PCA CERTIFIED DAMP PROOFING, WATERPROOFING & TIMBER SERVICES

Damp Proofing Specialists in London

Since 1960, Dampstar has protected homes and businesses across London and Hertfordshire from damp, water damage and timber decay. Our PCA certified, insurance-backed treatments for rising damp, penetrating damp, waterproofing and timber preservation are built on decades of hands-on experience, delivering lasting results for your peace of mind.

Our Services

Damp Proofing

Damp can lead to mould growth, damaged plaster, timber decay and poor indoor air quality if left untreated.

Rising Damp

Groundwater soaking up into your walls ruins wallpaper, spoils plaster, and leaves musty smells.

Penetrating Damp

Rainwater leaking through roof gaps or cracked bricks creates spreading wet patches on walls.

Condensation Control

Trapped steam from cooking and showering causes condensation on and around windows.

Timber Treatment

Moisture can lead to wet rot, dry rot and woodworm infestations, putting your property’s structural timber at risk.

Waterproofing

Effective waterproofing protects your property from water ingress, damp, mould and costly structural damage.

Why Choose Dampstar?

As a trusted, expert local team, we combine traditional craftsmanship with modern methods, delivering reliable, on-time damp proofing results property owners can depend on.

Expertise

Our team has many years of hands-on experience dealing with all types of damp in London’s unique building landscape.

Honest assessments

We provide clear, transparent reports and never recommend work you don’t need.

Guaranteed work

Many of our services come with long-term guarantees for your peace of mind.

Full compliance

All our damp-proofing treatments are fully compliant with UK building regulations and industry standards.

Our excellent reputation

Our many 5 star Google reviews speak for themselves.

Trusted, PCA Certified damp & timber surveyors

Accreditations & Certifications

Our accreditations reflect our commitment to the highest standards in damp proofing, waterproofing and timber preservation. As PCA-certified damp and timber surveyors, we follow industry best practices, use proven methods and deliver work you can trust. Explore our professional accreditations and see why homeowners, landlords and commercial clients choose Dampstar.

About Our Damp Proofing Company

With over 60 years of industry experience, Dampstar is trusted for expert damp proofing, waterproofing and timber preservation across residential and commercial properties. Our PCA-certified damp and timber surveyors combine generations of knowledge with exceptional workmanship, using only proven UK-sourced products to deliver lasting protection. Committed to quality, reliability and adding value to every property, our skilled specialists complete every project professionally and on time. Learn more about our story and expertise.

What Our Clients Say

    
 
 
       Posted on Google  
   
   Louis Govender 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very professional from outset in term of survey, report and quotation. Workmanship outstanding. Will recommend Dampstar anytime rgds Louis Govender
  
 
      Posted on Google  
   
   Jo Ellaway 
 
 
 
 Trustindex verifies that the original source of the review is Google. Everyone at Dampstar, Andrew, Charlene and Defrim is super helpful, knowledgeable and friendly. Their service is professional, prompt and everything is explained really well. It took several tries to find a company I felt I could trust and I am very happy I chose. them.
  
 
      Posted on Google  
   
   Anusuya Raghavan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Andrew, Charlene & Defrem were professional from start to finish. The survey was booked in days, the quote quickly followed.  It was clearly set out and itemised.  I had questions which were all answered promptly.  Importantly the work was done to schedule with my home left clean and tidy.
  
 
      Posted on Google  
   
   Gurpinder singh flora 
 
 
 
 Trustindex verifies that the original source of the review is Google. The workmanship was outstanding and everything was completed on schedule. Our loft is now a beautiful extra bedroom with plenty of light.
  
 
      Posted on Google  
   
   Angad Garcha 
 
 
 
 Trustindex verifies that the original source of the review is Google. Andrew was great at highlighting the rising damp problem and advising on how to avoid future problems. The quote was clear, reasonable and carried out quickly and efficiently with a guarantee. Great service overall from Andrew and team.
  
 
      Posted on Google  
   
   Ahlam Akram 
 
 
 
 Trustindex verifies that the original source of the review is Google. for the past 7 years and probably 6 payments to different companies .. I was desperate and lost my trust to all .. Dampstar  did the job.. most reliable and trust worthy exactly within the time frame allocated to the job.. so Grateful  to them..

Read the Dampstar Blog

Balcony Waterproofing in Richmond London

Balcony leaks are a common issue for homeowners in...

Rainwater Penetration to a Building in Earl’s Court

This report addresses an incident of rainwater penetration affecting...

Damp and Mould in London Homes: Causes, Risks, and Why Ventilation Matters

Damp and mould are widespread issues affecting homes across...

Insurance Backed Guarantees

At DAMPSTAR, we’re committed to delivering high-quality damp-proofing and waterproofing solutions that stand the test of time. To give our customers complete confidence in our work, we partner with QANW (Quality Assured National Warranties) to provide insurance-backed guarantees. This means that in addition to our own guarantee, your investment is protected by an independent insurance policy. It’s an extra layer of reassurance that you’re working with a professional, trustworthy company that prioritises your peace of mind and long-term satisfaction.

An insurance-backed guarantee (IBG) is a policy that covers the cost of remedial work should DAMPSTAR cease trading during the guarantee period. Even in the unlikely event that we’re no longer around, you’ll still be protected by QANW’s cover. This safeguard ensures that the guarantees we offer remain valid and enforceable, giving you lasting confidence in the quality and durability of our services. It’s part of our commitment to transparency, reliability, and putting our customers’ interests first.

Book A Survey

DAMPSTAR

295 Chiswick High Road,

Chiswick, London,

W4 4HH

Email us: admin@dampstar.co.uk

Call us: 07376 700073

Hours

Mon 08:00 – 17:00
Tue 08:00 – 17:00
Wed 08:00 – 17:00
Thu 08:00 – 17:00
Fri 08:00 – 17:00
Sat 09:00 – 17:00
Sun Closed