Digging, moving or lifting only a part to take your measurements, we will do the full work once the contract is accepted, the surface preparation is always included in our work task, with no additional costs. Check with your tape measure height after digging a part under the ground near the foundation wall. If the soil is uncompacted, add 6 inches or more depending on the case and if your soil is very compact added 3 inches or more as the case may be. If you have a turf that has been installed recently, lift some of your lawn and take your height measurement and replace your lawn, if your lawn is well anchored in the ground, add only 3 inches to your measure. We do not move any paving-stone, slab, rock, gravel or any other flooring without your consent. We can dig deeper into the ground according to your request, an on-site submission is preferable if you have more information to communicate us.