
Give the leaf a stable, accurate frame
Opening assessed
We check dimensions, wall construction and substrate condition first.
Frame set true
We install it plumb, level and square with suitable fixings.
Perimeter addressed
We treat agreed surrounding gaps with suitable fire-stopping.
Treat the frame as part of the fire door
The frame is not just something that holds the hinges. It is a performance-critical part of the fire door assembly and must suit the leaf, wall construction and required specification. We survey the structural opening, check the dimensions and inspect the substrate before choosing and fitting the frame. Preparation at this stage matters because an uneven or unsuitable opening can prevent accurate fixing. During fire door frame fitting, we set the frame plumb, level and square, then use suitable fixings for the supporting construction. This creates the correct relationship between frame and leaf, helping the door move freely and close into a consistent position.


Complete the perimeter and test the assembly
The gap between the frame and surrounding wall needs proper attention rather than being hidden beneath trim. We treat the perimeter and associated voids with appropriate fire-stopping materials according to the agreed specification. Hinges, seals, closer and latch are then considered with the frame, not as separate finishing items. Once the leaf is hung, we check the clearances, alignment and complete closing path. A well-fitted frame helps prevent binding, uneven gaps and unreliable latching that can otherwise appear soon after installation. You receive a coordinated assembly where the opening, frame, leaf and hardware have been checked together.
Frequently asked questions
Can a new fire door use the existing frame?
Sometimes, but only where the existing frame is suitable, compatible and in appropriate condition. We inspect its dimensions, fixings and relationship with the proposed leaf before advising on retention.
Why must the frame be square and level?
Poor frame geometry creates uneven gaps, binding and missed latching. We set the frame accurately so the leaf can travel freely, meet the stops correctly and close into a consistent position.
What happens to the gap around the new frame?
We assess the perimeter and use appropriate fire-stopping materials where included in the agreed specification. The treatment depends on the size of the gap, wall construction and door-set requirements.

