Chimney Removal Gone Wrong in Hertfordshire
How We Made an Unsafe Chimney Stack Safe Again
Not every structural project starts with a renovation.
Sometimes we're called in to fix work that should never have been left in the first place.
This project involved a chimney breast that had been removed many years earlier, leaving the remaining chimney stack supported by gallows brackets. Over time, that support failed, resulting in a partial collapse within the loft space.
Fortunately, the issue was identified before it developed into something far more serious.
The Problem
When homeowners buy older properties, it's not uncommon to inherit structural work completed decades earlier.
One of the most frequent issues we encounter is chimney breast removals that haven't been properly supported.
We've seen almost everything imaginable:
Timber props supporting chimney stacks
Improvised brickwork
Undersized steelwork
Failed gallows brackets
In some cases, no structural support at all
In this property, the chimney breast had been removed previously and the remaining stack was supported using gallows brackets. Over time those supports failed, allowing part of the chimney stack to collapse within the loft.
Why Do Chimney Supports Fail?
Many unsupported or poorly supported chimney stacks don't fail immediately.
In fact, they can remain in place for years before movement begins.
Over time, factors such as:
Settlement
Vibration
Weather exposure
Deteriorating mortar
Inadequate original design
can all contribute to structural failure.
That's why chimney removals should always be completed using a structural engineer's design and installed in accordance with Building Regulations.
Our Solution
After assessing the existing structure, we removed the failed support system and installed a new structural steel support designed to safely carry the remaining chimney stack.
The remedial works restored the structural stability of the chimney and provided the homeowners with complete peace of mind that the remaining stack was properly supported.
Signs Your Chimney May Not Be Properly Supported
If your chimney breast has previously been removed, look out for:
Cracks appearing in walls or ceilings
Sagging or movement in the loft
Loose brickwork around the chimney stack
Doors or windows becoming difficult to open nearby
Visible timber or makeshift supports in the roof space
If you're unsure whether your chimney has been correctly supported, it's worth having it inspected before small issues become major structural problems.
Think Your Chimney Removal May Not Be Safe?
If your chimney breast has been removed in the past and you're unsure whether the remaining stack has been adequately supported, we can help.
Wall Away carries out structural assessments, chimney removal works, remedial structural repairs and steel beam installations across Hertfordshire, North London and surrounding areas.
If something doesn't look right, don't ignore it. A simple inspection today could prevent a much more expensive repair later.