Do I need a permit to renovate my house?

For most meaningful work, yes. Removing or altering walls, adding or relocating plumbing, new electrical circuits, changing window or door openings and any addition all require a building permit. Unpermitted work can void your home insurance, trigger a stop-work order and complicate a future sale. We handle drawings, applications and inspections as part of the project.

Can you remove a load-bearing wall to open up my main floor?

In most houses, yes — but it has to be assessed before it’s promised. The beam has to be sized to the actual span and the load carried properly down to the footing. GMC is led by an owner who holds a Master’s degree in Structural Engineering, and we engage a licensed professional engineer to produce the stamped drawings the permit requires.

Can we live in the house during the renovation?

It depends on scope. For a single-room or partial renovation, usually yes — we seal the work zone and keep the rest of the house usable. Full home renovations and gut renovations mean no working kitchen or bathroom for extended periods, and most families move out. We’ll tell you honestly what each stage means so you can budget for rent if it’s needed.

Why do renovation budgets so often go over?

Two reasons. The first is allowances — a placeholder number for tile or cabinetry that turns out to be half what you actually choose. The second is what’s found after demolition: old wiring, failing plumbing, undersized panels, hidden water damage. We investigate the house before quoting and specify properly, which is how a fixed price stays fixed.

Whole Home Renovation Toronto | Fixed-Price

Built to Last — Not Just Installed

What makes us different starts before the first material is ordered. GMC Construction is founded and led by an owner who holds a Master's degree in Structural Engineering — so every project is approached with a genuine, advanced understanding of structure, load-bearing changes, drainage, and moisture protection. Most renovation companies focus only on how a space looks. We start with what's underneath, because that's what determines whether your renovation lasts five years or twenty-five.

Home Renovation Contractors in Toronto & the GTA

Planning a whole home renovation Toronto or GTA-wide? A whole-home renovation is the largest project most families ever take on. It touches every system in the house, every room you live in, and every dollar of the budget you set. GMC Construction Inc. renovates homes across Toronto and the Greater Toronto Area — single rooms, full floors and complete gut renovations — on a fixed-price quote backed by a written workmanship warranty and 500+ completed projects.What separates a renovation that finishes on budget from one that doesn’t is almost never the finishes. It’s what gets discovered after demolition. With 10+ years across the GTA and an owner who holds a Master’s degree in Structural Engineering, we assess what’s behind the walls before we quote — load paths, electrical capacity, plumbing condition and permit requirements — so the number you agree to is the number you pay.

Our Home Renovation Services

Whole-Home Renovations

Complete transformations from demolition to final finish — every room, every system, one contract and one project manager accountable for the result.

Kitchens & Bathrooms

The two rooms that drive resale value and daily quality of life. Custom cabinetry, proper waterproofing, and mechanical work done right the first time.

Basements & Added Living Space

Finished basements, legal secondary suites and in-law accommodation — the least expensive square footage you will ever add to your home.

Open-Concept & Structural Changes

Removing load-bearing walls, adding beams and reworking floor plans — assessed properly, permitted, and built with stamped drawings from a licensed professional engineer where required.

Electrical, Plumbing & HVAC

Panel upgrades, rewiring, repiping and heating and cooling adjustments — the systems that decide whether a beautiful renovation actually works to live in.

Permits & Project Management

Drawings, permit applications, inspections and trade coordination handled end to end — so your renovation moves forward instead of waiting on paperwork.

How Much Does a Home Renovation Cost in Toronto?

Renovation cost is driven by scope, the age and condition of the house, and how much of the work is behind the walls rather than on them. Most GTA projects fall into these tiers:

Single Room or Partial

$50,000 – $100,000

Multi-Room Renovation

$100,000 – $180,000

MOST COMMON

Full Home Renovation

$180,000 – $320,000

Gut Renovation to Studs

$320,000 – $450,000

Luxury / Heritage

$450,000+

These reflect complete, turnkey home renovations in the GTA for 2026 — including drawings, permits, demolition, structural work, mechanical systems, and all trades and finishes. A full home renovation typically covers kitchen, bathrooms, flooring, lighting, painting and mechanical updates in a 1,800–2,600 sq ft house. Key factors that affect home renovation costs:

Age of the house — knob-and-tube wiring, galvanized plumbing, undersized panels and missing insulation are common in older GTA homes and are found after demolition, not before.
Structural changes — removing load-bearing walls means beams, columns, stamped drawings and permits, which adds both cost and schedule.
Mechanical scope — a panel upgrade, repipe or new HVAC zoning is invisible in the finished house but often the largest single line item.
Permits and zoning — permitted work costs more up front and far less later; unpermitted work can void insurance and stall a future sale.
Finish level — cabinetry tier, countertop material, tile and millwork are where budgets move fastest once the structure is settled.

We assess the house — not just the rooms you want changed — before quoting, so the number accounts for what’s actually there. You get a fixed-price, itemized quote after a free in-home consultation.

Why Choose GMC for Your Home Renovation?

Structural expertise from the first walkthrough

Knowing which walls carry load and which don’t shapes the entire design. GMC is led by an owner who holds a Master’s degree in Structural Engineering, and we engage a licensed professional engineer for stamped drawings whenever the work requires it.

Fixed-price quotes that hold

Renovation budgets fail through allowances and change orders. We investigate before we price, specify properly, and give you an itemized fixed price — so you can finance and plan against a real number.

Permits and drawings handled

Drawings, permit applications, inspections and sign-off managed by us. Permitted work protects your insurance coverage and your home’s value at resale — it isn’t a cost to avoid.

One contract, one point of contact

Demolition, framing, electrical, plumbing, HVAC, millwork and finishes under a single agreement with one project manager — instead of you coordinating eight trades and absorbing the gaps.

A schedule you can plan around

You may be living in the house or paying rent elsewhere. We sequence trades properly, phase where it helps, and tell you honestly what each stage means for your family.

Licensed, insured, proven

Fully licensed and insured with WSIB coverage, 500+ completed projects and a 5.0-star rating from 84 reviews — and a written workmanship warranty on everything we build.

What Decides Whether a Renovation Goes Well

Four things separate renovations that finish on budget from the ones that don’t. All four are decided before demolition, not after.

Permits & Zoning

Structural changes, new plumbing and electrical, and any addition require a building permit. Review commonly takes 4 to 8 weeks, and a variance adds months — starting early is the cheapest schedule decision you can make.

Load-Bearing Walls

Open-concept layouts usually mean removing a wall that carries load. That requires a beam sized to the actual span, proper support down to the footing, and stamped drawings — assessed before it’s promised, not during demolition.

Electrical & Plumbing Capacity

Many older GTA homes still run 100-amp service, knob-and-tube branches or galvanized supply lines. Discovering it after the walls open is the single most common source of change orders — so we check first.

Living Through It

Staying in the house saves rent but slows the work; moving out costs money but shortens the schedule. We map both honestly against your project so you choose with real numbers, not optimism.

Home Renovation Projects We Take On

Most home renovations in the GTA fall into one of three shapes. Here’s what each typically involves:

Room-by-Room Update

One or two rooms brought up to date — usually a kitchen or bathroom — without touching the rest of the house. The most manageable way to renovate while continuing to live there.

Full Home Renovation

Every room refinished with kitchen and bathrooms rebuilt, flooring and lighting replaced throughout, and mechanical systems updated where needed. The most requested scope.

Gut Renovation

Taking the house back to studs — new layout, new systems, new envelope. The most disruptive and the most complete, and where early structural assessment matters most.

How Long Does a Home Renovation Take?

A single-room renovation typically runs 4 to 8 weeks on site. A multi-room project takes 3 to 5 months. A full home renovation runs 5 to 8 months, and a gut renovation 8 to 12 months. Design and permit approval happen before any of it and commonly add 2 to 4 months — which is why we start drawings and applications as soon as the scope is settled.

Serving Toronto & the Greater Toronto Area

GMC Construction Inc. renovates homes throughout Toronto and the GTA — century semis and detached houses downtown, post-war bungalows in the inner suburbs, and newer homes across the surrounding municipalities. We know how each municipality’s permit process actually runs and what older housing stock tends to hide.

Let’s Renovate Your Home

Whether you’re updating one room, renovating the whole house, or taking it back to studs, we’re ready to help. Call us at 647-450-4466 or request your free, fixed-price quote — and we’ll walk the house with you before a single number goes on paper.