Updated: Jun 05, 2026
Location and Projects
Address
18 BERKSHIRE RD, Rocky Hill, CT, 06067
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Christopher R Mull HVAC/Mechanical Contractor
Christopher R Mull, 18 Berkshire Rd, Rocky Hill, CT (Employee: Christopher Mull) holds a Heating, Piping & Cooling Unlimited Contractor license according to the Connecticut license board.
Their BuildZoom score of 91 ranks in the top 37% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Christopher R Mull, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Christopher R Mull Contact Information
Address: 18 BERKSHIRE RD, Rocky Hill, CT 06067
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Oil to gas conversion. removing oil equipment and oil tank replacing with cast iron new yorker cg50e (140, 000 input 117, 000 doe cap 102, 000 net ahri) natural gas boiler with indirect water heater. gas line will brought over to new appliance with black iron threaded pipe. chimney will also be lined with appropriate style liner and cap
Valuation:
$9,000
Permit #:
M-18-140
Status:
issued
Fee:
$160
Permit Type:
Boiler/furnace re...
Building Type:
Single family
Installation of a ducted 2-ton american standard central air system for upper split area and 2 9, 000 btu ductless mitsubishi split units for lower split area
Valuation:
$11,000
Permit #:
M-18-141
Status:
issued
Fee:
$192
Permit Type:
Air conditioning
Building Type:
Single family
Replacing old boiler with a new yorkerap49ou steel boiler 88, 000 btu output
Valuation:
$5,650
Permit #:
M-19-526
Status:
issued
Fee:
$125
Permit Type:
Oil burner/oil bo...
Building Type:
Residential improved
Replacement of gas furnace with high efficiency 80, 000 btu condensing gas furnace. water heater and existing furnace center flue chimney is already lined and water heater will have secondary draft roll out switch. a 2.5 ton american standard a coil and condenser will be installed at the same time. exhaust piping will terminate on the side of the house and condenser will be installed ... see more
Valuation:
$7,200
Permit #:
M-17-163
Status:
complete
Fee:
$144
Permit Type:
HVAC/mechanical - r
Building Type:
Single family
Single 2 ton american standard ductless mini split system for office waiting area. outdoor unit will be situated on roof for theft deterrent. outdoor unit 4txk3824a10nuaa indoor unit 4mxw3824a10nuaa must meet 2012 ibc imc iecc along with amendments
Valuation:
$4,500
Permit #:
M-17-211
Status:
issued
Fee:
$81
Permit Type:
HVAC
Building Type:
Commercial building
Installation of two mitsubishi units to one outdoor unit. the first floor will have a wall mounted unit(15k) and the second will have a ducted unit(12k) that will have a supply and return in each room and hallway
Valuation:
N/A
Permit #:
21-178M
Status:
complete
Fee:
$10
Permit Type:
Air conditioning ...
Building Type:
N/A
Replacing old air conditioning system with american standard 14 seer condensor. 3 ton air handler & 410a line set. cooling load provided. must meet 2009 irc iecc along with ct amendements
Valuation:
$5,700
Permit #:
M-16-141
Status:
issued
Fee:
$95
Permit Type:
Air conditioning
Building Type:
Residential improved
Installing new a/c equipment goodman gsx-13 2 ton 13 seer condensor, 2 ton coil line set. must meet 2012 irc, iecc along with amendments.
Valuation:
$5,300
Permit #:
M-17-191
Status:
complete
Fee:
$95
Permit Type:
Air Conditioning
Building Type:
Residential Improved
Emergency replacement no heat. install new pennco 3kw0.75 90, 000 btu (no heatloss provided) please provide per code radiation load
Valuation:
$5,300
Permit #:
M-15-404
Status:
issued
Fee:
$95
Permit Type:
Heating
Building Type:
Residential improved
Install a 4 in. chimney liner for a natural gas water heater. also thermal cut off switch for furnace
Valuation:
$350
Permit #:
M-18-15
Status:
complete
Fee:
$30
Permit Type:
Water heater
Building Type:
Single family
Replacement of central air conditioning and gas furnace (same dimensions footprint as existing)
Valuation:
$10,498
Permit #:
2676
Status:
issued
Fee:
N/A
Permit Type:
HVAC:subcontract - r
Building Type:
Single family condo
Install new hvac system. please be sure to call for all inspections. 860-258-2733
Valuation:
$12,000
Permit #:
MP-2016-222
Status:
Issued
Fee:
$204
Permit Type:
Boiler
Building Type:
N/A
Replacement of natural gas chimney vented 50 gallon water heater
Valuation:
$1,200
Permit #:
P-17-257
Status:
complete
Fee:
$46
Permit Type:
Water heater
Building Type:
Single family
Replacement bolier with gas boiler & gas piping
Valuation:
$6,500
Permit #:
MP-2016-116
Status:
Closed
Fee:
$123
Permit Type:
Boiler
Building Type:
N/A
Install a 3 ton central air conditioning system
Valuation:
$9,000
Permit #:
M-17-90
Status:
complete
Fee:
$160
Permit Type:
Air conditioning
Building Type:
Single family
Direct replacement of natural gas 50 gallon water heater
Valuation:
$1,300
Permit #:
M-17-71
Status:
complete
Fee:
$46
Permit Type:
Water heater
Building Type:
Single family
Direct water heater replacement direct water heater replacement
Valuation:
$800
Permit #:
PP-2017-136
Status:
complete
Fee:
$25
Permit Type:
Water heater
Building Type:
N/A
Install gas line for conversion of burner
Valuation:
$950
Permit #:
MP-2015-146
Status:
Closed
Fee:
$25
Permit Type:
Furnace
Building Type:
N/A
Install replacement 40 gal nat gas water heater with external spill switch
Valuation:
$850
Permit #:
P-15-226
Status:
complete
Fee:
$30
Permit Type:
Water heater
Building Type:
Single family
Install condensing gas boiler 4 chimney liner for natural draft water heater vent piping and all associated heat and gas piping
Valuation:
$6,000
Permit #:
M-14-210
Status:
complete
Fee:
$111
Permit Type:
Boiler/furnace re...
Building Type:
Single family
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Christopher R Mull License info
Verified License
| License # | HTG.0400101-S1 |
| Status | Active |
| State | Connecticut |
| Type | Heating, Piping & Cooling Unlimited Contractor |
| Date Issued | 09-01-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Christopher R Mull at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
47
Permits
- Building permit records show that Christopher R Mull has worked on 47 permitted projects.
Christopher R Mull Employees
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Christopher Mull