Updated: May 28, 2026
Location and Projects
Address
157 Church Street, New Haven, CT, 06501
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Daniel O'connell's Sons HVAC/Mechanical Contractor
Daniel O'connell's Sons Inc, 157 Church St, New Haven, CT holds a Mechanical Corporation license according to the Connecticut license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring Daniel O'connell's Sons Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Daniel O'connell's Sons Inc Contact Information
Address: 157 Church Street, New Haven, CT 06501
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Daniel O'connell's Sons Inc New Haven
Quality
90
47th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Daniel O'connell's Sons Inc has a BuildZoom score of 90, which places them above 47% of 12,093 contractors in Connecticut.
Activity
|
1 project
|
2023 |
Our building permit records indicate that Daniel O'connell's Sons Inc has worked on at least
1.0 project over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$1mil+ |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Daniel O'connell's Sons Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
2500 sf building addition next to the existing buildings and grounds facility on trinity college's campus. includes foundations insulated cmu walls steel roof w metal deck. insulated epdm roofing. building is to be used as a utility plant to house boilers and chillers
Valuation:
$5,400,000
Permit #:
COM-NEW-22-000044
Status:
issued
Fee:
$163,659
Permit Type:
N/A
Building Type:
N/A
New cast-in-place concrete steam vault
Valuation:
$45,000
Permit #:
COM-ALT-21-160669
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Wdc lobby revolving door replacement & upgrade of revolving door and storefront and door at the wdc lobby area
Valuation:
$196,828
Permit #:
B-151414
Status:
complete
Fee:
$2,578
Permit Type:
Commercial remode...
Building Type:
N/A
Wdc storefront entrance replacement or curtainwall storefront and door at vestible
Valuation:
$134,155
Permit #:
B-151415
Status:
complete
Fee:
$1,772
Permit Type:
Commercial remode...
Building Type:
N/A
Pouring concrete for slab on metal deck at new stair tower. work will be performed along the east side of the building. there will be a partial road obstruction for a concrete truck and a concrete pump
Valuation:
N/A
Permit #:
OB-22-79
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Existing yale class and office building to be used for: same exploratory demolition to existing yale class and office building. construct fo otings/foundation for new side addition all other work and mechanicals require additional permits. this permit issued per section 106.3.3 at holder's own risk. includes cost of entire proj ect not including meps. d o'neill - aka nrs2ap 96 wall st
Valuation:
$9,792,064
Permit #:
B-0700002838
Status:
issued
Fee:
$489,650
Permit Type:
Exploratory demol...
Building Type:
N/A
555 sf to existing security center per plans attached
Valuation:
$201,687
Permit #:
B-142281
Status:
complete
Fee:
$2,639
Permit Type:
Commercial remode...
Building Type:
N/A
Renovate southeast wing- sub-basement b asement ground and 1st floor. yale di vinity school. maintain/construct all r equired fire separations. all other wor k and mechanicals require additonal perm its. d o'neill yale divinity school- fireproof building - bp 11748 7/30/31. to be used for: off ice and classroom space - aka nrs2co 409 prospect st- se wing
Valuation:
$2,300,000
Permit #:
B-0800002990
Status:
issued
Fee:
$115,000
Permit Type:
Renovate southeas...
Building Type:
N/A
Renovate northeast wing- basement and 1s t floor. maintain/construct all require d fire separations. all other work and mechanicals require additional permits d o'neill yale divinity school- fireproof building s- bp 11748 7/31/31. to be used for: in stitutional temporary classroom and offi ce space to accommodate the renovation o f a building on the central campus - aka nrs2co 409 pro... see more
Valuation:
$1,253,000
Permit #:
B-0800002989
Status:
issued
Fee:
$62,650
Permit Type:
Renovate northeas...
Building Type:
N/A
Exploratory demolish to existing yale univer sity building stoeckel hall. all oth er work requires additional departmental approvals and permits. d o'neill yale univ stoeckel hall. to be used for: same - aka nrs2ap 96 wall st
Valuation:
$200,000
Permit #:
B-0600002867
Status:
issued
Fee:
$8,400
Permit Type:
Exploratory demolish
Building Type:
N/A
Exploratory demolition of divinity school chapel & east wing for future renovations. all future construction requires separate permits. issued per section 106.3.3. sbc. all mechanicals require separate permits. a rizzo op #2003-0108 6/26/2003 yale divinity school (entire building). to be used for: same - nrs2ap aka 409 prospect st
Valuation:
$143,000
Permit #:
B-0600001779
Status:
issued
Fee:
$6,006
Permit Type:
Exploratory demol...
Building Type:
N/A
Interior exploratory demolish to yale divini ty school southeast wing. remove non-be aring partitions mechanical systems. a dditional permits required for new work and mechanicals. p santoro yale univ divinity school- see bp's on f ile. to be used for: office/classroom s pace - aka nrs2ap 409 prospect st- se wing
Valuation:
$139,250
Permit #:
B-0800002338
Status:
issued
Fee:
$7,000
Permit Type:
Interior explorat...
Building Type:
N/A
Preliminary sitework per engineering sign-off. interior exploratory demolition. additional permits required for construction.
Valuation:
$280,748
Permit #:
B-2000-0676
Status:
issued
Fee:
$5,103
Permit Type:
N/A
Building Type:
N/A
Interior & exterior renovations with new hvac plumbing; electrical; sprinkler & telecommunications per plans & specs. (yale divinity school) this permit is in addition to bp-2000-0676; bp-2000-
Valuation:
$16,500,000
Permit #:
B-2001-0092
Status:
issued
Fee:
$299,970
Permit Type:
Rehab. - mixed use
Building Type:
N/A
Interior exploratory demolish to yale divini ty school northeast wing. remove non-be aring partitions mechanical systems. a dditional permit required for new work a nd mechanicals. p santoro yale divinity school- see bp on file. t o be used for: institutional temporary c lassroom and office space to accommodate the renovation of a building on the cen tral campus - aka nrs2ap 409 prosp... see more
Valuation:
$56,250
Permit #:
B-0800002337
Status:
issued
Fee:
$2,850
Permit Type:
Interior explorat...
Building Type:
N/A
Interior structural steel & new slate & membrane roof on existing structure. issued under section 108.7. additional permits required for all additional work
Valuation:
$1,000,000
Permit #:
B-2000-1083
Status:
issued
Fee:
$18,160
Permit Type:
Rehab. - non-resi...
Building Type:
N/A
Construct addition to existing stair bldg.#3 masonry building | to house, new electrical. room. new footing, slab, 2 insulation roofmunis permit number: 20120104
Valuation:
$190,465
Permit #:
20100591-C000
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Construct rear porch and stairs to replace existing deck on first level footings to be 42 below grade. stairs to be 7 riser; 11 tread. handrails and guardrails. all other work requires additional permits and departmental approvals. a rizzo map #130 circa 3/22/1923 two family dwelling. to be used for: same - res2ap
Valuation:
$1,000
Permit #:
B-0600001776
Status:
issued
Fee:
$42
Permit Type:
Construct rear po...
Building Type:
N/A
Footings and foundations for interior renovations and retaining walls and column supports for yale divinity school.-issued per section 108.7. additional permits-
Valuation:
$25,000
Permit #:
B-2000-0897
Status:
complete
Fee:
$454
Permit Type:
Rehab. - non-resi...
Building Type:
N/A
Renovation of (12) bathrooms on floors a - 6thmunis permit number: 20133083
Valuation:
$571,434
Permit #:
20104349-C000
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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Daniel O'connell's Sons Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Daniel O'connell's Sons Inc License info
Verified License
| License # | MCO.0900077 |
| Status | Active |
| State | Connecticut |
| Type | Mechanical Corporation |
| Date Issued | 07-01-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Daniel O'connell's Sons Inc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
10
Permits
- Building permit records show that Daniel O'connell's Sons Inc has worked on 10 permitted projects.