Dan was very helpful in laying out the options available to me for strengthening my staircase, and we agreed on a top side only fix to reduce the amount of upheaval and with the knowledge that the underside could still be done at a later date if it becomes necessary. So far the topside fix has been great, and the stairs are now re-carpeted.
Dan's team were polite and respectful, arrived on time and got on with the work. A slight delay meant they had to come back to finish off, but this was slotted in with minimum fuss.
Happy to recommend and intend to use them again in the future.