Maine Hardscaping That Winter Does Not Move

The jobs we do in Maine

Retaining walls and gravel driveways are the backbone of our work here. Both have to handle deep frost, wet ground, and the rock that shows up in the dig. We also build paver patios, walkways, and steps for dooryards, ells, and farmhouse porches across the state.

• Retaining walls built to hold back glacial till and ledge
• Gravel driveways on a compacted crushed gravel base
• Paver patios for dooryards and mudroom entries
• Walkways and steps that connect the house to the yard
• Paver driveways for a finished front approach
• Grading and drainage to move water away from the foundation

What to expect between the quote and the last paver

You get a written price before anyone digs. The quote covers excavation, crushed gravel, compaction, and the surface material. You know the full scope up front.

The process runs from the written price to the final sweep of sand. You are present for the start of excavation and the final walkthrough. You do not need to be there for the base compaction or the paver installation. The cost guide explains what drives the number before you commit.

The ground moves every spring. Plan for it.

Frost depth runs about 48 inches along the coast and in the south. In Aroostook County and the mountains, it goes to 60 or more. That is the difference between a surface that settles and one that heaves.

When water in the soil freezes, it expands. That lifts a slab, a paver, or a wall footing. In the spring thaw, the ground settles unevenly. A patio built without enough depth will crack. A wall without proper drainage will go out of plumb.

This is not a theory. It happens every year in Portland and southern Maine, the Midcoast, and Bangor. The fix is not complicated. It means digging below the frost line, compacting crushed gravel in lifts, and giving water a path out. Build it that way and the ground moving in spring does not move your patio.

What crushed gravel is doing under everything

Crushed gravel is the layer between the soil and your finished surface. It does three jobs. It spreads the load, it drains water, and it gives compaction a stable target.

The soil across Maine is mostly glacial till with boulders and ledge. Along the coast, you hit marine clay. In the river valleys, sand and gravel. Each one behaves differently under a shovel. Till and ledge need machine time to remove. Clay holds water and needs more gravel depth. Sand drains fast but shifts without proper compaction.

Excavation goes to about 48 inches where frost demands it. The crushed gravel base is placed and compacted in lifts. Drainage goes behind a wall and below a patio. Taller walls get geogrid to tie them back into the slope. The base is specified as MaineDOT Type A aggregate, which is the local name for crushed gravel.

The season runs from roughly May to October. Frozen ground stops compaction in the winter. Mud season slows the start. That window is why scheduling matters.

Cost, explained without a table

Deep frost sets the excavation depth. Rock in the dig sets the machine time. A short season sets the schedule. Those three factors drive the price more than the surface material you choose.

Granite is local, so it does not carry a long haul. Bluestone and fieldstone add variety but not necessarily cost. The written price reflects the actual dig, not a guess.