Chimney Rebuild and Re-Flaunching on Trinity Street, Leamington Spa

An ageing chimney can become far more than a cosmetic problem. Once brickwork, mortar joints and the flaunching around the chimney pots begin to deteriorate, the chimney becomes increasingly vulnerable to water ingress, frost damage and further movement.

At this property on Trinity Street in Leamington Spa, Roof Maintenance Leamington carried out a substantial chimney rebuild and re-flaunching project, carefully using reclaimed Leamington bricks to help the repaired chimney remain sympathetic to the character and appearance of the surrounding property.

The existing chimney stack had suffered significant deterioration over time. The project photographs show areas of badly weathered brickwork and mortar around the upper sections of the chimney. Some bricks had begun to break down, mortar joints were failing and sections around the chimney pots were visibly deteriorated.

This type of damage is particularly important to address because a chimney is one of the most exposed parts of a property. It receives the full force of rain, wind, frost and temperature changes throughout the year.

As mortar and brickwork begin to fail, water can penetrate deeper into the chimney structure. During colder weather, trapped moisture can freeze and expand, accelerating the deterioration of the bricks and joints. Rather than carrying out a short-term surface repair to masonry that was already compromised, the chimney required a more substantial rebuild.

The affected sections of the chimney were carefully taken down so the condition of the underlying brickwork could be properly assessed. The photographs taken during the work show how much deterioration had occurred beneath the visible surface. Once the upper masonry was dismantled, loose and degraded material could be removed rather than being concealed beneath new mortar.

Taking the chimney back to sound masonry gave the team a strong foundation from which to rebuild it correctly. This is an important distinction with older chimneys. Simply pointing over failing masonry may make a chimney look better temporarily, but if the bricks or underlying mortar have substantially deteriorated, the underlying problem remains.

A key part of this project was the use of reclaimed Leamington bricks. On older properties, replacing weathered brickwork with modern bricks can create an obvious visual mismatch. Differences in size, colour, texture and ageing can make a repaired chimney stand out from the rest of the building.

Using suitable reclaimed bricks allowed the rebuilt sections to sit much more naturally alongside the existing masonry. The chimney was progressively rebuilt, replacing deteriorated areas and restoring the integrity and shape of the stack while retaining the character expected of an older Leamington property. The result is a repair that does its structural job without looking unnecessarily new or out of place.

The work also included re-flaunching the top of the chimney. Flaunching is the mortar bed formed around the base of chimney pots. It performs two important jobs: holding the chimney pots securely in position and directing rainwater away from the openings at the top of the chimney stack.

Over many years, flaunching can crack, crumble or separate from the pots and surrounding masonry. Once that happens, water can find its way into the chimney structure and contribute to damp, damaged mortar and further deterioration of the brickwork below.

For this project, new flaunching was formed across the chimney top around the pots, creating a clean, solid and weather-resistant finish.

Once complete, the difference was substantial. The deteriorated upper masonry had been rebuilt, compromised bricks had been replaced with reclaimed materials appropriate to the property, the chimney pots were securely incorporated into the rebuilt structure and the chimney top had been newly flaunched to help shed rainwater effectively.

Just as importantly, the repair addressed the underlying deterioration rather than simply covering it. The finished chimney retains the traditional appearance of the property while providing a much stronger barrier against the Warwickshire weather.

Roof Maintenance Leamington carries out chimney repairs, chimney repointing, chimney rebuilding and re-flaunching throughout Leamington Spa and the surrounding Warwickshire area. Whether the problem is a small area of failed mortar or a chimney stack that has deteriorated enough to require rebuilding, the first step is identifying what is actually failing and choosing a repair appropriate to the condition and age of the property.