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Chimney Stacks

Installing chimney stacks is a service provided by NJB Roofing and Son LTD in addition to other roofing services. It is likely that everyone sticks to their fireplace in winters. So, let NJB roofing repair or replace your chimney stacks. The most exposed portion of the roof, chimneys are subject to the full impact of any inclement weather. High winds, torrential rain, snow, ice, and interior chemical corrosion brought on by rapid heating and cooling will eventually cause the structure to fail. NJB Roofing and Son Ltd. is available to assist you with any chimney repairs or full chimney replacements.

For usage with a wood-burning device, many individuals desire to hold an existing chimney and modify it. You must determine whether the chimney is functional and adequate; NJB Roofing can perform a short inspection to determine whether it is appropriate and correctly operating.


For a long time, NJB roofing and building LTD has been repairing and restoring chimneys. Our knowledgeable employees are masters at restoring and making functional existing chimneys.

You may get help from NJB roofing and Son LTD to repair leaning chimneys. they are a consequence of structural changes, increase in damaged mortar joints, and acid assault.

The remedy will be to clean down to a depth of around 20–35 mm and repoint with sulphate-resistant mortar where the mortar joints have grown brittle and are nearing the end of their useful life. As they eventually operate as lungs, doing the majority of the breathing, and enabling moisture to evaporate via the mortar joints rather than the bricks or stone, new mortar joints should always be lighter than the bricks.

The chimney stack is rebuilt using salvage material in worst-case scenario. Or it is dismantled. For a relined flue, the NJB employees will need an internal diameter of 185mm or 200mm. Alternately, a steel rod can bind the chimney stack and stop it from further tilting and falling.

Furthermore, there is possibility of eroded mortar joints in chimney flue. Burning fuels can result in the formation of hygroscopic salts, which exposes the brickwork. These salts may draw moisture from external sources such as brickwork or condensation. The salts expand in size and crystallise in the mortar as they dry out. NJB Roofing effectively line the brick and mortar construction. Old flues are lined as well as those having steel liners already are evaluated. Because they ultimately corrode and resulting in replacement every 10 to 15 years or so. NJB roofing helps your chimneys live longer and continue to function by doing this.


Variety of roofing services

We provide a variety of roofing services, and over the years, we’ve worked with illustrious residential and commercial clients. We offer unbiased guidance on the roof coverings that are best for your home and will do corrective maintenance or a full replacement to the highest industry standards. Beyond that, we also provide services like repointing and chimney stacks.

We are really proud of the excellent service and careful attention to every last detail. Before beginning any project, we will consult with you frequently to thoroughly grasp your requirements before meticulously planning each aspect of the work necessary. Our team aims customer satisfaction form explaining the project to cleaning up. We will always do our utmost to take you into account. As a consequence, you can rely on the roof to survive for many years.