APT have been providing stone cleaning for over 30 years. We specialise in cleaning, restoration and conservation of sensitive stone. Our sympathetic cleaning methods, allows us to work with some of the most prestigious organisations like, English Heritage, Historic England, Welsh Heritage and Historic Scotland.
Using Soda Blasting and Heated Steam Cleaning, we clean stone in a sympathetic and non-damaging manner. We are trusted by architects, surveyors and conservation authorities and we are regularly relied upon for our expertise in stone cleaning and restoration.
We take the time to assess your unique requirements, including your processes, downtime, and long-term goals. Our commitment to helping our clients achieve their objectives is unwavering, and we always strive to provide customised solutions that align with their business needs.
Stone cleaning is crucial for preserving the health of the surface of the stone. Contractors have historically offered several stone cleaning techniques without proper consideration for their impact or the range of natural materials. Outdated methods like high pressure jet washing can cause permanent damage the substrate material and compromise its structural integrity, leading to expensive repairs.
Buildings are made up of various materials, such as sandstone, limestone, granite, brick, and terracotta, bound together with lime mortar. Other factors like colour, texture, tooling, form, and decay can further complicate the cleaning process. After cleaning, incidents of resoiling, iron mobilisation, efflorescence, vandalism, and graffiti may arise.
We suggest using contractors have the right accreditations and use approved cleaning equipment. Our teams are recommended by some of the most prestigious organisations and we would provide a full site survey on your requirements. APT operate nationwide around the schedule of your organisation to avoid disruption.
Steam cleaning systems provide gentle cleaning and restoration for all conservation projects. Steam cleaning produces outstanding results, without causing damage to the substrate material.
Heated steam cleaning uses low-pressure, super-heated steam up to 120 degrees to remove all unwanted surface contaminants from the stone.
Low-pressure super-heated steam cleaning works to remove:
Our team of highly experienced stone cleaners specialise in non-abrasive methods that can effectively remove the toughest stains and organic matter, including fungi, algae, and lichen. These methods are carefully adjusted to meet the appropriate pressure levels, and they work delicately to kill biological spores and sterilize the stone, preventing further infestations.
In addition to removing surface coatings like oil, grease, vermin staining, graffiti, and biological matter, our eco-friendly and gentle techniques are approved by conservation cleaning experts for historic structures and buildings under conservation.
Here’s how we helped Welsh Heritage with their stone cleaning at Chepstow Castle:
“We were so impressed at the capabilities of the machine we have granted APT authority to be used on the Cadw sited throughout Wales as and when required. We at Opus international consultants (were Cadw consultants) have sent a memorandum to all its offices to confirm inclusion in any job specification drawn on behalf of their client Cadw where surface cleaning was recommended or required.”Richard Turner
Choose APT for your stone cleaning needs and rest assured that you won’t be taking any risks. As specialists in the field, we draw on our background as a chemicals company to select the right products for the job.
Our team is fully accredited and equipped to handle even the most complex stone cleaning challenges, with detailed site surveys and site-specific RAMS.
Our eco-friendly, biodegradable, and non-toxic cleaning products and methods ensure that our stone cleaning services are safe for the environment and will not damage the surface.
With experience cleaning a variety of stone types, including Portland Stone, Bath Stone, Sand Stone, Granite, and Marble, we provide tailored solutions to meet the unique requirements of each stone type and deliver exceptional results.
Trust a company with a proven track record – choose APT for your stone cleaning needs.
Stone cleaning is a specialist cleaning service and should only be carried out by accredited professionals. We use two specialist and gentle cleaning methods to effectively clean stone without causing harm to the surface. Using old fashioned stone cleaning methods could cause more damage than good is likely to cause long-lasting damage to the surface. Damaged surfaces quickly lead to lacking structural integrity and causing costly repairs.
When it comes to cleaning stone, building owners and managers are often faced with a dilemma – to clean stone or not to clean stone. Without cleaning stone, your building will not only continue to look unkept, but lichens, bird lime and other pollutants can be damaging to the stone surface having accumulated over the years. Stone cleaning services must be specialist, ensuring that they are using suitable stone cleaning products, whilst being sympathetic to the stone surfaces, ensuring that they remain undamaged. Commonly, companies just use abrasive discs, acid for stone cleaning, high pressure washing and grit (sand blasting) for stone cleaning.
At APT, we’re dedicated to delivering superior stone cleaning services for buildings across the UK. With our advanced cleaning products and proven techniques, we offer affordable solutions for revitalizing the beauty and hygiene of your building’s stonework. This not only improves its appearance but also provides long-term cost savings.
Our specialists are available to answer any questions you may have and offer a complimentary on-site survey if you’ve already chosen to use our services. So why wait? Contact us today to experience the APT difference and discover how we can transform the look of your building’s stonework.