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Expertise & Advice

We help homeowners across Yorkshire improve their homes.

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Surveyors from THIAS independently survey your home.

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Friendly help and advice from experienced professionals.

Property Care

Condensation and damp problems?

Condensation is one of the most common causes of dampness in domestic homes and buildings, and is nearly always associated with black mould growth, which if left untreated will cause extensive damage to your home - and can potentially be a serious risk to the health of occupants, especially the young and old.

Obvious signs that indicate you may have a problem are:

  • Black mould growth
    Dampness and unsightly black mould


  • Stained walls and damp ceilings

  • Brickwork and plaster that is salting

  • Peeling wallpaper especially above skirting boards

  • Musty damp smells and odours

  • Rotten skirting boards and peeling paint

  • Unsightly black mould (Aspergillus niger)

Finding a long term solution starts with a survey and the right diagnosis

We provide help and advice, professional reports and genuine repair solutions for all types of homes that are suffering from rising or penetrating damp, condensation and mould problems.

We can provide help and advice - and recommend the most appropriate solutions, including:

  • Humidity testing
  • Damp detection using thermal imaging
  • Mould swab test and air testing

Condensation on a PVCu window with black mould
Condensation on a PVCu window
with black mould

Why you have a damp and
condensation problem

No two homes are the same and the following issues can have an effect on condensation and mould:

  • The size of your home
  • The age and type of construction materials used
  • The number of occupants in the home
  • The many changes that have been made to a typical home over the years

The problem arises because of high relative humidity, a lack of natural ventilation and, in most cases, cold external walls and surfaces. It is possible to reduce humidity by regulating activities like drying clothes indoors and opening windows. In most cases better ventilation is the solution.

Black mould growth
Black mould growth due to condensation

Today, many older homes are used in ways that were never anticipated when they were built. We create and trap more moist air in our homes by: replacing draughty wooden windows with modern double glazing; replacing coal fires with central heating; taking more baths and showers; and using appliances such as tumble driers.

What action to take

Homes can suffer dampness for a number of reasons. This can be down to one or more defects in your property: rising or penetrating damp or so called 'life-style' issues. Often it is a combination of factors. To effectively diagnose a damp and condensation problem we need to understand how your home is used and identify problem areas. By pinpointing the underlying causes we can put in place an effective course of action.

Our 'Building Defect & Damp Survey' is jargon free

Damp and condensation report

Our healthy homes survey is a jargon free report that explains what the problem are and what the priorities and options are.

Our survey will help you deal with the problems permanently and in a cost effective way.

Please note: A whole house approach looking at all aspects of dampness would normally be required when major renovation work is required, or when purchasing a home that has some clear issues with damp or other building defects.

Get the experts to cure your damp and condensation problems - contact us now:
Tel: 0845 603 9978 | Email:

Damp & condensation surveys and reports throughout Leeds, Harrogate and York - including all West Yorkshire and North Yorkshire. Established since 1993.

The Home Improvement Advisory Service (UK) Ltd. Unit 10 Langwith Mews, Collingham, Leeds, LS22 5JS. Tel 0845 603 9978.

Registered in England & Wales: 2862129 VAT Number: 613 4395 52

All material copyright © The Home Improvement Advisory Service (UK) Ltd 2014