Garage damp

Alex_amc

Hi all, I'm having problems with damp in the corner of my garage.
The ground level of my neighbours garden is a good 2ft to 3ft higher than the ground level in my garage. I had tanking done on the section of the wall 2 years ago but damp is getting through again both in the wall and part of the floor. The wall is only 1 concrete block thick.
I was going to ask my neighbour if i could carry out work on her side of the wall to stop the damp but I'm wondering if there's any other way around it first.
I had a damp proof specialist out to look at it and he said tanking won't work and he quoted me £580 plus vat to install drainage to fix it but I thought that was a little steep. Any advice would be appreciated. Thank you 

greatcrested

I wouldn't worry.

These days cars don't rust the way they did when I bought my first mini. You could pretymuch put your foot through the driver's well floor, and don't mention the cills!

FreeBear

Garages are inherently damp - Moisture will wick through single skin walls and up through the concrete base. Any damp air coming in through the door (and elsewhere) will condense on cold surfaces (i.e. floors. walls, ceiling). Not much you can do. If soil is banked up externally bridging the DPC, dig it away and install a french drain (basically, a small trench filled with gravel). If the soil level is higher than say 150-200mm, a small retaining wall will help. Also worth keeping the floor clean internally, and get rid of that small pile of dirt that is bridging the DPC in your photo.

Tanking, and any other damp proof "cures" will be ineffective - Condensation will be a major factor to contend with which can only be fixed by insulating and draught proofing plus a bit of heat.