Retaining walls in New Canaan, CT
Block and poured concrete walls in Silvermine and downtown New Canaan and the rest of New Canaan. Free estimate, and a straight answer on whether your wall needs an engineer.
- Free on-site estimate anywhere in New Canaan
- Drainage stone and pipe behind every wall
- Poured walls on footings below frost
Retaining walls on New Canaan lots
Half of New Canaan's homes were built before 1967, and the landscape walls that went in with them, often timber or unreinforced block, are reaching the end of their life. New Canaan mixes single-family homes (73%) with multi-family lots, so walls here range from garden terraces to walls holding up shared driveways.
Ledge and boulders show up in a lot of New Canaan wall excavations. Sometimes the rock becomes part of the design; sometimes it has to go. We sort that out at the estimate.
The median home in New Canaan was built in 1967, close to the 1960s house that's typical statewide. That's newer than next-door Darien (median 1957) and older than Stamford (1972).
New Canaan at a glance
| Median year homes were built | 1967 |
|---|---|
| Homes built before 1960 | 37% |
| Single-family detached homes | 73% |
| Owner-occupied homes | 84% |
| Population, 2024 estimate | 21,160 |
Wall rules in New Canaan. Under the Connecticut State Building Code, a retaining wall over 4 feet tall, measured from the bottom of the footing, or one carrying a driveway, slope or building above it, needs a permit and generally an engineered design. Work near wetlands or watercourses can also need a sign-off from New Canaan's inland wetlands commission. We check both before we price.
What we do in New Canaan
- Segmental block walls
- Terraces and garden walls with drainage built in.
- Poured concrete walls
- Reinforced walls on footings below frost.
- Engineered walls
- Walls over 4 feet or carrying a driveway or slope.
- Wall replacement
- Leaning or failed walls rebuilt with drainage.
- Steps through walls
- Stairs built into terraces and slopes.
- A
- Poured, reinforced wall (or segmental block)
- B
- Footing below the 42 in. frost line for poured walls
- C
- 12 in. of clean drainage stone
- D
- Filter fabric against the soil
- E
- Perforated pipe to daylight
- F
- Over 4 ft, footing bottom to top, needs an engineered design
Planning prices
| Work | Planning range | What drives it |
|---|---|---|
| Segmental concrete block wall | $40–$80 / face sq ft | Includes base, drainage stone and pipe |
| Poured concrete retaining wall | $60–$120 / face sq ft | Footing, rebar, forms and drainage |
| Garden or terrace walls under 3 ft | $3,000–$9,000 | Typical backyard runs |
Planning ranges for Connecticut in 2026, not quotes. Ledge, tight access, long pump or wheelbarrow runs and very small pours push a job up. Your price comes in writing after we've seen the site. See every line item.
Retaining walls in New Canaan: questions
Do I need a permit for a retaining wall in New Canaan?
Walls over 4 feet from the bottom of the footing, or walls holding up a driveway, slope or building, need a permit from New Canaan's building department and generally an engineer's design. Shorter garden walls usually don't, though zoning setbacks and wetlands rules can still apply.
How much does a retaining wall cost in New Canaan?
Block walls fall in our planning range of $40–$80 / face sq ft of wall face, poured concrete walls $60–$120 / face sq ft. Height, drainage, access and any engineering set the final number.
What if there's ledge where the wall goes?
Ledge can be the best base there is. We clean it, step the footing or base to the rock, and make sure water can drain off it.
More concrete work in New Canaan
Everything else we build in town. Descriptions of each are on the New Canaan concrete contractors page.
Retaining walls near New Canaan
Same service, neighboring towns. All 67 towns.
Free estimates in New Canaan
Call or send the estimate ticket. We set a time to see the site and put the price in writing.