FAQs Archive - Page 2 of 18 - The City Wide Group

Q: How long does it take to waterproof a basement?

Project timelines depend on the size of the home, the method used, and site conditions. Smaller interior systems can often be completed in a couple of days, while full exterior waterproofing or underpinning may take longer. During your estimate, we outline an expected schedule so you know how long crews will be on-site and how the work will be phased.

Q: Is basement waterproofing usually covered by homeowner’s insurance?

In many cases, standard homeowner’s insurance does not cover water entry through foundation walls, floors, or typical seepage. Policies vary, but coverage is often limited to sudden, accidental events—not ongoing leakage. That’s one reason many homeowners choose to invest proactively in waterproofing rather than risk a major, uninsured loss later on.

Q: What are the most common early signs that my basement needs waterproofing?

Early warning signs include musty odours, small damp spots on walls or floors, peeling paint, rust on metal surfaces, and white mineral deposits on foundation walls. You may also notice the base of wood framing or furniture becoming discoloured. If you see these indicators, it’s a good time to schedule a professional assessment.

Q: How long does basement waterproofing typically last?

When basement waterproofing is done properly—with quality materials, correct installation, and adequate drainage—it is designed to last for the life of the structure. That’s why we back our work with a lifetime, fully transferable warranty on treated areas. The key is addressing the real cause of the water problem, not just sealing over the symptoms.

Q: How much disruption does underpinning cause?

Underpinning is a significant structural project, so there will be noise, dust, and limited access to parts of your basement while work is underway. Our crews complete the work in carefully planned stages to maintain full support for your home at all times. Before starting, we explain the full process, timing, and what to expect day-to-day so you can plan around the disruption. Once finished, you’re left with a stronger foundation and a more spacious, usable lower level.

Q: Can I do waterproofing and underpinning at the same time?

Yes. In fact, combining waterproofing and underpinning is often the most efficient and cost-effective option. Because underpinning requires working right at the foundation level, it creates an ideal opportunity to add or upgrade waterproofing and drainage systems at the same time. This approach can reduce overall disruption and ensures your newly lowered basement is both structurally sound and well-protected from water.

Q: Why do basements leak?

Basements can leak for many reasons, including failed or aging exterior damp-proofing, clogged or broken weeping tiles, poor grading around the home, foundation cracks, high groundwater, or blocked drains. In older homes, original waterproofing systems may simply have reached the end of their lifespan. A professional assessment helps pinpoint the true cause so the repair plan addresses the source of the problem instead of just treating the visible symptoms.

Q: What is basement waterproofing, and why is it important?

Basement waterproofing is the process of preventing unwanted water from entering your basement or foundation. It can include crack repairs, membranes, drainage systems, sump pumps, grading improvements, and more. Proper waterproofing helps protect against mould growth, rot, structural deterioration, and damage to flooring, drywall, and stored belongings. It also makes your basement more comfortable, usable, and attractive to potential buyers.

Q: How does interior basement waterproofing work?

Interior basement waterproofing usually involves cutting a narrow trench around the inside perimeter of the basement floor, installing a drainage pipe or channel, and connecting it to a sump pump or floor drain. As water collects at the base of the wall, it’s intercepted and carried away before it can reach your finished floors and walls. This method is especially useful when exterior excavation is not practical or when you are planning to finish or renovate your basement.

Q: What is the cost of waterproofing a basement?

The cost of waterproofing depends on several factors: the size and depth of your foundation, whether work is done inside or outside, soil conditions, access for excavation, and the extent of existing damage. After a site visit, we provide a detailed, written estimate so you know exactly what is included. In many cases, addressing water issues early is significantly more affordable than dealing with a major flood or structural repair later on.