How much does basement finishing cost in Toronto 2026?

Basic $35–55/sqft ($25K–$45K). Legal suite $75–110/sqft ($65K–$120K+).

GTA Renovation Contractor · Since 1994

We Don't Just Renovate.
We Rebuild.

Q: How much does commercial renovation cost in Toronto?

Office $15K–$150K. Restaurant $80K–$250K. Medical clinic $100K–$300K+.

Q: Is Dotch Construction licensed?

Yes. HCRA #B61271, WSIB certified, Tarion Approved for new construction, fully insured.

Basement finishing, full house renovation, commercial & new construction — done right, on time, on budget. 30 years · 1500+ projects · 24 GTA cities.

Get Free Consultation View Our Projects

30+

Years in GTA

1500+

Projects done

4.9★

Houzz & HomeStars

GTA cities

✓

Warranty on work

🏗️

Est. 1994 · 30+ Years Serving GTA Homeowners Since 1994

Real project · Dotch Construction

30+

Years of experience

4.9★

Houzz & HomeStars

🛡️

Tarion Approved

New construction

✅

Fully Licensed

& Insured

Free site visit No obligation · 24hr response

📞 Call Now

Basement Finishing 1500+ Projects Completed Legal Basement Suite 30+ Years in GTA Full House Renovation 4.9★ Houzz Rating Commercial Renovation 24 GTA Cities Served New Home Construction Tarion Approved Builder House Additions HCRA #B61271 Condo Renovation WSIB Certified Attic Conversion Free Site Visit — GTA Garage Conversion Flood Restoration Basement Finishing 1500+ Projects Completed Legal Basement Suite 30+ Years in GTA Full House Renovation 4.9★ Houzz Rating Commercial Renovation 24 GTA Cities Served New Home Construction Tarion Approved Builder House Additions HCRA #B61271 Condo Renovation WSIB Certified Attic Conversion Free Site Visit — GTA Garage Conversion Flood Restoration

Our Services

Everything Your
Home Needs.

One licensed contractor. All trades. We guide every permit. No chaos.

Basement Finishing

Transform unused space into a legal suite, family room, or home office.

$45,000 – $140,000+

↗

Commercial

Commercial Renovation

Offices, medical clinics, restaurants, retail. Phased work keeps you open.

$60,000 – $350,000+

↗

Renovate vs Move

Full House Renovation

Full gut to finished — kitchen, baths, flooring, structural. All trades in-house.

$100,000 – $400,000+

↗

Expand Your Home

House Additions

Rear, side or second storey addition — more space without the moving costs.

$150,000 – $450,000+

↗

Tarion Approved

New Construction

Custom homes, laneway & garden suites. Tarion warranty on every build.

$300 – $500/sqft

↗

Insurance Work

Condo Renovation

Full condo renovation and flood restoration. We work directly with your insurer.

$50,000 – $150,000+

↗

Add Living Space

Attic Conversion

Unused attic converted into bedroom, loft or office — adds value instantly.

$80,000 – $160,000+

↗

Maximize Your Lot

Garage Conversion

Attached or detached garage converted into living space or rental income.

$60,000 – $130,000+

↗

Ready to Start? Call Us Now.

Free site visit · Transparent pricing · 24-hour response · Est. 1994

📞 416-716-4090 Get Free Quote →

Our Process

How It
Works.

Simple. Transparent. No surprises.
From your first call to the final walkthrough.

Free Site Visit

We come to you — anywhere in GTA. No cost, no commitment. We assess the space and answer every question.

Detailed Quote

Detailed written quote within 48 hours. Transparent pricing — it won't increase once we start.

We Build

Licensed trades, all permits handled. Daily updates so you always know what's happening.

Final Walkthrough

We walk through every detail. You sign off only when fully satisfied — backed by our workmanship warranty.

Start with a Free Site Visit →

Budget Estimator

What Will It
Cost You?

Pick your project type and adjust the size — your budget range updates instantly.

Free site visit — no obligation

Transparent pricing — no hidden costs

All permits handled for you

Response within 24 hours

Renovation Cost Estimator

Select type · adjust size · see budget instantly

1 — What are you renovating?

2 — Square footage

800 sqft

3002,500 sqft

Your estimate

—

* Rough estimate only. Exact pricing after free site visit.

Our Work

Real Projects.
Real Results.

Transformations

Before & After — Real Results

Drag the slider to see the transformation. Real GTA projects by Dotch.

Basement North York after renovation — finished

⇔

Before

After

Basement Finishing

Vaughan, ON

← drag to compare →

Full house renovation King City — before

⇔

Before

After

Full House Renovation

King City, ON

← drag to compare →

⇔

Before

After

Basement Finishing

North York, ON

← drag to compare →

⇔

Before

After

New Home Construction

GTA, Ontario

← drag to compare →

Client Reviews

What GTA Homeowners
Say About Dotch.

★★★★★

"I did most of my renovation projects with Dotch and I am more than happy with the results. Yuri is very detail-oriented and professional."

Alex Levitin

Repeat Client · March 2025

⭐ Google Review

★★★★★

"The real estate agent recommended DOTCH Construction & Renovation to me — and I completely understand why. Exceptional work and professionalism."

Larissa G.

GTA Client · March 2025

⭐ Google Review

★★★★★

"Yury was recommended to me by a friend and I have used him for two bathroom renovations in different houses. He is a true professional."

John Boland

2× Bathroom Renovation · January 2024

⭐ Google Review

★★★★★

"We worked with Dotch Construction on a couple of projects and were extremely pleased with the quality of construction and attention to detail."

Anastasia Wilson

Multiple Projects · GTA

⭐ Google Review

Dotch Construction & Renovation Inc. on Houzz Project Photos & Reviews — Toronto, ON CA

★★★★★

Verified Houzz Reviews

4.9

View on Houzz →

GTA's Most Trusted Since 1994

Tarion Approved · WSIB Certified · 4.9★ on Houzz & HomeStars · 1500+ Projects

WhatsApp Us Free Consultation →

Where We Work

Serving 24 Cities
Across the GTA.

From Toronto to Barrie, we send our team to you. Free site visit anywhere within 80km of Toronto.

✓ Free site visit — no travel charge

✓ 24-hour response guaranteed

✓ All permits pulled locally — we know each city's rules

✓ 30+ years of GTA project experience

Get Free Quote →

Core

Toronto

Core

Vaughan

Core

Mississauga

Richmond Hill

York Region

Markham

York Region

Brampton

Peel Region

Oakville

Halton Region

Burlington

Halton Region

North York

Toronto

Etobicoke

Toronto

Scarborough

Toronto

Thornhill

York Region

Woodbridge

Vaughan

King City

York Region

Aurora

York Region

Newmarket

York Region

Pickering

Durham Region

Ajax

Durham Region

Whitby

Durham Region

Oshawa

Durham Region

Milton

Halton Region

Georgetown

Halton Hills

📍

Your City?

Just call us

FAQ

Common
Questions.

How much does basement finishing cost in Toronto in 2026?

Basic finish: $35–55/sqft ($25K–$45K total). Mid-range with bathroom: $55–80/sqft ($45K–$75K). Legal basement suite with separate entrance: $75–110/sqft ($65K–$120K+). We assist with all permit requirements — from drawings to City Hall submissions.

How much does commercial renovation cost in Toronto?

Office refresh: $15K–$40K. Full office renovation: $50K–$150K. Restaurant: $80K–$250K. Medical clinic: $100K–$300K+. We work around your business hours — operations never stop.

House addition types and costs?

Rear addition: $90K–$300K. Side addition: $100K–$250K. Second storey: $250K–$360K. Sunroom: $80K–$200K. In-law suite: $150K–$250K. Laneway house from $350K. Garden suite from $300K. HCRA licensed for all addition types.

Is Dotch Construction licensed and insured?

Yes. HCRA License #B61271, WSIB certified, full liability insurance, and Tarion Approved for new construction. Many GTA contractors operate without these licences — which is illegal and leaves homeowners unprotected.

What areas does Dotch serve?

All GTA within 80km of Toronto: Toronto, Vaughan, Richmond Hill, Markham, Mississauga, Brampton, Oakville, Burlington, Ajax, Pickering, Whitby, Oshawa, Hamilton, Newmarket, Aurora and more — 24 cities total.