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We treat a wide range of building damp at Premier Damp Proofing NI. View our services below and contact us for more information and to get a free price quote.


Found in houses and buildings across the country, the symptoms of dampness usually appear to be much the same. But in reality, there are many different types of damp, ranging from simple condensation, rising and penetrating damp to internal and external efflorescence. Even though all damp seems similar in terms of water spots, discolouration and mould, it is very important to correctly identify the root cause so that the problem can be properly resolved.

Our damp specialist covers everything from walls to floors. Their job just isn’t confined to old buildings, it has a much wider reach. They’ll get rid of that awkward condensation before it turns into something much bigger. The chances are your damp problems have probably crept up on you so you won’t have noticed the warning signs right away.

Damp Proofing: Services


A cavity wall tie is a component used to tie the internal and external walls together. It transfers the lateral forces across the cavity so that it is shared between the two walls.
Unfortunately older houses were built using galvanised mild steel fish tail type ties which over time can corrode causing horizontal and stepped cracking to the outer wall. When this happens and left untreated the problem will progressively deteriorate causing the outer wall to distort and bulge leading to even higher remedial costs.


A lot of the time rising damp is misdiagnosed. A leaking pipe, high external ground levels or rubble in the cavity can show the obvious signs caused by rising damp.
We understand how buildings are constructed and are trained to diagnose the true nature of the damp, saving our clients unnecessary work and money.
Rising damp is the term given to water which is drawn up by capillary action into a buildings structure. This water contains contaminating salts, chloride and nitrates which are not only unsightly but damaging to the wall plaster.

rising damp


It is an issue that can affect any building, and while it can often look harmless it can cause damage to a property even if it does not penetrate all the way through a wall. It is most commonly caused by problems with the roof, brickwork or windows.

Left untreated it can lead to more serious problems such as wet rot, dry rot or structural damage.


Condensation is caused by everyday living, from breathing to boiling a kettle. Condensation happens in almost every property, but it is also underestimated the damage it can cause. Without regular ventilation, condensation often results in unhealthy living conditions with black mould growth, peeling wallpaper, damage to fabrics and unpleasant musty damp smells within the property. With more severe issues, condensation can result in permanent damage to plaster and timber.

Common signs of condensation:

  • Windows steaming up

  • Water lying on window cills

  • Black mould growth in walls and ceilings

  • Peeling wallpaper

We can supply and fit a range of anti condensation units that will offer a ventilation solution for either one room or a complete property. They are designed to minimise if not eliminate condensation and dramatically improve indoor air quality.


While wet rot should not be confused with the more severe timber condition dry rot, it still has potential to cause substantial damage to your property. In order to grow, wet rot requires a regular source of moisture. This can be from sources such as defective plumbing, gutters, downpipes or eroded brick pointing.

Our surveyors can quickly identify the source of the moisture and any works which will need to be carried out to solve the problem.


Dry rot is a form of timber decay caused mainly by fungal growth. It is one of the most damaging conditions as it will keep on spreading and destroying timber if left untreated. Contrary to its name, dry rot needs moisture to grow. This moisture could come from many sources such as a drip from a leaking pipe, rain water from the roof, damaged gutters or down pipes.

It is important that our surveyor carries out a detailed inspection as quick as possible to correctly identify the type of fungal decay before treatment is recommended.


In Northern Ireland we have two main types of woodworm.
Common Furniture Beetle - Anobium Punctatum
This beetle is the culprit that leaves the small holes you see in your furniture, roof timbers, floor boards ect. The larvae feed inside the timber for upto five years before tunnelling their way out leaving small visible exit holes.

Wood Boring Weevil - Euophryum Confine
Wood boring weevils will only cause damage to decayed and damp timbers in both hardwoods and softwoods. They are found in areas such as poorly ventilated ground floors, cellars or wood in contact with damp solid floors and walls. If you have any concerns about woodworm contact us, our surveyor can diagnose the beetle and suggest the appropriate course of action.


Roofs and chimneys are exposed to all the elements and is it important to keep them in good condition. Any sign of water penetration, staining on the ceiling or on chimney breast walls should be addressed immediately before it leads to more serious problems.

We offer a comprehensive range of roofing work from replacing one slate to replacing a complete roof, from repointing a chimney to rebuilding a new chimney.

general buiding damp proofing


With over 30 years in the building trade we have vaste experience of building all types of structures and extensions. Get in touch today to make your dream addition a reality.


Over time weather and decay erodes the mortar, not only making it unsightly but can lead to more costly problems like penetrating damp. Repointing to most seems an easy job, but unfortunately very few people seem to get it right, usually using the wrong mortar, which then leads to more problems further on.

We have the patience, skill and knowledge to reinstate your walls back to their former glory.

lime repointing
A simple interior cornice between wall and ceiling


For damp proofing services in Northern Ireland, contact us at Premier Damp Proofing NI using the details below. 


07802 675521

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