Professional internal plastering and plasterboarding work in progress within a Southwick home.

Damp Proofing Treatments in Lewes, East Sussex

Call Your Local Lewes Expert
01273 957212
Serving Lewes & East Sussex

Fixing damp problems in Lewes homes

Ever walked into your hallway and caught that unmistakable musty scent? Or maybe you've noticed a suspicious dark patch creeping up the wallpaper in your Victorian terrace? Living in a place as historic and beautiful as Lewes has its perks, but the older housing stock—from the flint-walled cottages near the castle to the red-brick semis on the outskirts—can be a real magnet for damp. We've seen it all here at Portslade Plastering. Whether it's the aftermath of a particularly wet winter or just years of moisture slowly soaking through old mortar, we're here to help you get your home feeling warm, dry, and healthy again.

Portslade, Brighton & Worthing

01273 957212

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Preparation of an exterior wall for rendering, showing masked windows and exposed brickwork.
Why Choose Portslade Plastering

Expert Damp Proofing Treatments in Southwick & West Sussex

Honest damp surveys you can trust

One thing we tell all our neighbours in Lewes is that not every damp patch means a massive, expensive project. Sometimes, a "damp problem" is actually just a blocked gutter or a bit of "bridging" where garden soil has been piled too high against the external wall. That’s why we always start with a proper, no-nonsense survey. We'll come out, have a look at the property, and figure out if you’re dealing with rising damp, penetrating damp from the outside, or just condensation from the humid East Sussex air. We won't sell you a solution you don't need—just honest advice to protect your property’s value and your family's health.

Stopping rising damp in its tracks

If you've got white, salty powder appearing on your skirting boards or the plaster is starting to crumble at the bottom of the wall, you're likely dealing with rising damp. This happens when ground moisture travels up through the brickwork via capillary action. Since many older Lewes homes were built before modern damp proof courses (DPC) were standard, it's a very common sight. We can fix this by injecting a high-performance chemical DPC into the mortar line. This creates a waterproof barrier that stops the moisture in its tracks. After that, we’ll hack off the old, salt-contaminated plaster and replace it with specialist materials that won't let those pesky hygroscopic salts ruin your new paintwork.

Keeping out the East Sussex weather

Lewes is no stranger to wind-driven rain, and if your external render is cracked or your brickwork has faulty pointing, that moisture will eventually find its way in. This is called penetrating damp. It’s particularly common on exposed walls facing the prevailing winds. As approved PRB Systems contractors, we're experts at more than just the inside of your home. We can repair failed render or install modern, flexible silicone rendering systems that don't just look fantastic—they're highly weatherproof and allow your walls to breathe. It’s all about creating a "shield" for your home so you can stop worrying every time a storm rolls in from the coast.

Managing condensation and black mould

Ever wondered why your windows are streaming with water in the morning? In the colder months, condensation is a massive issue for Lewes homeowners. If that moisture has nowhere to go, it sits on the walls and leads to black mould, which isn't just ugly—it's a real health hazard. We can help you manage this through condensation control measures, such as installing Positive Input Ventilation (PIV) systems. These clever bits of kit keep the air moving, pushing out the damp, stale air and replacing it with fresh, filtered air. No more wiping down walls every morning and no more worrying about damp clothes in the wardrobe.

Why Choose Portslade Plastering?

Your trusted local specialists for expert damp proofing and professional plastering, delivering long-term protection for properties across Southwick, Brighton, and West Sussex.

Local Southwick & Adur Experts

We have a deep understanding of local building styles and coastal weather patterns affecting properties in Southwick, Portslade, and across West Sussex.

Approved PRB Contractors

As officially approved PRB Systems installers, our damp proofing and rendering treatments meet the highest industry standards for durability and performance.

Fully Insured & Reliable

We hold £1 million Public Liability Insurance, providing total peace of mind while our experienced team carries out repairs on your domestic or commercial property.

Free Quotes & Surveys

No hidden charges. We provide detailed, transparent, and completely free quotes for all damp proofing and plastering projects across the Sussex coast.

Fresh internal plastering and skimming work by Portslade Plastering in a Southwick home.

Local experts who value your home

We know that inviting tradespeople into your home can be a bit of a headache. That’s why we’ve built our reputation on being reliable, clean, and incredibly tidy. We don't just fix the damp and leave you with a mess; because we're specialist plasterers at heart, we ensure the final finish is flawlessly smooth and ready for you to decorate. We’re fully insured (up to #1 million) and cover a 20-mile radius around Lewes, so we’re never far away if you need a follow-up or have a question. Plus, being a local team means we actually care about the community—we’re not some faceless national franchise.

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Plastering Services Across Portslade, Brighton & Worthing: 01273 957212

What Our Clients Say About Portslade Plastering

"Fantastic service from the team at Portslade Plastering today. They were recommended by a friend for our kitchen skimming and I was very impressed. I’ll be using them again."

Celia Bennett

"Reliable and prompt - the team was able to view the property and provide options and quotes for our damp treatment on the same day I called. They carried out the work to a high standard and were very professional throughout."

Philip Day

"Highly recommended! Great price for the external rendering job. First class finish. Nothing too much for these lads, very polite, got the job done and cleaned up perfectly. It’s hard to find such honest tradesmen!"

Nick Mangnall

FAQ

Damp Proofing FAQs

Answers to common questions about our damp proofing treatments and specialist property repairs in Southwick, West Sussex and Portslade, Brighton & Worthing

How can I tell if my Southwick property has a damp problem?

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It isn't always obvious at first. You might notice a bit of a musty smell when you walk into a room, or see white, crusty salt patches appearing on your internal walls. Other common signs in local homes include peeling wallpaper, skirting boards that feel soft or look wavy, and black mould spots in the corners of the ceiling. Because Southwick is so close to the coast, the damp sea air can sometimes make these issues feel worse. It is always best to catch these signs early before they cause real damage to your timber or plaster.

What happens during a professional damp survey?

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When we visit your home for a survey, we are looking to find exactly where the moisture is coming from. We don't just guess; we use moisture meters to check the levels inside your walls and take a close look at the outside of the building. We check for things like cracked pipes, blocked gutters, or damaged brickwork that might be letting water in. Our goal is to give you a clear, honest picture of what is happening. We focus on practical Adur property repairs that solve the problem rather than just covering it up.

Is rising damp treatment a permanent fix for older houses?

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Yes, as long as the work is done correctly. Many older Victorian and Edwardian houses in West Sussex were built without a modern damp proof course, which allows water from the ground to soak up into the walls. As West Sussex damp specialists, we fix this by injecting a special cream into the mortar joint that creates a new waterproof barrier. Once we have removed the old, salt-damaged plaster and replaced it with a specialist render, your walls will stay dry. It is a reliable way to make an old house feel warm and dry again.

What is the difference between rising damp and penetrating damp?

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The main difference is the direction the water is travelling. Rising damp comes from the ground and usually only reaches about a metre up the wall. Penetrating damp is water getting in from the outside, often because of a fault in the building’s exterior. In Southwick, heavy wind-driven rain can be forced through tiny cracks in old render or gaps around window frames. We will identify which one is affecting your home during our visit so we can apply the right fix.

How do I manage condensation control in my flat?

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Condensation is one of the most common issues we see, especially in the winter. It happens when steam from cooking or showering hits a cold wall or window and turns back into water. While it isn't a structural leak, it can still lead to black mould and a damp atmosphere. We can show you how to improve the airflow in your home, perhaps by installing better extractor fans or vents. Sometimes, adding insulated plasterboard to an external wall can also help by making the surface warmer and less likely to collect moisture.

Will I need major Adur property repairs to fix a damp wall?

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Not always. People often worry that damp proofing involves a huge amount of mess and construction, but that is rarely the case. Sometimes the fix is quite simple once we find the leak. It might just be a case of repairing a bit of external pointing or clearing a blocked cavity. We take a lot of pride in being tidy, making sure we protect your carpets and furniture while we work and leaving the place clean once the job is finished.

Still have questions? Contact our Portslade, Brighton & Worthing Plastering experts today!

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Proudly Serving Portslade, Brighton, Worthing & The Sussex Coast

Portslade Plastering are your local wall finish specialists, dedicated to providing high-quality plastering, rendering, and damp proofing solutions across the Sussex coast. We have extensive experience working on Victorian restorations and modern developments throughout these key areas.

Our Key Service Areas

Portslade & Brighton

  • BN41: Portslade, Fishersgate
  • BN3: Hove, Aldrington, Hangleton
  • BN1: Brighton, Patcham, Withdean
  • BN2: Kemptown, Rottingdean, Saltdean
  • Peacehaven & Telscombe
  • And all surrounding Brighton postcodes

Worthing & West Sussex

  • BN11-BN14: Worthing, Broadwater
  • BN15: Lancing, Sompting
  • BN42: Southwick
  • BN43: Shoreham-by-Sea
  • Steyning & Upper Beeding
  • Covering the entire Adur & Worthing district

Your Local Sussex Specialists

  • PRB Approved rendering contractors
  • Experts in coastal damp proofing
  • Fully insured for domestic & commercial
  • Portslade based - local family business

Need Plastering Services?

Contact Portslade Plastering today for a free, no-obligation quote in Brighton, Worthing or the surrounding areas.

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If your specific location on the Sussex coast isn't listed, please don't hesitate to get in touch! We cover a 20-mile radius from our base in Portslade.

Our Portslade, Brighton & Worthing Service Coverage

Map shows our primary service areas across Brighton, Hove, Portslade and Worthing.

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