Damp Proofing Services

Reliable Protection for Your Property

Damp can cause serious damage to a building’s structure, appearance, and long-term value, especially in older or below-ground properties. At Apex Lofts & Construction, we offer professional damp proofing solutions that protect your property from moisture-related issues and provide lasting peace of mind.

Specialist Damp Proofing Solutions for Long-Term Results

Targeted Treatments for Basements, Cellars & Period Homes

We specialise in tackling damp in more complex environments, including basements, cellars, and heritage properties. These spaces often require tailored solutions that account for age, materials, and environmental conditions.

Combatting Rising Damp, Penetrating Damp & Condensation

Whether you’re dealing with visible signs of rising damp, water ingress from the outside, or excess moisture and condensation indoors, our experienced team can identify the source and apply the appropriate remedy.

Damp proofing

What Our Clients Say

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Charlotte Taylor profile picture
Charlotte Taylor
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⭐️⭐️⭐️⭐️⭐️ Really pleased with our new garden office and the finished result. The team did a great job and we’re very happy with the quality of the work and how the space has turned out. As with most building projects, there were a couple of things that needed resolving along the way, but everything was handled professionally and the team worked with us to make sure we were happy with the outcome. They were friendly, helpful and responsive throughout, and clearly took pride in getting everything right. We absolutely love the finished space and wouldn’t hesitate to recommend them.
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Christophe profile picture
Christophe
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We used Apex to carry out a full house refurbishment with loft conversion. They were very professional throughout the whole process delivered a high quality project. Would highly recommend.
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Kakurusi Kasereka profile picture
Kakurusi Kasereka
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Cet en forgent qu'on devient forgeron.
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rosie stowell profile picture
rosie stowell
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Apex did our loft conversion this year and we would definitely recommend them. They were really hard-working, efficient, respectful and produced a great final finish. We also appreciated being kept well informed as the job progressed. Thanks to all the guys at Apex, great job.
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Joseph Harrington profile picture
Joseph Harrington
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Loft conversion. Very happy with the all the work done. On time on budget and really good to deal with theoughout.
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Jamie Pugh profile picture
Jamie Pugh
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Apex were great to work with and we are really pleased that we chose them to do our loft conversion. Easy communication and clear payment schedule. Carpenters were particularly great. No question or query from us too much of a problem. They were great to work with a would definitely recommend them. We’re really happy with our new loft.
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Bec Atchou Reynolds profile picture
Bec Atchou Reynolds
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Before I chose a builder, I did a lot of research. When I say a lot, I mean I asked for recommendations of builders from all of my friends, did loads of online research and checked many, many reviews. Out of all the builders I checked, Apex had the best track record, the best reviews and looking at their website, fantastic looking work. From the moment we had the first meeting until the build was finished, the team were polite, professional, flexible, patient and very hard-working. They did the whole job (complete renovation of our bungalow ) in eight weeks some of the staff even working over Christmas. The finished result is amazing. We are so happy with our new home. I would not hesitate to recommend Apex to anyone looking for a builder. We had been stung by builders in the past, so if you are looking for a reliable professional company to work on your house, look no further!
Damp proofing

Our Approach to Damp Proofing

Detailed Surveys & Moisture Diagnostics

Every job begins with a comprehensive assessment. We survey the affected areas and use moisture readings and inspection methods to determine the type and extent of the damp issue.

Tailored Treatment Plans Using Proven Systems

There’s no one-size-fits-all solution for damp. We tailor each treatment plan to suit the construction type, location, and severity of the problem.

Expert Installation Backed by Guarantees

All work is carried out by skilled professionals to a high standard of workmanship. Once complete, we provide the appropriate guarantees so you can move forward with confidence.

Types of Damp We Treat

Rising Damp

Moisture travelling up through walls from the ground, often due to failed or missing damp proof courses. Common in older buildings.

Penetrating Damp

Water ingress through external walls, roofs, or structural defects, often worsened by poor maintenance or exposure to the elements.

Condensation & Humidity Control

Often caused by poor ventilation or insulation, condensation can lead to mould, damp patches, and health concerns.

Damp in Basements & Below-Ground Areas

Below-ground spaces are particularly vulnerable to lateral damp and water ingress. We offer targeted protection to make these areas dry and usable.

Why Choose Apex?

We Maximise Your Property’s Potential

From loft conversions to full refurbishments, we help you make the most of your home’s space, flow and value, with solutions designed around how you live.

Reliable, Experienced & Local

With decades of hands-on experience and a West Sussex base, we’ve transformed countless homes and commercial spaces throughout the region.

Craftsmanship You Can Trust

Our in-house team and specialist partners deliver high-quality results backed by a commitment to compliance, attention to detail, and long-term performance.

Our 6-Step Damp Proofing Process

Site Survey & Damp Assessment

We carry out an in-depth inspection to identify the root cause of damp, using moisture detection tools and visual checks to assess the severity and affected areas.

Diagnosis & Treatment Proposal

Based on our findings, we provide a clear explanation of the issue and propose a tailored solution that addresses the specific cause and type of damp.

Quotation & Scope of Works

You’ll receive a detailed quotation and breakdown of the required work, with everything clearly outlined before we begin.

Damp Proofing Installation

Our team carries out the treatment using industry-proven methods suited to the property type and condition, ensuring the highest standard of work throughout.

Handover & Recommendations

Once the work is complete, we conduct final checks and provide clear advice on aftercare, maintenance, and any ventilation or structural improvements that may help prevent future issues.

Aftercare Support

Should you have any questions after the work is completed, we’re here to help. Our ongoing support ensures your property continues to benefit from effective damp protection.

Book a Damp Survey or Consultation

Speak With Our Damp Proofing Specialists

If you’ve noticed signs of damp in your home or commercial property, don’t wait for it to get worse. Speak with Apex Lofts & Construction to arrange a survey or consultation with a member of our team.

Frequently Asked Questions

Common signs include peeling paint or wallpaper, musty smells, black mould, salt deposits on walls, or damp patches that don’t dry out. If you notice any of these symptoms, a professional survey can help identify the cause and appropriate solution.

Period homes often lack modern damp proof courses or insulation, making them more vulnerable to rising damp, condensation, and penetrating moisture through solid brick or stone walls. We specialise in treating damp in older and character properties while preserving their integrity.

Not always. While a damp proof course may help in cases of rising damp, other forms, such as condensation or penetrating damp, require different approaches. We assess the cause before recommending a treatment.

Generally, no. Most damp proofing work is considered internal maintenance. However, if your property is listed or in a conservation area, you may need listed building consent. We’ll advise on any permissions required during the survey stage.

This depends on the type of damp and the size of the area affected. Some treatments can be completed in a few days, while more extensive basement or structural works may take longer. We provide a project timeline as part of our proposal.

Yes. We regularly work in below-ground environments where lateral moisture and poor drainage cause persistent damp problems. We offer effective solutions to keep these areas dry, usable, and protected long-term.

It can help, but condensation is usually a ventilation or insulation issue. We assess the root cause and can recommend additional improvements such as passive ventilation or changes in heating strategy to reduce moisture buildup.

In most cases, yes. We aim to minimise disruption and carry out work as efficiently and safely as possible. If an area needs to be isolated during treatment, we’ll advise you in advance and plan accordingly.

Our treatments are designed for long-term protection and include recommendations to prevent future moisture issues. Like any building system, effectiveness also depends on ongoing maintenance and ventilation, which we will advise on post-installation.

Yes. We provide appropriate guarantees for our work depending on the treatment type and scope. This gives you peace of mind that your property is protected well into the future.