Excellent! From my first interactions with both Kerri and Alan, they were professional and advised me on what treatment was required for the wall. I appreciated the fact that Alan spent time with me over a Facetime call examining the wall (both inside and outside). Alan clearly explained what was required, how the work would be performed and what was required after the treatment. There was also a little damp coming into the opposite wall which they also treated as part of the overall quote for the initial wall. If you require any of their services, I would highly recommend AL Damp Proofing. Thoroughly professional and just good people.