Updated: Jul 15, 2025
Location and Projects
Address
Alexandria, VA, 22302
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Mechanical Design Systems Inc
Mechanical Design Systems Inc, holds a Heating Ventilation And Air Conditioning (Hva) license and 1 other license according to the Virginia license board.
Their BuildZoom score of 103 ranks in the top 10% of 131,387 Virginia licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mechanical Design Systems Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mechanical Design Systems Inc Contact Information
Phone Number: (301) 877-9600
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Mechanical Design Systems Inc
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mechanical Design Systems Inc has a BuildZoom score of 103, which places them above 90% of 131,387 contractors in Virginia.
Activity
|
3 projects
|
2025 |
|
2 projects
|
2024 |
|
4 projects
|
2023 |
|
10 projects
|
2022 |
Our building permit records indicate that Mechanical Design Systems Inc has worked on at least
19.0 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
|
4 projects
|
Commercial Renovations |
|
14 projects
|
HVAC projects |
|
11 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Mechanical Design Systems Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
2 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
7 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $48,017. 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 Mechanical Design Systems Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
**targeted** - interior tenant build-out for museum storage space in an existing shell building. modifications to mep systems to accommodate the new tenant. installation of a new drive-in dock door. structural modifications to accommodate the new drive-in door and infill existing window openings
Valuation:
$50,000
Permit #:
MEC2025-00875
Status:
final
Fee:
$2,363
Permit Type:
N/A
Building Type:
N/A
**duplicate - see mec2024-01076** (1) new energy recovery unit (1) new rooftop unit (2) mini split systems (1) humidifier (1) dehumidifier (1) roof intake diffusers piping & ductwork
Valuation:
$379,600
Permit #:
MEC2024-02325
Status:
revoked
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
***targeted*** tlo - costco wholesale distribution center @ freedom 66 - building 2
Valuation:
$212,220
Permit #:
MEC2025-02092
Status:
issued
Fee:
$4,830
Permit Type:
N/A
Building Type:
N/A
(3) fan powered vav's (1) cooling only vav (1) duct heater (1) fan registers grilles diffusers & ductwork (bldc2022-01034)
Valuation:
$189,000
Permit #:
MEC2023-00040
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building permit separation description: to separate from b.p. # 212740160 rooms: 300 (reception), 351 (work) 352 (work) 353 (work) 354 (office) 355 (office) 356 (office) 357 (office) 358 (office) 359 (work) 360 (office) 361 (conf.) 362 (pantry) 363 (office) 364 (office) 365 (office) 366 (office) 367 (office) 368 (office) 369 (wellness) 370 (office) 371 (office) 372 (conf.) 374 (wksta ... see more
Valuation:
$48,017
Permit #:
220140006
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
Building Permit
215 Center St S, Vienna, VA
2021-02-23
(2) roof mounted air-cooled outside air handling units (1) air filtration unit (2) vrf outdoor units (2) exhaust fans (8) electric heaters (158) diffusers ductwork & piping
Valuation:
$1,060,000
Permit #:
210540203
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
Building Permit
215 Center St S, Vienna, VA
2021-03-01
(2) roof mounted air-cooled outside air handling units (1) air filtration unit (2) vrf outdoor units (2) exhaust fans (8) electric heaters (158) diffusers ductwork & piping
Valuation:
$1,060,000
Permit #:
210540208
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
Building Permit
215 Center St S, Vienna, VA
2021-02-23
(2) roof mounted air-cooled outside air handling units (1) air filtration unit (2) vrf outdoor units (2) exhaust fans (8) electric heaters (158) diffusers ductwork & piping
Valuation:
$1,060,000
Permit #:
210540204
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
1 heating equip @ 12 mbh 1 cooling equip @ 2 tons duct work install (1) wshp (2) manbars (2) wave guides (13) diffusers & ductwork new general office for existing tenant. new partitions per plan. some new lighting electrical and mechanical. some new plumbing. new finishes in affected area
Valuation:
$43,000
Permit #:
M2100388
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(2) new vav boxes (2) exhaust fans (2) door grilles (3) diffusers (2) return grilles relocate diffusers grilles and thermostats new ductwork
Valuation:
$28,000
Permit #:
MEC2024-01087
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Contractor states no ductwork - only moving diffuser within ceiling grid/alteration/repairs for interior renovation of existing coffee shop including new casework finishes and equipmentmodifications to existing hvac; new or relocated plumbing and electrical fixtures. new outside door
Valuation:
$1,200
Permit #:
MEC2021-01631
Status:
revoked
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
8 heating equip= 1 @ 14 mbh 1 @ 17 mbh 2 @ 24 mbh 1 @ 27 mbh 3 @ 34 mbh duct work 45 vav boxes 1 exhaust fan 222 diffusers interior alterations for the entire 5th floor for gsa. special inspections required
Valuation:
$442,542
Permit #:
M1901701
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical - provide and install (11) diffusers and grilles new flex duct and round duct balancing dampers certified air balance. starbucks coffee co
Valuation:
$7,472
Permit #:
20220824-086
Status:
complete
Fee:
$107
Permit Type:
N/A
Building Type:
N/A
Crematorium
Valuation:
$250,000
Permit #:
MEC2022-02522
Status:
final
Fee:
$1,332
Permit Type:
N/A
Building Type:
N/A
Building Permit
14026 Thunderbolt Pl, Chantilly, VA
2021-04-09
(1) new rooftop unit (1) electric heater (2) exhaust fans (85) diffusers ductwork & piping
Valuation:
$181,000
Permit #:
210780147
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
Building Permit
8150 Leesburg Pi, Vienna, VA
2021-02-16
(1) rooftop unit (2) water-source heat pumps (2) duct heaters (2) fans (45) diffusers (2) motorized dampers piping & ductwork
Valuation:
$97,000
Permit #:
210460166
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
(5) vav's (3) fans (67) diffusers (3) door louvers ductwork b2102779 floor 4 unit: 400, 425, 430
Valuation:
$61,000
Permit #:
M2200228
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building Permit
12730 Fair Lakes Ci, Fairfax, VA
2020-02-19
(1) computer room air conditioning unit (8) vav boxes (321) diffusers ductwork & piping
Valuation:
$266,000
Permit #:
200440099
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Office building
(1) outdoor condensing unit (6) indoor air conditioning units (1) duct heater (1) unit heater (2) fans (1) branch circuit controller (38) diffusers piping & ductwork no room to list details below in section 6 for indoor air conditioning units 5 & 6 they are the same unit model # pkfy-p12nhmu-e2 - 12 000 btu's per unit (locations are 1st fl atm cupboard & 1st fl data closet)
Valuation:
$56,849
Permit #:
MEC2019-00207
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2 cooling equip.6 tons 2 cooling equip 1.25 tons 2 cooling equip 3.33 tons 2 cooling equip 1.5 tons 2 cooling equip 2.5 tons 2 cooling equip 3 tons pipping equip duct work 6th floor suite #600
Valuation:
$175,900
Permit #:
M1900401
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Mechanical Design Systems Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Mechanical Design Systems Inc License info
Verified License
| License # | 2705022697 |
| Status | Active |
| State | Virginia |
| Type | Heating Ventilation And Air Conditioning (Hva) |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2025.
Verify this license's status for Mechanical Design Systems Inc at the Virginia Department of Professional and Occupational Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2705022697 |
| Status | Inactive |
| County | Spotsylvania County |
| Type | Contractor |
| Business Type | Corporation |
- According to the Spotsylvania County, VA, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Mechanical Design Systems Inc at the Spotsylvania County, VA.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
436
Permits
- Building permit records show that Mechanical Design Systems Inc has worked on 436 permitted projects.