Professional cleaning of windows, skylights, and glazed surfaces at all heights to improve appearance, visibility, and building presentation.
• Improves the appearance of buildings inside and out
• Keeps windows and skylights clear, bright, and free from build-up
•Helps extend the life of glazing by removing damaging deposits
• Improves natural light levels within buildings
• Maintains a clean, professional environment for occupants and visitors
UK-Based Specialists in Window and Skylight Cleaning
APT ICC provides professional window and skylight cleaning services across England and Wales, supporting hotels, universities, office buildings, high-rise developments, factories, and other commercial and industrial properties. The service covers the safe and effective cleaning of windows, rooflights, skylights, and glazed surfaces at all heights, including areas that are difficult to access.
Window and skylight cleaning is sometimes referred to as high-level window cleaning, commercial window cleaning, or glazed façade cleaning. While the terminology varies, the purpose remains the same: to keep glass and glazed surfaces clean, clear, and well maintained. Regular cleaning helps improve building appearance, maximise natural light, and prevent long-term damage caused by dirt, pollution, and mineral deposits.
APT ICC carries out both routine maintenance cleaning and more detailed window polishing. Polishing is used where limescale build-up, staining, or ingrained run marks have developed over time, restoring clarity and improving the overall finish of the glass. In addition to windows and skylights, cleaning can also be carried out on solar panels to help maintain efficiency by removing dirt and environmental debris.
Works are carefully planned to suit each site and building layout. Cleaning can be carried out at ground level or at height using safe access methods appropriate to the environment, allowing works to be completed efficiently on live sites with minimal disruption to occupants and operations.
With over 35 years of experience, APT ICC is trusted to deliver window and skylight cleaning across a wide range of sectors. Recent projects include high-level window cleaning at the Halo Building for Willmott Dixon in Bristol, external window cleaning for Owens Group in Magor, and internal window cleaning for council offices in Tredegar. All services are delivered under strict health and safety controls, providing reliable, high-quality results across England and Wales.
“I would like to express my sincere thanks to APT for the excellent job they carried out at Tai Bach. The project was a much needed one and now that it is completed it has really helped to improve the look of the town. We have received many good comments from the public which is always a good sign.”
Kevin Hiller - Property Surveyor, Neath & Port Talbot Council
“We employed the services of APT to renovate a Grade 2 Listed Building. Under the directive of Cadw we were not allowed to use any wet process or chemicals within the interior of the building. APT used Soda Blasting on sandstone, brick, ceramic glazed tiles, metal work, paintwork on ceilings, coving, woodwork and ornate fixtures.
It was a great achievement to have one system for all the surfaces that needed cleaning and restoring and one that also ticked all the boxes of the environmental and conservation officers. The process saved us both time & money in being able to have just one company on site. We are very grateful to APT for their hard work on this project.”
Tim Luke - Gee Construction
“I would like to thank APT-ICC for their excellent work and assistance on the Barclays Bank project. They delivered the scheme and additional works on time and without issue thanks to Andrew and his team for all your extra effort, long hours and commitment. I look forward to using them on future renovations.”
Graham Lowe - Project Manager, Overbury Plc
“We have been receiving an overwhelming number of positive comments about the war memorial cleaning. Yesterday, during the small ceremony at the Penrallt column on the 1st World War anniversary, many expressed their appreciation for how splendid the memorial looks after the cleaning. We anticipate sharing photos on the internet page later this week. Additionally, we have shared your details with another person who serves as the clerk to two other local councils. Thank you once again for the exceptional work.”
Janice Davies - Gwynedd Council
It removes dirt, pollution, and build-up from windows and rooflights to improve clarity and appearance. Clean glazing allows more natural light into buildings. It also helps protect glass from long-term staining.
Yes. Commercial and industrial window cleaning often involves working at height. Specialist access methods are used to clean safely without disrupting building operations.
Ground-level windows may be cleaned in-house. However, high-level glazing, skylights, and difficult access areas usually require specialist equipment and experience. Incorrect access can create safety risks.
Pollution, rainwater minerals, and environmental deposits build up over time. If left, these can cause staining or etched marks. Professional cleaning and polishing can restore clarity.
Yes, when properly planned. Cleaning is often carried out while buildings remain occupied, with controls in place to protect people below. Work is phased to minimise disruption.
This depends on location, building height, and exposure to pollution. Some sites need regular maintenance cleaning, while others require periodic deep cleaning. A planned schedule helps maintain appearance.
Yes, when the correct method is used. Skylights are assessed to ensure suitable cleaning techniques are applied. This prevents scratching or damage to seals and frames.
Yes. Some sites manage routine cleaning with the right products. APT ICC can advise on suitable professional-grade chemicals, including those manufactured by APT Commercial Chemicals, used across England and Wales.
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