Updated: Jun 24, 2026
Location and Projects
Address
74 Northwest Dr, Plainville, CT, 06062
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Total Mechanical Systems, LLC Photos
Total Mechanical Systems, LLC
Established in 2002, Total Mechanical Systems is a home services contractor that provides residents and commercial clients in Connecticut with quality air conditioning, heating, plumbing and electrical home comfort solutions. We are one of the fastest growing HVAC companies in the northeast and the largest Home Depot Authorized Service Provider for HVAC and bathroom remodels in the state.
From BuildZoom: Total Mechanical Systems, LLC, 74 Northwest Dr, Plainville, CT holds a Home Improvement Contractor license and 1 other license according to the Connecticut license board.
Their BuildZoom score of 101 ranks in the top 12% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Total Mechanical Systems, LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Total Mechanical Systems, LLC Contact Information
Phone Number: (860) 410-6950
Address: 74 Northwest Dr, Plainville, CT 06062
Total Mechanical Systems, LLC Plainville
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Total Mechanical Systems, LLC has a BuildZoom score of 101, which places them above 88% of 12,093 contractors in Connecticut.
Activity
|
91 projects
|
2025 |
|
197 projects
|
2024 |
|
149 projects
|
2023 |
Our building permit records indicate that Total Mechanical Systems, LLC has worked on at least
437.0 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
|
180 projects
|
Home Additions |
|
3 projects
|
New Constructions |
|
154 projects
|
Mechanical projects |
|
151 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Total Mechanical Systems, LLC mostly works on
home addition
and mechanical project
projects.
Pricing
|
96 projects
|
< $5k |
|
307 projects
|
$5k-$20k |
|
46 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $7,400. 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 Total Mechanical Systems, LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Direct furnace and air conditioning replacement remove existing furnace condenser and coil. replace with lennox 66 000 btu furnace model: ml296uh070xv36b lennox 3 ton air conditioner model: ml17kc2-036-230 and lennox 3 ton evap coil model: ck40ct-30/36b-71. addition supply in basement and move current supplies and return run return up to second floor from basement
Valuation:
$16,000
Permit #:
PRMH202500888
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Direct furnace and air conditioning replacement. remove existing furnace condenser and coil. replace with lennox 66 000 btu furnace model ml296uh070xv36b lennox 3-ton air conditioner model ml18xc2-036-230 lennox 3-ton evaporator coil model ck40ct-36b-01. addition return through 1st floor to 2nd floor
Valuation:
$16,000
Permit #:
PRMH202500799
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
**cancelled - work not done by this applicant** convert from oil to propane. already has tanks. remove existing oil boiler replace with laars 199, 000 btu boiler model: lfthf199na3xn. spiro-vent air elimination kit. install a new 1 gas line from a new gas meter or current tee to the new boiler with one 1 x 3/4 tee for future connections (50ft max length)
Valuation:
$15,277
Permit #:
PRMH202500399
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
1st floor tub to tub replacement with the same footprint and no structural work. install acrylic tub with wet walls and addition kohler rite-temp valve. your application for a building permit has been reviewed for compliance with the 2022 state of connecticut building code. the permit for the proposed work is approved. all work is subjected to field inspections
Valuation:
$4,200
Permit #:
P-25-0059
Status:
issued
Fee:
$71
Permit Type:
plumbing
Building Type:
N/A
1st floor tub to tub replacement with the same footprint and no structural work. install acrylic tub with wet walls and addition kohler rite-temp valve. your application for a building permit has been reviewed for compliance with the 2022 state of connecticut building code. the permit for the proposed work is approved. all work is subjected to field inspections. comments below are to ... see more
Valuation:
$2,000
Permit #:
B-25-0210
Status:
issued
Fee:
$39
Permit Type:
Alteration/renova...
Building Type:
N/A
Remove existing furnace in unfinished basement replace with lennox merit 66, 000 btu furnace model: ml180uh070e36a. remove existing condenser on left side of home replace with lennox merit 2 ton air conditioner model: ml17xc1-024-230 and lennox 2 ton evap coil model: ck40ct-24b
Valuation:
$1,000
Permit #:
PREL202407233
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Replacing existing. install 3 high velocity unico air conditioning & air handlers with hydro coil add-on. den and 2nd floor systems are 3 ton. main system is 5 ton. addition 4 additional supplies to the den system to meet unico requirements
Valuation:
$55,555
Permit #:
M-24-0447
Status:
issued
Fee:
$799
Permit Type:
Air conditioning ...
Building Type:
N/A
Remove existing oil boiler. replace with new burnham ng chimney vented cast iron boiler 70k btu. model: x-203. 20 ft of gas pipe from meter or current existing tee(25 ft max). gas already on every floor. eversource contacted for new meter already
Valuation:
$16,000
Permit #:
PR20250253
Status:
issued
Fee:
$479
Permit Type:
N/A
Building Type:
N/A
Remove existing boilers (2) replace with laars ft series 199, 000 btu boiler model: lftcf199na1xn (2). one for 1st fl unit #2. one for 2nd fl unit #4. remove existing water heater
Valuation:
$35,844
Permit #:
PRMH202500140
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Directly replacing current furnace with lennox elite 2 stage 80% 110, 000 btu furnace model el280uh110e60c. lennox ck40ct-36b-01 3 ton evap coil model: ck40ct-36b-01 and installing new air conditioning lennox elite 18 2 stage air conditioning 3 ton air conditioner model: el18xcvs036-230
Valuation:
$15,810
Permit #:
PRMH202406870
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Remove and replace existing attic air conditioning system with lennox ml17xc1 2.5 ton & air handler. install new hydro coil for heating. install uv bulb and 5” filter & cabinet. run 1 new supply from attic through 2nd floor bedroom into ceiling of kitchen. box in new supply
Valuation:
$15,000
Permit #:
PRMH202405877
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Remove existing furnace in unfinished basement replace with lennox merit 66, 000 btu furnace model: ml180uh070e36a. remove existing condenser on left side of home replace with lennox merit 2 ton air conditioner model: ml17xc1-024-230 and lennox 2 ton evap coil model: ck40ct-24b
Valuation:
$9,987
Permit #:
PRMH202407232
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Install new 5 port mitsubishi hyper heat with 3 high wall units and 1 slim ducted system with 4 supplies and 1 return. 18k pancake for upstairs bedrooms 18k head for living room 12k head for dining room 6k head for office
Valuation:
$17,000
Permit #:
PRMH202502503
Status:
applied
Fee:
N/A
Permit Type:
New
Building Type:
R-residential
Remove existing 2 zone oil boiler and indirect water heater. replace with 2 zone burnham oil fired chimney vented cast iron boiler 140, 000 btu model: v8h3wet (w/coil)
Valuation:
$18,468
Permit #:
PRMH202500190
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Crs#19892317. upgrade service panel to 200 amps. install new heatpump condenser 4 zone unit model:38mghbq30da3. one 18k btu head to go in living room. 3 9k btu heads one each to go in office and the two bedrooms
Valuation:
$21,000
Permit #:
PR20250252
Status:
issued
Fee:
$605
Permit Type:
N/A
Building Type:
N/A
Install innovair hyper-max 2zone 1.5 ton outdoor ductless unit model: vom18h7r2p7 in backyard. install two innovair 7k hi-wall indoor heads model: vmw08h7f7. one to go in living room and one in the downstairs bedrooms
Valuation:
$14,000
Permit #:
PR20244862
Status:
issued
Fee:
$429
Permit Type:
N/A
Building Type:
N/A
1st floor tub to shower conversion and 2nd floor shower to shower replacement with the same footprints and no structural work. install acrylic shower base and tub with wet walls and addition kohler rite-temp valve
Valuation:
$8,400
Permit #:
PR-014487-2025
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
2nd floor shower to shower replacement with the same footprint and no structural work. install acrylic shower base with wet walls and addition kohler rite-temp valve
Valuation:
$5,200
Permit #:
RP-25-66
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1st floor shower to shower replacement with the same footprint and no structural work. install acrylic shower base with wet walls and addition kohler rite-temp valve
Valuation:
$5,400
Permit #:
25-32P
Status:
expired
Fee:
$119
Permit Type:
Plum- other plumbing
Building Type:
N/A
Remove the existing 4 zone ng boiler. replace it with new floor mounted laars ft series 199, 000 btu boiler model: lfthf199na3xn and install 4 zone trim package
Valuation:
$15,920
Permit #:
PRMH202500359
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
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Total Mechanical Systems, LLC License info
Verified License
| License # | HIC.0655399 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Total Mechanical 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 # | HIC.0634532 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
- When BuildZoom last verified this license, it had an expiration date of March, 2026. Check the current license status of Total Mechanical Systems, LLC with the Connecticut Department of Consumer Protection
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
1.4K
Permits
- Building permit records show that Total Mechanical Systems, LLC has worked on 1391 permitted projects.