Business Details
15 Years
experience
Trusted Damp Proofing & Preservation Services in London
Established in 2011, Crown Preservation has built a reputation as a trusted provider of specialist damp proofing, woodworm treatment, and structural repair services across London and the surrounding counties of Surrey, Kent, Essex, and Middlesex. Our team of certified professionals utilises industry-leading techniques to address rising damp, penetrating damp, condensation, dry rot, wet rot, and cavity wall tie failures. With over a decade of experience, we deliver tailored solutions for both residential and commercial properties, ensuring long-term structural integrity. Our expertise extends to basement and cellar waterproofing using advanced tanking systems, while our woodworm treatments target specific beetle species prevalent in UK properties.We prioritise accurate diagnosis before treatment, employing thermal imaging and endoscopic surveys to identify root causes. Our commitment to quality is demonstrated through comprehensive aftercare and adherence to British Standards. As a locally owned business, we combine technical expertise with personalised service, offering free initial assessments and detailed remediation plans. Our work safeguards property investments while maintaining compliance with building regulations and insurance requirements.
Services
Damp Proofing
Woodworm Treatment
Wall Tie Replacement
Basement Waterproofing
Rot Treatment
Details
- Year established: 2011
Highlights and features
- We have over 12 years of specialist experience in damp and timber preservation
- Our team uses thermal imaging and endoscopic surveys for accurate diagnosis
- We provide comprehensive solutions for both residential and commercial properties
- Our treatments comply with British Standards and building regulations
- We offer free initial assessments with detailed remediation plans
Services
Damp Proofing
Our damp proofing specialists address rising damp and penetrating damp through chemical damp proof courses and tanking systems. We use silicone-based solutions to break capillary action in walls contaminated with hygroscopic salts. Our process includes vertical damp proofing, replastering with salt-resistant materials, and installing cavity drainage membranes for basements. Each treatment comes with a 20-year guarantee.
Woodworm Treatment
We target specific wood-boring beetle infestations including common furniture beetles and deathwatch beetles. Our treatments involve structural timber replacement, micro-emulsion insecticide application, and solvent-based preservatives. We identify infestation types through bore dust analysis and moisture content testing, ensuring appropriate chemical or physical interventions for both softwood and hardwood timbers.
Wall Tie Replacement
Our wall tie replacement service addresses corroded or failed ties causing structural instability. Using metal detectors and endoscopes, we locate defective ties and install stainless steel mechanical or resin-fixed replacements. We isolate original ties to prevent further expansion damage and ensure structural integrity through calibrated spacing and load distribution calculations.
Basement Waterproofing
We implement three waterproofing systems for below-ground spaces: cement-based renders, cavity drained membranes, and slurry coatings. Our cavity membrane systems include sump pumps to manage hydrostatic pressure, while cementitious tanking creates impermeable barriers. Each solution includes ventilation planning to prevent condensation in converted basement living spaces.
Rot Treatment
Our rot treatment specialists handle both dry rot (Serpula lacrymans) and wet rot infestations. We remove affected timbers with moisture content above 20%, apply fungicidal treatments, and install epoxy resin repairs for structural beams. Our approach combines moisture control strategies with chemical barriers to prevent recurrence in timber-framed buildings and historic structures.
Questions
What areas do you cover for damp proofing services?
We operate across London and the surrounding counties of Surrey, Kent, Essex, and Middlesex, providing specialist damp treatments for both residential and commercial properties.
How do you diagnose damp problems accurately?
We use thermal imaging cameras to detect moisture patterns and endoscopic surveys to examine wall cavities, ensuring precise identification of rising damp, penetrating damp, or condensation issues.
What is the guarantee on your damp proofing work?
All our damp proofing treatments come with a 20-year guarantee, subject to annual inspections and maintenance of ventilation systems in treated properties.
Can you treat severe woodworm infestations?
Yes, we handle all wood-boring beetle species, including severe infestations requiring structural timber replacement and comprehensive chemical treatments to eliminate larvae and prevent recurrence.
Do you provide surveys for property purchases?
Yes, we offer pre-purchase surveys identifying damp and timber issues with detailed remediation cost estimates, helping buyers make informed property investment decisions.
How much does a typical damp survey cost?
Our initial damp survey costs £150 (inc VAT) for standard properties, with detailed reports including treatment recommendations and cost breakdowns provided within 48 hours.
