Tee Technical has experience with all types of individual fixed light and opening casement and sliding sash window systems manufactured with either timber, UPVC, steel or aluminium frames. Such systems have been inspected on a variety of buildings ranging from individual residential dwellings to multi-storey large office and residential tower blocks.

Tee Technical specialises in particular in the assessment and repair of existing windows systems and advocates where possible economic remedial repair strategies to reinstate often very old systems to a serviceable condition without the need for replacement.