Updated: Apr 30, 2026
Location and Projects
Address
4412 Tryon Rd., Raleigh, NC, 27606
Use our bidding system to
request a quote
Bahnson Environmental Specialties Construction
Based in Raleigh, North Carolina, Bahnson Environmental Specialties LLC designs and manufactures controlled walk-in and reach-in environmental chambers tailored to complex applications across multiple industries. For over two decades, the company has supplied precision-engineered environmental rooms and chambers for pharmaceutical laboratories, medical schools, museums, universities, and industrial facilities. Each project reflects strict reliability, stability, and redundancy requirements, enabling precise temperature control and performance for critical environments. Bahnson Environmental Specialties is recognized for its ability to address highly complex engineering challenges, offering customized solutions for clients needing efficiency and maximum operational reliability. Their chambers are developed to support projects where stringent environmental conditions are essential for research, preservation, or industrial processes.
Bahnson Environmental Specialties LLC Services
Start a project today:
Bahnson Environmental Specialties LLC Contact Information
Phone Number: (919) 834-4310
Edit
Address: 4412 Tryon Rd., Raleigh, NC 27606
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Building Permits by Bahnson Environmental Specialties LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
The existing solvent dispensing room 1064 and document room 1073 are located in a suite of rooms on the south side of the first floor of building 23. the small size of the current solvent dispensing room results in limited space for personnel and movement of materials while the current document room is relatively oversized. this project switches the function of these spaces allowing f... see more
Valuation:
$400,000
Permit #:
CBPR-054412-2021
Status:
issued
Fee:
$4,888
Permit Type:
N/A
Building Type:
N/A
Commercial existing building or structure permit
2023-11-22
Storage/warehouse
Valuation:
N/A
Permit #:
2231802
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
No Description Available
Valuation:
$5,500,000
Permit #:
CBPR-033701-2020
Status:
complete
Fee:
$24,018
Permit Type:
N/A
Building Type:
N/A
Commercial trade permit. electrical mechanical or plumbing
2022-09-19
Installation of piping for unit coolers condensing units and dryers on new environmental chamber/cold storage warehouse 15.127
Valuation:
$40,000
Permit #:
TR-089059-2022
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$554,000
Permit #:
14-572/000 000 COMM 00
Status:
issued
Fee:
N/A
Permit Type:
Commercial-altera...
Building Type:
*needs zone code
Install 1 walk in cooler phone 216 338 6591 contractor or 919 395 2921
Valuation:
$0
Permit #:
190278
Status:
A/P COMPLETED
Fee:
N/A
Permit Type:
Refrigeration com...
Building Type:
N/A
Install walk in cooler phone 216 338 6591 contractor -- per dan dockery
Valuation:
$0
Permit #:
201970
Status:
A/P COMPLETED
Fee:
N/A
Permit Type:
Refrigeration com...
Building Type:
N/A
2 incubator rooms on at 32.5c and one at 22.5c
Valuation:
$0
Permit #:
1128012
Status:
Complete
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Eight incubator rooms with remote ahu's
Valuation:
$0
Permit #:
1128549
Status:
Void
Fee:
$87
Permit Type:
N/A
Building Type:
N/A
Eight incubator rooms with remote ahu's
Valuation:
$0
Permit #:
1128550
Status:
Void
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Walk-in freezer and walkin coller
Valuation:
$0
Permit #:
1128346
Status:
Issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Merck building 120 - cold warehouse
Valuation:
$0
Permit #:
1322737
Status:
Complete
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
(8) environmetal chambers
Valuation:
$0
Permit #:
1125354
Status:
Complete
Fee:
$87
Permit Type:
N/A
Building Type:
N/A
Cree - alteration of 3rd floor - office use
Valuation:
$0
Permit #:
1230854
Status:
Complete
Fee:
$171
Permit Type:
N/A
Building Type:
N/A
Wiring 1 appl. ( environmental chamber) phone 919 829 6034 contractor
Valuation:
$0
Permit #:
204675
Status:
A/P COMPLETED
Fee:
N/A
Permit Type:
Electrical alt/ad...
Building Type:
N/A
Wiring walk in control temp rooms phone 216 338 6591 contractor
Valuation:
$0
Permit #:
193741
Status:
A/P COMPLETED
Fee:
N/A
Permit Type:
Electrical alt/ad...
Building Type:
N/A
Cold rooms light fixtures and controls
Valuation:
$0
Permit #:
0826158
Status:
Complete
Fee:
$47
Permit Type:
N/A
Building Type:
N/A
Relocate 2 refrigeration condensors
Valuation:
N/A
Permit #:
184923
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
3 walk-in coolers
Valuation:
$0
Permit #:
0920230
Status:
Complete
Fee:
$47
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$29,672
Permit #:
02-162/000 000 COMM 00
Status:
issued
Fee:
N/A
Permit Type:
Commercial-altera...
Building Type:
*needs zone code
Similar Contractors See more
142
BZ Score
$6K
Avg Project
-
Projects
140
BZ Score
$142K
Avg Project
-
Projects
167
BZ Score
$79.6K
Avg Project
-
Projects
Bahnson Environmental Specialties LLC Reviews
BuildZoom hasn't received any reviews for Bahnson Environmental Specialties LLC. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Bahnson Environmental Specialties LLC License info
Verified License
| License # | 1023017 |
| Status | Active |
| State | California |
| Type | Refrigeration |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Bahnson Environmental Specialties LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | U.07976 |
| Status | Inactive |
| State | North Carolina |
| Type | Electrical Contractors |
| Business Type | Ltd Liability |
- According to the North Carolina Board Of Electrical Contractors, 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 Bahnson Environmental Specialties LLC at the North Carolina Board Of Electrical Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | U.07976 |
| Status | Inactive |
| State | North Carolina |
| Type | Electrical Contractors |
| Business Type | Ltd Liability |
- According to the North Carolina Board Of Electrical Contractors, 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 Bahnson Environmental Specialties LLC at the North Carolina Board Of Electrical Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 08636 |
| Status | Inactive |
| State | North Carolina |
| Type | Heating Group 2, Plumbing Class I |
| Business Type | Ltd Liability |
- According to the North Carolina Board Of Examiners of Plumbing, Heating and Fire Sprinkler Contractors, 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 Bahnson Environmental Specialties LLC at the North Carolina Board Of Examiners of Plumbing, Heating and Fire Sprinkler Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 08636 |
| Status | Inactive |
| State | North Carolina |
| Type | Heating Group 2, Plumbing Class I |
| Business Type | Ltd Liability |
- According to the North Carolina Board Of Examiners of Plumbing, Heating and Fire Sprinkler Contractors, 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 Bahnson Environmental Specialties LLC at the North Carolina Board Of Examiners of Plumbing, Heating and Fire Sprinkler Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 719796 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- According to the California Contractors State License Board, 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 Bahnson Environmental Specialties LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 124293 |
| Status | Inactive |
| State | Alaska |
| Type | Construction Contractors |
| Business Type | Ltd Liability |
- According to the Alaska Division of Corporations, Business and Professional Licensing, 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 Bahnson Environmental Specialties LLC at the Alaska Division of Corporations, Business and Professional Licensing.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Insured
| Insurer | Continental Casualty Company |
| Insured up to | $14,000,000 |
Bonded
| Bonded Agent | Travelers Casualty & Surety Company Of America |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | American Casualty Company Of Reading Pa |
12
Permits
- Building permit records show that Bahnson Environmental Specialties LLC has worked on 12 permitted projects.
Bahnson Environmental Specialties LLC Employees
AS
Allen Wayne Sawyer
Officer
AB
Andrew Wayne Backus
Ceo / President
AT
Anthony Triano
Manager
AT
Anthony Triano
Manager
BL
Bahnson Environmental Specialties, Llc
Owner
BB
Benson Kerry Baker
Rme
MH
Martin Gerhart Hovland
Rmo
SF
Steven Wayne Ferguson
Ceo / President
TS
Tony Smith
WS
William Anthony Smith
Ceo / President
WG
William Charles Grettenberger
Rme