Updated: Jan 06, 2026
Location and Projects
Address
19840 Graystone Rd, White Hall, MD, 21161
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Viper Air HVAC/Mechanical Contractor
Viper Air Inc, 19840 Graystone Rd, White Hall, MD holds a Non Resident Contractor license according to the New Castle County license board.
Their BuildZoom score of 100 ranks in the top 13% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Viper Air Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Viper Air Inc Contact Information
Address: 19840 Graystone Rd, White Hall, MD 21161
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Viper Air Inc White Hall
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Viper Air Inc has a BuildZoom score of 100, which places them above 87% of 58,058 contractors in Maryland.
Activity
|
3 projects
|
2025 |
|
3 projects
|
2023 |
Our building permit records indicate that Viper Air Inc has worked on at least
6.0 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
|
6 projects
|
HVAC projects |
|
5 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Viper Air Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $15,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Supply and install (1) spacepak high velocity ducted split r410a - 3 ton air conditioning system
Valuation:
$15,000
Permit #:
M02230213
Status:
filed
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Relocate and addition return air devices. insulate and seal new ductwork. comfort air balance. all hvac equipment existing
Valuation:
$2,300
Permit #:
M02213553
Status:
complete
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
Commercial hvac addition alteration permit
2025-08-06
Suite 230 glr partners ductwork modifications air devices and (2) new programmable thermostats
Valuation:
N/A
Permit #:
M25001123
Status:
issued
Fee:
$335
Permit Type:
N/A
Building Type:
N/A
Install hvac equipment
Valuation:
$10,650
Permit #:
M02226373
Status:
complete
Fee:
$172
Permit Type:
N/A
Building Type:
N/A
Addition heating & air conditioning addition 3 gas/elec rooftop units w/ductwork (3) zones 360, 000 btu's refrigerant piping for walk-in boxes
Valuation:
$42,000
Permit #:
M02195809
Status:
complete
Fee:
$271
Permit Type:
N/A
Building Type:
N/A
Install new kitchen hood and grease duct
Valuation:
$5,200
Permit #:
M02211511
Status:
expired
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Exhaust & make-up for (2) grease hoods, exhaust for one heat removal hood *rv90420dkc**rv9/18/20*nmn
Valuation:
$13,000
Permit #:
M02199082
Status:
complete
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning install qty (1) 4 ton heat pump and duct work asso ciated with it.2 bathroom exhaust fans 75cfm
Valuation:
N/A
Permit #:
M02192472
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning install (1) 2 ton heat pump and duct work associat ed with it. 1 bathroom exhasut fan 75cfm
Valuation:
N/A
Permit #:
M02192473
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Moved supply register and added one bathroom exhaust fan
Valuation:
N/A
Permit #:
M21000029
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Mechanical for white box addition toilet exhaust fan and electric wall heater
Valuation:
$1,100
Permit #:
M02196538
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace furnace and condensing unit replace existing furnace evaporator coil condens ing unit with 1 zone 100, 000 btu equipment
Valuation:
N/A
Permit #:
M02182402
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning addition gas/elec rooftop unit with spiral ductwork. ad d toilet exhaust fan
Valuation:
$9,000
Permit #:
M02186203
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Single family dwelling gas conversion
Valuation:
N/A
Permit #:
M20000351
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Hvac work for change of use: subway. replacement of air condition 1 unit also adding refrigeration and hood system
Valuation:
N/A
Permit #:
201623056
Status:
issued
Fee:
N/A
Permit Type:
HVAC
Building Type:
N/A
Addition heating and air conditioning addition (2) new rooftop units
Valuation:
$8,000
Permit #:
M02181831
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Furnish and install two 5-ton split system heat pumps complete with ductwork and air devices. furnish and install two louvers with motorized dampers and two exhaust fans. install only owner furnished air rotation unit. furnish and install toilet exhaust
Valuation:
$31,000
Permit #:
M02213275
Status:
complete
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Install (1) 7.5 ton gas/electric remote terminal unit make-up air and kitchen exhaust fan. (2) toilet exhaust fans make-up air ductwork and automatic temperature controls
Valuation:
$32,000
Permit #:
M02210598
Status:
complete
Fee:
$216
Permit Type:
N/A
Building Type:
N/A
Addition heating and air conditioning addition new supply air ductwork ductless split system. (3) zones and 12, 000 btu's
Valuation:
$8,800
Permit #:
M02165072
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Addition carrier rooftop with insulated ductwork- addition (1) carrier 2-ton mini-split. toilet exhaust
Valuation:
$19,800
Permit #:
M02209351
Status:
expired
Fee:
$148
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Viper Air Inc License info
Verified License
| License # | 2011120789 |
| Status | Active |
| State | New Castle County |
| Type | Non Resident Contractor |
| Date Issued | 01-01-2026 |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Viper Air Inc at the State of Delaware Department of Finance: Division of Revenue.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
39
Permits
- Building permit records show that Viper Air Inc has worked on 39 permitted projects.