Water damage is one of the most common and costly problems property owners face in New York. A damp basement, leaking foundation, cracked wall, or musty crawl space may seem minor at first, but moisture can quickly lead to structural deterioration, mold growth, poor indoor air quality, and expensive repairs. At On Top Masonry & Construction, we provide professional waterproofing services in New York, helping homeowners protect their foundations, basements, masonry, and exterior structures from long-term water damage.
New York properties face a combination of heavy rainfall, snowmelt, groundwater pressure, aging foundations, poor drainage, and freeze-thaw cycles. These conditions can force water through small cracks, porous concrete, mortar joints, basement walls, and foundation gaps. Our team provides practical waterproofing solutions designed to stop leaks, manage drainage, and protect your property year-round.
Whether you need basement waterproofing, foundation crack sealing, French drains, sump pump installation, exterior waterproofing, or masonry moisture protection, we deliver long-lasting solutions built around the needs of your property.
Waterproofing is not just about sealing visible leaks. A proper waterproofing system identifies where water is coming from, why it is entering, and how to redirect or block it before it creates further damage.
Professional waterproofing helps prevent
Many New York homes, especially older properties, were not built with modern waterproofing systems. That makes routine inspection and moisture control especially important.
Below is an overview of the premium services we offer to homeowners across New York.
Basements are highly vulnerable to water intrusion because they sit below ground level and are constantly exposed to soil moisture. If water enters after heavy rain, snowmelt, or storms, your basement may need a waterproofing solution. Our basement waterproofing services include: Interior drainage systems Basement wall sealing Crack repair Vapor barriers Moisture control French drain systems Sump pump systems A dry basement improves comfort, protects belongings, and helps prevent mold-related issues.
Foundation cracks are one of the most common water entry points. Even hairline cracks can allow moisture to seep inside when groundwater pressure builds around the home. We repair leaking foundation cracks using appropriate methods such as: Urethane injection for active leaks Epoxy injection for structural cracks Masonry crack repair Exterior sealing Waterproof coatings Crack sealing is often combined with drainage improvements for long-term results.
Interior French drains are designed to collect water that enters around the perimeter of the basement and direct it to a sump pump or drainage outlet. This system is especially useful for properties that experience ongoing water seepage. Interior French drains help: Reduce hydrostatic pressure Prevent basement flooding Manage groundwater Protect finished basement areas Improve long-term moisture control A properly installed French drain can be one of the most effective solutions for recurring basement water problems.
A sump pump removes water from the basement before it can accumulate and cause flooding. It is especially important for homes with high groundwater levels or recurring basement leaks. We provide sump pump solutions including: New sump pump installation Sump pit setup Pump replacement Battery backup options Drainage connection support A reliable sump pump provides peace of mind during storms and heavy rainfall.
Exterior waterproofing stops water before it reaches the foundation wall. This is often the strongest long-term solution for serious water intrusion. Exterior waterproofing may include: Excavation around foundation walls Waterproof membrane installation Drainage board installation Exterior French drains Foundation wall sealing Soil grading correction This approach protects the foundation from the outside and helps reduce pressure against basement walls.
Moisture in crawl spaces can affect the entire home. Damp crawl spaces often lead to musty odors, mold growth, wood rot, and poor air quality. Our crawl space waterproofing services may include: Vapor barriers Drainage correction Moisture sealing Insulation protection Dehumidification recommendations Keeping the crawl space dry helps protect the home’s structure and indoor environment.
Brick, stone, and concrete surfaces can absorb moisture if they are not properly maintained. Over time, water exposure can cause spalling, cracking, efflorescence, and mortar failure. We provide masonry waterproofing for: Brick walls Chimneys Retaining walls Stonework Concrete surfaces Foundation walls We use breathable waterproofing products where appropriate so masonry can release trapped vapor while resisting water absorption.
You should consider a waterproofing inspection if you notice
Even occasional moisture is a warning sign. Waterproofing problems usually get worse over time if they are not corrected.
We provide waterproofing services across New York service areas, including
Other causes include
Both interior and exterior waterproofing can be effective, but they solve problems in different ways.
Interior waterproofing manages water after it reaches the basement. This may include French drains, sump pumps, vapor barriers, and interior sealing. It is often effective for recurring seepage and groundwater issues.
Exterior waterproofing stops water before it reaches the foundation. It is more involved but provides excellent long-term protection for serious moisture problems.
The best solution depends on the property, source of water, foundation type, and severity of the issue.
Water can enter a home for several reasons. The most common causes include poor drainage, clogged gutters, short downspouts, foundation cracks, hydrostatic pressure, old waterproofing, settlement cracks, and improper grading around the home.
New York weather can make these issues worse. Snowmelt, rainstorms, and freeze-thaw cycles repeatedly expose foundations and masonry to moisture. Older properties may also have deteriorated mortar, aging concrete, or drainage systems that no longer perform properly.
A professional inspection helps identify whether the problem is coming from cracks, drainage, foundation movement, exterior grading, or groundwater pressure.
At On Top Masonry & Construction, we understand that waterproofing must address the cause of the problem, not just the visible leak. Our experience in masonry, foundation repair, drainage, and exterior construction allows us to recommend complete solutions.
Basement waterproofing
Foundation crack sealing
Interior and exterior solutions
French drains and sump pumps
Licensed and insured service
Masonry waterproofing
Free estimates & Honest Inspections
New York and New Jersey service coverage
If your basement is leaking, your foundation has cracks, or your home is showing signs of moisture damage, do not wait for the problem to spread. Our team can inspect the issue, explain the cause, and recommend the right waterproofing solution.
Call On Top Masonry & Construction today to schedule your free waterproofing estimate in New York.
Common signs include water in the basement, damp walls, musty odors, mold, peeling paint, foundation cracks, white residue on walls, and water stains after rain.
Yes. On Top Masonry & Construction provides waterproofing services in New York, including basement waterproofing, foundation crack sealing, French drains, sump pumps, exterior waterproofing, and masonry waterproofing.
Interior waterproofing helps manage water after it reaches the basement, while exterior waterproofing stops water before it reaches the foundation. The best option depends on the cause and severity of the moisture problem.
Yes. Foundation crack sealing can stop water from entering through cracks. If water pressure or drainage problems are causing the issue, additional waterproofing may be recommended.
Yes. We provide free waterproofing estimates in our New York service areas.
