Rentokil use the silicone injection method of damp proofing. Our technicians will determine the correct height for the installation of the damp proof course, taking into account the external and internal ground levels and the internal floor construction. They would then drill into the mortar joints or brickwork to the correct depth of the external wall where possible, inject the silicone fluid, and then re-point the mortar joint with sand and cement, to match your property as closely as possible.
We would only recommend re-plastering where there are obvious signs that the plaster has deteriorated i.e. if the decorations have been affected by damp or the plaster has become degraded. However, if we re-plaster the walls in conjunction with installing a damp proof course, then the plasterwork would be covered by our 30 year guarantee.
We recommend that you do not carry out permanent decoration i.e. wallpapering, for a period of 12 months after damp proofing. However, you can use a water-permeable emulsion paint after all visible signs of damp have disappeared, usually between 4 and 8 weeks.
No. All properties and their problems are unique and as such we will have to carry out an individual survey of your property to establish the full extent of any problem and provide you with the most cost effective solution.
Under normal circumstances the Quotation, which is a fixed price and not an estimate, is open for acceptance for 28 days. However, where arrangements cannot be concluded within this period, for example in the case of a house purchase, we are happy to extend this period.
If the company is still in business, then you should request that they return to carry out an inspection under the terms of their guarantee. However, if the company is no longer trading we would be pleased to carry out a damp survey at your request.
The continuing dampness & damp walls could be caused by a number of problems. For example the damp proof course may have failed, or an incorrect plaster may have been used, which did not include a waterproof additive. Alternatively the damp proof course may have been bridged i.e. by the external rendering being carried down to ground level or internal plastering which bridges the damp proof course or touches a solid floor concrete slab.
We will try to minimise any disruption to your property during damp treatment. Where possible, we will insert the damp proof course from the exterior of the property, but this will be dependent on a number of factors i.e. the external ground level, whether the internal ground floor is of solid construction, access to the walls etc. However, if we have to insert the damp-proof course from inside i.e. in the case of internal or party walls, we would require radiators and skirting boards etc. to be removed. We can, of course, arrange this for you. If our technicians are working inside your property, they will ensure that your property is adequately protected by laying polythene and dustsheets on your wooden floors or carpets and in walkways.
Our rising damp and fungal decay treatments are guaranteed for 30 years as are our treatments for woodworm. Cavity wall tie work is guaranteed for 25 years, and our tanking work is guaranteed for 10 years - all valid from the date of treatment. The guarantee is on the treated areas of your property and can be transferred to the new owner of your property.
We are founder members of the Property Care Association (formerly the BWPDA). The Property Care Association represents contractors, suppliers, surveyors and consultants specialising in timber and damp proofing in buildings. It promotes standards of workmanship and ethics, to maintain the highest standards in the industry. It also publishes Codes of Practice, guidance notes on training and Standard Specifications to cover all aspects of wood treatment and damp control.