General FAQs

What areas do you cover?

We have five offices in Bournemouth, Southampton, London KensingtonReading and Brighton which means we cover the counties of Dorset, Hampshire, Wiltshire, London, Berkshire and Sussex. The team at Prokil will travel within a 40 mile radius of our bases but if you live outside this radius, the cost will be a little bit higher to account for our fuel costs.

Who should I trust to give me the right advice?

Prokil are proud members of the Property Care Association (PCA) who are leaders in their field. We suggest that you only take advice from certified professionals with recognisable qualifications. If your property has been affected by damp, rising damp, mould, ventilation, condensation, woodworm, dry or wet rot, you will need to seek advice from a professional company like Prokil.

At Prokil, we have the relevant qualifications to provide advice for customers on a wide selection of issues. Our surveyors hold qualifications in Structural Survey of Waterproofing (CSSW), Certificated Surveyor in Remedial Treatment (CSRT) and Certificated Timber Infestation Surveyor (CTIS). This allows us diagnose damp, rising damp, woodworm or fungal decay problem within properties and to recommend the remedial measures of controlling or treating said issues.

What information does a moisture meter provide?

Our surveyors will use an electronic moisture meter to measure the levels of moisture present in materials throughout a building. This enables us to ascertain if there is damp in your property.

What accreditations does Prokil hold?

Prokil are proud to be members of the Property Care Association (PCA). We are also accredited by ISSE, GPI, Sovereign, Trust Mark and Pam Ties Ltd.

How long has Prokil been trading for?

At Prokil, we have been trading for over 50 years. We are privately owned damp-proofing/timber treatment and building company with a dedicated team. Our aim has to been to provide a service that is fast, and effective for all of our clients in the South of England.

Are the surveyors at Prokil qualified?

All surveyors at Prokil have undergone extensive training to achieve the necessary qualifications in the industry. The most important qualifications for the industry include the CRST, CSSW and the CTIS. These qualifications allow our surveyors to assess and recommend treatments for any damp or timber issues that you may have.

What does a survey involve?

Our trained surveyors will visually inspect the outside of the property for defects. Internally, they will use an array of professional specialist tools to assess the affected areas. Access may be required to lofts and sub-floor depending on the nature of the survey. But most importantly, our surveyors will use their vast knowledge and experience to interpret the findings and provide a solution.

How long will it take before I receive my survey report?

Once the survey has been completed, we will endeavour to email you the survey report within two working days.

When can the required works start?

As soon as you receive your survey report, you should contact the closest office for available dates, and email your confirmation request.

Damp Proofing FAQs

Does Prokil deal with Damp Proofing?

Yes, Prokil specialises in all areas of Damp Proofing.

How do I know if I have damp in my property?

Damp is not always spotted early. Here are some telltale signs that your property has damp:

  • Smells damp and wet
  • Damp mould
  • Wall coverings are stained
  • Rust marks – on skirting boards, where nails / screws may be present
  • Rusting on angle beads – on corners of plasterwork
What causes damp?

Typically, it is caused by leaks or damage to the roof, windows or doors in your property which allows for water to penetrate your property. A lack of damp proofing treatment in a property is a key cause of damp as well as blocked sub-floor air vents which lead to damp environment under floors.

Read a full list of the causes of damp.

How do you treat damp?

Prokil assesses each case on its own individual merit as there is not one universal damp solution for all properties. The first thing we will do is look to find the root cause of the damp and then work out the recommendation afterwards.

How high can dampness rise?

With a defective or lack of damp proof course, ground water can rise via the capillary like action of the mortar joints. This can draw up the moisture from the ground like a wick.

Will the plaster have to be removed if I need a new damp proof course?

Yes, our team will have to remove the plaster as it is a key factor in curing rising damp as the plaster will have become contaminated with hygroscopic salts and minerals.

What are the risks of rising damp?

Rising damp can cause a multitude of problems such as:

  • Staining of walls usually up to 1m high
  • Rusting nails in skirting boards
  • Peeling paint work and wallpaper
  • Decaying of adjoining timbers
  • Plaster which has lost its key or blown
How do you treat rising damp?

Internally, the contaminated plaster will be removed usually to a height of 1m, and a new DPC is injected. A specialist render will be applied to the wall and finished with a multi-finish plaster.

What damp proof course do you install?

We use a hand injected DPC cream which is a fast and effective solution with none of the risk associated with other mechanical instalments.

How does the new damp proof course work?

The hand injected damp proof course we use is made from a saline and siloxane cream. The new damp proof course works by dispersing the water within the area of the DPC. It also lines the pores of the masonry thus reducing the surface tensions within these pores. This prevents ground water from rising in your property.

How do you know if you've got dampness in walls?

Dampness in walls makes itself known through a variety of different mediums that usually display themselves on the external surface of your walls.

Here’s what to look out for:

  • Mould
  • Tide marks up the walls
  • Discolouring of walls

View the full list of signs of damp in walls.

What causes dampness in walls?

As we’ve already mentioned, dampness in walls is usually caused by a structural defect. However, in other occasions, a damp patch may just be due to a faulty appliance or bad ventilation. There are three main types of damp that exist – rising damp, penetrating damp and condensation.

Read more about the causes of dampness.

What happens when dampness in walls is left untreated?

Discoloration and mould may only be the tip of the ice-burg. Actually inside the walls, we may have to deal with a beast of a completely different nature. If water manages to spread from the brickwork to the timber frame, you may have to face the fact that dry or wet rot has taken hold.

Read more about dampness in walls.

Woodworm FAQs

What is woodworm?

Woodworm is the larvae of a wood boring beetle. The most common species of woodworm in the UK are one of the following: furniture beetle (Anobium punctatum), Deathwatch Beetle (Xestobium rufuvillosum), House Longhorn Beetle (Hylotrupes bajulus) and the Powderpost Beetle (Lyctus brunneus).

How do I know if I have Woodworm?

A woodworm infestation can be detected by the following issues:

  • Dart-sized holes in the woodwork
  • You’ve spotted adult beetles
  • A fine powdery dust around the holes
  • Crumbly edges to joists and boards
Could I have woodworm and not realise it?

Yes, many homeowners don’t realise their home has been affected by woodworm.However, you may see a light dusting of sawdust on surfaces and small holes in timbers.

Is all woodworm harmful?

Not all Woodworm is harmful, should you have any cause for concern please call Prokil for more information.

Is woodworm seasonal?

Yes, from April to August but this does depend on the climate and type of woodworm.

Do you have any tips on how to determine if woodworm is active?

Yes, a simple method is during the winter, paint over any suspicious holes which look like woodworm or cover them over with tape. During the Woodworm breeding season May – September when the adult Beetles emerge, check if any new holes appear. If they do, please contact your local Prokil office.

If I suspect I have a woodworm infestation how quickly can Prokil attend my property?

We will always attend your property at your earliest convenience.

Dry Rot FAQs

What is dry rot?

There is only one true dry rot which is called Serpula Lacrymans which is a brown rot. It is a wood-destroying fungus that is found in most parts of the world.

Read more about dry rot.

What are the signs that I could have dry rot?

If you’ve got a case of dry rot, you’ll notice the following:

  • Cube-like cracking (this will identify the species to be brown rot)
  • Red rust spores on surface
  • A mushroom like odour
  • Grey-white stands
  • White and fluffy-looking Mycelium may appear
  • Yellowish brown fleshy bracket with a white margin

Click here for a complete list of the signs of dry rot.

What geographical areas does Prokil offer Dry Rot Treatment in?

Prokil will treat dry rot in properties located in all areas where we operate.

What causes dry rot in timbers?

Where humid conditions are present, and ventilation is either poor or non-existent, Serpula Lacrymans will thrive. Read more about the causes of dry rot.

Wet Rot FAQs

What is wet rot?

Any other wood-destroying fungus that is not dry rot. This can be further classified into white rot and brown rot.

Read more to discover how to identify wet rot.

What puts my property at risk of wet rot?

Wet rot has several common root causes like:

  • Defective rainwater goods
  • Leaks
  • Timber in contact with damp masonry
  • Inadequate ventilation to subfloors and lofts
How quickly can Prokil attend my property?

All our appointments are always arranged at your earliest convenience.

How to Treat Wet Rot?

First and foremost, it’s important that we source the cause of the damp. As we mentioned earlier, this can often be a structural defect or a leaky pipe. Once any defects have been resolved, we can begin to treat the wet rot itself.

Once wood has become infected with wet rot, there’s no simple way of ‘curing’ it, but in minor cases, our wet rot experts possess the skills and the knowledge. Read more about how to treat wet rot.

Condensation and mould FAQs

I have black mould growing on the wall surfaces - does this mean that I have rising damp?

Black mould growing on the wall surfaces is most likely caused by condensation rather than rising damp. To prevent the formation of mould it’s important that you wipe off any excess moisture as and when it appears.

Does the mould pose a risk to health?

The NHS states that “if you have damp and mould you are more likely to have respiratory problems, respiratory infections, allergies or asthma.” Damp and mould are known for their detrimental effect on the immune system.

Moulds produce allergens irritants and, sometimes, toxic substances, inhaling or touching mould spores may lead to an allergic reaction (sneezing, runny nose, red eyes and skin rash). Moulds can also cause asthma attacks.

I have never had a condensation problem before, so why now?

Condensation happens when water vapour in the air meets colder air or a cold surface, causing it to return into its liquid state. Our day-to-day activities create water vapour such as showering, breathing, drying laundry internally to boiling the kettle. The vapour will condense and cause problems if your home doesn’t have proper ventilation.

A change in the property is often a leading cause in properties. A change in the property or lifestyle is often a leading cause for mould formation to occur.

Can condensation be controlled?

Modern buildings are designed to cope with condensation due to new techniques but many older properties do not have the required ventilation. A property’s ventilation can be improved by simply opening the windows particularly in rooms like bathrooms and kitchens.

Prokil offers a wide range of energy efficient low maintenance ventilation systems which can be fitted with little or no disturbance to your home. If you’d like to know more please use the contact form at the top of the page or give us a call.

What are the causes of mould?

Whether you are a landlord, tenant or homeowner, here is what you should know about the causes of mould. Typically three main factors are recognised.

  • High humidity levels
  • Bad ventilation
  • Poor property maintenance

Read more for more information of the causes of mould.


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