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Local provider profile

Mark R Onofreo

Documented work across Connecticut based on attributed municipal records.

Reported work volume$1.7MDocumented jobs
Average project$16.8KWhere values are reported
First observed2021Available dataset
Categories3Observed work types
Used for work inNorwalk53 jobsTrumbull42 jobsGreenwich5 jobsWilton4 jobs

Enriched provider details

Provider information

Supplemental data supplied by FullContact and stored separately from public records.

FullContact query stored 2026.

Contact information

Details found in public records

These details have not necessarily been claimed or independently confirmed by the provider.

Phone
203-301-4151source record
Phone
203-723-1372source record
Phone
203-895-3728source record
Email
[email protected]source record

Work history

Documented work by property

Individual records are grouped by address. Totals include only values reported in public records and may not equal final construction cost.

Satellite view of 9 23 2026, Trumbull, CTSatellite view
2026

9 23 2026

Trumbull, CT
  • 2026Mechanical

    Gas furnace and central air-conditioning system, including all new gas piping.

    $18K
Satellite view of 9 24 2026 Trumbull, Trumbull, CTSatellite view
2026

9 24 2026 Trumbull

Trumbull, CT
  • 2026Plumbing

    Install 25ft Remove and standard 12-gauge lines to outside. Of 1 1/4" Black pipe to new gas furnace dispose of the old 275-gallon oil tank in basement. Install Granby steel 275-gallon oil tank in same location. Install new fill and vent Install new tank gauge, vent alarm, whistle, and safety valve.

    $2K
Satellite view of 8 12 2026, Trumbull, CTSatellite view
2026

8 12 2026

Trumbull, CT
  • 2026Mechanical

    Handler/heat Remove existing Including all pump system to include all new ductwork siding and replace with new CertainTeed MainStreet vintl siding. Required trim, accessories, flashing, and weather-resistant barrier as.

    $25K
Satellite view of 8 11 2026 Trumbull, Trumbull, CTSatellite view
2026

8 11 2026 Trumbull

Trumbull, CT
  • 2026Mechanical

    Installation from car hitting building. Fix wood new glass, fix damage stone and wood, of a replacement central AC system (evap coil/condenser).

    $8K
Satellite view of 8 25 2026, Trumbull, CTSatellite view
2026

8 25 2026

Trumbull, CT
  • 2026Mechanical

    Installation Direct replacement of replacement Geothermal Heat Pump of Oil Fired Boiler with PurePro PROAOT-4E Basic 2 zone 168k.

    $22K
Satellite view of 7 20 2026, Trumbull, CTSatellite view
2026

7 20 2026

Trumbull, CT
  • 2026Mechanical

    Installation Tear off existing rot and replace of a replacement central AC system (fan coil/condenser) roof down to wood substrate. Insepct existing wood for damage or as needed. Install ice and water shield as per CT building code. Install.

    $11K
Satellite view of 7 30 2026, Trumbull, CTSatellite view
2026

7 30 2026

Trumbull, CT
  • 2026Mechanical

    Installation Contractor siding in a Board of a replacement central AC system (air handler/condenser) shall furnish and install 12 inch exposure James Hardie fiber cement and Batten style, utilizing Smooth siding panels and battens in the.

    $11K
Satellite view of 6 26 2026, Trumbull, CTSatellite view
2026

6 26 2026

Trumbull, CT
  • 2026Mechanical

    Installation of a replacement central AC system (evaporator coil/condenser).

    $8K
Satellite view of 28 Calvin Rd, Wilton, CTSatellite view
2026

28 Calvin Rd

Wilton, CT
  • 2026Mechanical

    HVAC, Geothermal, Chimney liners & Oil Tank Permit WILTON

    $24.5K
Satellite view of 4 10 2026 Rd, Trumbull, CTSatellite view
2026

4 10 2026 Rd

Trumbull, CT
  • 2026Plumbing

    Replacement relocate and office renovation, of oil tank and oil water heater add switches, lights, and receptacles utilizing existing circuits. For converting 2 large offices into 5 smaller offices.(building permit.

    $10K
Satellite view of 4 8 2026, Trumbull, CTSatellite view
2026

4 8 2026

Trumbull, CT
  • 2026Mechanical

    Installation Replacing and one 2.5-ton of replacement oil boiler the air handler and condenser. Installing one 2.5-ton Carrier air handler Carrier condenser. All necessary ductwork modifications, line set.

    $14K
Satellite view of 3 30 2026, Trumbull, CTSatellite view
2026

3 30 2026

Trumbull, CT
  • 2026Mechanical

    One additional single-zone ductless unit to condition the living room area.

    $27K
Satellite view of 1 7 2026, Trumbull, CTSatellite view
2026

1 7 2026

Trumbull, CT
  • 2026Mechanical

    Installation of a replacement oil boiler.

    $12K
Satellite view of 1 23 2026, Trumbull, CTSatellite view
2026

1 23 2026

Trumbull, CT
  • 2026Mechanical

    Remove central bathroom-new outletskitchen- AC system for the installation of 2 air handler/heat pump systems electrical 2 lights and update existant lights, swithes and other new electrical, 5 outlets and update existant lights, switches and.

    $33K
Satellite view of 117 Strawberry Hill Ave, Norwalk, CTSatellite view
  • 2025Mechanical

    Installation of an attic air-handler system for the second floor and a two-zone ductless system for the first floor, with one outdoor heat pump.

    $33K
Satellite view of 12 Ledgewood Dr, Norwalk, CTSatellite view
2025

12 Ledgewood Dr

Norwalk, CT
  • 2025Mechanical

    Installation of (1) air handler/heat pump and single-zone ductless system, and (1) additional single-zone ductless system.

    $28K
Satellite view of 4 1 2025, Trumbull, CTSatellite view
2025

4 1 2025

Trumbull, CT
  • 2025Mechanical

    Install a new Replace existing 2 zone ductless system on first floor of home boiler in basement with Weil McLain WTGO-5 oil fired boiler in same.

    $13.5K
Satellite view of 148 E Ave, Norwalk, CTSatellite view
2025

148 E Ave

Norwalk, CT
  • 2025Mech Alt Comm

    Replacement water sourced geothermal packaged system no outdoor unit.

    $14K
Satellite view of 5 Live Oak Rd, Norwalk, CTSatellite view
2025

5 Live Oak Rd

Norwalk, CT
  • 2025Mechanical

    Installation of a replacement single-zone ductless system.

    $8.5K
  • 2022Mechanical

    Installation of a central AC system.

    $15K
Satellite view of 3 25 2025 Ct, Trumbull, CTSatellite view
2025

3 25 2025 Ct

Trumbull, CT
  • 2025Mechanical

    Replace central Remove and and footprint AC system (air handler/condenser) replace the existing air conditioning equipment in the exact same location as original with new Daikin brand DC4SEA3610 condenser and matching.

    $10K
Satellite view of 2 11 2025, Trumbull, CTSatellite view
2025

2 11 2025

Trumbull, CT
  • 2025Mechanical

    Installation of a replacement gas furnace and central AC system (evaporator coil/condenser).

    $10K
Satellite view of 8 Esquire Rd, Norwalk, CTSatellite view
2024

8 Esquire Rd

Norwalk, CT
  • 2024Mechanical

    Installation of an air handler/heat pump system, including all new ductwork.

    $25K
Satellite view of 12 19 2024 Trumbull, Trumbull, CTSatellite view
2024

12 19 2024 Trumbull

Trumbull, CT
  • 2024Mechanical

    Installation of a replacement single-zone ductless system in the family room.

    $7.6K
Satellite view of 21 Soundview Ave, Norwalk, CTSatellite view
2024

21 Soundview Ave

Norwalk, CT
  • 2024Mechanical

    Installation of two-zone ductless systems and new central AC systems, including all ductwork.

    $22.5K
Satellite view of 8 13 2024, Trumbull, CTSatellite view
2024

8 13 2024

Trumbull, CT
  • 2024Mechanical

    Installation of a replacement central AC system (fan coil/condenser).

    $10K
Satellite view of 393 Flax Hill Rd, Norwalk, CTSatellite view
2024

393 Flax Hill Rd

Norwalk, CT
  • 2024Mechanical

    Installation of an air handler/heat pump and a single-zone ductless system.

    $31K
Satellite view of 7 23 2024 Trumbull, Trumbull, CTSatellite view
2024

7 23 2024 Trumbull

Trumbull, CT
  • 2024Mechanical

    Installation of Remove bay window drain line-water of stove where air handler/heat pump and single zone ductless system and add slider door, move dummy wall to right against slider trim, move line- heat line inside dummy wall into new dummy wall, add cabinet to right wall was, add hood vent and pot filler above stove, and add cabinets to bar.

    $21K
Satellite view of 7 8 2024 Ct, Trumbull, CTSatellite view
2024

7 8 2024 Ct

Trumbull, CT
  • 2024Mechanical

    Installation of a four-zone ductless system.

    $19K
Satellite view of 7 22 2024, Trumbull, CTSatellite view
2024

7 22 2024

Trumbull, CT
  • 2024Mechanical

    Installation of a replacement central AC system for the first floor.

    $9K
Satellite view of 6 17 2024 Ct, Trumbull, CTSatellite view
2024

6 17 2024 Ct

Trumbull, CT
  • 2024Mechanical

    Installation of a replacement central AC system.

    $14K
Satellite view of 6 20 2024 Trumbull, Trumbull, CTSatellite view
2024

6 20 2024 Trumbull

Trumbull, CT
  • 2024Mechanical

    Installation of a replacement central AC system (air handler/condenser).

    $9.2K
Satellite view of 6611 5 13 2024 No St, Trumbull, CTSatellite view
2024

6611 5 13 2024 No St

Trumbull, CT
  • 2024Mechanical

    Installation of REMOVE OLD 3 zone ductless system to replace existing electric baseboard BOILER AND INDIRECT. Replace it with system 2000 with new indirect and.

    $17K
Satellite view of 7 Merrill Rd, Norwalk, CTSatellite view
2024

7 Merrill Rd

Norwalk, CT
  • 2024Mechanical

    Installation of 2 oil furnaces and 2 AC systems.

    $23.5K
Satellite view of 5 Wakerobin Rd, Norwalk, CTSatellite view
2024

5 Wakerobin Rd

Norwalk, CT
  • 2024Mechanical

    Removal of the existing oil heating system for the installation of an air handler/heat pump system.

    $17.5K
Satellite view of 4 12 2024 Trumbull, Trumbull, CTSatellite view
2024

4 12 2024 Trumbull

Trumbull, CT
  • 2024Mechanical

    Installation of Remove old oil new air handler/heat pump to include all attic ductwork tank in garage. Install a new Roth double wall 275 gallon oil tank in the rear of.

    $29.5K
Satellite view of 4 23 2024 Ct, Trumbull, CTSatellite view
2024

4 23 2024 Ct

Trumbull, CT
  • 2024Mechanical

    Install circuit breakers, air handler/heat pump and single-zone ductless system feeds, and disconnecting means for air-conditioning equipment.

    $26.6K
Satellite view of 3 19 2024, Trumbull, CTSatellite view
2024

3 19 2024

Trumbull, CT
  • 2024Mechanical

    Installation of replacement gas furnace.

    $5.6K
Satellite view of 289 E Ave, Norwalk, CTSatellite view
2024

289 E Ave

Norwalk, CT
  • 2024Mechanical

    Installation of an air handler/heat pump and a single-zone ductless system, including all affiliated ductwork, 3 ton.

    $80K
Satellite view of 21 Saxony Dr, Trumbull, CTSatellite view
2024

21 Saxony Dr

Trumbull, CT
  • 2024Mechanical

    10100 Installation Wire of replacement gas boiler new bathroom, heat/AC system, change outlets kitchen area.add 2 island.

    $6.6K
Satellite view of 18 Range Rd, Norwalk, CTSatellite view
2023

18 Range Rd

Norwalk, CT
  • 2023Mechanical

    Installation of an air handler/geothermal heat pump system.

    $36.2K
Satellite view of 71 Perry Ave, Norwalk, CTSatellite view
2023

71 Perry Ave

Norwalk, CT
  • 2023Mechanical

    Replace the gas furnace and central air conditioning with a heat pump/gas furnace hydro-air system.

    $14K
  • 2022Mechanical

    Installation of a ductless 1 ton.

    $5K
Satellite view of 6611, Trumbull, CTSatellite view
2023

6611

Trumbull, CT
  • 2023Mechanical

    10900 Installation of replacement gas boiler WASTE, VENT AND WATER LIES FOR 1 BASIN 1 TOILET AND 1 SHOWER.

Satellite view of Trumbull, Trumbull, CTSatellite view
2023

Trumbull

Trumbull, CT
  • 2023Mechanical

    14000 Installation of replacement oil boiler.

    $6.6K
  • 2023Mechanical

    13950 Installation Installation of replacement gas furnace and hot water heater of 2 airhanlders with hydro heating with 2 outdoor condensors.

    $6.6K
  • 2023Mechanical

    13426 Oil to Natural gas Boiler Conversion.

    $6.6K
Satellite view of 64 Grumman Ave, Norwalk, CTSatellite view
2023

64 Grumman Ave

Norwalk, CT
  • 2023Mechanical

    Installation of a single-zone ductless system.

    $6K
  • 2023Mechanical

    Installation of (1) two-stage packaged geothermal system, including all ductwork.

    $44.9K
Satellite view of 34 Harbor View Ave, Norwalk, CTSatellite view
2023

34 Harbor View Ave

Norwalk, CT
  • 2023Mechanical

    Installation of an air handler/heat pump system and a 6-zone ductless system, Mitsubishi Mxz-sm, 5 Ton.

    $61.4K
Satellite view of 18 Hills Ln, Norwalk, CTSatellite view
2023

18 Hills Ln

Norwalk, CT
  • 2023Mechanical

    Installation of a replacement central AC system, 2.5 ton AC.

    $6.5K
Satellite view of 50 Raymond Ter, Norwalk, CTSatellite view
2023

50 Raymond Ter

Norwalk, CT
  • 2023Mechanical

    Installation of an air handler/heat pump and single-zone ductless system, 3.5 ton.

    $20.3K
Satellite view of 23 William St, Norwalk, CTSatellite view
2023

23 William St

Norwalk, CT
  • 2023Mechanical

    Installation of an air handler/heat pump and a two-zone ductless system, 3.5-ton system.

    $26K
Satellite view of 105 Richards Ave, Norwalk, CTSatellite view
2023

105 Richards Ave

Norwalk, CT
  • 2023Mechanical

    Installation of a replacement gas furnace and central AC system.

    $9.9K
Satellite view of 13 White Barns Ln, Norwalk, CTSatellite view
2023

13 White Barns Ln

Norwalk, CT
  • 2023Mechanical

    Installation of 2 gas furnace and central air conditioning systems.

    $40K
Satellite view of 109 Murray St, Norwalk, CTSatellite view
2023

109 Murray St

Norwalk, CT
  • 2023Mechanical

    Oil to propane system conversion, replacing furnace and AC and adding a zone.

    $41.7K
Satellite view of 7 Clifford St, Norwalk, CTSatellite view
2022

7 Clifford St

Norwalk, CT
  • 2022Mechanical

    Installation of a heat pump and air handler with an electric heat strip; 3-ton heat pump.

    $11.6K
Satellite view of 5 Hunt St, Norwalk, CTSatellite view
2022

5 Hunt St

Norwalk, CT
  • 2022Mechanical

    Installation of 2 replacement air handlers/heat pump systems for central air conditioning.

    $15.9K
Satellite view of 53 Toilsome Ave, Norwalk, CTSatellite view
2022

53 Toilsome Ave

Norwalk, CT
  • 2022Mechanical

    Installation of Mitsubishi multi-zone 3 ductless system, 0 2.5 ton.

    $10K
Satellite view of 5 New St, Norwalk, CTSatellite view
2022

5 New St

Norwalk, CT
  • 2022Mechanical

    Installation of a Mitsubishi MX2 ductless 4-ton, multi-zone 4 system.

    $20K
Satellite view of 49 Walter Ave, Norwalk, CTSatellite view
2022

49 Walter Ave

Norwalk, CT
  • 2022Mechanical

    Installation of a replacement gas furnace and central AC system.

    $10K
Satellite view of 4 Jayne Wy, Norwalk, CTSatellite view
2022

4 Jayne Wy

Norwalk, CT
  • 2022Mechanical

    Installation of a heat pump, water heater, and 1-ton ductless system.

    $20.9K
Satellite view of 45 Stuart Ave, Norwalk, CTSatellite view
2022

45 Stuart Ave

Norwalk, CT
  • 2022Mech Alt Comm

    Installation of a replacement central AC system.

    $7.8K
Satellite view of 1 Island Dr, Norwalk, CTSatellite view
2022

1 Island Dr

Norwalk, CT
  • 2022Mechanical

    Installation of a replacement heat pump system.

    $11K
Satellite view of 106 County St, Norwalk, CTSatellite view
2022

106 County St

Norwalk, CT
  • 2022Mechanical

    Replacement of 3-ton heat pump, including necessary duct modifications.

    $9K
Satellite view of 15 Perry Ave, Norwalk, CTSatellite view
2021

15 Perry Ave

Norwalk, CT
  • 2021Mechanical

    Installation of ducted heat pump - 1/= 1/2-ton system, 1-ton system.

    $15K
Satellite view of 4 Hill Ct, Norwalk, CTSatellite view
2021

4 Hill Ct

Norwalk, CT
  • 2021Mechanical

    Installation of replacement gas furnace.

    $5.2K
Satellite view of 22 Douglas Dr, Norwalk, CTSatellite view
2021

22 Douglas Dr

Norwalk, CT
  • 2021Mechanical

    Installation of hydro heating coil, add 3 supply vents, split existing second floor trunk, replace panel and add zone valve to tie in mudroom to hot water baseboard zone, conversion to hydro air with existing equipment.

    $15K
Satellite view of 55 Ledgewood Dr, Norwalk, CTSatellite view
2021

55 Ledgewood Dr

Norwalk, CT
  • 2021Mechanical

    Installation of multi zone ductless system, air handler, 2 walls mounts.

    $18K