Sandstone Repair & Restoration by skilled Stonemasons.
Covering all areas of the UK (Scotland, England, Ireland and Wales).
If you have a natural stone or sandstone building in need of repair, masonry pointing, stone cleaning, laser stone cleaning or restoration then you have came to the right place. Sandstonerepairs ensure that all our stonemasons are specialists in sandstone renovation and the repair all of all types of stone work. We have a vast experience of refurbishing both red and blonde sandstones. We can repair damaged sandstone window sills or even remove paint from around your windows and revive that old original stonework. Our stone masons have a variety of techniques to revive the appearance of your building including cement mortar repointing, lime mortar pointing repairs to any masonry, stonework or brickwork. We offer sandstone solutions in Ayr, Kilmarnock, Glasgow, Ayrshire, Dumfriesshire, Fife, Edinburgh areas of Scotland but travel throughout Britain on larger projects.
Sandstone block replacement
This is by far the most widely recommended method of repairing stonework , albeit a lot more expensive. Whole units of defective stone masonry are cut out and then replaced with new blocks of compatible natural stone . It can however be difficult to source the correct stone as different geographical areas tend to use only locally sourced stone. Unfortunately sometimes these stone quarries are found to be closed down. Compatibility is important to ensure that the replacement stone does not cause or accelerate the decay of adjacent masonry. Ideally the new stone is quarried from the original source, where this is not possible the most suitable material available is used. The new stone would normally be pointed with a suitable lime mortar to finish.
Also known as piecing in. This is stone repair method is normally employed when the removal of whole blocks of stone would affect the structural stability of the building.
A decayed section of stone masonry is cut out and replaced with another piece of natural stone that precisely fits the newly formed cavity. The rear of the stone indent is secured to the original block with non-ferrous or stainless steel dowels that are chemically anchored. As with natural stone replacement, geologically compatible stone is selected for the repairs.
Sandstone surface repair
These are cosmetic stone repairs that are carried out to stone masonry that has suffered some form of superficial deteriation. The repairs are undertaken in-situ using repair mortar, this means minimal disruption to the building or structure.
Stone repair mortar is available in different forms but can be largely classified as below:
Natural stone repair mortar
A combination of natural hydraulic lime, blended sands/aggregates and clean potable water. This can be mixed by the stonemason or specialist on site to suit particular conditions, strengths and colours of stone masonry. It is not recommended that ordinary portland cement is used in the repair of sandstone as it does not allow the stone to breathe and will be significantly harder than the stonework, potentially causing problems as it cannot expand and contract at the same rate as the surrounding area.
Synthetic sandstone repair mortar
Typically manufactured in a laboratory using a mixture of polymers and aggregrates . They are lightweight and extremely fast drying. Where invisible stone repairs are required the mortar can be dyed or stained to match adjacent stone masonry.
Structural sandstone repair
Structural repairs are undertaken where cracks in stone walls, lintels or window cills threaten the stability of the masonry and it is not practical to replace the damaged stone.
Slots are cut into the cracked stone member and a combination of epoxy resin injection and stainless steel reinforcement is used to pin the two cracked pieces of stone masonry together. To complete the repair the slots are filled by indenting or surface repairs.
Cast sandstone replacement
Where replacement with new natural stone masonry is not a practical option, replacements can be reproduced to match the original masonry in natural stone artificial stone.
The new masonry is cast from a synthetic mortar or natural hydraulic lime mortar. The mortar is mixed or dyed to match the colour of the surrounding area so that the sandstone repair is barely seen when complete.
It should be noted that surface repairs often referred to as plastic repairs or patch repairs are almost always a far less expensive way of restoring superficial sandstone deterioration.
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