Updated: Jul 12, 2026
Location and Projects
Address
820 FOUR ROD RD, Berlin, CT, 06037
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Douglas Mechanical Services Inc
Douglas Mechanical Services Inc, 820 Four Rod Rd, Berlin, CT holds a Home Improvement Contractor license according to the Connecticut license board.
Their BuildZoom score of 106 ranks in the top 7% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Douglas Mechanical Services Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Douglas Mechanical Services Inc Services
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Douglas Mechanical Services Inc Contact Information
Phone Number: (860) 357-4952
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Address: 820 FOUR ROD RD, Berlin, CT 06037
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Douglas Mechanical Services Inc Berlin
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Douglas Mechanical Services Inc has a BuildZoom score of 106, which places them above 93% of 12,093 contractors in Connecticut.
Activity
|
10 projects
|
2025 |
|
12 projects
|
2024 |
|
17 projects
|
2023 |
Our building permit records indicate that Douglas Mechanical Services Inc has worked on at least
39.0 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
|
3 projects
|
Home Additions |
|
30 projects
|
HVAC projects |
|
22 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Douglas Mechanical Services Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
3 projects
|
< $5k |
|
13 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $16,661. 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 Douglas Mechanical Services Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of a new bosch 20 seer heat pump system with an external hot water hydro coil. includes the new indoor air handler unit and outdoor heat pump unit. includes installation of all new ductwork which will reach all areas of the 1st floor with new floor mounted air vents. the ductwork will need to be aero sealed to meet code. electrical wiring will get rerouted to the new indo... see more
Valuation:
$21,378
Permit #:
PRMH202500875
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
One family dwelli...
Price is for the replacement of the getting past its useable lifespan r-22 condenser coil and furnace. this system is currently in the attic space and will be set horizontally. new system will be a 410a system. the new cased coil will be mated to the new furnace and then have a new plenum attached. all transitions from new plenum will be made to the existing ductwork. condenser will b... see more
Valuation:
$14,514
Permit #:
PRMH202503057
Status:
applied
Fee:
N/A
Permit Type:
New
Building Type:
R-residential
Quoted installation #51406 price is for the replacement of the past its useable lifespan condenser and coil. the line set will be reused as much as possible. the new coil will be ducted into the same plenum. new coil is almost identical to old coil size. condenser will be set outside in the same location as the existing one is and will be set on a new pad and will have a new properly ... see more
Valuation:
$9,486
Permit #:
PRMH202503049
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-3-residential o...
Quoted installation #51156 & residential air conditioner maintenance for 1 system on another system price is for the replacement of the existing getting past its usable life span natural gas furnace and split air conditioning system. a new outdoor receptacle will need to be installed within 25 feet of the outdoor unit per code. the new unit will be a upflow style furnace and ductwork ... see more
Valuation:
$14,454
Permit #:
PRMH202502725
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Installation of customer supplied materials for ducting and hydronic piping for the addition space. this is per plan and spec on stamped engineered drawings
Valuation:
$77,500
Permit #:
PRMH202500204
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
E-1-educational
Commercial or multi-family hvac repair & replacement mechanical permit application
2025-01-16
Quoted installation #46952 price is for the replacement of the 3 existing r-22 split systems with hot water coils. these coils are being heated by the existing gas fired boiler. this setup will be to upgrade to a heat pump system with the hydro coils and backup. this setup mated to the new thermostats will have the ability to run the heat pumps down to a certain temperature outside. w... see more
Valuation:
$41,014
Permit #:
MC-011044-2024
Status:
complete
Fee:
$936
Permit Type:
N/A
Building Type:
N/A
Residential mechanical hvac repair or replacement permit application
2024-10-04
Quoted installation #46952 price is for the replacement of the 3 existing r-22 split systems with hot water coils. these coils are being heated by the existing gas fired boiler. this setup will be to upgrade to a heat pump system with the hydro coils and backup. this setup mated to the new thermostats will have the ability to run the heat pumps down to a certain temperature outside. w... see more
Valuation:
$41,014
Permit #:
MR-011015-2024
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Oil to gas conversion price is for the replacement of the existing oil fired boiler with tankless coil to a new chimney vented cast iron boiler. a new 40 gallon indirect water heater will be installed to meet the needs of the space. all new supply and return headers will be installed with proper purge assemblies. during this project we suggest that the chimney be cleaned and inspected... see more
Valuation:
$20,238
Permit #:
MISC-MEC-24-000530
Status:
issued
Fee:
$705
Permit Type:
Equipment install...
Building Type:
Commercial
Quoted installation #45517 1st and 2nd floor hi-efficiency combi boilers/installation of two new lochinvar noble hi-efficiency wall hung boilers for the 1st and 2nd floor apartments. the new boilers will be mounted on the wall along with new plywood walls. includes all new boiler trim kits pumps isolation valves and purge assemblies. the heating piping gas piping and electrical wiring... see more
Valuation:
$20,000
Permit #:
PRMH202405558
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-3-residential o...
Quoted installation #45516 2nd floor bosch system installation of a new bosch 20 seer heat pump system with all new ductwork. consisting of a new indoor air handler unit and outdoor heat pump. the indoor air handler and all new ductwork will be installed in the walk up attic. the ductwork will be installed running around the outside perimeter with multiple supply and return ceiling mo... see more
Valuation:
$23,000
Permit #:
PRMH202404009
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Quoted installation # 44800 bosch hvac system replacement installation of a new bosch 96% hi-efficiency gas furnace matched with a bosch 20 seer hi-efficiency heat pump system. the heat pump system will provide efficient heating and cooling while still relying on the furnace for back up heat. this system will consist of the new furnace and indoor heat pump coil being installed in the ... see more
Valuation:
$16,661
Permit #:
PRMH202403740
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Quoted installation #44338 bosch 20 seer heat pump system installation of a new bosch 20 seer heat pump system with all new ductwork. the customer is providing the bosch indoor air handler bosch outdoor heat pump refrigeration line set outdoor pad riser indoor drain pan electrical whip disconnect and surge protector. all other required materials and labor will be provided by dms. the... see more
Valuation:
$14,077
Permit #:
PRMH202402064
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Install replacement rooftop units (rtu’s 1 2 3 4 6 and 9). new return air smoke detectors. reconnect to existing gas service. service disconnects and convenience outlets by others
Valuation:
$110,000
Permit #:
MISC-MEC-23-000392
Status:
issued
Fee:
$3,454
Permit Type:
Replacement
Building Type:
Commercial
Quoted installation #40766 gym hvac system replacement - condo common area at quaker green 30 schoolhouse dr. aka 999 south quaker lane. installation of a new bosch hi-efficiency gas furnace and bosch 20 seer heat pump cooling system. this consists of a new indoor furnace indoor coil and outdoor condenser unit. the furnace and indoor coil will be placed in the same position. there wil... see more
Valuation:
$15,718
Permit #:
PRMH202304106
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Installation of a new bosch hi-efficiency gas furnace and bosch 20 seer heat pump system. this consists of a new indoor furnace heat pump coil and outdoor heat pump unit. the furnace and indoor coil will be placed in the same position. there will be some ductwork modifications to get a perfect fit. new air filter kit neutralizer condensate pump updated electrical switch with gfi servi... see more
Valuation:
$16,817
Permit #:
PRMH202303291
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
One family dwelli...
Install new american standard natural gas furnace in the same position and raise up on cement blocks. ductwork modifications with the new furnace being shorter. install new b-vent double wall exhaust piping from the furnace to the chimney opening. b-vent is required per code. reconnect gas piping to the furnace with a new shut off valve. reconnect electrical wiring along with a new sh... see more
Valuation:
$7,024
Permit #:
MISC-MEC-24-000012
Status:
complete
Fee:
$312
Permit Type:
Replacement
Building Type:
Commercial
Quoted installation # 38822 quoted installation # 38822 price is for the removal of the existing wiel mclean 90 percent boiler and the installation of a new weil mclean 90% like capacity gas boiler. the new boiler will be piped back into the existing supply and return headers. the existing direct venting and gas piping will also be adapted to existing. this is a direct change out boil... see more
Valuation:
$5,148
Permit #:
PRMH202305578
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
One family dwelli...
Quoted installation # 40579 replacement pool heater at quaker green 30 schoolhouse dr. aka 999 south quaker lane. installation of a new lochinvar hi-efficiency pool heater. this new pool heater has higher btu capacity. the existing pool heater is rated at 330k btu and the new lochinvar pool heater is 400k btu. the gas and electrical connections will reconnect with no major changes. th... see more
Valuation:
$10,515
Permit #:
PRMH202304223
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
A-4-assembly aren...
The following repairs will need to be done to get the system to safe and proper operating conditions. adding a new 6 ceiling mounted supply air vent by the back of the kitchen upgrading two existing 6 supply ducts to 7 supply air ducts and an additional ceiling return air grille. new full size auxiliary drain pan properly mounted and pitched. the furnace and air conditioning coil will... see more
Valuation:
$9,975
Permit #:
PRMH202302743
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Price is for the installation of (2) new supply runs for the first floor addition and (2) new supply runs that will be for the second floor addition. first floor supplies will be in the floor and the second floor supplies will be in the ceiling. 1st floor will have a return transfer grill in the wall. this will be offset and be internally lined with acoustical lining 2nd floor will ha... see more
Valuation:
$4,058
Permit #:
PRMH202305253
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
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Douglas Mechanical Services Inc License info
Verified License
| License # | HIC.0645793 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Douglas Mechanical Services Inc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
159
Permits
- Building permit records show that Douglas Mechanical Services Inc has worked on 159 permitted projects.