Guaranteed Damp Course & Wall Preparation

Targeting rising damp with chemical DPC injection and specialised anti-salt rendering
Enquire About a Free Damp Assessment

Professional Damp Proofing and Preparatory Plastering

Rising damp requires a thorough, two-stage approach: stopping the water source and replacing the contaminated wall materials. In this project, our team executed a complete guaranteed damp course installation, followed by the essential anti-salt rendering.

The photos showcase the vital stages of preparation and treatment, including the removal of old, salt-affected plaster, the injection of the new chemical DPC, and the application of a breathable, damp-resistant base coat. The wall is now dry, stable, and ready for the final skim coat and decoration, which the client often completes themselves or with separate decorators.

  • Detailed damp assessment and diagnosis
  • Installation of a new chemical DPC (Damp Proof Course) with long-term guarantee
  • Removal of contaminated, hygroscopic plaster
  • Application of specialist waterproof rendering to suppress residual salts
  • Surfaces left clean, dry, and prepared for final skimming/finishing

The damp source has been permanently blocked, and the walls have been professionally restored to a dry, sound, and healthy state, ready for the cosmetic finish.

Project Gallery

Finished anti-salt render around doorway with garden view, Brighton damp proofing project Completed anti-salt render inside alcove cupboard Anti-salt render applied inside understairs cupboard Finished sash window reveal with anti-salt render, damp proofing project Window reveal finished with anti-salt render, exterior view Anti-salt render finished around bathroom corner with green metro tiles Freshly applied render coat drying on wall, damp proofing in progress Anti-salt render being applied around French doors and kitchen Patchy render mid-application around bay window, damp proofing works in progress Wall with plaster removed ready for chemical DPC injection Damaged salt-affected plaster and torn wallpaper before damp proofing treatment

Concerned About Damp or Mould in Your Home?

Don't let damp damage your property or health. Our experts diagnose the root cause and provide a long-term, guaranteed solution for rising damp and contaminated walls in Brighton & Hove.

Request a Free Damp Assessment

Why Clients Choose Rainbow for Damp Proofing

🔬

Accurate Diagnosis

We don't just treat the symptoms. We identify the source of the moisture to ensure a permanent fix, not a temporary cover-up.

🛡️

Guaranteed Solutions

Our chemical damp-proof course installations come with a robust guarantee for your complete peace of mind.

✨

Professional Restoration

We specialise in the essential anti-salt render and initial preparation, leaving your walls ready for the final finish.

Our Damp Proofing Process

1

Damp Assessment

We visit your property to identify the exact cause and extent of the damp, using professional metering equipment.

2

Tailored Quotation

You receive a clear, detailed quote outlining the necessary treatment, materials, guarantee, and total timeline.

3

DPC Installation & Prep

The new chemical DPC is injected, and contaminated plaster is removed to isolate the damp.

4

Anti-Salt Rendering

We apply specialist anti-salt render, leaving the wall dry, stable, and ready for your decorator's final skim/paint.

Damp Proofing & Plastering FAQs

What is a chemical DPC? +

A chemical DPC (Damp Proof Course) is a modern method where a water-repellent cream is injected into the mortar joint to create a barrier, preventing moisture from rising up the wall.

How long does the damp proofing process take? +

Installation of the DPC and the initial anti-salt rendering typically take 3-7 working days depending on the area size. The walls must then be left to dry before a final skim coat and decoration is applied.

Will you provide a guarantee for the damp work? +

Yes, our chemical DPC work comes with an insurance-backed guarantee to ensure you are covered against the return of rising damp in the treated area.

Why is specialist replastering necessary? +

After a DPC is installed, the old, contaminated plaster (which holds hygroscopic salts) must be removed. We apply a specialist anti-salt render coat to resist any residual moisture and prepare the wall for the final cosmetic skim.

Is it messy work? +

Any damp work involves dust and debris from removing old plaster. We take every precaution to contain dust, protect flooring and furniture, and keep the disruption to your home to an absolute minimum.

ad before editing this widget 1. Full paste-ready code only, no diffs/snippets. 2. Never rename existing identifiers without asking first. 3. All CSS is scoped under the single wrapper class .pts_cmp_damp26 inside one

Guaranteed Damp Course & Wall Preparation

Targeting rising damp with chemical DPC injection and specialised anti-salt rendering
Enquire About a Free Damp Assessment

Professional Damp Proofing and Preparatory Plastering

Rising damp requires a thorough, two-stage approach: stopping the water source and replacing the contaminated wall materials. In this project, our team executed a complete guaranteed damp course installation, followed by the essential anti-salt rendering.

The photos showcase the vital stages of preparation and treatment, including the removal of old, salt-affected plaster, the injection of the new chemical DPC, and the application of a breathable, damp-resistant base coat. The wall is now dry, stable, and ready for the final skim coat and decoration, which the client often completes themselves or with separate decorators.

  • Detailed damp assessment and diagnosis
  • Installation of a new chemical DPC (Damp Proof Course) with long-term guarantee
  • Removal of contaminated, hygroscopic plaster
  • Application of specialist waterproof rendering to suppress residual salts
  • Surfaces left clean, dry, and prepared for final skimming/finishing

The damp source has been permanently blocked, and the walls have been professionally restored to a dry, sound, and healthy state, ready for the cosmetic finish.

Project Gallery

Finished anti-salt render around doorway with garden view, Brighton damp proofing project Completed anti-salt render inside alcove cupboard Anti-salt render applied inside understairs cupboard Finished sash window reveal with anti-salt render, damp proofing project Window reveal finished with anti-salt render, exterior view Anti-salt render finished around bathroom corner with green metro tiles Freshly applied render coat drying on wall, damp proofing in progress Anti-salt render being applied around French doors and kitchen Patchy render mid-application around bay window, damp proofing works in progress Wall with plaster removed ready for chemical DPC injection Damaged salt-affected plaster and torn wallpaper before damp proofing treatment

Concerned About Damp or Mould in Your Home?

Don't let damp damage your property or health. Our experts diagnose the root cause and provide a long-term, guaranteed solution for rising damp and contaminated walls in Brighton & Hove.

Request a Free Damp Assessment

Why Clients Choose Rainbow for Damp Proofing

🔬

Accurate Diagnosis

We don't just treat the symptoms. We identify the source of the moisture to ensure a permanent fix, not a temporary cover-up.

🛡️

Guaranteed Solutions

Our chemical damp-proof course installations come with a robust guarantee for your complete peace of mind.

✨

Professional Restoration

We specialise in the essential anti-salt render and initial preparation, leaving your walls ready for the final finish.

Our Damp Proofing Process

1

Damp Assessment

We visit your property to identify the exact cause and extent of the damp, using professional metering equipment.

2

Tailored Quotation

You receive a clear, detailed quote outlining the necessary treatment, materials, guarantee, and total timeline.

3

DPC Installation & Prep

The new chemical DPC is injected, and contaminated plaster is removed to isolate the damp.

4

Anti-Salt Rendering

We apply specialist anti-salt render, leaving the wall dry, stable, and ready for your decorator's final skim/paint.

Damp Proofing & Plastering FAQs

What is a chemical DPC? +

A chemical DPC (Damp Proof Course) is a modern method where a water-repellent cream is injected into the mortar joint to create a barrier, preventing moisture from rising up the wall.

How long does the damp proofing process take? +

Installation of the DPC and the initial anti-salt rendering typically take 3-7 working days depending on the area size. The walls must then be left to dry before a final skim coat and decoration is applied.

Will you provide a guarantee for the damp work? +

Yes, our chemical DPC work comes with an insurance-backed guarantee to ensure you are covered against the return of rising damp in the treated area.

Why is specialist replastering necessary? +

After a DPC is installed, the old, contaminated plaster (which holds hygroscopic salts) must be removed. We apply a specialist anti-salt render coat to resist any residual moisture and prepare the wall for the final cosmetic skim.

Is it messy work? +

Any damp work involves dust and debris from removing old plaster. We take every precaution to contain dust, protect flooring and furniture, and keep the disruption to your home to an absolute minimum.