Resolving Mould & Damp Problems in the UK

Damp is a common issue that can seriously affect the condition of your home, potentially leading to health concerns and structural damage if left untreated. At HydroStop, we specialise in diagnosing and resolving a wide range of damp-related problems, providing reliable and long-lasting solutions for homeowners.

Our services include Rising Damp treatment, Penetrating Damp repairs, Mould & Condensation control, and Basement Waterproofing & Conversions. With experienced specialists and proven treatment methods, we ensure every project is completed to the highest standards.

Trust HydroStop to deliver professional, efficient damp-proofing solutions that protect your property and restore a healthy living environment.

Protect your home today – book your free survey or speak to our team for expert advice.

Book A Free Survey Today

Damp Proofing

Our damp proofing specialists at HydroStop provide expert advice, detailed property surveys, and effective treatment solutions to protect your home from damp and mould problems.

Our Services Include:

✅ Rising Damp Treatment

✅ Penetrating Damp Solutions

✅ Mould & Condensation Control

✅ Basement Waterproofing & Conversions

✅ Up to 20-Year Guarantees

✅ Experienced and accredited local surveyors and technicians

Serving Greater Manchester, Derbyshire, Merseyside, Cheshire, Staffordshire, and surrounding areas, HydroStop are your trusted local specialists for all damp and mould issues.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey

Rising Damp

20-Year Guarantee

Most UK homes are built with a damp proof course designed to stop rising damp from affecting the interior of the property. However, problems can occur if the damp proof course has deteriorated, been incorrectly installed, or become “bridged” by high external ground levels. When this happens, moisture can travel up the walls, causing damage to plaster, decoration, and timber.

Our Solution

At HydroStop, we treat rising damp by injecting the affected walls with a high-performance silicone-based damp proof course to create an effective moisture barrier. In many cases, contaminated plaster will also need to be removed and replaced with specialist renovating plaster or our cavity wall membrane system, ensuring a long-lasting and reliable solution.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey

Penetrating Damp

20-Year Guarantee

Persistent damp patches on walls, staining, mould growth, and damaged decorations are common indicators of penetrating damp. This type of damp is often caused by issues such as porous brickwork or render, damaged pointing around windows, or faults with roofs, gutters, and other rainwater systems. If not addressed promptly, penetrating damp can lead to internal deterioration, timber rot, and even structural problems.

Our Solution

At HydroStop, our surveyor will carry out a detailed inspection of your property to locate the source of the moisture and determine the most effective repair strategy. Once identified, our specialists will remove any affected materials and install a physical waterproofing membrane to help the area dry quickly and prevent further damage. We will also repair any external defects and, where required, apply a protective water-repellent treatment to the exterior walls to stop moisture penetrating your home.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey

Condensation & Mould

20-Year Guarantee

Condensation is a common issue in many homes, often caused when warm, moisture-filled air comes into contact with cold surfaces such as walls, windows, or ceilings. Although insulation, draught proofing, and double glazing improve energy efficiency, they can sometimes trap moisture inside the property. This can lead to mould growth, damp patches, and damage to decorations and furnishings if not addressed.

Our Solution

At HydroStop, our surveyor will carry out a detailed inspection of your property to identify the source of the condensation and determine the most effective solution. Depending on the cause, this may include installing high-performance extractor fans, positive input ventilation systems, or addressing cold spots within the property to improve airflow and reduce moisture build-up.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey

Cellar & Basement Waterproofing

20-Year Guarantee

Basements and cellars are particularly vulnerable to damp and water ingress from the surrounding ground. Over time, this can lead to flooding, damaged walls, and harm to stored belongings. Proper waterproofing not only protects your property but can also transform unused space into a valuable and functional area of your home.

Our Solution

At HydroStop, we install advanced basement waterproofing systems designed to effectively control water penetration. Using specialist cavity wall and floor membranes, water is safely channelled to a drainage system or a sump and pump unit, keeping your basement dry, protected, and suitable for long-term use.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey

HydroStop Iso-Therm Insulation

20-Year Guarantee

Improve your home’s comfort and energy efficiency with Iso-Therm, an advanced internal insulation system designed to reduce heat loss and help prevent condensation and mould. Suitable for both renovations and new builds, Iso-Therm creates an effective thermal barrier on walls and ceilings, helping to lower energy bills while improving the overall health and comfort of your living environment.

Our Solution

While insulation, draught proofing, and double glazing can improve efficiency, they can also trap moisture inside the property. When warm, moisture-laden air meets cold surfaces, condensation can form, leading to mould growth and damage to decorations and furnishings.

At HydroStop, our surveyor will assess your property to identify the source of the issue and recommend the most effective solution. This may include installing high-efficiency extractor fans, positive input ventilation systems, or addressing cold spots within the home to improve airflow and reduce condensation.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey

Wood Worm & Rot Treatment

20-Year Guarantee

Rot and woodworm can develop when excess moisture and poor ventilation affect the timber within your property. These issues are often linked to untreated damp problems and, if left unchecked, can weaken important structural elements such as joists, floorboards, and roof timbers.

Our Solution

At HydroStop, we specialise in identifying the source of moisture and providing effective treatment for both timber rot and woodworm infestations. Our approach involves eliminating the cause of damp, treating affected timber with industry-approved preservatives, and repairing or restoring damaged areas to prevent further deterioration.

Whether you are dealing with dry rot, wet rot, or woodworm, our experienced specialists will provide reliable solutions to protect and preserve your property.

Book a Free Survey today or call 0151 348 7088

Book A Free Survey Today

What Happens During My Free Damp Survey

Our damp surveyors are fully trained specialists who use a range of advanced digital diagnostic tools to accurately identify the cause of damp and mould within your property. After the inspection, they will clearly explain their findings, highlight any potential risks to your home or health, and recommend the most effective solution.

At HydroStop, we provide expert advice on the causes, effects, and treatments of damp and mould, helping homeowners understand the problem and how it can be resolved. To make things easier, we offer a free damp survey for property owners so issues can be identified early and treated correctly.

Some of our recommended solutions can also improve your home’s energy efficiency, which may even qualify for reduced VAT rates under HMRC guidelines, helping to lower overall costs.

We offer a FREE home assessment for all property owners.

Book a Free Survey today or call 0151 348 7088

Book Your Free Survey Today

Frequently Asked Questions

  • Our free survey is a no-obligation inspection carried out by one of our experienced specialists. During the visit, we will carefully assess your property to identify the type and cause of any damp or mould issues affecting your home.

    Following the inspection, you will receive a clear explanation of our findings along with recommended treatment options, helping you understand the problem and the most effective way to resolve it.

  • Rising damp occurs when moisture from the ground travels upward through the walls of a property, usually affecting the lower sections of internal walls. This typically happens when the damp proof course is damaged, missing, or no longer functioning correctly.

    Penetrating damp, however, is caused by water entering the property from outside. This can occur through defective brickwork, damaged render, leaking roofs, blocked gutters, or poorly sealed windows and doors.

    At HydroStop, we provide specialist treatments for both rising damp and penetrating damp, ensuring the root cause is identified and the correct solution is applied to protect your home.

  • All of our work is supported by 25-year guarantees, giving you long-term confidence in the quality of our workmanship. With over 50 years of combined industry experience, our team is committed to delivering reliable, professional solutions that provide lasting protection and complete peace of mind.

  • Alongside our full range of professional treatment services, we also offer a dedicated online shop. Here you can purchase a selection of high-quality products designed to help prevent and treat damp and mould issues, including mould removers, anti-mould paint additives, and specialist cleaning solutions.


  • The time required to complete the work will depend on the severity and extent of the problem. Following our initial survey, our team will provide a clear timeline and detailed plan outlining the work involved. We always aim to work efficiently and professionally, minimising disruption to your home while ensuring the job is completed to the highest standards.

Get In Touch To Book Your Free Survey Today!