High-quality white external rendering on a home in Sussex by Portslade Plastering.

External Wall Insulation in Crawley, West Sussex

Call Your Local Crawley Expert
01273 957212
Serving Crawley & West Sussex

Make Crawley's homes warmer with external wall insulation

Ever wondered why some rooms in your house feel like an icebox no matter how high you crank the heating? Many of our neighbours in Crawley, especially those living in older solid-wall properties near the town centre or out towards Ifield, are fighting a losing battle with heat loss. Traditional brickwork looks great, but it's often terrible at keeping the warmth where it belongs—inside your home. That's where External Wall Insulation (EWI) comes in. Think of it as a high-performance thermal jacket for your property. By wrapping the outside of your house in professional-grade insulation, we don't just make it look brand new; we fundamentally change how it handles the West Sussex winter. At Portslade Plastering, we've spent years helping homeowners across the county transform draughty houses into toasty, energy-efficient homes.

Portslade, Brighton & Worthing

01273 957212

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External rendering project in progress with scaffolding on a blue house
Expert EWI Solutions

Why Choose Portslade Plastering for External Wall Insulation in Southwick?

Stop throwing money out the window

Most homeowners we speak to in Crawley are tired of watching their energy bills skyrocket. Did you know that up to 45% of a building's heat can escape through uninsulated solid walls? It's literally like throwing cash out the window. When we install an EWI system, we're targeting something called 'thermal bridging'—those annoying cold spots where heat leaks out through the structure. By dramatically lowering the U-value of your walls, we help you keep that expensive heat trapped inside for longer. Whether you're in a Victorian terrace or a post-war semi, the results are usually felt immediately. You'll find yourself reaching for the thermostat less often, and your home's EPC rating will get a healthy boost, which is always a bonus if you ever decide to sell.

Approved PRB systems installers for peace of mind

We don't believe in cutting corners, which is why we're officially approved contractors for PRB Systems. They're leaders in high-performance renders, and using their materials means we can offer you a finish that's as tough as it is beautiful. Unlike old-fashioned sand and cement renders that can crack and flake, our modern systems—like silicone or monocouche renders—are through-coloured. This means the pigment is mixed right into the render itself, so you'll never have to pick up a paintbrush again. It’s a low-maintenance solution that’s perfect for the coastal-adjacent weather we get here in Sussex. From the initial mechanical fixings of the insulation boards to the final decorative layer, our team handles the whole programme with the kind of precision you’d expect from local experts who care about their reputation.

Minimal disruption to your daily life

One of the biggest worries people have about insulation is the mess and the fuss. The beauty of external wall insulation is that, as the name suggests, it’s all done on the outside. You won't have to move furniture, take down curtains, or lose any of your precious internal floor space. We set up our scaffolding, get to work, and leave your interior exactly as it was. It’s a far less invasive process than internal dry lining, and you won't have to deal with plaster dust in your tea for weeks! We pride ourselves on being clean and tidy tradespeople. We’ll protect your garden, your driveway, and your windows, and we always make sure the site is spotless once we’ve finished transforming your Crawley home.

Get your free no-obligation survey today

If you're ready to make your home more comfortable and cut down those monthly outgoings, we'd love to chat. We provide free, detailed quotes across the whole Crawley area, from Maidenbower to Tilgate and beyond. We’ll pop round, take a look at your property’s current condition, and explain exactly how an EWI system would work for you. There’s no hard sell—just honest, professional advice from a team that's fully insured with £1 million in Public Liability cover for your peace of mind. Whether you need a full external overhaul or you’re also looking for internal skimming or damp proofing treatments, we’ve got the skills to help. Give our friendly team a call on 01273 957212 and let's get your project started.

Why Choose Portslade Plastering for External Wall Insulation?

Your local, energy-efficient EWI specialists providing high-performance insulation and rendering solutions for homes across Southwick, Portslade, and the Sussex coast.

Local Southwick & Sussex Experts

We have a deep understanding of local building styles and the specific weatherproofing needs for properties along the Sussex coast.

Approved PRB Contractors

As officially approved PRB Systems installers, we use industry-leading insulation boards and high-performance through-colour renders.

Superior Energy Efficiency

Our EWI systems significantly improve thermal performance, reducing heat loss through walls and lowering your annual energy bills.

Transparent & Insured

We provide clear, detailed, and free no-obligation quotes with no hidden fees, backed by full £1 million Public Liability Insurance.

Professional external rendering project with scaffolding on a white house in Sussex.
Call Now for a Free Quote

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

External Wall Insulation FAQs

Answers to common questions about our energy-efficient External Wall Insulation (EWI) and rendering services in Southwick and across Portslade, Brighton & Worthing.

How long does new plaster take to dry?

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It usually takes about three to five days, but this depends on the weather and how much air is moving through the room. You will see the plaster change from a dark wet look to a light, uniform pink. It is best to wait until it is completely light pink before you start painting.

Do I need to clear the room before you start?

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It helps if the room is as empty as possible so we have space to work and move our ladders safely. We always bring plenty of heavy-duty dust sheets to protect your floors and any large bits of furniture that cannot be moved.

Can you plaster over my old Artex ceiling?

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Usually, yes. We can either scrape back the high points and skim over it, or if the texture is very deep, we might suggest over-boarding it with new plasterboard first. We will check the condition of the ceiling and give you the best advice for a long-lasting finish.

What is the benefit of a PRB render system?

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PRB systems are designed to be flexible and breathable. In coastal areas like Worthing and Portslade, this is very important because it helps prevent cracks and stands up to the salt air much better than traditional materials. Plus, because they come in various colours, you won't need to paint them.

How do I know if I have rising damp or just condensation?

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Rising damp usually leaves a tide mark on the lower part of the wall, often with some salt staining or peeling wallpaper. Condensation usually shows up as black mould in corners or behind furniture where air does not move. We can come out, take a look with a moisture meter and tell you exactly what is going on.

Is your work guaranteed?

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We take huge pride in what we do. If there is ever an issue with the workmanship, we will come back and make it right. Our use of high-quality materials also means the finish is built to last for many years.

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.

Call Us Today

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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