Damp Proofing London
- 30 year guarantee
- No obligation damp survey
- Qualified to industry standards (CSRT & CSSW)
- Public liability limit of indemnity £5 million
Fixed prices
Fixed prices on all our work
No deposit
No deposit/payment until work is dry
We’ll beat any price
We will beat any reputable quote
From £240
Treatment from £240 inc VAT per m²
One of the leading damp and timber preservation specialist companies in London.
London Damp Specialists Ltd was established in 1981 to offer damp proofing treatments, removal and surveys for homeowners in London.
London Damp Specialists remains a family-run damp company offering a full range of corrective home damp treatments, including rising damp treatment, penetrating damp treatment, cellar/basement tanking solutions, and homebuyer damp surveys. We are now regarded as one of London’s leading experts in damp and timber conservation.
We offer damp treatments in London for all problems including:
- Damp proofing
- Rising damp
- Condensation
- Basement tanking
- Timber Treatment
- Homeowner damp survey
At London Damp Specialists our prices are very competitive and our damp experts strive to work quickly to remove and treat damp issues from your property with the least amount of disturbance.
Our damp experts provide the full range of damp treatments including DPC injections in London and throughout the M25. For the past several years, our team of experts has been offering damp removal treatments and surveys in areas such as Kensington, Chelsea, Fulham, Camden, Richmond, Wimbledon, Dulwich, Stratford, Islington and Finchley.
Damp Repair & Proofing Services
Find out what our customers have to say
Respect
We respect your property and belongings and take pride in ensuring a clean and habitable working environment for our customers.
Understanding
The provision of a clear specification of works ensures both we and the customer understands what is expected from the outset.
Timely
We agree realistic, suitable and appropriate timescales that work with our customers' schedules to ensure that we complete on time.
Quality
We listen to our customers. Our trades people have many years’ experience and our directors visit sites regularly to maintain our brand and vision.
Damp Specialist London 5 Step Process
1
Initial Consultation
Tell us about your damp issue and we’ll guide you on next steps. It's an opportunity for you to ask questions and gather information.
2
Site Visit
Next, we visit your property to find the root cause of the issue. We’ll also assess the local environment, and take measurements or observations.
3
No Obligation Quote
Then we’ll send a detailed estimate of the costs involved, with no hidden extras, and provided to you without any commitment. You can review the financial aspect before making any decisions.
4
Work Carried Out
Our expert team carries out the work as planned, to the agreed timeline and quality standards, with minimum disruption to you.
5
Payment on Completion
The last step is payment, once the work’s complete, your home is dry and you’re satisfied with the results.
DAMP TREATMENTS IN LONDON
Many would agree that the British climate is far from ideal and the last few years has seen an increase in rainfall, which is likely due to global warming. Endless days of damp and humid weather create the perfect environment for moisture to penetrate buildings; some areas are waterlogged and low elevations contain a lot of moisture.
London and the southeast have its fair share of damp issues – days without seeing a glimpse of the Sun is a recipe for moisture penetration – and we specialise in moisture control.
Our services
Damp surveys
Damp surveys are essential for those looking to purchase real estate in London; structural integrity cannot be assumed, a few coats of paint can hide timber rot, while damp can rise from the ground and climb up a structure. We offer a homebuyer damp survey that would reveal any moisture issues, plus we quote for remedial work that needs to be done. You might be selling your home due to work relocation and in such a saturated market, having a damp-free certificate is a great selling point.
Basement tanking
Whether under construction or an existing structure, basement tanking in London is a comprehensive sealing of walls, ceilings and floors using Sika rendering. Each layer is allowed to dry out, then a new one is applied, increasing the seal; a cost-effective way to keep the space dry, whether a car park or wine cellar, we can ensure you have zero damp and moisture problems.
Timber treatment
If a roof is leaking, eventually water will get into the internal roof structure, made up of timber joists and rafters that support the roof. Woodworm, wet and dry rot are very real threat, especially in a humid environment. Window and door frames can be damaged by constant condensation and in some cases, replacement is the only option.
Condensation
We can do a ventilation flow test and if the house lacks ventilation, we can suggest ways to generate an airflow. Heat the whole house periodically, which will dry out the air. If you would like a free condensation assessment, we are happy to take a look, plus we can quote for a solution.
Rising damp
Moisture that comes from the ground will climb up walls, which is why every building should have damp proof course, DPC membrane that effectively prevents damp from impacting any higher. A DPC would be no more than 150mm from the ground and it would be installed around the building to act as a moisture barrier.
Penetrating damp
Moisture can come from any direction, the roof and the walls can be compromised; rendering breaks down and mortar crumbles and if not addressed, penetrating damp can cause some serious damage.
We are proud of our unconditional 30-year warranty, which is a reflection of the high standards we employ; if you have damp or condensation issues, call London Damp Specialists on 020 7458 4864 during office hours and we can schedule a survey.
Be proactive regarding property maintenance, protect your investment and enjoy a healthy living environment.
Trust London Damp
We are a Chartered Building Company, Full members of the BWPDA (British Wood Preserving & Damp Proofing Association), PCA (Property Care Association), CHAS and the Guarantee Protection Trust.
Damp Proofing Services Across London
Our damp experts provide the full range of damp removal treatments and surveys, including DPC injections, in London and throughout the M25, in Kensington, Chelsea, Fulham, Camden, Richmond, Wimbledon, Dulwich, Stratford, Islington and Finchley.
Request a Survey
For an in-depth survey of your property or simply to talk to one of our damp proofing specialists in London.
Request a Survey
Helpful Blogs from our Damp Proofing Experts
Damp Survey Costs
Transparent pricing with no hidden fees for our independent, unbiased surveys.
Level 1
What’s included:
- Inspection of walls
- Inspection of floors
- Inspection of ceilings
- Leak inspection of drains and plumbing
- Damp information and prevention guide
Level 2
What’s included:
- Everything in Level 1
- Dry rot inspection
- Wet rot inspection
- Woodworm inspection
- Damp information and prevention guide
Level 3 (Most Popular)
What’s included:
- Everything in L1 & L2
- Thermal Imaging
- Air humidity testing
- HD boroscope camera
- Brickwork pointing inspection
- DPC inspection
- Ventilation flow test on extractor fans
- 4K drone imagery roof, chimney stack
and guttering inspection - Structural condition inspection
- Damp information and prevention guide
Survey Add Ons
Qualifications: All our surveyors are PCA and CSRT qualified for remedial treatments and also CSSW qualified for structural waterproofing.
Next day report: You will receive the report within 24 hours of the inspection taking place.
The survey fee will be deducted from the cost of any recommended repairs.
These are the tools we use
A damp meter
A damp meter is a diagnostic tool used to detect and measure moisture levels within building materials such as plaster, brick, timber, and concrete.
Borescope camera
borescope camera is a small inspection camera attached to a flexible semi-rigid cable that allows you to see inside areas that are otherwise inaccessible.
Inspection Drone
A drone is a remotely operated aerial device equipped with a camera that allows visual inspection from above without the need for scaffolding or ladder.
Air Humidity Sensor
Air humidity sensor measures the amount of moisture present in the air, expressed as relative humidity (RH) in percentage. It helps determine whether indoor conditions are contributing to condensation, mould growth, or damp-related issues.
Thermal Imaging Camera
A thermal imaging camera detects temperature differences on surfaces by using infrared technology to produce a heat map image. In damp investigations, it helps identify cold spots, moisture intrusion, insulation defects, thermal bridging and leaks.
Air Flow Ventilation Detector
An air flow ventilation detector measures the movement and volume of air passing through vents, extractor fans, and air bricks. It confirms whether ventilation systems are working properly and achieving adequate air changes within a room. Poor airflow leads to trapped moisture, high humidity, condensation on cold surfaces, and ultimately mould growth.
Mould Swab Test Kit
A mould swab test is carried out to confirm the presence of hidden mould growth and identify the specific species involved. Surface mould is not always visible, especially behind furniture, inside cavities, or within ventilation systems. Laboratory analysis of a swab sample determines whether active mould spores are present and what type they are, which helps assess potential health risks and decide the correct remediation approach rather than relying on visual assumption alone.
Plaster Salt Analysis Lab
Laboratory analysis of plaster is used to identify the type of salts present within the material, typically chlorides and nitrates. The presence and concentration of these salts help determine whether the moisture source is consistent with rising damp, ground contamination, or another forms [sic] of water ingress. such as mains water leak, This removes guesswork and prevents misdiagnosis, ensuring the correct remedial treatment is specified rather than applying unnecessary or ineffective solutions.
Contact Us
If you have some questions, please complete this form:
Book and Pay for a survey
If you are ready to book a survey and pay, please complete this form:
Contact Us
If you have some questions, please complete this form:
Book and Pay for a survey
If you are ready to book a survey and pay, please complete this form:
Contact Us
If you have some questions, please complete this form:
Book and Pay for a survey
If you are ready to book a survey and pay, please complete this form: