Why is that ? They used to be used a lot for treatment of rising damp in existing walls and were approved by NHBC in conversions of old buildings. On existing plastered walls IFIRC plaster was hacked off to a height of at least 1.2m above floor level, chemical dpc injected before wall replastered.stay away from all chemical injections as a so called cure for rising damp.
thers lots more to this business an its best you dont comment or give advice unless you now the score.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local