Waterproofing covers the membranes, coatings, and detailing that keep water out of a roof assembly, not just the shingles or cap sheet on top. In Toronto this usually means torch-on or self-adhered membranes on flat and low-slope roofs, liquid-applied coatings on balconies and decks, foundation and below-grade waterproofing tied into roof drainage, and the flashing work around parapets, chimneys, vents, and roof-to-wall joints where most leaks actually start. The 46 businesses listed in this category range from small crews that specialize in flat roof membranes to larger firms that also handle foundation and deck waterproofing as part of a full building envelope job.
When you're comparing contractors, ask what system they're proposing (torch-applied modified bitumen, self-adhered membrane, EPDM, or a liquid coating) and why it fits your roof type. Get specifics on membrane thickness, number of plies, and manufacturer warranty length, since these vary a lot between a patch job and a proper re-membrane. Check that the quote includes flashing details, drain and scupper work, and any tapered insulation needed to fix ponding water, not just membrane square footage. Ask how they handle winter or wet-weather work if your job is time-sensitive, and whether they pull permits when the scope requires it.
Our scoring weighs verified customer feedback, how consistently a contractor responds and follows through, licensing and insurance signals, and how long they've been doing waterproofing work specifically in the Toronto market. See the full ranked guide to Toronto roofing contractors for how these 46 stack up, and read our methodology for exactly how the scores are built.
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46 businesses, scored on recent reviews. The order weighs each business's overall score by how much of its reviewed work is waterproofing service, so a lower-scored specialist can rank above a higher-scored generalist.
Technical crews arrive quickly and perform competent, thorough water damage and mold work with respect for the home. Office coordination frequently breaks down: estimates balloon to two or three times the quoted amount, travel time is added without upfront disclosure, and scope gaps leave customers feeling misled or unfinished.
All eight reviews award five stars. Work ranges from emergency roof leaks to chimney rebuilds, foundation repairs, and basement waterproofing, with reviewers noting quick response times and professional diagnosis. Repeat praise for stopping water intrusion problems and completing jobs before seasonal deadlines.
JP Lucky Construction finishes projects in one or two days and shows up next-day when issues arise. Wendy handles scheduling and questions personally; staff walk the job after, fix problems proactively, and leave sites spotless. Reviewers praise honest pricing, no upselling, and detail work on both structure and finish. Teams include James (inspector), Nic, Andy, and other crew members. Work spans roofs, eavestroughs, gutters, siding, additions, and full renovations.
Joe's team handles flat roof replacements and complex multi-roof projects with consistent polish: clear estimates, on-time completion, and site cleanup are routine. Lukasz, George, Mark, and crew members earn specific praise for technical mastery, even on tricky jobs like steep-pitched or century-old homes. One recent one-star review alleges destruction, but the volume of detailed five-star accounts documenting before/after photos, drone documentation, and referrals from other tradespeople suggests this is an outlier. The standout is their communication: estimates are itemized, reasons for work are explained in writing, and they share photos clients cannot verify themselves. Customers note they are not the cheapest option but emphasize value and longevity. Multiple reviews highlight willingness to go beyond the job scope (measuring in rain, tidying neighbors' yards, offering skylight upgrades) without prompting.
Shawn and his team resolve roof emergencies with genuine speed. Reviewers consistently report response times of under an hour for urgent calls, honest problem diagnosis over the phone, and same-day or next-day repairs that hold up through storms. Work spans leak detection, shingle replacement, vent protection against wildlife damage, gutter unclogging, and flashing repair. Pricing lands fairly within market range, and customers return repeatedly because the fixes stick and communication never falters. No complaints surface across the review sample.
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All reviewers report flawless flat roof work, from emergency repairs to full tear-off replacements. Denys and his team consistently finish on time, communicate clearly before and during projects, handle structural issues like rotted joists, and test work under heavy rain to confirm it holds. The crew arrives clean, leaves clean, and provides photographs and warranties that stand behind the job. Staff members Denys, Peter, David, and Oleksii are named repeatedly for responsiveness, technical knowledge, and problem-solving under tough conditions. Reviewers specifically praise the transparent quotes, fair pricing despite being mid-market rather than cheapest, and the 10-year warranty offered on installations. Whether tackling garage leaks, 5,000 square foot commercial roofs, or ponding issues, this team delivers consistent quality without upselling.
Reviewers consistently report fast emergency response, same-day repairs for pooling water and leaks, and fair pricing on both emergency and planned work. Flat roof skylight replacement is their signature service: crews show up on schedule, complete work cleanly within the quoted timeframe, and provide proper waterproofing that holds through Toronto winters. Staff are straightforward about what went wrong with previous repairs and exactly what the fix will cost. Photos are provided before and after. Clean-up happens reliably. One reviewer found a previous contractor's failed patch and chose Flat Roofs Toronto to redo it correctly, with no leaks eight months and one winter later.
Nuno and his team deliver what they promise, with fast response times and transparent communication that customers trust immediately. Over a decade of repeat clients speak to honest pricing, emergency availability, and meticulous workmanship that solves complex leaks other roofers miss. Metal roof installations, roof repairs, and leak diagnostics show the same pattern: crews show up on time, clean after themselves, and explain options clearly. The company's 30-year track record and liability insurance matter less than the personal reputation Nuno has built-reviewers call back because he listens and fixes the root cause.
Premier Choice Roofing handled emergency leaks within 12 hours, completed standard roof replacements in one day, and maintained transparent pricing throughout. Staff named in reviews (Peter, Jake, David) earned praise for honesty and flexibility; customers verified fixes work after rain and appreciate the team's willingness to adapt to budget constraints. The business covers roof repair, replacement, chimney flashing, ridge venting, and valley maintenance. All 16 reviewers rated work excellent, with consistent notes on professionalism, site cleanliness, and on-time delivery. No complaints appear in the review set.
Luke and his team consistently earn praise for speed: same-day or next-day assessments, quick repairs, and efficient roof replacements. They explain work clearly, answer questions patiently, and adapt to budget constraints. The crew cleans thoroughly, stands by their work with warranty, and handle emergency situations like ice damming and water penetration with follow-up visits to confirm the fix holds. Work spans roof shingles and plywood, downspouts, ice removal, chimney leaks, and vent installation. Reviewers single out Luke Connors by name across multiple jobs. One reviewer noted a longer timeline for replacement post-storm (due to volume), but appreciated the interim tarp coverage and persistent communication. All rated work professional and neat.
Parkdale Roofing moves fast and leaves the site spotless. Across 42 reviews, customers praise the crew's professionalism, punctuality, and friendliness, with multiple mentions of staff names (Billy, John, Robin) who impressed them. They fix leaks and damaged roofs after storms, often on tight timelines or holidays. Pricing comes up repeatedly as competitive or better than quotes elsewhere. The company handles roof repairs and replacements, gutters, chimney work, and various construction services listed on their website. Every recent review gives five stars, citing efficient work, transparent communication, and clean finishing. No material complaints surfaced.
From initial inspection through cleanup, customers experience a team that communicates clearly, shows up on time, and finishes jobs to high standards. Marc and Richard lead crews who use quality materials, handle emergency calls on short notice, and treat clients with genuine respect both on and off the job site.
Reviewers consistently describe a straightforward experience: sales staff explain options plainly without pushing, crews arrive on time and finish the job to a high standard, then clean up meticulously. Named staff (Apostolis, Daniel, Mimi, Victor, Oscar, Tolis, Domenic) appear repeatedly, with customers praising their responsiveness and honesty about pricing and repair scope. Flat roof replacements and shingle removals dominate the recent feedback, and multiple reviewers note they were quoted by competing contractors and chose Alpine for value rather than lowest price. The standout detail is trust built across generations: one family has used Alpine for over 15 years and credits the company with fixing a roof destroyed by a negligent competitor. Payment-after-completion terms, ice and water shield upgrades on request, and willingness to help customers evaluate other quotes distinguish the approach here. No significant complaints appear in the recent reviews.
Alex, Gael and their crews handle eavestrough, roofing and siding jobs with speed and precision. Reviewers consistently report same-day or next-week booking, on-time arrival, thorough cleanup, and warranty clarity. Work spans ice dam removal, gutter replacement, fascia repair and full roof/exterior overhauls across Toronto and the GTA. Quality shows in the details: ice dams fixed with heating cables, gutters rerouted to spec, material reuse to cut costs, and follow-up communication after seasonal tests. Pricing draws repeated praise as fair and honest. Staff handle emergency roof damage and winter snow load issues confidently, and reviewers name Alex and Gael as go-to technicians they return to.
Rosedale's 30 reviews are uniformly five-star. Homeowners consistently praise fair pricing, quick repairs, and the professional conduct of Scott's team. Work spans roof replacements, shingle and flat roof jobs, chimney renovations, gutter replacements, and basement waterproofing, with several customers highlighting both speed and affordability. Reviewers report no delays or quality issues across residential roof and siding projects in downtown Toronto, North York, and surrounding areas. The business handles emergency leaks, preventative maintenance, and full renovations. Staff are described as friendly and hardworking throughout.
Crews finish jobs promptly, handle homes with care, and clean thoroughly afterward. Reviewers consistently report strong craftsmanship, reasonable costs, and staff who walk them through the work step by step. Alan, Oliver, David, and Jimmy are named for their professionalism and friendliness on site. New roofs pass heavy rain tests within days. Flat roof installations complete in a single day. Repair work on older structures restores function without disruption. The team treats customer property as their own and communicates clearly from quote through completion.
All 25 reviews award five stars. Customers consistently praise John's crew for arriving on schedule, working efficiently in tough conditions, and leaving sites spotless-reviewers mention nail sweeps and rubbish clearance by name. Multiple reviews flag transparent quoting, quick responses to emergencies (one porch leak repair on a day off), and repair quality that holds up long-term; one homeowner noted their roof was still performing well a year after installation. Work spans flat roofs, shingles, chimney removal, attic insulation, and leak repair across the East GTA. Reviewers describe the team as professional, courteous, and hardworking; several mention being referred by friends or coworkers. One detailed five-star noted upfront quoting with zero hidden fees and immaculate attention to flashing detail. No complaints surface in the review pool.
From start to finish, customers encounter a team that shows up on time and executes roof work with visible skill. Reviewers consistently praise how the crew explains the job clearly, maintains a clean site, and leaves properties spotless when done. Named technicians Alex and Peter feature prominently in positive feedback. Work ranges from full roof replacement to shingle repair, metal roof work, eavestroughs, fascia, soffit, waterproofing, steps, and tuck pointing, with reviewers noting high standards across each service type.
All 20 reviews rank this business at five stars. Customers consistently report on-time arrivals, tidy work sites, and skilled execution across roof repairs, new installations, and chimney work. James and his team appear in multiple testimonials by name, with praise for courteous service and reasonable pricing that matches the quality delivered. Work includes shingle repairs, roof replacements, leak fixes, and chimney repairs in the Toronto and Greater Toronto Area. Reviewers highlight professional communication, efficient completion, and clean-up as standard practice. No complaints or service issues surface in the feedback.
Most reviewers praise quick scheduling, fair pricing, and professional crew performance. Named technicians like Carlos, Chris, and Christian consistently earn trust through clear communication and efficient work. However, a detailed complaint documents repeated flat roof leaks and abandoned warranty service, with the owner promising fixes that never materialized after three weeks. Strong points emerge in emergency response and crew reliability for new jobs, particularly with drone inspections and same-day estimates. Concerns centre on long-term durability of flat roof installations and post-warranty support accountability when problems arise.
Altivara's crew delivers roof repairs and replacements with speed and attention to detail. Josh and his team keep budgets realistic, show up on time, communicate clearly, and leave sites spotless. Reviewers consistently praise fair pricing against other contractors' quotes and reliable, professional workmanship.
Most reviewers praise Genesis for skilled technicians like Wes, Evan, and Ken who communicate clearly, explain problems well, and finish jobs neatly. Staff send photos and answer questions during work, and quotes are detailed with no surprises. However, a handful of longer-term customers report delayed follow-ups on roof issues and one recent roof replacement leaked within months, with the company refusing warranty coverage. Repeat customers mention uneven service quality as jobs pile up.
Platinum Toronto Roofing Contractors has earned a perfect 5-star rating across 21 reviews, with customers consistently praising their speed, professionalism, and attention to detail. Multiple jobs completed in one day, team leader Nickles regularly mentioned for reliability and integrity. Fair quotes delivered on time, work quality evident, property cared for throughout, cleanup thorough, and customers note feeling confident they won't worry about the job. Crew demonstrates both residential and commercial expertise with full roof replacements, repairs, guttering, soffit, and fascia work. Customers report receiving 50-year warranty on work. Hailstorm damage repairs and post-purchase house preparation handled smoothly. Communication marked as clear and honest from estimate through completion.
Get quotes from suitable waterproofing service in Toronto
No cost, no obligation. Describe your roofing project and we'll match you with contractors who can help.
Seven years of repeat customers and recent clients all report the same thing: reliable work at fair prices, professional crew who show up on time and explain everything. Waterproofing, chimney repairs, full roof replacements, and gutter fixes get consistent praise for quality and cleanup; one customer's small repair was even done free as a courtesy.
All 10 reviews are five-star. Customers consistently praise Square Roofing for fast emergency response, clear communication, and site cleanup. Named crew members Alberto and Paola earn specific mention for professionalism, return visits to perfect work, and willingness to address concerns after the job ends.
All ten reviews rate Kingswood five stars. Customers praise roof installations, repairs, and skylights completed quickly, with one job done in a single day. John and his crew handle follow-up work promptly, including rodent damage three years after the original roof, building confidence in their ongoing support.
Most clients experience reliable, friendly service with attention to detail and effective cleanup, backed by staff like Amanda and Nitin who engage well before and after jobs. A small group report frustration with missed appointments, opaque pricing on roof inspections and gutter work, and subcontractor performance, though the company acknowledges oversights and many customers return year after year.
All six reviews are five-star. Reviewers consistently praise Tony's team for finishing work on schedule, leaving properties tidy, and offering hands-on guidance on materials like interlocking colours and patterns. Decking, driveways, waterproofing, and window wells are mentioned with equal satisfaction.
Most jobs get done well and on time, with crews known for clean sites and explaining their work clearly. Roof leaks, shingle repairs, siding, and eavestrough work are handled with care. Watch for communication gaps on initial contact and occasional site management lapses with neighbours and access.
Most reviews praise RoofCraft's speed, team attitude, and work on flat roofs and gutters. One recent complaint stands out: a $16,000 flat roof installation developed leaks within two months and warranty support went unanswered despite multiple requests, with the homeowner now filing formal complaints.
Every review praises the team's friendliness and work quality. Customers note fair prices, cleanup, and the crew's willingness to work within budget constraints.
Most jobs go smoothly with attentive crews and solid craftsmanship, but at least one recent chimney and waterproofing project failed immediately, and the homeowner couldn't reach the business to address it. Mike is mentioned positively by name in multiple reviews.
Roofworks delivers solid workmanship and professional crews on jobs that go forward, with fair pricing and strong warranty support. However, some customers report missed appointments, slow callbacks, and contract disputes over what's included, particularly with gutter add-ons.
Five-star reviews praise quick, tidy work and professional teams. However, multiple recent complaints describe tactics that exploit elderly clients: low initial quotes that jump tens of thousands mid-job, cash-only demands, no-shows on promised follow-up, ghosting after disputes, and refusal to provide itemized invoices or warranty papers. One client's mother was charged $29,000 for subcontracted work worth $12,000, and Edward (a key contact) later ghosted despite promising a $5,000 refund and documentation. Another elderly mother was told only cash accepted, charged $3,000 for work never completed, and phone lines now hang up. This divide is not about skill but about business practices. Straightforward jobs from established contacts deliver clean, timely results. Jobs involving price revision, elderly clients, or payment disputes show a pattern of unfulfilled promises and disappearing act once money changes hands.
Four of five recent reviews praise fast work, fair prices, and attentive crew communication. One long-standing complaint about unsolicited faxes. Review volume is modest but rating significantly lags category average.
Tim and his crew earn steady praise for friendly service, fair pricing, and solid workmanship on roof replacements and repairs. Yet a split in ratings reflects real concerns: some customers praise speedy follow-up years later; others report leaks that reappear, promised repairs that cost extra, and damage to neighbours' gardens that the owner downplayed. Cleanup inconsistency and the owner's handling of disputes are recurring friction points.
All five available reviews rate Youbility 5 stars. Reviewers highlight professional staff, well-organized execution from start to finish, and competitive pricing. Work is completed on time and often exceeds stated scope.
Upright Roofing & Construction holds a 4.6 rating across 20 Google reviews. A detailed sentiment read was not produced on this pass, so the placement rests on rating consistency and volume.
Positive reviews praise quick diagnosis and lasting repairs at fair prices; however, a detailed complaint alleges high-pressure sales tactics, inflated repair quotes exceeding $100,000, fake website content, and aggressive collection calls after customers sought second opinions.
Three recent jobs went smoothly, with staff praised for speed, cleanliness, and fair rates. One roof replacement failed to stop a skylight leak, and the owner went weeks unable to reach anyone or get a receipt or warranty paperwork.
Both five-star reviews from a decade ago praise quick, friendly service and solid workmanship. One customer highlighted their response to flood damage. Review evidence is limited.
Not enough recent reviews yet to synthesise a reliable sentiment read for this business.
Not enough recent reviews yet to synthesise a reliable sentiment read for this business.
Review evidence is limited for this listing. The business operates 7 days a week in Old Toronto and lists a broad service menu on its website, including roof repair and replacement, gutters, chimneys, siding, and basement waterproofing across Toronto and the GTA.
Not enough recent reviews yet to synthesise a reliable sentiment read for this business.
Not enough recent reviews yet to synthesise a reliable sentiment read for this business.
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Last updated 2026-08-25