Are you thinking of refurbishing, converting, or simply waterproofing a cellar or basement in London?
Timberwise can help, with our CSSW-qualified waterproofing design specialists able to provide bespoke waterproofing solutions for homes and businesses throughout London.
Book a free basement waterproofing survey with our team to get a comprehensive plan, a clear quote, and long-lasting PCA-accredited protection.
Request a Survey
Because London is set on heavy clay soil, the cellars and basements that are common throughout London are often exposed to high levels of groundwater and lateral pressure.
This means that basements throughout London need to be waterproofed to a high standard, and if the property in question has ageing brickwork, old or improper waterproofing, or simply located near an area known for regular flooding, then that basement is going to be at a higher risk of developing a moisture ingress problem.
Luckily, our team design waterproofing systems in line with BS 8102:2022 (the British code of practice for protection of below-ground structures against water ingress), and are accredited through both the PCA and with CSSW qualifications, so you can be assured of long-lasting, complete waterproofing solutions, designed to stand up to the unique challenges London based cellars and basements face on a day to day.
Our waterproofing design specialists design and install waterproofing systems specifically for your below ground space, all in line with BS8102:2022, so you can be confident your basement will remain protected and usable long into the future.
Type A Waterproofing Solutions (Tanking)
Tanking a basement is the process of applying a waterproof, cementitious slurry to any surfaces that have been leaking.
Simply put, we can coat your basement’s walls, ceilings, floor-wall junctions, and any other area that has experienced issues with flooding in a waterproof sealant, stopping the moisture from entering altogether. This is a quick and easy waterproofing solution, and can be applied in any space thanks to the fact it’s not invasive or destructive.
Type C Waterproofing System (Cavity Drain Membrane)
Cavity drainage systems are incredibly quick, easy, and common waterproofing solutions to install in basements and cellars of any shape and size.
A waterproof, studded membrane is affixed to the basements walls and floor to create a controlled drainage layer, something that would-be floodwater is trapped behind, before being channelled to a connected sump pump, which collects, stores, and safely flushes away the floodwater, all without the moisture ever entering the basement itself.
This is a clean, easily serviced, and ideal solution for retrofitting basements into usable, habitable spaces. Our team installs:
- Waterproof wall and floor membranes
- Perimeter drainage channels, including inspection ports.
- Sump pumps, including sunken pump chambers, battery backups, high-level alarms and dual pumps.
Once installed, we will be able to provide regular servicing and maintenance through our sister company, the Basement Sump & Pump Company, to ensure that your basement remains dry and secure all year round.
Combined Protection
In cases where no basement waterproofing system has been installed at all, our team will recommend a combined solution, in line with what BS8102:2022 stipulates. This means that our team will install both tanking and a cavity drainage system to make sure your basement is completely protected from water ingress throughout the year.
Benefit from a Highly Qualified Basement Waterproofing Team
Timberwise has a team of CSSW qualified surveyors who also go through the latest in PCA training and qualifications, to ensure we give you the most modern and best possible basement waterproofing service.
Our Locally Based Basement Waterproofing Team have Years of Local Experience
Because our team are all located in London, they have decades of experience working in the different kinds of properties that make up the city and surrounding area.
Long-Term, Comprehensive Guarantees
To give long-term peace of mind on the work we do, all completed Timberwise basement waterproofing work comes complete with a 10 year guarantee.
Professional, Qualified, London Based Surveyors
We are members of the Property Care Association, and endorsed by Which? Trusted Traders, as well as being members of Checkatrade, and Trustmark. You can see more of our reviews on Trustpilot, Google, or Reviews.io. We are confident that our team can deliver effective, lasting property care solutions, and we have hundreds of past customers who say the same!
Proven Results in London Homes
We respect your home. Our technicians will leave areas they work in tidy, agree timelines ahead of work starting, and establish clear lines of communication to minimise disruption in your day to day routine.
What Our Customers Say
Read feedback from homeowners who have recieved a survey from Timberwise
Dry Rot Remediation and Structural Timber Repairs in a Victorian House, London
Client: Domestic Our client, a homeowner in London, tasked Timberwise with surveying the property for...
Rising and Penetrating Damp in a North London home
Client: Private Our client was a private homeowner in London. Timberwise were called due to...
Double Trouble | Wet Rot and Woodworm at Edwardian Building in Surrey
The client was a commercial gym that had vacant property being prepared for conversion. Timberwise...
Step 1: Book Your Free Survey
Fill in one of our online contact forms, or call 0208 226 4168, and our team will arrange a convenient time for our CSSW surveyors to visit you.
Step 2: You Recieve our Written Report & Waterproofing Design
Our PCA-qualified surveyor will visit your property and carry out your survey, before delivering our proposed waterproofing solution to you in a written report. This will include drawings and specifications of the work, including the likes of what type of waterproofing system we will install, all in line with BS8102:2022.
Step 3: Our Technicians Begin the Installation
Our PCA accredited technicians will install your basement waterproofing in line with the designs created by our waterproofing design specialists.
We can coordinate with architects, builders, estate agents – whoever we need to, all to make sure that your basement waterproofing project is completed on time and to the best possible standard.
Step 4: You Recieve a Timberwise Guarantee
Once the work is complete, we will leave you with a 10-year guarantee, standard on all basement waterproofing work completed by Timberwise. This guarantee is insurance-backed, a new type of warranty provided by the PCA that backs our work up even further at no additional cost.
Basement waterproofing in London costs vary depending on the type of waterproofing being installed, the size and scope of the project, and other varying factors. Once we have completed a survey, you will receive a written report that contains our quote to complete the waterproofing work in question.
The British Waterproofing Standard BS8102:2022 stipulates that at least two forms of recognised waterproofing need to be in use in a basement in order for that below-ground space to be considered properly protected.
If your property already features basement waterproofing, our waterproofing design specialist will take this into account when designing your waterproofing solution.
Smaller waterproofing installations can be completed in 1 -2 weeks, whilst larger projects can vary depending on the scope of the work. Our specialists will be able to give you a clear timeline when they deliver their report.
Yes, we offer ongoing sump and sewage pump servicing and repair through our sister company, The Basement Sump & Pump Company.
You can request a visit from them via the link below.
Absolutely, we can join any project no matter what stage its up to, and work with whoever we need to in order to coordinate details, fit out timelines, design specifications, and more.
Don’t wait for leaks to spread, for groundwater pressure to rise, or for basement humidity to lead to mould and structural issues. Contact our London basement waterproofing specialists on 0208 226 4168 for prompt, reliable, guarantee-backed protection.
Call or Click:
Are you thinking of refurbishing, converting, or simply waterproofing a cellar or basement in London?
Timberwise can help, with our CSSW-qualified waterproofing design specialists able to provide bespoke waterproofing solutions for homes and businesses throughout London.
Book a free basement waterproofing survey with our team to get a comprehensive plan, a clear quote, and long-lasting PCA-accredited protection.
Why are London Basements at Risk of Leaking?
Because London is set on heavy clay soil, the cellars and basements that are common throughout London are often exposed to high levels of groundwater and lateral pressure.
This means that basements throughout London need to be waterproofed to a high standard, and if the property in question has ageing brickwork, old or improper waterproofing, or simply located near an area known for regular flooding, then that basement is going to be at a higher risk of developing a moisture ingress problem.
Luckily, our team design waterproofing systems in line with BS 8102:2022 (the British code of practice for protection of below-ground structures against water ingress), and are accredited through both the PCA and with CSSW qualifications, so you can be assured of long-lasting, complete waterproofing solutions, designed to stand up to the unique challenges London based cellars and basements face on a day to day.
Basement Waterproofing Systems We Install in London
Our waterproofing design specialists design and install waterproofing systems specifically for your below ground space, all in line with BS8102:2022, so you can be confident your basement will remain protected and usable long into the future.
Type A Waterproofing Solutions (Tanking)
Tanking a basement is the process of applying a waterproof, cementitious slurry to any surfaces that have been leaking.
Simply put, we can coat your basement’s walls, ceilings, floor-wall junctions, and any other area that has experienced issues with flooding in a waterproof sealant, stopping the moisture from entering altogether. This is a quick and easy waterproofing solution, and can be applied in any space thanks to the fact that it’s not invasive or destructive.
Type C Waterproofing System (Cavity Drain Membrane)
Cavity drainage systems are incredibly quick, easy, and common waterproofing solutions to install in basements and cellars of any shape and size.
A waterproof, studded membrane is affixed to the basements walls and floor to create a controlled drainage layer, something that would-be floodwater is trapped behind, before being channelled to a connected sump pump, which collects, stores, and safely flushes away the floodwater, all without the moisture ever entering the basement itself.
This is a clean, easily serviced, and ideal solution for retrofitting basements into usable, habitable spaces. Our team installs:
- Waterproof wall and floor membranes
- Perimeter drainage channels, including inspection ports.
- Sump pumps, including sunken pump chambers, battery backups, high-level alarms and dual pumps.
Once installed, we will be able to provide regular servicing and maintenance through our sister company, the Basement Sump & Pump Company, to ensure that your basement remains dry and secure all year round.
Combined Protection
In cases where no basement waterproofing system has been installed at all, our team will recommend a combined solution, in line with what BS8102:2022 stipulates. This means that our team will install both tanking and a cavity drainage system to make sure your basement is completely protected from water ingress throughout the year.
What Our Customers Say
Read feedback from homeowners who have recieved a survey from Timberwise
Why Choose Timberwise London?
Benefit from a Highly Qualified Basement Waterproofing Team
Our Locally Based Basement Waterproofing Team have Years of Local Experience
Because our team are all located in London, they have decades of experience working in the different kinds of properties that make up the city and surrounding area.
Long-Term, Comprehensive Guarantees
To give long-term peace of mind on the work we do, all completed Timberwise basement waterproofing work comes complete with a 10-year guarantee.
Professional, Qualified, London Based Surveyors
We are members of the Property Care Association, and endorsed by Which? Trusted Traders, as well as being members of Checkatrade, and Trustmark. You can see more of our reviews on Trustpilot, Google, or Reviews.io. We are confident that our team can deliver effective, lasting property care solutions, and we have hundreds of past customers who say the same!
Proven Results in London Homes
We respect your home. Our Technicians will leave areas they work in tidy, agree timelines ahead of work starting, and establish clear lines of communication to minimise disruption in your day to day routine.
Recent Projects by Timberwise in London
Dry Rot Remediation and Structural Timber Repairs in a Victorian House, London
Client: Domestic Our client, a homeowner in London, tasked Timberwise with surveying the property for...
Rising and Penetrating Damp in a North London home
Client: Private Our client was a private homeowner in London. Timberwise were called due to...
Double Trouble | Wet Rot and Woodworm at Edwardian Building in Surrey
The client was a commercial gym that had vacant property being prepared for conversion. Timberwise...
The Timberwise Basement Waterproofing Process
Step 1: Book Your Free Survey
Fill in one of our online contact forms, or call 0208 226 4168, and our team will arrange a convenient time for our CSSW surveyors to visit you.
Step 2: You Recieve our Written Report & Waterproofing Design
Our PCA-qualified surveyor will visit your property and carry out your survey, before delivering our proposed waterproofing solution to you in a written report. This will include drawings and specifications of the work, including the likes of what type of waterproofing system we will install, all in line with BS8102:2022.
Step 3: Our Technicians Begin the Installation
Our PCA accredited technicians will install your basement waterproofing in line with the designs created by our waterproofing design specialists.
We can coordinate with architects, builders, estate agents – whoever we need to, all to make sure that your basement waterproofing project is completed on time and to the best possible standard.
Step 4: You Recieve a Timberwise Guarantee
Once the work is complete, we will leave you with a 10-year guarantee, standard on all basement waterproofing work completed by Timberwise. This guarantee is insurance-backed, a new type of warranty provided by the PCA that backs our work up even further at no additional cost.
Basement waterproofing in London costs vary depending on the type of waterproofing being installed, the size and scope of the project, and other varying factors. Once we have completed a survey, you will receive a written report that contains our quote to complete the waterproofing work in question.
The British Waterproofing Standard BS8102:2022 stipulates that at least two forms of recognised waterproofing need to be in use in a basement in order for that below-ground space to be considered properly protected.
If your property already features basement waterproofing, our waterproofing design specialist will take this into account when designing your waterproofing solution.
Smaller waterproofing installations can be completed in 1 -2 weeks, whilst larger projects can vary depending on the scope of the work. Our specialists will be able to give you a clear timeline when they deliver their report.
Yes, we offer ongoing sump and sewage pump servicing and repair through our sister company, The Basement Sump & Pump Company.
You can request a visit from them via the link below.
Absolutely, we can join any project no matter what stage its up to, and work with whoever we need to in order to coordinate details, fit out timelines, design specifications, and more.
Request a Survey
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