fires are notorious and many qualified enginners refuse to work on them. for example i’m doing one at the the moment that was glued to the wall and took 4 hours to remove! once removed the new fired ordered from the web was 20mm shorter than the spec sheet and had to be returned and another fire ordered.
what can be a 40 minute job can become a massive job very quickly, a simple clean my gas fire recently became a condemn gas fire and tell customer that no gas fire could legally be fitted in her fire place without complete demolition of her existing fire place.
we work on an open quote basis replacement fore supplied by customer or ordered on behalf of customer plus time and materials with a minimum charge of £75 the most expensive i can recall was 1100 not including the fire..
we dont work in birmingham i’d reccomend buying a fire and installation from a specialist fire installer and ALWAYS fit and audible Co alarm in the room. 20 quid to save your life..