Structural terms

First Fix

First fix is the stage of construction when concealed structural elements, service routes and basic internal frameworks are installed before walls and ceilings are closed.

The work can include partitions, joists, door linings, pipework, electrical cables, ventilation ducts and support for later fittings. The precise division between first and second fix varies between trades and contracts.

Good first-fix coordination is essential because services often compete for the same voids and must not compromise structural timber, fire protection or insulation. Positions also need to suit the final room layout.

On an Edinburgh renovation, opening up older walls and floors may reveal irregular construction that changes the planned routes. Decisions made at this stage are much harder to correct after plasterboard and finishes are installed.

Property types

Commonly found in

Tenement Georgian Townhouse Victorian Villa Terraced House Traditional Cottage Georgian Flat Converted Flat Detached House Semi-detached House

More ways we can help

BUILDING & RENOVATION SERVICES IN EDINBURGH

From full property renovations and structural alterations to kitchen and bathroom installations, loft conversions and bespoke joinery, explore our building services across Edinburgh. Every project is personally managed by Martin Johnstone, coordinating the specialist trades involved from start to finish.