Expert Structural Waterproofing & Damp Protection
At SM Preservations, we provide professional waterproofing services throughout Bromley and the surrounding areas.
From basements and cellars to external walls and foundations, our waterproofing specialists deliver effective, long-term solutions that protect your property from water ingress, damp, and structural decay.
What Is Waterproofing?
Waterproofing is the process of making a structure resistant to water penetration. Whether moisture enters through porous brickwork, cracks in foundations, or hydrostatic pressure underground, waterproofing forms a protective barrier that keeps your property dry and secure.
Without proper waterproofing, water damage can lead to mould growth, plaster deterioration, rotten timbers, and even weakened structural integrity. Investing in professional waterproofing ensures your home stays protected for decades.
Why Choose SM Preservations
Accreditations & Insurance
Proud member of Checkatrade. Fully insured and compliant with UK building preservation standards.
Types of Timber Problems & How to Identify Them
Cementitious Waterproofing
A rigid, cement-based coating applied to walls and floors
Ideal for basements, water tanks, and retaining walls
Creates a durable, watertight barrier against moisture
Cavity Drain Membrane (CDM) Systems
Uses a studded membrane to channel water into a controlled drainage system
Prevents pressure build-up and allows water to escape safely
Excellent for below-ground areas with persistent damp or seepage
Liquid or Bituminous Coatings
Flexible membranes applied to external or internal surfaces
Protects against hairline cracks and weather exposure
Commonly used on roofs, balconies, and external walls
Our Step-by-Step Waterproofing Process
Survey & Diagnosis
We carry out a detailed moisture survey to identify the source of water ingress and the most suitable waterproofing method.
Surface Preparation
Walls and floors are cleaned, repaired, and primed to ensure maximum adhesion and durability of the waterproofing system.
Application of Waterproofing System
Our trained technicians apply or install the selected system precisely and efficiently, following manufacturer and industry standards.
Drainage & Finishing
Where required, we integrate drainage channels or sump pumps and finish surfaces for a clean, usable appearance.
Quality Check & Guarantee
Once complete, we test and inspect all treated areas, ensuring a watertight seal and issuing a written guarantee for your peace of mind.
Contact Form
Get a Free Damp Survey
Don’t let damp damage your home. Book a no-obligation survey today to identify the cause and get a fixed-price solution.
FAQ's
How do I know if my property needs waterproofing?
Look for signs such as damp patches, peeling paint, mould growth, or water staining on walls and floors. If your basement feels humid or smells musty, it’s likely water is penetrating through the structure.
Is waterproofing suitable for both new and existing buildings?
Yes — we provide waterproofing for new constructions as well as existing properties. Whether you’re renovating, converting a basement, or protecting an older structure, we’ll recommend the most effective system for your needs.
How long does waterproofing last?
When applied by professionals and properly maintained, modern waterproofing systems can last 20 years or more. SM Preservations uses premium materials to ensure lasting protection and value for your property.