Brickwork Repairs

Brickwork in kilns and furnaces are extraordinarily resilient and long lasting, despite the stresses it undergoes at every firing/cooling cycle. Even when it seems to be almost flaking away, it can still withstand temperatures of 1700C / 3092F. Despte that, there comes a point at which old and damaged refractory bricks degrade to the extent that they do begin to exact a cost on productivity through inefficient heat retention and even damage to the kiln ware from dust or particles falling off the bricks.

At Therser we offer a comprehensive brickwork repair service to restore efficiency and output to your kiln.


Common Problems

Degraded brickwork inevitably results in loss of heat retention, which simply burns more fuel to maintain the required temperature for production runs. This leads to a lack of temperature uniformity, which may require more frequent calibration depending on the application for which a kiln is used and could cause spoilage of the fired product. Lower peak temperatures may require longer firing cycles to compensate. All of which means increased overhead and eroded profits, leading eventually to a decision to carry out the repair, despite whatever downtime that may involve.

Inspection & Quotation

Every brickwork repair is different, if only because of the vast variation in the shapes and sizes of the bricks used in kiln construction and the range of underlying insulation materials. Electric kilns present different repair and refurbishment problems to gas or oil fired units. Call us to arrange an on-site inspection. We always endeavour to fit in our visits with your production schedule so that we call when the unit is cool.

Refractory Bricks

Also known as firebricks, chamotte and fire clay, they contain high levels of alumina, as well as silica. More alumina content results in higher density and the greater temperatures that the bricks can withstand. Fired at higher temperatures than standard building bricks, they are also denser and tougher. Firebrick cannot really be effectively repaired, just replaced.


Restore Your Brickwork With Therser

We at Therser can repair and refurbish refractory lining and brickwork in kilns, either just one or two sections or an entire rebuild, and upgrade the insulation at the same time by installing a modern alternative that demonstrates greater heat efficiency and therefore lower running costs. Call us today to discuss your repair requirements on +44 (0) 1782 824453 or use our contact form.



If you need, or may need in the future, to invest in an industrial kiln, furnace or oven, then get a copy of this FREE guide today.


  • How to choose the right type of kiln or furnace
  • How to avoid the most common mistakes with industrial kilns and furnaces
  • How to ensure maximum fuel efficiency

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"They certainly have the necessary technical and engineering resources to carry out large scale projects and I would have no hesitation in recommending them."
Paul Smith
"We are pleased to confirm that we have purchased numerous Kilns from Therser UK and have also recommended to all of our customers that they are our preferred supplier of quality kilns."
Dennis Dixon
Clan Ceramics Consultancy
"The kilns supplied have proven to reliable and repeatable in their firing characteristics and most recently we have used Therser UK to supply a new kiln to one of our licenseesoverseas. This was successfully installed and commissioned and full training in the use ofthe kiln was supplied by Therser."
K A Smalley
Ross Ceramics
"We have purchased a kiln for firing injected ceramic cores 18 months ago from Therser UK and have been thoroughly impressed with the high quality of the equipment and the service provided."
Neil France
Gardner Blade