Concrete Contractors in Crestline, CA

Crestline sits at about 4,613 feet in the San Bernardino Mountains, inside the San Bernardino National Forest, and its climate table averages roughly 37.5 inches of precipitation annually, about six times Hesperia's total, with the heaviest months in December through March and almost nothing in summer. January lows average 28°F. Concrete contractors working here plan every job around two things that break concrete in the mountains: running water and freezing nights.

Start with where the water goes

On a hillside lot, winter storms send water downhill fast, and it will find the weakest edge of a driveway or the bottom of a stair. Before we price a Crestline job, we walk the lot during the estimate and look at:

• Where runoff enters the property from uphill and where it leaves.
• Whether a curb, swale or trench drain is needed to steer it.
• Whether the base under the existing slab has already washed out.
• Where downspouts discharge relative to walks, steps and the foundation.

Only then do we set slopes and edges, so water leaves the concrete without tunneling under it.

Then build for frost

With January lows below freezing, every exterior slab here is a freeze-thaw slab. That means an air-entrained mix, no added water at the truck, a proper cure before the first hard freeze and a sealer on colored or stamped surfaces. For the first winter, sand is the safer choice for traction; salt accelerates scaling on young concrete.

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Steps carry a lot of weight here

Because so many Crestline homes sit above or below the street, the stairs and landings are often the most important concrete on the lot. Old steps tend to heave, crack at the nosings and pull away from the house after decades of frost. A rebuild should have footings on firm ground, risers of equal height, a slight pitch on each tread so water runs off, a broom finish for grip, and an isolation joint where the steps meet the house. If the stairs are part of an engineered stair or retaining wall, we build to that plan.

Year-round residents and seasonal owners

Crestline had 7,306 housing units at the 2020 census, and on census day 2,344 of them (32.1%) were empty, which reflects the seasonal and second homes in the area. QuickFacts puts owner occupancy at 76.3%, and 90.7% of residents had not moved in the past year. Full-time residents usually want a driveway they can trust every winter morning. Seasonal owners usually want problems fixed while they are away, with photos as the work goes.

Around Lake Gregory

Lake Gregory lies in Crestline proper. Work started in 1937, when a Works Progress Administration grant paid to dam the east and west forks of Houston Creek. The project wrapped up in January 1939 with a road, today's Lake Drive, built across the dam. The water sits at 4,554 feet. Heavy March rains in 1938 filled it in about three days. Homes on the lower ground near the lake and its creeks see that same storm runoff, so drainage around patios and drives gets extra attention there.

Fire history

In late October 2003 the Old Fire swept across 91,281 acres. Crestline was among the mountain resort towns it threatened, along with Cedar Glen, Running Springs and Lake Arrowhead, until it was fully contained on November 2. Many mountain owners now use concrete to reduce what can burn next to the house, swapping wood steps and decks near the walls for concrete and setting propane tanks and firewood on slabs.

Getting concrete up the hill

Narrow, winding streets and steep driveways decide how concrete gets delivered. Where a mixer cannot reach or safely park, we plan a pump. Most Crestline pours are scheduled for the drier, warmer months so fresh concrete is not caught by a storm or a hard freeze.