County Londonderry · BT48

Fire Door Gap Adjustment in Derry

Derry landlords, managing agents and facilities teams can book fire door gap adjustments with straightforward reports and fixed prices.

Fire door gap adjustment is the work needed to bring the gaps between a fire door leaf and its frame, and under the door, back within the tolerance in the door's evidence, typically 2 to 4 mm around the edges. We use the same method for buildings in Derry.

Town: Derry
County / area: County Londonderry
Local authority: Derry
Postcode district: BT48
Region: Northern Ireland
Population: Around 84,000 people
Fire safety law: NI: Fire and Rescue Services (NI) Order 2006
Nearest town: Londonderry County Borough

Typical Derry fire door jobs

Student accommodation and HMOs are a big part of the building stock in Derry, and bedroom door closers and seals in shared housing take heavy wear every term. Reports for Derry buildings keep the same door references from one visit to the next.

What happens on site in Derry?

Gap readings at head, hinge side, closing side and threshold
Threshold gaps corrected or drop seals fitted on smoke control doors
Hinges re-packed or replaced where the leaf has dropped
Frame adjustment or re-fixing where the frame has moved
Hardwood lippings fitted to narrow leaves where the evidence allows

Pairs	Meeting stiles on double doors within tolerance and aligned.
Threshold	Under-door gap suited to the door; tighter on smoke control doors.
Cause	Dropped hinges, warping or frame movement fixed, not masked.

Full details on our fire door gap adjustment page.

Why Derry clients choose us

Booked around you

Visits in Derry are booked around residents, pupils or patients, including early, late and weekend slots by arrangement.

Records you can use

PDF and spreadsheet records for every Derry building, ready for your fire risk assessor.

One contact

One point of contact for inspections, repairs and replacements across Derry and County Londonderry.

Northern Ireland fire safety law in Derry

Derry is in Northern Ireland, where the Fire and Rescue Services (NI) Order 2006 and the Fire Safety Regulations (NI) 2010 require fire safety measures, including fire doors, to be maintained.

Prices in Derry

Typical Derry prices: £90–£260 per door (ex VAT). Minimum visit from £145. Get a guide price for your Derry building.

Questions from Derry clients

Can you price remedial work in Derry from another company's report?

Yes. Send the report and we will price each line for your building in Derry, or revisit specific doors if the report lacks detail.

Why do gaps open up over time?

Hinges wear and drop, frames shrink or move, leaves warp, and doors are sometimes planed after flooring changes. Each needs a different repair.

Does regulation 10 apply in Derry?

No. Derry is in Northern Ireland, where the Fire and Rescue Services (Northern Ireland) Order 2006 and the Fire Safety Regulations (Northern Ireland) 2010 apply.

What gap is allowed around a fire door?

Most guidance and manufacturers' evidence expect gaps of about 2 to 4 mm at the head and edges, with 3 mm as a practical target. The door's own certification or test evidence takes precedence if it states a different figure.