If you’re dealing with a wet basement, leaks, or ongoing moisture issues, our waterproofing specialists can identify the cause and recommend the right interior or exterior solution before the damage spreads.
Basement water issues don’t always show obvious signs at first. Moisture intrusion, minor leaks, and damp conditions can develop gradually from interior or exterior sources. Addressing waterproofing concerns early helps prevent structural damage, unhealthy indoor environments, and costly repairs over time.

Water intrusion can occur behind walls, beneath flooring, or through foundation surfaces without immediate visibility. Interior seepage and exterior water pressure can quietly worsen basement conditions if left unaddressed. Professional basement waterproofing helps identify and stop these issues at the source.

Persistent dampness in a basement can affect indoor air quality, comfort, and usable living space. Interior waterproofing solutions help manage moisture, reduce humidity, and protect finished and unfinished basement areas from long-term damage.

Without timely waterproofing, small leaks or moisture issues can expand into more serious problems. Early evaluation allows for clearer understanding of whether interior drainage, exterior waterproofing, or combined solutions are needed to protect the basement effectively.

Below-grade construction, soil contact, and groundwater exposure make basements especially prone to water problems. Exterior waterproofing helps stop water before it reaches the foundation, while interior systems manage water that has already entered.

Ignoring wet basement conditions often leads to recurring leaks, material deterioration, and higher repair costs. Timely basement waterproofing reduces uncertainty and provides long-term protection for your home.
We provide straightforward, upfront pricing for basement waterproofing services. You’ll understand the scope of work, recommended interior or exterior solutions, and the process involved before any work begins — with no hidden costs or pressure.
Our experienced waterproofing specialists assess basement conditions carefully to identify interior moisture sources, exterior water exposure, and contributing factors. This allows us to recommend the most effective waterproofing approach for your specific situation.
With over 20 years of field experience, our team specializes in residential basement waterproofing. We focus on reliable solutions, professional installation, and clear communication to ensure your basement stays dry and protected.
Amin HamediTrustindex verifies that the original source of the review is Google. The 247-365 Restoration team responded quickly, arrived on time, and immediately took control of the situation. They were professional, well-organized, and clearly experienced in flood cleanup. Everything was explained step by step, and the cleanup was handled efficiently and carefully. A trustworthy choice for emergency water damage and flood restoration services. Sikander KanjiTrustindex verifies that the original source of the review is Google. Amazing experience, very professional, clean work, helpful and amazing crew. Tiana RoseTrustindex verifies that the original source of the review is Google. Nijen's team replaced and build a privacy wall on our back deck last Friday. They were professional, and efficient and we couldn't be happier with the end result. Thank you to Nijen and his team. We would definitely hire them again for our renovation needs and recommend them to everyone. Tiana Mathew WhiteTrustindex verifies that the original source of the review is Google. I engaged First On Site as a preferred vendor through my insurance provider following an unsatisfactory experience with another restoration company. Understandably, I approached the process with some hesitation. From the outset, the team at First On Site demonstrated exceptional professionalism. They maintained clear and consistent communication, keeping me informed of all timelines and progress updates. Their responsiveness and attention to detail far exceeded my expectations. Upon arrival, the crew began work immediately and remained focused and diligent throughout the day. Their efficiency, professionalism, and respect for my property were commendable. Additionally, the team effectively liaised with my insurance company, ensuring the scope of work was completed exactly as described and to a high standard. I would not hesitate to recommend First On Site to anyone requiring disaster management or restoration services. Their commitment to quality and client satisfaction is truly exemplary. siddharth khannaTrustindex verifies that the original source of the review is Google. I called them at 7 am for an emergency basement pipe burst leakage and they sent out a crew within a couple of hours who knew exactly what needed to be done. They documented the damage thoroughly for insurance purposes and I faced no trouble. The team at GTA are professional and helpful. Totally recommend! Mark EsdaleTrustindex verifies that the original source of the review is Google. After a ice storm related basement flood the GTA team showed us what service meant!. They were here very quickly, with the proper drying equipment and some great staff members. They removed old carpeting/under padding and the bottom 12 inches of drywall from the affected flood area, installed and left drying machines, were back in a week to repair the drywall. We could not have asked for a better job, very glad we chose them. Sanaz SadriTrustindex verifies that the original source of the review is Google. An amazing experience during an unfortunate incident! A team of professionals... They showed up really fast, worked very efficient and extremely detailed. Majid is an amazing guy who keeps you calm and does an excellent job. Ahmad is a hardworking, honest, trust worthy man, whose support is impossible to overlook. Koodos to the entire team from clean up to repair... Thank you GTA Restoration, you guys are awesome! Rudesh kumarTrustindex verifies that the original source of the review is Google. Best Restoration Service!!
Our basement waterproofing process is designed to identify the source of water intrusion, assess interior and exterior conditions, and apply the right waterproofing solution. We focus on long-term protection, clear communication, and proven methods — from initial inspection to final recommendations.

We begin with a detailed inspection of your basement to identify visible signs of moisture, leaks, or dampness. Our specialists examine interior walls, floors, foundation surfaces, and affected areas to understand how water is entering the basement.

Basement water problems often originate from exterior groundwater pressure, surface water, or interior moisture buildup. We assess both interior conditions and exterior factors such as grading, drainage, and foundation exposure to determine contributing causes.

Based on our findings, we determine whether interior waterproofing systems, exterior waterproofing methods, or a combination of both are required. Solutions are tailored to address the specific water intrusion issues affecting your basement.

Once the waterproofing plan is approved, our team installs the selected interior or exterior systems using industry-proven materials. All work is reviewed to ensure proper installation and effective water control.

We review the completed work, explain how the waterproofing system protects your basement, and provide guidance on maintaining a dry, protected space. Our goal is to deliver reliable results and long-term peace of mind.
These videos show real basement conditions observed during wet basement assessments. The focus is on identifying source of issue, evaluating basement environments, and documenting conditions to help property owners better understand potential moisture concerns.
Whether you’re a returning client, property manager, or insurance professional, we offer preferred pricing as part of our long-term service relationships.

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Yes. We provide professional basement waterproofing services designed to address both interior moisture problems and exterior water intrusion. Our solutions are tailored to the specific conditions affecting your basement.
Yes. We provide professional basement waterproofing services designed to address both interior moisture problems and exterior water intrusion. Our solutions are tailored to the specific conditions affecting your basement.
Common signs include water seepage, damp walls or floors, musty odors, visible moisture, or recurring wet basement conditions. Even if water issues are not obvious, professional waterproofing can help identify underlying interior or exterior causes before they worsen.
Most basement waterproofing assessments and installations vary depending on the size of the basement and the type of solution required. An initial evaluation typically takes a few hours, while installation timelines are clearly explained before work begins.
Yes. Our interior and exterior waterproofing methods are safe for occupied homes and use industry-approved materials and installation practices. We work carefully to minimize disruption during the process.
Basement waterproofing may include interior drainage systems, moisture barriers, or exterior waterproofing methods designed to stop water before it enters the basement. The approach depends on where water intrusion is occurring and how severe the issue is.
Absolutely. Proper basement waterproofing helps prevent recurring leaks, reduces moisture buildup, and protects your basement from long-term water damage. Early action often reduces repair costs and improves indoor conditions.
Professional basement waterproofing services focused on stopping water intrusion, controlling moisture, and protecting basements from long-term damage. We provide effective interior and exterior waterproofing solutions based on real conditions — not one-size-fits-all fixes.
We begin by assessing basement conditions to identify interior moisture issues and active water intrusion. Our evaluation helps determine how water is entering the basement and which areas require waterproofing protection.
Based on the assessment, we recommend the appropriate interior waterproofing systems, exterior waterproofing methods, or a combination of both. Each solution is selected to address the specific cause of wet basement conditions.
Our experienced waterproofing team specializes in residential basements. We focus on reliable installation, proven waterproofing methods, and clear communication — without unnecessary services or pressure.
416-657-2222
Serving Western GTA & Beyond