Specialist Glazing company for Traditional Window Restoration. Tec Glass undertake large or small restoration projects as well as supplying advice for any metal or leaded fenestration installations.We take pride in protecting the heritage ot traditional or listed properties and manufacture or repair leaded windows and crittall (or metal) frames in-house at our workshop in Thame.Our approach is consultative, ensuring that clients receive the best advice and quotes to suit the available budget.