Chimney & Fireplace

Reducing size of upstairs chimney breast

Anonymous user 03/03/2024 - 2.59 PM

2 story detached house. Hi im interested in reducing the size of my upstairs chimney breast. I have just had the chimney stack repaired, i.e deep repointing/rebuilt Chimney cap, flashing repaired and waterproof coatings. I was informed that the chimney requires a new liner as the old lime one has crumbled away. Downstairs i have a functioning wood burner that i obviously intend to keep. My question is if i have to install a new 6" flexible flue liner and no longer require the upstairs fireplace. Can i reduce the chimney breast upstairs significantly to only accommodate the 6" liner. Thus dramtically increasing the space and usability of the room. pushing this into the corner of the room would be even better. (there is a good foot gap under the floorboards before the downstairs ceiling.) I understand i would need some RSJ's in the loft to support the stack above and building regs etc, In summary i would want Installing RSJ in the loft. Removing breast in upstairs room/Building much smaller breast around 6" flue/ Reducing size of brest to accomodate 6" flue pipe. Is this possible? I will submit a job for quotes if this is possible to comply with mybuilder rules, however i need to save some money first. Many thanks