Working exclusively in London north of the Thames, Calder is a family business. Services include traditional roofing, of which the craftsmen sympathetically install or repair virtually every type of traditional roof.

Solutions to damp and decay where innovative and sympathetic solutions are used to eradicate wet and dry rot and timber infestations. Structural timber engineering in situ restoration and repairs, damp proofing and tanking treatments form a large part of their work.

Sympathetic renovations which include restoration and structural alterations and repairs to all period properties. Lime mortars, plastering, rendering and limewash. Wrought and cast ironwork. Established 1966, this family business portfolio of projects includes many important historic buildings, mostly in residential but also in commercial present day uses. Calder’s work is fully insured and guaranteed.