Excellence in Building Preservation & Structural Waterproofing since 1959
Quigley Preservation Ltd is a contracting company covering the island of Ireland specializing in the design and application of remedial damp-proofing and timber preservation solutions in older properties and waterproofing of new structures.
Services
Structural Waterproofing
At Quigley Preservation Ltd, we provide comprehensive structural waterproofing solutions designed to protect buildings from ground water ingress. Our services include the design and installation of specialist waterproofing systems for basements, foundations, podium slabs, retaining walls etc. using a combination of Type A tanking membranes, liquid applied coatings and internal cavity drain membrane systems. We work on both new-build and existing properties, providing tailored solutions to suit the structural requirements and site conditions of each project. Using proven waterproofing technologies and high-quality sustainable materials, our aim is to deliver durable, reliable protection that safeguards structural integrity, creates dry and usable habitable spaces, whilst ensuring long-term performance.
Radon Membranes
At Quigley Preservation Ltd, we provide specialist radon membrane installation services for residential, commercial and industrial developments, helping to protect buildings and their occupants from the harmful effects of radon gas. Our experienced team installs high-performance radon-resistant membranes to form a continuous, gas-tight barrier beneath ground floor slabs and foundations, preventing radon gas from entering the building. We pay particular attention to critical details, including membrane overlaps, sealed joints, service penetrations, pipe entries and connections to damp-proof courses, ensuring the integrity and continuity of the protective barrier. We aim to deliver reliable, professionally installed radon protection systems tailored to each project's requirements and designed to comply with relevant building regulations.
Damp-Proofing
At Quigley Preservation Ltd, we provide specialist remedial damp-proofing services for older and period properties. Our experienced team identifies the underlying causes of dampness, including rising damp, penetrating damp and defective or deteriorated damp-proof courses, before recommending appropriate remedial solutions. Depending on the property's construction and condition, our services may include the installation of chemical damp-proof courses, crystalline tanking systems, the removal and replacement of salt-contaminated plaster, and specialist moisture-resistant plastering systems. By combining technical expertise with carefully selected materials and proven remedial techniques, we aim to deliver effective, long-lasting damp protection for buildings of all ages.
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Timber Preservation
At Quigley Preservation Ltd, we provide specialist timber preservation and remedial treatment services to protect against woodworm and timber decay issues in residential, commercial and historic properties. Our experienced team assesses timber affected by wood-boring insects and fungal decay, both dry rot and wet rot. When working in older and period properties, we adopt a sympathetic approach, prioritising the retention of original timber wherever practical and using carefully selected treatment methods to preserve the building's character and structural integrity. Our aim is always to provide honest and direct advice when it comes to timber decay and woodworm issues, ensuring our clients receive accruate information in order to make informed descisions.
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Dry Rot Treatment
At Quigley Preservation Ltd, we provide specialist dry rot identification, treatment and remediation services for residential, commercial and historic properties, helping to protect buildings from the serious structural damage caused by fungal decay. Dry rot, commonly associated with the fungus Serpula lacrymans, can cause significant deterioration of structural timbers, including floor joists, roof timbers and other concealed timber elements. Our experienced team carries out thorough inspections to establish the extent of the infestation, identify contributing moisture sources and develop a targeted remedial treatment programme. Our services include the careful removal of severely affected timber, specialist fungicidal treatments where appropriate, treatment of affected masonry where justified, and the repair or replacement of damaged structural components. Particular attention is given to eliminating the route cause of the issue where possible in conjunction with remedial intervention. When working in older and period properties, we adopt a sympathetic approach, prioritising the retention of sound original timber and minimising unnecessary disturbance to historic building fabric. By combining technical expertise, proven treatment methods and high-quality workmanship, we deliver effective, long-term dry rot remediation solutions designed to restore structural integrity and minimise the risk of future outbreaks.
Repointing Steps
At Quigley Preservation Ltd, we provide specialist repointing and joint repair services for granite steps designed to restore the weather resistance, durability and appearance of the steps. Defective or loose pointing is carefully raked out to an appropriate depth, taking care to avoid damage to the surrounding granite, before the joints are thoroughly cleaned and prepared to ensure effective adhesion of the replacement materials. We utilise specialist fibre-reinforced repair mortars to provide enhanced strength, durability and crack resistance, alongside high-performance flexible sealants in movement joints and other locations where flexibility is required to accommodate thermal expansion and structural movement. The new mortar is professionally applied, compacted and finished to match the existing joint profile, followed by appropriate curing and final inspection. Through meticulous preparation, specialist materials and skilled workmanship, we deliver long-lasting repointing solutions that improve weather resistance, reduce moisture ingress and help preserve the structural integrity and appearance of the building.As part of our service, we powerwash the steps to help restore them to their original apperance.Â
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Podium Slab Waterproofing
At Quigley Preservation Ltd, we provide specialist podium slab waterproofing solutions for residential, commercial and mixed-use developments, including podium decks, multi-storey and underground car parks, balconies, terraces and other exposed concrete structures. Our services include the preparation and treatment of concrete substrates, installation of high-performance waterproofing membranes and liquid-applied systems, and the careful detailing of critical areas such as movement joints, drainage outlets, upstands, service penetrations and wall-to-slab junctions. We utilise specialist waterproofing technologies, including flexible, crack-bridging and traffic-resistant systems, selected to withstand the demands of pedestrian and vehicular traffic, structural movement, standing water and prolonged exposure to the elements. For car parks, we provide durable waterproofing and protective coating solutions designed to resist water ingress, de-icing salts, abrasion and vehicle-related wear, while our balcony and terrace systems offer reliable protection against moisture penetration and weather-related deterioration. Working closely with main contractors, designers and project teams, we deliver professionally installed, long-lasting waterproofing systems that protect the structural integrity of the building, safeguard occupied spaces below and extend the service life of exposed concrete structures.
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Condensation & Mould
At Quigley Preservation Ltd, we provide specialist consultancy and advisory services for condensation and mould-related issues in residential properties. Our consultancy service focuses on identifying the underlying causes of excessive moisture, surface condensation and mould growth through detailed property inspections and assessments of internal environmental conditions. We examine contributing factors such as inadequate ventilation, high relative humidity, insufficient insulation, thermal bridging, heating patterns and building fabric defects to establish the most likely causes of the problem. Where appropriate, we utilise specialist moisture-measuring equipment, temperature and humidity monitoring to support our findings. Following our assessment, we provide independent, practical recommendations aimed at targeting the route causes and treating affected areas. Our role is strictly consultative, providing professional inspections, technical assessments and remedial recommendations rather than undertaking mould removal, cleaning or associated installation works. Through our specialist knowledge of building pathology and moisture management, we help property owners, landlords, managing agents and building professionals make informed decisions and develop effective, long-term strategies for maintaining healthier internal environments.
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