Structural Damp & Waterproofingfor Landlords & Rental Properties

Tanking, cavity drainage, and structural waterproofing

Quick answer

Structural damp and waterproofing covers specialist water ingress treatments for below-ground structures, basements, and properties with significant water management challenges. Methods include cavity drainage systems, tanking (internal and external), Type A/B/C waterproofing, and structural repairs to retaining walls and foundations. This is highly specialist work requiring surveyors with structural waterproofing qualifications.

Why Do Landlords Need Structural Damp & Waterproofing?

Direct answer

Below-ground and structural damp issues are among the most complex and expensive property defects. Incorrectly treated, they can cause progressive structural damage and create persistently uninhabitab…

Below-ground and structural damp issues are among the most complex and expensive property defects. Incorrectly treated, they can cause progressive structural damage and create persistently uninhabitable spaces. For landlords with basement flats or below-ground rooms in their rental portfolio, structural waterproofing is a long-term investment in property integrity.

What Should You Expect?

Structural waterproofing works are always preceded by a detailed survey and specification. Works may include installation of cavity drainage membranes, sump pumps, and drainage channels (Type C — 'drained protection'), application of waterproof renders and coatings (Type A — 'barrier protection'), or structural waterproof concrete (Type B). Works are typically guaranteed for 10–25 years.

Find a Structural Damp & Waterproofing Specialist Near You

All 9 listed specialists below are manually verified. Promoted listings appear first.

QUIRKS PROPERTY MAINTENANCE LTD

Ewloe Green, north-west · CH5 3AZ

We specialise in damp surveys, mould inspections, condensation investigations, timber decay and damp proofing solutions. All surveys are carried out by FOD Certified Surveyors (FODCS), providing clear reports, practical recommendations and honest advice. We are committed to delivering reliable service, expert workmanship and long-lasting solutions to protect your property.

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PEML Solutions

Northampton, east-of-england · NN2 8RG

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Damp Services Direct

Swindon, Wiltshire, yorkshire · SN25 3DJ

Damp Services Direct is a specialist damp‑treatment and property‑care provider delivering fast, reliable, and professionally executed solutions for homeowners, landlords, and commercial clients across the region. The company focuses on accurate diagnosis, effective remediation, and long‑term protection against all forms of damp, ensuring properties remain safe, dry, and structurally sound. Core services include: Damp Surveys & Diagnostics — Detailed inspections using industry‑standard moisture testing and reporting to identify rising damp, penetrating damp, condensation, and associated defects. Damp Proofing & Remedial Works — Installation of damp‑proof courses, membranes, tanking systems, and specialist coatings tailored to each property’s construction and condition. Condensation & Mould Control — Practical solutions including ventilation upgrades, insulation improvements, and targeted treatments to eliminate mould and prevent recurrence. Structural & Refurbishment Support — Integrated repair services for plasterwork, joinery, flooring, and decorative finishes affected by damp, restoring properties to a high standard. What sets Damp Services Direct apart: Clear, honest reporting with actionable recommendations Rapid response times and efficient project delivery In‑house expertise backed by building and refurbishment capability Customer‑focused service with transparent pricing and dependable aftercare

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City Damp Proofing Ltd

ENFIELD, london · EN1 4HB

With Over 35 Years Experience, Offering Free Quotes & Fully Insurance Back Guaranteed we undertake all works with our same unbeatable customer service & professionalism, and pride ourselves on our reputation for high standards in both work and customer care. City Damp Proofing Limited believe in 'quality' not 'compromise'. City Damp Proofing Ltd takes great pride in quickly and efficiently diagnosing, and fixing your problems, with minimum fuss and disruption, delivering outstanding results time and time again.

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W. Evans damp proofing

Southport, north-west · PR8 6AB

W. Evans Damp Proofing is a trusted damp proofing specialist serving Liverpool, Southport, Wigan, St Helens, Ormskirk, Preston and surrounding areas. We provide expert solutions for rising damp, penetrating damp, condensation, black mould, basement waterproofing, woodworm treatment, dry rot, wet rot, structural wall tie replacement and cavity wall tie installation. We carry out professional damp surveys, use high-quality materials, and deliver long-lasting repairs backed by a guarantee certificate. Whether you're a homeowner, landlord or business, W. Evans Damp Proofing offers reliable, affordable damp proofing services with honest advice and excellent customer care.

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AAA Damp control

Gtr Manchester , greater-manchester · Wn21qp

We are an experienced business with the customers coming first. We pride ourselves on our total commitment to helping people remedy condensation and damp issues

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Damp and Mould Solutions

London · NW10 1JH

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Hertford Drylining Ltd

Great Hormead, London · SG9 0NZ

Here at Hertford Drylining we are a proud family-run business, known locally for our fantastic service. We will arrange a visit so we can assess the damp issue and provide a quote for the works that need doing. This visit is free of charge. We cover London and the surrounding areas, and with our office in Great Hormead we also cover all areas of Hertfordshire. Main services (but not limited to): • Rising Damp Treatment • Penetrating Damp Solutions • Condensation Control • Waterproofing If you require any services that are not listed above, please enquire today to see how we can help you. Please contact us on 01992 271225, info@hertforddrylining.com or visit our website www.hertforddrylining.com We look forward to hearing from you.

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DampfixNE

Newcastle, North East · NE1 1JF

Mould Surveys (Awaab’s Law) • Damp & Moisture Diagnostics • Rising DampTreatment • Penetrating Damp Repairs • Repointing & External Repairs

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Frequently Asked Questions About Structural Damp & Waterproofing

What is the difference between Type A, B, and C waterproofing?
Type A (barrier protection) uses membranes and renders to keep water out. Type B (structurally integral protection) uses waterproof concrete. Type C (drained protection) accepts water ingress and manages it through cavity drainage and sump pumps. BS 8102:2022 covers below-ground waterproofing design — your contractor should specify which type is appropriate and why.
Does structural waterproofing require planning permission?
Internal waterproofing works to existing structures typically do not require planning permission. External waterproofing, basement excavation, and works affecting listed buildings or buildings in conservation areas may require consent. Always check with your local planning authority before undertaking significant structural works.
How long does structural waterproofing last?
Well-designed and properly installed structural waterproofing should last the life of the structure. Cavity drainage systems with quality sump pumps are designed for 25+ years. Membrane and tanking systems backed by specialist contractor guarantees typically cover 10–25 years.