
Guarantee on all damp treatments

Damp-proofing
experience

Damp survey and diagnosis
If you’ve spotted signs of damp, decay or structural deterioration of your property, it’s a surefire sign your basement waterproofing system has failed. Without the right prevention in place, moisture will continue to penetrate your walls and floors, causing further damage to your home, health and bank balance.
If you want peace of mind your basement will stay dry for years to come, you need the right waterproofing system correctly installed by a specialist. At Insitu south coast preservation, we supply and install long-lasting waterproofing treatments to block the passage of moisture to your home – and all at affordable fees.
Basement damp is typically caused by a build-up of groundwater and hydrostatic pressure exerted to your floor and walls. Left untreated, water penetrates failing waterproofing systems resulting in mould, decay and structural deterioration.
Depending on the cause of damp to your basement, there are two main ways to prevent water from causing further damage. Based on the outcome of your site survey, our specialists will likely advise on an external waterproofing system or, to control ingress and flow of water, we may suggest a cavity drainage system.


Tailored Waterproofing Solutions: We offer a range of waterproofing methods, tailored to suit the unique needs of your basement:
Interior Waterproofing: This involves applying sealants and waterproof coatings to basement walls and floors, effectively blocking moisture from entering. It’s a practical solution for minor dampness issues.
Exterior Waterproofing: More comprehensive than interior methods, exterior waterproofing involves excavating around the property to install a waterproof membrane on the outside of basement walls. This method is highly effective in preventing water from penetrating the basement.
Drainage Systems: Proper drainage is crucial in basement waterproofing. We install sump pumps, French drains, and other drainage solutions to divert water away from your foundation, keeping your basement dry.
Dehumidification Systems: To control humidity levels and prevent condensation, we recommend and install high-quality dehumidifiers as part of our waterproofing strategy.
Customized Waterproofing Strategies: We develop personalized plans based on the unique characteristics of your property and the specific challenges it faces.
Advanced Interior and Exterior Solutions: Depending on your needs, we offer both interior and exterior waterproofing methods, including the application of sealants, waterproof coatings, and the installation of external waterproof membranes.
Effective Drainage Systems: Proper drainage is crucial in Sussex, where heavy rains can be common. We install sump pumps, French drains, and other systems to effectively manage water around your property.
Humidity Control: To combat high humidity levels often found in Sussex basements, we recommend and install top-of-the-line dehumidifiers.
Protect your property from the damaging effects of penetrating damp with Insitu’s specialist services. Contact our expert team to arrange a consultation and discover how we can provide tailored, conservation-led solutions to preserve your building’s legacy.
Palmerston House Farren Court,
The Street, Cowfold, Horsham,
RH13 8BP
Palmerston House Farren Court,
The Street, Cowfold, Horsham,
RH13 8BP
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