Promoted
Quoins Damp Surveyors
Bishop's Stortford, Hertfordshire
Quoins Damp Surveyors provides independent damp and mould investigations for homeowners, buyers, landlords, letting…
- ✓ Insured
- ✓ Awaab's Law
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.
Get free quotes from verified specialists near you
Free, no obligation — your details only go to the specialists you choose.
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.
Promoted
AntiDamp
Wigan
AntiDamp are Damp & Mould correction specialists based in Wigan, covering the north west. We specialise in fixing damp…
- ✓ Insured
- ✓ Awaab's Law
Promoted
Alpine Property Surveys Ltd
East Morden, Dorset
- ✓ CSRT
- ✓ Insured
- ✓ Awaab's Law
Dry Guard Damp & Mould
Nottingham
At Dry Guard Damp & Mould, we help homeowners, landlords, letting agents and property managers tackle damp, mould and…
- ✓ PCA
- ✓ RICS
- ✓ CSRT
- +2 more: Insured, Awaab's Law
SBS Building & Damp Proofing
Sheffield
- ✓ Insured
- ✓ Awaab's Law
KC Home Solutions ltd
Crawley Down, Crawley, West Sussex
Established in 2023, our family-run property maintenance business brings over 20 years of industry experience to every…
- ✓ Insured
- ✓ Awaab's Law
Mothline presentation ltd
Southampton
Southampton's Most Trusted Damp & Preservation Specialists No guesswork. No upselling. Just honest, survey-led damp…
- ✓ Insured
- ✓ Awaab's Law
Sovereign Preservation
Plymouth
We are a family run business covering Devon And Cornwall. Specialising. Damp treatment , plastering internal and…
- ✓ Insured
- ✓ Awaab's Law
Anticc roofing and building Ltd
Chatham, Kent
We are members of the Federation of master builders members of TrustATrader members of Checkatrade Google guaranteed…
- ✓ Insured
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.