Concrete foundations in New Haven, CT
New foundations, footings and foundation repair in East Rock, Westville, Fair Haven and Wooster Square and the rest of New Haven. Free estimate on new foundations, footings and foundation crack repair, priced from your plans or a site visit.
- Free on-site estimate anywhere in New Haven
- Footings 42 inches below grade
- Poured walls, dampproofing and footing drains
Foundation work in New Haven
41% of New Haven's homes were built before 1940, many on fieldstone, brick or early concrete foundations. Additions to those houses need new footings dug carefully beside the old walls so we don't undermine them. New Haven has a lot of two- and three-family houses (20% single-family detached), and foundation work on them, from leaking cracks to rear additions, often happens with tenants in place. We plan around that.
Parts of New Haven near Long Island Sound are in FEMA flood zones, where additions and rebuilds can require elevated foundations with flood vents. The city's floodplain manager decides, and we build to the approved plans. Near East Rock and West Rock, foundations often meet ledge before full depth. Footings can bear on clean rock; when rock has to come out, it's hammered or drilled and priced openly, not hidden in the estimate.
The median home in New Haven was built in 1952, older than the 1960s house that's typical statewide. That's older than nearby West Haven, where the median is 1961.
New Haven at a glance
| Median year homes were built | 1952 |
|---|---|
| Homes built before 1960 | 59% |
| Single-family detached homes | 20% |
| Owner-occupied homes | 28% |
| Population, 2024 estimate | 137,562 |
Foundation permits in New Haven. New foundations, additions and garages need a building permit from New Haven's building department, with footing inspections before the pour in most towns. Footings go 42 inches below grade statewide. Crack injection inside an existing basement usually doesn't need a permit; structural repairs and wall replacements do.
What we do in New Haven
- Additions and garages
- Footings, poured walls, dampproofing and drains.
- Deck, porch and sunroom footings
- Piers to 42 inches, inspected.
- New home foundations
- Full basements and crawlspaces from your plans.
- Foundation crack injection
- Polyurethane for leaks, epoxy for structural bonding.
- Waterproofing and drainage
- Exterior excavation, sealing and footing drains.
- A
- Footing 42 in. below grade on undisturbed soil
- B
- Poured wall, reinforced per the plans
- C
- Dampproofing on the outside
- D
- Perforated footing drain in stone
- E
- 4 in. slab over a vapor barrier and gravel
- F
- Anchor bolts for the sill plate
Planning prices
| Work | Planning range | What drives it |
|---|---|---|
| Footing for a deck, porch or sunroom post (42 in. deep) | $300–$750 each | Cheaper per footing on bigger layouts |
| Two-car garage foundation: frost walls and slab | $16,000–$32,000 | Size, wall height and excavation decide it |
| Addition foundation, full basement (about 300 sq ft) | $25,000–$55,000 | Footings, 8 ft walls, dampproofing and drains |
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.
Concrete foundations in New Haven: questions
Do I need a permit for a foundation in New Haven?
Yes. New foundations, additions and garages need a building permit from New Haven's building department, and most towns inspect footings before the pour. Deck and porch footings are usually part of the deck permit.
How deep are footings in New Haven?
42 inches below grade, the same as everywhere in Connecticut. The state building code sets the frost depth statewide, and towns can't change it.
Do flood zone rules affect a foundation near the shore?
They can. In a FEMA flood zone, additions and substantial rebuilds may need elevated foundations with flood vents. New Haven's floodplain manager makes the call; we build to the approved plans.
Do you pour foundations near New Haven?
Yes. We also pour foundations in West Haven, East Haven and Orange, and across New Haven County.
More concrete work in New Haven
Everything else we build in town. Descriptions of each are on the New Haven concrete contractors page.
Concrete foundations near New Haven
Same service, neighboring towns. All 67 towns.
- West Haven3 mi
- East Haven4 mi
- Orange5 mi
- Hamden6 mi
- North Haven6 mi
- Branford8 mi
- Ansonia8 mi
- North Branford8 mi
- Derby8 mi
- Milford9 mi
- Seymour10 mi
- Shelton11 mi
Free estimates in New Haven
Call or send the estimate ticket. We set a time to see the site and put the price in writing.