One crew.
One contract.
No subcontractors.
We are experienced in multiple areas of residential renovation across Toronto and the GTA — basements, legal suites, separate entrances, bathrooms, composite decks, and full home renovations. Our team transforms spaces with precision, ensuring every project gets a personalized approach built around your timeline, budget, and vision.
At CNB Renovation, we do everything in-house. The same crew handles framing, tile, plumbing and electrical right through to final inspection. Every scope and price is signed before we start, locked until you approve any change in writing.
GTA projects
Toronto market
coverage
Own crew only
Six specialties. One crew. No subcontractors.
What kind of service do you need?
Eight reasons GTA homeowners choose us
Over 215 completed projects in Toronto and the GTA. Here is what sets us apart from every other general contractor on your shortlist.
One Crew — Full Service
Design, permit, build — no subcontractors, no handoffs. The same licensed crew handles every trade from demolition to final paint.
Price Locked in Writing
The number you sign is the number you pay. No mid-project invoices, no surprise extras — or we cover the difference.
Flexible Financing
Don’t let budget timing delay your project. Payment plans available for qualifying GTA homeowners — start now, pay on your schedule.
Dedicated Site Supervisor
One named supervisor, one phone number, full accountability — from your first walkthrough to the day we hand over the keys.
In-House Permits
BCIN-certified designer on staff. We pull every City of Toronto permit, attend every inspection, and hand you the approval records at closeout.
Full Transparency
Ask about any cost, material, or timeline item — we show you the spec sheet. No black-box billing, no vague line items.
24-Hour Response
We reply within 24 hours — before you hire us, during the build, and after handover. Questions don’t wait, and neither do we.
10-Year Structural Warranty
RenoMark member. Every structural renovation carries a 10-year warranty. We stand behind our work long after the dust settles.
What to expect during the renovation process
After 215+ Toronto and GTA projects, we've refined every step so you're never left guessing.
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01
Thorough site setup before demolition
Floor and stair protection installed, dust barriers erected, waste bins delivered, City of Toronto building permits posted on site. Only then does selective demolition begin — your home stays livable, your neighbours stay happy.
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02
Named site supervisor on every job
One CNB supervisor owns your Toronto renovation from day one to handover. They verify material deliveries against your spec sheet, sign off City rough-in inspections, and post photo updates to your client portal every evening.
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03
Written schedule review every Friday
Your project manager sends a Friday progress note: what is complete, what is on deck next week, and any upcoming dependencies — engineer letters, City inspection slots, long-lead materials. Timeline updated if anything shifts. No surprises.
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04
48-hour change-order rule
Upgrade a countertop, move a wall, add pot lights — we cost it, schedule it, and document it in writing within 48 hours. Nothing is purchased or installed without your signed change order. Your budget and completion date are both protected.
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05
Internal QC walkthrough before yours
Before we call you in, your supervisor runs a full punch-list — grout lines, trim gaps, fixture alignment, door swings. We fix what we find. What you see at handover is already a finished product, not a work in progress.
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06
Final walkthrough & full closeout package
We walk every room with you. At the door: City of Toronto permit numbers, ESA electrical certificate, manufacturer warranty registrations, and as-built drawings for any structural changes — everything in one binder.
Refer a Friend — Earn 5%
Know a GTA homeowner planning a renovation? Send them our way and collect a real commission the day their project closes. No limits, no fine print.
Refer a Friend
Who Needs Our Services
Your friend informs us that you brought them as a referral — then we prepare a written quote for their project. The referral must be declared before any quote is issued.
A Friend Orders
Our Services
Your friend agrees to our selected services and pays for them according to the quote. No action required from your side at this stage.
You Get 5%
From Their Order
After your friend’s project is fully paid, your commission comes to you — cash under $1,000 CAD, e-transfer for $1,000 CAD and above. Which you can share with your friend.
Paid via e-transfer — which you can share with your friend if you’d like :)
To qualify, your friend must inform us of your referral before requesting a quote. If you have already requested a quote and then inform us about the referral program, the friend who invited you loses the opportunity to receive the reward — and in case of any manipulation, both of you lose the opportunity to participate in the referral program forever. Any questions about eligibility should be clarified with our salesperson before the quote.
Refer someone now →We renovate in your city.
And we know its permit office.
From Etobicoke to Scarborough, from North York to Oakville — 215 completed basement, bathroom and deck projects across Toronto and the GTA. Every permit filed locally: we know what City of Toronto Building requires, what Mississauga Building Division wants in the package, and what York Region engineering offices check on first submission. No permit brokers. No delays from wrong paperwork.
We file with City of Toronto Building, Mississauga, York Region and Peel Region offices directly — no third-party permit brokers, no delays from rejected packages.
We come to your address first — Etobicoke, Brampton, Markham, anywhere. Assess the space. Give you a written number 48 hours later. No obligation.
One team from demo through final inspection. No subcontract surprises mid-project. The foreman who starts on your Scarborough basement is the one who signs off on it.
We call within the hour — open 8 AM to 11 PM, 7 days a week
137 Projects — Toronto & GTA
Get a quote.
We call within the hour.
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437-217-5519
30 questions Toronto homeowners ask
before hiring a contractor
Real numbers, straight answers — no sales fluff. Every question we hear on a free walkthrough.
How much does a basement renovation cost in Toronto?
Toronto 2026: basic finishing (drywall, flooring, pot lights) runs $35–55/sqft. Mid-range with bathroom addition $55–80/sqft. Legal second suite with separate entrance $90–140/sqft. A 600 sqft basement = $21K–$84K depending on scope. Call us — we give a same-day ballpark, free.
How much does a bathroom renovation cost in Toronto?
Powder room refresh: $8–14K. Full main-bath gut and rebuild: $18–35K. Spa-level master ensuite with large-format tile, heated floor, frameless glass: $35–60K+. Tile selection drives price more than anything — we show you stunning options at every budget on the free walkthrough.
How much does composite decking cost in Toronto?
Ground-level single-tier: $18–28K. Multi-level with pergola or rain-escape system: $35–65K. Pressure-treated is 30–40% cheaper but needs annual maintenance. Composite lasts 25+ years with zero upkeep — we run the math with you on the quote call.
How much does an in-law suite cost?
A full legal in-law suite (kitchen, bath, bedroom, laundry, separate entrance) typically runs $55–90K. With permit, BCIN drawings, egress, and panel upgrade: $65–100K total. Toronto rental income averages $1,800–$2,400/mo — most suites pay back in 4–6 years.
How much does interior demolition cost in Toronto?
Selective demo (kitchen strip-out or one bathroom): $2,500–$6,000. Full basement gut: $4,000–$10,000. Full home rough-out before major reno: $8,000–$18,000. Quote includes haul-away and recyclables separation — no hidden disposal fees.
How much does a staircase replacement cost?
Straight stair rebuild with oak treads: $4,500–$9,000. Floating oak with LED lighting: $10,000–$18,000. Full custom feature stair with glass or cable railing: $18,000–$40,000+. One crew, one price — permit, carpentry, and finishing included.
Do you offer fixed-price contracts?
Always. We quote the scope, lock the price in writing before day one, and hold it. Any added scope triggers a written change order with cost before extra work starts. No surprise invoices. Ever. Compare this to T&M contractors who bill whatever the hours say.
What payment schedule do you use?
10% deposit at signing, 30% at permit approval, 30% at framing/rough-in complete, 20% at drywall/tile, 10% at final sign-off. Industry rule: never pay more than 10% upfront to any contractor. If they ask for 50% before starting — walk away.
Is the initial walkthrough or estimate free?
100% free — we come to your home, measure, assess conditions, and give you a same-day price range. No pressure, no obligation. Most homeowners say the free walkthrough taught them more than hours of online research.
Can renovation costs be tax-deductible in Ontario?
Yes. The Home Accessibility Tax Credit (HATC) covers up to $20,000 in eligible expenses at 15%. The Multigenerational Home Renovation Tax Credit (MHRTC) applies to in-law suites — 15% on up to $50,000. We itemize quotes to separate eligible vs. non-eligible work. Ask on the walkthrough.
Do you handle permits, or do I arrange them?
We handle everything — BCIN-stamped drawings, permit application, all City of Toronto inspections (framing, plumbing, electrical, insulation, final). You get the permit number and occupancy confirmation. You never talk to the city once.
How long does a basement renovation take in Toronto?
Permit approval: 6–12 weeks (Toronto averages 8 weeks). Build: 8–12 weeks once permit is in hand. Plan 4–5 months total from first call to move-in. We hand you a signed build schedule before we start — not a verbal estimate.
How long does a bathroom renovation take?
3–5 weeks for a full gut-and-rebuild on the build side. Permit adds 4–8 weeks up front (required for plumbing and electrical changes). We pre-order all materials before demo day — no waiting for tiles sitting in a warehouse somewhere.
How long does deck construction take?
Building permit: 3–6 weeks. Construction: 1–3 weeks depending on size and complexity. You're typically on your new deck within 6–8 weeks of signing. Composite decks move faster than wood — no acclimatization needed.
Can my family live at home during the renovation?
For basement renovations — yes, comfortably. For bathroom renos we seal off the work area daily and ensure at least one working bathroom always. For full kitchen demolitions we set up a temporary kitchen. We've completed 200+ projects without displacing a single family.
How do you protect my home during construction?
Floor protection on all traffic routes, zip-wall dust barriers, daily cleanup, and a dedicated site contact who answers texts. Clean and locked at the end of every day. We treat your home like a job site — which means organised, not like a mess.
Are your trades in-house or subcontractors?
Core crew — framing, tile, carpentry, finishing — is in-house. Electrical and plumbing are licensed trades we work with exclusively on every project. Same people every time. We're on site every day. One number to call if anything comes up.
What happens if I want changes mid-project?
We issue a written change order with scope and cost before any change work starts. You approve in writing. Nothing gets built that you haven't authorized and priced. Changes happen — we've built a process to make them painless, not confrontational.
What does your warranty cover?
10-year structural warranty on all framing and structural work. 2-year materials and workmanship warranty on everything else — tile, fixtures, cabinetry, millwork. If anything moves, cracks, or fails in that window, we come back and fix it. No charge, no argument, no three-month wait.
Do you work year-round in Toronto?
Yes — interior renovations run every month. Exterior work (decks, facades) slows December–March but we carry projects through with smart sequencing: interior rough-in in winter, exterior finishing when weather breaks. No forced start dates that push your project into a bad season.
Can you build a legal second suite with a separate entrance?
Yes — our most-built project type. We handle full OBC compliance: egress window (min. 0.35 m²), fire separation (STC 50 assembly), interconnected smoke/CO alarms, ESA wiring, separate entrance excavation, and City of Toronto secondary suite registration. Rental income averages $1,800–$2,400/mo in the GTA.
How do I verify CNB is a legitimate licensed contractor?
WSIB clearance — look us up at wsib.ca in 30 seconds. $2M general liability certificate — emailed before you sign. BCIN-certified designer on staff. RenoMark member. We welcome every verification request — it's a green flag that you're doing this right.
What is a legal basement suite vs. an illegal apartment?
A legal suite has city-registered status: OBC-compliant fire separation, egress windows, ESA-certified wiring, proper ventilation, permit on record. An illegal unit has none of this — and your insurer can deny a claim in a fire. Legal suites command higher rents and add more appraised value to your home.
What GTA cities and neighbourhoods do you serve?
All of Toronto (Etobicoke, North York, Scarborough, East End, West End, downtown), Mississauga, Vaughan, Markham, Richmond Hill, Brampton, Oakville, Burlington, Ajax, Pickering, and Whitby. Free walkthroughs anywhere in the GTA — no travel surcharge, ever.
Do I need a permit for a deck in Toronto?
Yes, if the deck is over 10 m² (108 sqft), attached to a dwelling, or more than 600mm above grade — which is most decks. We handle the application including site plan, structural drawings, and inspections. Unpermitted decks get flagged during home sales and cost more to fix than the permit itself.
What is a BCIN-certified designer and why does it matter?
BCIN (Building Code Identification Number) is the provincial licence required to stamp drawings for permit applications. Without BCIN-stamped drawings, the city rejects your permit. Many firms outsource this and mark it up. We have a BCIN designer on staff — included in your project price, not billed separately.
Do you handle insurance restoration work?
Yes. We work with adjusters — scope documentation, line-item cost breakdowns, photos for claims. Common: water-damage basement rebuild, fire-damage repair, mould remediation and rebuild. Call us same-day — we can be on site for assessment within 24–48 hours.
What is the difference between an in-law suite and an ADU?
The terms overlap. In Toronto, an ADU covers basement suites, garden/laneway suites, and above-garage units. "In-law suite" typically means a basement conversion. We build basement ADUs and can assess garden suite feasibility — City of Toronto now permits both as-of-right on most residential lots.
Can I rent the basement suite immediately after construction?
Once the city issues final inspection and occupancy confirmation — yes. We register the suite with the City of Toronto as part of our permit package. Advertising before occupancy confirmation is premature. We advise waiting for the official close-out, which we handle and deliver to you.
What makes CNB Renovation different from other Toronto contractors?
One crew, no core-trade subcontractors. Fixed-price contract — locked before demo day. 10-year structural warranty. WSIB-cleared, $2M insured, BCIN-licensed. The owner answers directly, 8 AM–11 PM, 7 days. 215+ GTA projects. Zero liens filed. Compare us, check our references, then decide.
Still have questions? The owner picks up directly.