Best basement renovation & finishing contractors in the Greater Toronto Area
If you need the water problem solved before anything gets finished, several names here (Direct Basement Waterproofing, Direct Basement Waterproofing Toronto, Aquamaster) specialize in that end of the job; the rest are general renovation contractors who also handle basements. For adjacent needs, see the best renovation contractors in the Greater Toronto Area, best water damage restoration services in Greater Toronto Area, best drainage service companies in the Greater Toronto Area, and best drywall contractors in the Greater Toronto Area for specialists in those specific trades.
Picks are ranked by score and relevance to basement renovation & finishing, so a lower overall score can rank higher here.
At a glance
| # | Business | Score | Rating | From | Best for |
|---|---|---|---|---|---|
| 1 | Direct Basement Waterproofing | 95 | 5 (320) | — | Basement waterproofing specialist |
| 2 | All Painting Toronto | 94 | 5 (244) | — | Painting & finishing touch-ups |
| 3 | Direct Basement Waterproofing Toronto | 93 | 5 (127) | — | Waterproofing with fast turnaround |
| 4 | Astaneh Construction | 92 | 5 (118) | — | Full basement finishes on budget |
| 5 | JP Lucky Construction And Roofing | 92 | 4.9 (148) | — | Fast-moving full renovations |
| 6 | Smart Renovations | 92 | 4.9 (136) | — | Design-forward basement transformations |
| 7 | HandyBros | Home Renovations & General Contracting | 91 | 4.9 (151) | — | Rescuing stalled projects |
| 8 | Aquamaster Basement Waterproofing Toronto | 91 | 4.9 (281) | — | Diagnosis-first waterproofing |
| 9 | GMC Construction Inc. | 91 | 5 (85) | — | Hands-on small-to-large jobs |
| 10 | East Home Renovation Inc. 东财建筑装修 | 91 | 5 (79) | — | Structural basement work |
| 11 | Masterpiece Renovation | 91 | 5 (81) | — | Trusted small-to-major jobs |
| 12 | Eastern Western Construction Design & Build Toronto | 90 | 5 (71) | — | Whole-basement to whole-home renovation |
| 13 | 3M Renovations Inc. | 90 | 5 (75) | — | Owner-led smaller basement projects |
| 14 | Desa Contracting and Restoration | 90 | 4.9 (92) | — | Water damage restoration & repair |
| 15 | Summit Contractors | 90 | 5 (71) | — | Structural renovations with complex trades |
1. Direct Basement Waterproofing
5 (320 reviews)score 95/100
This one deals almost exclusively in keeping basements dry, and 320 reviews back it up with a near-perfect rating. Terry's crew, including Thomas and Fero, gets named repeatedly for fast, clean work that holds up through heavy rain.
- Punctual arrival and quick job completion
- Clean worksites with minimal disruption
- Fair estimates without upsell pressure
- Named technicians stay reachable by phone and text throughout
Google-verified320 Google reviews
Services: basement renovation, waterproofing service, drainage service, flooring contractor
2. All Painting Toronto
5 (244 reviews)score 94/100
All Painting Toronto isn't a basement specialist, but their prep, drywall repair, and finishing work (popcorn removal, floor refinishing, staircase staining) makes them a strong pick for the cosmetic side of a basement job or a standalone paint refresh. Edy's 20-year family operation keeps a near-perfect rating across 244 reviews.
- Fast, reliable turnarounds
- Thorough surface prep and floor protection
- Owner-responsive communication
- Competitive, accountable pricing from quote to cleanup
Watch out: Primarily a painting and surface-finishing outfit rather than a structural basement contractor.
Google-verified244 Google reviewsover 20 years
Services: kitchen renovation, basement renovation, home additions, custom carpentry finishing
3. Direct Basement Waterproofing Toronto
5 (127 reviews)score 93/100
Eight years of five-star reviews and a team led by Jack, Sergei, Vlodomir, Greg, and Terry point to a waterproofing operation that finishes ahead of schedule with zero repeat leaks reported. Same-day quotes and one-week turnarounds are common, which matters if a basement is actively taking on water.
- Licensed and multi-certified across Ontario and Mississauga
- Same-day quotes, typically one-week turnaround
- Transparent pricing with no hidden costs
- Covers weeping tile, foundation cracks, sump pumps, and drainage
Google-verified127 Google reviewssince 1995
Services: basement renovation, emergency repair, water damage restoration service, dry wall contractor
4. Astaneh Construction
5 (118 reviews)score 92/100
Astaneh Construction turns up often in reviews for stress-free renovations that land on time and on budget, with project manager Rana keeping communication steady through the build. Basement finishes sit alongside kitchen and whole-home gut jobs in their portfolio, with vetted subcontractors treated as partners rather than outsiders.
- Honest upfront pricing with no cost overruns
- Dedicated project manager coordinates daily communication
- Vetted, respected subcontractor network
- Meets quoted timeline and budget consistently
Google-verified118 Google reviewsEstablished in 2013
Services: kitchen renovation, bathroom renovation, basement renovation, home additions
5. JP Lucky Construction And Roofing
4.9 (148 reviews)score 92/100
JP Lucky covers basement gutters through to full house renovation, and reviewers keep pointing to speed: projects moving from quote to finish in days rather than weeks, with Wendy handling communication and crews showing up on schedule. Post-project issues get a response within hours, with no upsell pressure attached.
- Projects often complete in days, not weeks
- Wendy's responsive phone and email support
- No hidden costs or scope creep reported
- Fast, no-charge response to post-project issues
Google-verified148 Google reviewsestablished in 2000
Services: kitchen renovation, basement renovation, home additions, whole home renovation
6. Smart Renovations
4.9 (136 reviews)score 92/100
Smart Renovations stands out for letting clients see the basement before it's built, using 3D rendering software alongside tiered quotes so budget decisions happen up front. Tina's hands-on oversight and daily group-chat updates from crews like Winston, Eric, and Kosta back up a strong repeat-client pattern.
- Free 3D design renderings before build starts
- Owner-led quality checks throughout the project
- Tiered pricing options presented at quote stage
- Daily group-chat updates with progress photos
Watch out: One reviewer flagged a minor post-install design error, resolved quickly.
Google-verified136 Google reviews
Services: kitchen renovation, bathroom renovation, basement renovation, home additions
7. HandyBros | Home Renovations & General Contracting
4.9 (151 reviews)score 91/100
HandyBros gets called on specifically to finish work other contractors walked away from, and named staff like Rob, Yi, Gabe, Ron, and Eddie earn consistent praise for staying transparent on cost across kitchens, bathrooms, and basements. Confidence sits at medium given the review volume, but the sentiment is uniformly strong.
- Clear, consistent daily communication
- Transparent quotes with no scope surprises
- Willing to take over projects abandoned by others
- Fast turnaround on basement renovation work
Google-verified151 Google reviews
Services: kitchen renovation, home additions, emergency repair, flooring contractor
8. Aquamaster Basement Waterproofing Toronto
4.9 (281 reviews)score 91/100
Aquamaster leads with inspection before any sales pitch, with named inspectors like Roman, Albert, and Kevin walking homeowners through the actual cause of leaks rather than pushing unnecessary work. With 281 reviews and licensed Master Plumber credentials, this is one of the deeper track records on this list for keeping basements dry long-term.
- Thorough diagnosis before any work is proposed
- Licensed Master Plumber and Plumbing Contractor credentials
- Published rates for crawlspace and waterproofing work
- Named technicians document multi-phase projects with photos
Watch out: One reviewer reported cancelled appointments without explanation.
Google-verified281 Google reviewssince 2009
Services: basement renovation, home additions, emergency repair, tile contractor
9. GMC Construction Inc.
5 (85 reviews)score 91/100
GMC Construction handles everything from a hidden-wire TV mount to full renovations with the same attention, and every recent review is five-star. Max personally runs projects, which reviewers credit for the problem-solving that happens without being asked.
- Hands-on ownership on every project
- Transparent pricing with no surprises
- Comfortable across residential and commercial scopes
- Solves problems beyond the original scope
Watch out: Fewer reviews than some others here (85), though sentiment is consistently strong.
Google-verified85 Google reviews15+ years in the GTA
Services: home additions, interior construction contractor, kitchen renovation, whole home renovation
10. East Home Renovation Inc. 东财建筑装修
5 (79 reviews)score 91/100
East Home Renovation's basement and bathroom jobs get singled out for precision and modern finishes, and owners Summer and Arno along with crew lead Lao Liu carry a perfect five-star record across 79 reviews. Their site lists unfinished basement renovation pricing directly, and one client reported the team returning six years later to fix an unrelated issue without hesitation.
- Perfect five-star track record across all reviews
- Structural expertise: load-bearing walls, levelling uneven floors
- WSIB coverage and $5 million commercial insurance
- Long-term accountability, including years-later follow-up
Google-verified79 Google reviewssince 2015
Services: home additions, emergency repair, kitchen renovation, bathroom renovation
11. Masterpiece Renovation
5 (81 reviews)score 91/100
Ali's reputation carries weight partly because other tradespeople vouch for him directly in reviews, and he applies the same care to a doorknob repair as to a full basement build. Projects finish on or ahead of schedule and within budget, with urgent issues getting immediate attention.
- Owner personally manages projects and communication
- Consistent on-time, on-budget delivery
- Responsive to urgent repair requests
- Referrals from other trade professionals
Google-verified81 Google reviews
Services: kitchen renovation, home additions, custom carpentry finishing, emergency repair
12. Eastern Western Construction Design & Build Toronto
5 (71 reviews)score 90/100
Eastern Western Construction carries a 100% five-star rating across 71 reviews, with Yannis named for combining technical skill with clean, respectful work in client homes. Basement work sits alongside room additions, drywall, and attic insulation in a portfolio reviewers describe as consistently on schedule.
- 100% five-star rating across all reviews
- On-time, on-budget delivery reported consistently
- Meticulous finishing and detail work
- Clean, organized worksites
Google-verified71 Google reviews
Services: kitchen renovation, bathroom renovation, basement renovation, home additions
13. 3M Renovations Inc.
5 (75 reviews)score 90/100
Michael runs 3M Renovations hands-on, and reviewers describe swift, organized work across basement, bathroom, and kitchen jobs that lands within quoted timelines and budgets. Confidence is medium given review volume, but the sentiment pattern is uniformly positive.
- Owner-led and hands-on throughout
- Consistent on-time, on-budget delivery
- Clean, organized job sites
- Responsive communication from quote onward
Google-verified75 Google reviews
Services: kitchen renovation, basement renovation, home additions, custom carpentry finishing
14. Desa Contracting and Restoration
4.9 (92 reviews)score 90/100
Desa Contracting is the one to call when a basement has already flooded rather than just needs finishing: staff respond fast to emergencies and manage restoration around insurance timelines. Named team members like Ismael, Araceli, and Hasan deliver polished drywall and ceiling repairs once the water's gone.
- Rapid emergency response
- IICRC certified
- Hands-on project management by named staff
- Handles insurance coordination directly
Watch out: Better suited to restoration-driven basement repair than ground-up finishing design.
Google-verified92 Google reviewsover 10 years
Services: water damage restoration service, drainage service, waterproofing service, kitchen renovation
15. Summit Contractors
5 (71 reviews)score 90/100
Summit Contractors has run three straight years of all five-star reviews, with Arash coordinating trades from kitchen designers to electricians on jobs that include structural work like steel beams and load-bearing wall removal. Confidence is medium on review count, but the consistency across three years stands out.
- Arash leads projects end-to-end with accurate timelines
- Skilled coordination across multiple trades
- No cost surprises, even with add-ons
- Proven on complex structural jobs
Watch out: Review volume (71) is on the lower end for this list.
Google-verified71 Google reviewssince 2005
Services: home additions, emergency repair, flooring contractor, interior construction contractor
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FAQ
- How much does basement waterproofing or finishing cost in the GTA?
- It varies a lot by scope. Waterproofing alone tends to run by linear or square foot (one contractor on this list publishes rates around $80-$100 per linear foot for exterior/interior waterproofing and $30 per square foot for crawlspace encapsulation, with sump pump systems starting near $700). A full basement finish including framing, drywall, flooring, and electrical is a separate quote entirely; one full-service contractor here lists unfinished basement renovation starting around $44.99 per square foot. Get itemized quotes so you know which part of the job you're actually paying for.
- Should I fix water issues before finishing a basement?
- Yes. Finishing over an active leak or moisture problem just hides it until it damages drywall, flooring, and framing later. If there's any history of dampness, get a waterproofing inspection first (several contractors on this list specialize in exactly that diagnosis) before hiring a finishing crew.
- What should I ask a basement contractor before booking?
- Ask whether the quote is fixed or has allowances that could change, who's actually on site day to day (not just who signs the contract), how they handle permits for egress windows or plumbing rough-ins, and what warranty covers the waterproofing or structural work specifically. Ask for photos of a similar recent job in your neighborhood if possible.
- Is a general renovation contractor or a waterproofing specialist the right call for my basement?
- If the basement is dry and you just need it finished (framing, drywall, flooring, a bathroom), a full-service renovation contractor is the simpler route since they'll coordinate all the trades. If there's any sign of water intrusion, cracking, or a musty smell, start with a waterproofing specialist to diagnose and fix that first, then bring in a finishing contractor once it's confirmed dry.
Guides before you choose
- What to expect when you finish a basement, step by step
How a GTA basement finishing project actually unfolds, from the first inspection to final trim, and how long each stage typically takes.