envelope or the layout, drawings are usually needed for pricing and permits. Ontario's renovation guidance advises checking a designer's registration with the province before hiring them, and our architects page explains who may sign which plans.
How do I check a renovation contractor's licence?
In Quebec, look up the contractor's RBQ licence and subclasses in the RBQ's online register. In Ontario, ask electrical contractors for their ESA licence number and verify it with the Electrical Safety Authority's lookup tool; for other trades, ask which provincial certificates they hold.
Sources
- City of Toronto: When do I need a building permit?
- Government of Ontario: Your rights when starting home renovations or repairs
- Office de la protection du consommateur: Cancelling a renovation contract
- RBQ: Check a contractor's licence
- Electrical Safety Authority: Hire a Licensed Electrical Contractor
- Health Canada: Lead-based paint
- Health Canada: Asbestos and your health
Written by the LokalMatch editorial team. Reviewed by Zubair Afzal on September 10, 2026. How we write and check our guides
