Updated: Jun 06, 2026
Location and Projects
Address
280 QUARRY RD STE E, Milford, CT, 06460
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Onofreo Home Comfort Systems HVAC/Mechanical Contractor
Onofreo Home Comfort Systems LLC offers extensive heating, air conditioning, and indoor air quality services throughout Connecticut including installation, repair, and maintenance.
Our technicians and installers are factory trained on every product offered. We provide real solutions with a comprehensive explanation in layman’s terms so you will easily understand your options. We strive to help people with all of their home comfort needs.
We offer free estimates on new furnace installations, boilers, hot water heater, air conditioning systems, and other HVAC needs. We will schedule an appointment with you to determine what specific system best meets your comfort needs and fits your home.
At that time we will properly size your home to ensure the correct unit is installed and leave you with a professional proposal. When the contract is signed, we will obtain all the necessary permits for the job installation.
From BuildZoom: Onofreo Home Comfort Systems, LLC, 280 Quarry Rd, Milford, CT (Owned by: Mark Onofreo) holds a Heating, Piping & Cooling Unlimited Contractor license and 2 other licenses according to the Connecticut license board.
Their BuildZoom score of 116 ranks in the top 2% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Onofreo Home Comfort Systems, LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Onofreo Home Comfort Systems, LLC Services
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Onofreo Home Comfort Systems, LLC Contact Information
Phone Number: (203) 295-4726
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Address: 280 QUARRY RD STE E, Milford, CT 06460
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Onofreo Home Comfort Systems, LLC Milford
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Onofreo Home Comfort Systems, LLC has a BuildZoom score of 116, which places them above 98% of 12,093 contractors in Connecticut.
Activity
|
16 projects
|
2025 |
|
58 projects
|
2024 |
|
57 projects
|
2023 |
Our building permit records indicate that Onofreo Home Comfort Systems, LLC has worked on at least
131.0 projects 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.
Experience
|
100 projects
|
Mechanical projects |
|
88 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Onofreo Home Comfort Systems, LLC mostly works on
mechanical project
and hvac project
projects.
Pricing
|
2 projects
|
< $5k |
|
60 projects
|
$5k-$20k |
|
11 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $11,000. This graph shows the distribution of these job values.
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 Onofreo Home Comfort Systems, LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Two-story single family dwelling for adu
Valuation:
$350,000
Permit #:
BLD-2025-00811
Status:
approved
Fee:
$3,591
Permit Type:
N/A
Building Type:
N/A
Installation of air handler and single zone ductless ceiling cassette system to include all ductwork
Valuation:
N/A
Permit #:
BLD-2025-01301
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of replacement gas furnace and central air conditioning system (evap coil/condenser)
Valuation:
$10,000
Permit #:
RM-25-28
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of (1) three zone ductless system (1) two zone ductless system and (1) heat pump water heater
Valuation:
$36,000
Permit #:
RM-24-222
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of new gas furnace and central air conditioning system (evap coil/condenser) to condition second floor addition
Valuation:
N/A
Permit #:
64870
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of replacement central air conditioning system (evap coil/condenser)
Valuation:
$10,000
Permit #:
25-37M
Status:
expired
Fee:
$156
Permit Type:
Air conditioning ...
Building Type:
N/A
Installation of oil to gas conversion-new gas lines and replacement furnace/coil. installation of replacement water heater and installation of single zone ductless system
Valuation:
N/A
Permit #:
63548
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace central air conditioning system (air handler/condenser)
Valuation:
$10,000
Permit #:
RM-25-54
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing existing gas furnace central air conditioning system and gas hot water heater with new air handler/heat pump system and heat pump water heater
Valuation:
N/A
Permit #:
62512
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of replacement central air conditioning to ahu/heat pump system and one single zone ductless system
Valuation:
$17,000
Permit #:
AC-2025-01435
Status:
issued
Fee:
$174
Permit Type:
N/A
Building Type:
N/A
One story addition for covered porch 2nd story addition over existing misc. interior renovations
Valuation:
$175,000
Permit #:
BLD-2022-00738
Status:
complete
Fee:
$1,796
Permit Type:
N/A
Building Type:
N/A
Installation of replacement central air conditioning system (air handler/condenser)
Valuation:
$9,200
Permit #:
RM-24-142
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of three zone ductless system to replace existing electric baseboard
Valuation:
$17,000
Permit #:
RM-24-100
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of replacement 5 ton condenser and coil and replace 2 ton air handler and condenser with 3 ton heat pump
Valuation:
$23,000
Permit #:
BLD-2023-01106
Status:
issued
Fee:
$236
Permit Type:
N/A
Building Type:
N/A
Installation of replacement central air conditioning system (fan coil/condenser)
Valuation:
$10,000
Permit #:
RM-24-196
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of air handler/heat pump and single zone ductless systems
Valuation:
$26,571
Permit #:
RM-24-77
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of new air handler/heat pump to include all attic ductwork
Valuation:
$29,500
Permit #:
RM-24-72
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit #419 - installation of replacement gas furnace and central air conditioning system-bryant legacy 116b air conditioning 1.5 ton + 810sa furnace 45, 000 btu
Valuation:
$8,853
Permit #:
22-96M
Status:
expired
Fee:
$142
Permit Type:
Mechanical stand ...
Building Type:
N/A
Installation of replacement boiler and water heater to include oil to gas conversion-bryant preferred 926tb 80, 000 btu furnace + navien npe water heater 105 gallon
Valuation:
N/A
Permit #:
54205
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of air handler/heat pump and single zone ductless systema
Valuation:
$21,000
Permit #:
RM-24-177
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Onofreo Home Comfort Systems, LLC License info
Verified License
| License # | HTG.0408576-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Onofreo Home Comfort Systems, LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | NHC.0016118 |
| Status | Active |
| State | Connecticut |
| Type | New Home Contractor |
| Business Type | Limited Liability Company (Llc) |
- When BuildZoom last verified this license, it had an expiration date of September, 2021. Check the current license status of Onofreo Home Comfort Systems, LLC with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HTG.0408576-S1 |
| Status | Active |
| State | Connecticut |
| Type | HEATING, PIPING & COOLING UNLIMITED CONTRACTOR |
| Business Type | Limited Liability Company (Llc) |
- When BuildZoom last verified this license, it had an expiration date of August, 2022. Check the current license status of Onofreo Home Comfort Systems, LLC with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
116
BuildZoom Score
243
Permits
- Building permit records show that Onofreo Home Comfort Systems, LLC has worked on 243 permitted projects.
Onofreo Home Comfort Systems, LLC Employees
MO
Mark Onofreo
Owner