About RCC
RCC Waterproofing Markham proudly extends its award-winning waterproofing services to homeowners across Markham. From Unionville to Cornell and Milliken, families trust us to handle everything from basement leaks to foundation repair with unmatched expertise. As the oldest waterproofing company in Canada, RCC brings decades of proven results to every waterproofing project. We remain committed to being the best waterproofing company in Markham by providing reliable, long-term moisture control solutions. Choosing RCC means you’re working with an experienced partner dedicated to protecting your home and ensuring your basement stays dry, secure, and healthy for years to come.
Read MoreThe best waterproofing team in the business
Homeowners in Markham turn to us for reliable waterproofing and foundation protection because we understand the challenges of urban development and older neighbourhood homes. Our specialists deliver thorough basement leak repairs, exterior and interior waterproofing solutions, and customized drainage systems. We emphasize both modern technology and time-tested methods, ensuring water stays out while maintaining your property’s structural integrity. By addressing problems at the source—whether cracks, poor grading, or hydrostatic pressure—we help Markham families enjoy dry, usable basements and safeguard the investment they’ve made in their homes for years to come.
Meet Our TeamRCC Waterproofing Markham
Secure your Markham property with RCC Waterproofing’s expert waterproofing services. Our specialists tackle all foundation types, from older homes to modern builds, with precision and care. By using premium materials and proven techniques, we guarantee long-lasting results. Homeowners can trust our transparent waterproofing costs, knowing RCC Waterproofing delivers superior protection, enhances property value, and ensures a dry, safe basement for years to come.
Markham homeowners face basement moisture challenges due to clay-rich soils and seasonal rainfall patterns. Our professional basement waterproofing solutions help safeguard homes against water intrusion, foundation damage, and damp conditions. By combining advanced techniques with a deep understanding of local terrain, we ensure your basement stays dry year-round, protecting both your property’s value and the comfort of your living space.
$50 - $300+ per linear ft.
Protect your Markham home from water damage with our expert basement leak repair services. Our technicians identify hidden leak sources, fix foundation concerns, and install durable waterproofing solutions to prevent recurring issues. By addressing both the symptoms and root causes of moisture intrusion, we safeguard your property’s value, enhance indoor comfort, and maintain a healthy environment. Count on us to keep your basement dry year-round, no matter Markham’s weather challenges.
$50 - $300+ per linear ft.
Our exterior waterproofing solutions in Markham are tailored to its clay-rich soil and frequent rainfall patterns. By installing a durable waterproof barrier, we protect homes from water infiltration, freeze-thaw cycles, and seasonal temperature swings. This method ensures long-lasting defense against moisture-related damage while maintaining structural integrity, offering homeowners peace of mind throughout Markham’s humid summers and cold, snowy winters.
$50 - $300+ per linear ft.
Markham homeowners facing persistent basement dampness can rely on our interior waterproofing solutions tailored to the city’s soil and seasonal moisture patterns. Our team tackles mold growth, water seepage, and condensation issues common in Markham’s urban neighborhoods, ensuring your basement stays dry year-round. By addressing both visible leaks and underlying causes, we protect your home’s structure and create a healthier indoor environment.
$50 - $100 per linear ft.
Markham homes often experience seasonal water buildup due to the city’s clay-rich soils and frequent spring showers. Our advanced sump pump solutions efficiently channel excess groundwater away from basements, preventing flooding and foundation damage. Designed for Markham’s unique drainage challenges, these systems offer homeowners reliable protection, ensuring dry, safe living spaces even during heavy rainfall or rapid snowmelt events.
$500 - $3000
Enhance your Markham property by creating a spacious, lowered basement through expert underpinning. Our method carefully considers local soil conditions, allowing you to expand your living space safely while strengthening your home’s foundation. With our professional approach, you gain a more functional basement area and long-term structural stability, boosting both comfort and property value in Markham’s residential neighborhoods.
$300 - $500 per square ft.
Markham homeowners face seasonal shifts that can cause concrete foundations to weaken over time. Investing in waterproofing foundation cracks protects your home from moisture intrusion while reinforcing structural stability. This preventive measure not only safeguards your property’s value but also ensures a dry, safe basement year-round, giving you peace of mind against costly repairs caused by water damage or foundation deterioration.
$50 - $650
$50 - $650
In Markham’s rapidly growing neighborhoods, our New Construction Waterproofing safeguards modern builds against unpredictable soil moisture and seasonal rainfall. Tailored for both residential and commercial projects, our solutions provide long-term protection, ensuring foundations remain dry and resilient. By integrating advanced waterproofing technology during construction, we help developers prevent costly water damage while enhancing the structural longevity and value of every new property in Markham.
$2.75 - $4 per square ft.
In Markham, fluctuating weather and high humidity can cause crawl spaces to become damp and prone to mold. Our expert Crawl Space Encapsulation services install a durable vapor barrier that blocks moisture, enhances air quality, and safeguards your home’s foundation. By addressing the root of humidity issues, we help homeowners maintain a healthier, more stable environment beneath their floors throughout Markham’s seasonal climate changes.
$7 per square ft.
Markham’s mix of clay and sandy soils creates uneven pressure on building foundations. Our expert Foundation Structural Repair services are tailored to address these challenges, reinforcing structures against shifting and settling. By analyzing soil patterns and stress points unique to the area, we provide durable, long-term solutions that safeguard homes and commercial buildings alike from costly structural damage and future foundation concerns.
Foundation Structural Repair Markham homeowners facing a flooding basement can rely on our experienced team for rapid intervention. With unpredictable rainfall patterns in the region, we specialize in preventing extensive water damage and safeguarding your property. Our dedicated crew quickly identifies leak sources and implements effective solutions, ensuring that your home stays dry and protected during even the most severe storms.
$1000 - $100,000 per size of job
Markham’s humid summers and aging residential foundations can create hidden moisture pockets that encourage mould growth. Our professional Basement Mould Removal team tackles these problems head-on, removing stubborn mould and treating surfaces to stop recurrence. By addressing both the root causes and visible signs, we help preserve your home’s structure, enhance indoor air quality, and protect your family’s health from the hazards of persistent basement mould.
$1000 - $100,000 per size of job
RCC Waterproofing News
RCC has been featured in many news articles, interviews and television appearances over the years, across news outlets from Toronto, Markham, Hamilton and more. News sources trust RCC Waterproofing to provide the information customers need to know about waterproofing solutions.
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CTV News Toronto Interviews RCC Waterproofing to find out how busy the company is during the Spring season and how homeowners all over Ontario can spot situations that may lead to basement floods.
Watch News RCC Waterproofing speaks to Breakfast Television on CityTV Toronto about protecting your foundation from flood damage when the spring thaw creates pools of water around your home.
Watch News RCC Waterproofing speaks to City News Toronto to provide home waterproofing tips and let homeowners know how the Spring Thaw could cause basement leaks and other types of foundation damage.
Watch News RCC Waterproofing is featured on three episodes of Holmes and Holmes where the crew is waterproofing the exterior and interior of Mike Holmes Jr’s house. Watch one of the episodes here where RCC’s own Anthony Parolin recommends waterproofing his foundation from the outside of the house.
Watch News RCC Waterproofing tells City News Toronto about how many waterproofing jobs the company has done this Spring season in places like Mississauga, Scarborough, Etobicoke and all over the Greater Toronto Area.
Watch News CHCH talks to RCC Waterproofing about the aftermath of the Stoney Creek Storm near Hamilton and how homeowners can prevent basement floods by stopping water from coming through their foundation and into their houses.
Watch News Toronto braces for possible flooding amid a multi-day storm. The Globe and Mail speaks to RCC Waterproofing’s President Tony Romanelli about how RCC has been receiving 500 calls a day from homeowners in Toronto, Mississauga, Scarborough and all of Ontario thanks to storms causing basement floods.
Watch News The Toronto Star interviews Tony Romanelli from RCC Waterproofing who asks readers “Is your basement waterproofed?” and tells residents and homeowners the likelihood of exterior foundation leaks and how to hire the right waterproofers for the job.
Watch News The Toronto Sun interviewed RCC Waterproofing to find out how homeowners can protect their basement from winter water damage and make changes around the house and foundation to prevent your basement from water leaks.
Watch News RCC Waterproofing speaks to Breakfast Television on CityTV Toronto about protecting your foundation from flood damage when the spring thaw creates pools of water around your home.
Watch News Tony Romanelli of RCC Waterproofing speaks to CP24 News about donating a truckload of 5000 toys to families this holiday season.
Watch NewsMarkham Waterproofing Cost
The price of basement waterproofing in Markham varies based on your home’s design, the severity of water intrusion, and the method used. Homeowners can use this cost guide to estimate expenses and prepare for professional solutions that ensure a dry, secure, and long-lasting basement.
| Waterproofing Method | Estimated Cost (Per Linear Foot) | Best For | Details |
|---|---|---|---|
| Exterior Waterproofing | $50 – $300+ | Severe leaks, accessible foundation walls | Most durable solution; requires excavation. |
| Interior Waterproofing | $50 – $100 | Finished basements, less invasive options | Installs from inside; ideal when excavation isn’t possible. |
| Foundation Crack Injection | $50 – $650 (per crack) | Single vertical cracks | Quick, non-invasive solution for poured concrete walls. |
| Sump Pump Installation | $500 – $3,000 (flat rate) | Water-prone areas or active leaks | Often paired with interior drainage systems. |
| Weeping Tile Replacement | $100 – $250+ | Poor drainage or clogged systems | Improves water flow away from your home’s foundation. |
Why Choose Us
Award-winning RCC Waterproofing provides unmatched waterproofing services and expert workmanship across Markham and Southern Ontario. Find out why homeowners consistently select the best waterproofing company in Markham for all their waterproofing projects.
In Markham, our specialists deliver comprehensive basement waterproofing services designed to protect your home from water damage. We carefully pinpoint leak sources, perform precision foundation repairs, and install reliable moisture control solutions. Homeowners can trust our skilled team to maintain a dry, secure basement while preserving the structural integrity of their property. We focus on lasting results that prevent future water issues.
Homeowners in Markham can expect a thorough and precise written estimate from our skilled team before any waterproofing work begins. We focus on delivering dependable and affordable basement waterproofing and foundation repair services that protect your Markham property from water damage, seepage, and structural issues, ensuring your home remains safe, dry, and durable against the challenges of Ontario’s wet seasons.
In Markham, our team is renowned for delivering top-tier waterproofing solutions with unmatched precision. Homeowners frequently share their experiences on platforms like HomeStars and Trusted Pros, showcasing our commitment to excellence. Explore our customer reviews to see firsthand how we protect basements from water damage and provide long-lasting results that keep homes dry, safe, and worry-free throughout the seasons.
In Markham, our team delivers top-quality basement waterproofing and foundation repair at competitive rates. Homeowners can rely on our skilled professionals to address leaks and cracks with precision, using methods built to last. Every service we provide is backed by a lifetime warranty, ensuring your home remains safe, dry, and structurally sound for years to come—giving you unmatched confidence and peace of mind.
In Markham, our team of waterproofing experts has safeguarded thousands of homes against water damage, providing superior foundation repair and basement waterproofing solutions. With years of hands-on experience, we address both visible leaks and underlying structural issues, ensuring lasting protection. Homeowners trust us for reliable, high-quality service that keeps their basements dry, maintains property value, and creates a safer, healthier living environment in every season.
In Markham, homeowners rely on us for full-scale basement waterproofing that stops leaks before they escalate. Our certified team combines proven techniques with innovative solutions to safeguard your foundation from moisture intrusion. From identifying hidden vulnerabilities to applying long-lasting waterproofing methods, we ensure your home remains dry, protected, and structurally sound throughout the year, giving you peace of mind in any weather.
Protect your Markham home from costly water damage with our professional basement waterproofing solutions. Every project comes with a written lifetime warranty, giving you complete peace of mind that your foundation is safeguarded against moisture, leaks, and structural damage. Our experienced team uses advanced techniques to ensure lasting results, keeping your home dry, secure, and structurally sound for years to come.
In Markham, we safeguard your home using advanced waterproofing systems designed for lasting performance. Our expert team applies top-tier solutions to prevent water intrusion, ensuring your basement remains dry and your foundation stable. With a focus on both reliability and durability, we provide homeowners with peace of mind, protecting your property’s value while keeping moisture and structural issues at bay throughout Markham’s changing seasons.
In Markham, our waterproofing experts are recognized for delivering reliable foundation repairs and complete basement moisture solutions. Homeowners appreciate our attentive team, organized work practices, and durable, top-tier results that protect properties year-round. From pinpointing leaks to providing long-lasting waterproofing systems, we ensure every project is handled efficiently, leaving spaces dry, safe, and structurally secure while maintaining a clean, professional work environment throughout.
waterproofing faq’s
The cost of the waterproofing job depends on a number of factors. Foundation depth, waterproofing method, and size of the job all affect the cost. To learn more about how much it costs to waterproof your home.
Learn More In 2026, RCC Waterproofing offers an in-depth look at interior waterproofing, answering common questions homeowners have about this method. Host Anthony Parolin provides a site tour of an active interior waterproofing project and answers your questions.
Learn More Waterproofing jobs typically take anywhere between a day to a week for an average job. Waterproofing job durations will vary depending on a number of factors: Type of foundation (concrete or stone), The material that must…
Learn More RCC Waterproofing is committed to our customers and the workmanship that we do on every job we go to. We offer a lifetime warranty guarantee because we are so confident in our external basement waterproofing system…
Learn More The best way to you can find out about the quality of our waterproofing services is by speaking with prior RCC customers. Often times our customers who do business with RCC will recommend our services, attest to our workmanship and let you know about our…
Learn More Flood cleanup is never fun – especially after you start tallying up the damages to your home and personal belongings. Even just an inch of water can cost you new carpet, wallboard, appliances, and furniture. If you are cleaning up after a more devastating storm with deeper flood water…
Learn MoreLocations
We handle basement waterproofing across Markham, servicing neighborhoods like Unionville, Cornell, Buttonville, Wismer, Angus Glen, and Thornhill. From minor leak repairs to comprehensive moisture protection, our team ensures homes stay dry, safeguarding property value while addressing both visible damage and underlying causes throughout this vibrant community.
Excavation & Exterior Waterproofing Job Markham on Pyneside Street
External Restoration and Waterproofing- John St, Markham
External Restoration and Waterproofing- Corby Rd, Markham
External Restoration and Waterproofing- Clark Ave E, Markham
External Waterproofing at Griffin Crt, Markham
External Waterproofing – Adrian Cr, Markham
Waterproofing and Window Well at Stanley Ln, Markham
Crack repair at Woolen Mill Rd, Markham
External Waterproofing for Conservation Av, Toronto, ON
External Waterproofing for Drakefield Rd, Markham, ON
Crack Waterproofing for Wrenwood Cr, Markham, ON
External Waterproofing for Williamson Rd, Markham, ON
External Waterproofing for Ramona Blvd, Markham, ON
Crack and External Waterproofing for Thomas Reid Rd, Markham, ON
External Waterproofing for River Bend Rd. Markham, ON
External Waterproofing for Irish Rose Dr, Markham, ON
External Waterproofing for Woodbine Av, Markham, ON
Crack Repair and Waterproofing for Helmsley Cr, Markham, ON
Window Well and Waterproofing for Walden St, Markham, ON
Crack Waterproofing for Darren Hill Tr, Markham, ON
External Waterproofing for Chichester Road, Markham ON
Crack Repair and Waterproofing for Sandham Cres, Markham, ON
External Waterproofing for Dickson Hill Road, Markham, ON
Foundation Crack Waterproofing for Orchard View Rd, Markham, ON
Joint Waterproofing for Lahore Cr, Markham, ON
Waterproofing Cracks at Bryant Rd, Markham, ON
Foundation Waterproofing for Ascot Cr, Markham, ON
External Waterproofing for Billingsley Cr, Markham, ON
Waterproofing for Coppard Av, Markham, ON
Concrete Foundation Waterproofing for Stella Dr, Markham, ON
External Waterproofing for Heritage Corners La, Markham, ON
Excavating and Internal Waterproofing for Queen’s Plate Dr, Markham, ON
Crack Repair and Waterproofing for Angus Glen Blvd, Markham, ON
Foundation Crack Repair and Waterproofing for Kings College Rd, Markham, ON
External Waterproofing for Helmsley Cr, Markham, ON
External Waterproofing for Heisey Dr, Markham, ON
Basement Waterproofing for Emeline Cr, Markham, ON
External Waterproofing for Silver Aspen Dr, Markham, ON
Crack Waterproofing for Atlantic Ave, Markham, ON
External Waterproofing for Prentice Ct, Markham, ON
Featured Markham Waterproofing Projects
Markham’s mix of historic neighborhoods and modern developments creates unique demands for basement waterproofing, and RCC Waterproofing has become the trusted name to call. From foundation crack repair to full-scale basement lowering, our team delivers tailored solutions that meet the needs of local homeowners. We consider Markham’s clay-rich soil and heavy rainfall patterns when designing systems that last. Whether safeguarding century homes near Main Street Unionville or modern builds in Cornell and Wismer, we’ve earned a reputation for quality and reliability. Discover how our Markham waterproofing projects continue to protect families and preserve home value across the community.
Reviews
Areas Served in Markham
Homeowners in Markham trust RCC Waterproofing for dependable basement protection against water intrusion, structural wear, and moisture challenges brought on by changing weather. With decades of expertise, our team applies tried-and-true waterproofing systems designed to secure homes in diverse neighbourhoods, from historic Unionville to modern Cornell and bustling Markham Village. We understand the unique soil and drainage conditions across the city and tailor solutions to each property, helping you avoid costly foundation problems. By safeguarding your home, RCC not only prevents water damage but also preserves long-term property value for families throughout Markham.
Dive into our Markham-focused waterproofing insights, tailored for homeowners navigating both historic and modern homes. Our articles cover effective basement leak repairs, advanced sump pump systems, and exterior waterproofing techniques that withstand the local weather. Learn practical strategies to keep your foundation dry and protect your property’s value, while discovering how RCC Waterproofing helps Markham residents safeguard their homes from moisture challenges year-round.
Foundation issues and basement leaks can be overwhelming, but RCC Waterproofing makes safeguarding your Markham home straightforward and affordable. We offer promotions such as 5% off waterproofing services for qualifying groups, helping homeowners fix moisture problems before they become major repairs.
Our Price Match Guarantee and flexible 0% financing options ensure you receive premium waterproofing at the best value. Every project is protected by a Transferable Lifetime Warranty, giving Markham homeowners long-term security and confidence in their foundation.
At RCC Waterproofing, seniors receive 5% off any waterproofing job to help protect the homes you’ve built. Professional waterproofing prevents basement leaks, mold, and costly damage, keeping your home safe and dry.
Learn More RCC Waterproofing proudly offers 5% off to military members who need waterproofing. Our professional waterproofing keeps your foundation dry and protected from water damage, cracks, and flooding.
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