Godfrey

I recently had a fire door inspection at my flat, and my door failed due to excessive gaps. I wasn’t fully convinced, so I purchased a fire door gap gauge to check myself. The measurements I took show: Hinge side: gap is only 3mm — well within the acceptable range (2–4mm). Lock side: from around the lock down to the bottom, the gap increases to 7–8mm. The rest of the door is within limits. 💬 My question: Can I fit a fire-rated door lipping to the edge (lock side) to reduce that gap? My door thickness is 44mm (standard FD30). The contractor quoted me £1,500 for a full replacement, which feels excessive when only one section is affected. Has anyone else done this or had success with a certified repair?