Cold applied liquid waterproofing
Protect your property, trust PSL
Seamless, guaranteed waterproofing for flat roofs, balconies, car parks and walkways — backed by over 40 years of experience.
- 40+ years' experience
- 100% customer satisfaction
- Comprehensive guarantee
About PSL
Welcome to PSL Waterproofing
PSL Waterproofing offers cutting-edge technology and top-quality materials to ensure your project is fully protected from even the harshest weather conditions.
Our experienced professionals will work closely with you to provide a tailored solution that meets your specific needs — a reliable, cost-effective service that gives you peace of mind, knowing your property is protected for decades to come.
- Years of experience
- 40+
- Customer satisfaction
- 100%
- Leading systems installed
- 7
Fully guaranteedon all our work
What we do
Waterproofing for every flat surface
From a single balcony to a multi-storey car park, we install proven cold applied liquid systems that are tailored to the job.
Flat roofs
Seamless, fully bonded waterproofing for new and existing flat roofs, detailed around rooflights, upstands, outlets and plant.
Balconies & terraces
Hard-wearing waterproof finishes for balconies, roof terraces and podiums that stand up to everyday foot traffic.
Car parks
Protective deck coatings that keep water and salts out of the structure and cope with vehicles day in, day out.
Walkways
Durable, slip-resistant coatings for walkways, access routes and steps — waterproof and safe underfoot.
Our specialism
Why cold applied liquid waterproofing?
We have been developing, delivering and installing cold applied liquid systems for more than 40 years. Here's why they are our first choice.
Seamless protection
Applied as a liquid, the membrane cures into one continuous layer with no joints or laps for water to find.
No naked flames
Cold applied systems need no torches, making them a safer choice for occupied homes, schools and churches.
Made for awkward details
Liquid membranes form around pipes, rooflights, cable trays and upstands that sheet materials struggle with.
Less disruption
Many systems can go over a sound existing surface, reducing strip-out, waste and time on site.
Why choose PSL
Quality work, fair prices, happy clients
Our guarantee
We firmly stand behind the quality of our work and the materials we use. That's why we offer a comprehensive guarantee on all our waterproofing services, providing our clients with unmatched peace of mind.
Cost-effective solutions
We offer competitive pricing without sacrificing the quality and reliability of our work or materials. Our team works to provide tailored solutions that meet requirements and budgets.
Customer satisfaction
We are proud to maintain a 100% customer satisfaction rate. Our clients consistently rate us highly for our professionalism, communication and attention to detail.
Recent work
Projects we're proud of
A selection of roofs, terraces and details we've waterproofed for homeowners and main contractors.
Systems we install
- Proteus
- Sika
- Bauder
- Kemper System
- Triflex
- Westwood
- Centaur
Trusted by contractors including
- Millane
- Masc Construction
- Concept Roofing
- Carringtons
How it works
Simple from start to finish
- 1
Get in touch
Call, WhatsApp or send the form below. Include any known sizes or photos if you have them.
- 2
Free quote
We look at the job, recommend the right system and give you a clear, tailored price.
- 3
Installation
Our experienced team completes the work cleanly, efficiently and safely.
- 4
Peace of mind
Your property is protected for years to come, backed by our comprehensive guarantee.
Request
Get a free quote
Submit your request and our team will get back to you promptly. Please include any known size specifications, if applicable. Otherwise, feel free to give us a call.
Thank you, we've got your message
We'll get back to you as soon as possible. If it's urgent, call us on 07537 878771.