Concrete Patios in Castle Rock, CO
Turn a dirt or grass corner of the yard into usable outdoor space, or replace an old cracked slab that tips toward the house.
Popular patio projects
- New backyard patios off a walkout or slider door
- Extending a builder-grade patio that's too small
- Hot tub and grill pads (thicker slabs and reinforcement for the weight)
- Replacing a cracked or sunken patio that slopes toward the house
- Decorative finishes: color, exposed aggregate or stamped concrete
Slope it away from the house
The Colorado Geological Survey lists poor surface drainage and irrigation water soaking the soil next to a foundation among the things that make swelling-soil damage worse. A patio should be sloped so water runs away from the foundation, and downspouts shouldn't empty onto or under the slab.
Permits and HOA review
Covered patios and decks go through the Town of Castle Rock Building Division's plan review. Whether an uncovered, on-the-ground slab needs a permit depends on the project and the jurisdiction, so have your contractor confirm with the Building Division or your local government. Many HOAs also want to review patio plans, especially for colored or stamped finishes.
Budgeting
Angi's 2026 national data puts a typical concrete patio at about $1,919–$5,393 (average around $3,557), or about $4–$30 per square foot depending on finish. A 16-by-20-foot patio runs about $1,900–$5,100 in that data. Removing an old slab, leveling a sloped yard and decorative finishes add cost.
Frequently asked questions
How thick should a patio be?
Most residential patios are about 4 inches thick. Pads for hot tubs or outdoor kitchens are usually thicker and reinforced. Ask your contractor what they recommend for the load.
Concrete or pavers?
Poured concrete usually costs less per square foot; pavers can be lifted and reset if the ground moves. Both need a good base.
Can a patio be poured in the fall?
Often, yes, while daytime and overnight temperatures allow. In cold weather the contractor needs to protect the fresh concrete from freezing.
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