Level 4 Enclosure Integrity Testers

These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 3 certified technician who has been certified to conduct the NFPA blower door test procedure.

Level 4 testers are certified on ISO testing and advanced pressure venting tests, both using complicated multi-point techniques.

There are no companies with Level 4 testers in your area.

Level 3 Enclosure Integrity Testers

These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 3 certified technician who has been certified to conduct the NFPA blower door test procedure.

Level 3 testers are certified to perform multiple blower tests for large enclosures, NFPA lower leak measurement using ceiling neutralization, extended discharge systems and sub-floor only testing.

Greer's Supply Company Inc Roanoke , VA   Phone: Fax:

N64

James Hale, Level 3 Ian Smith, Level 3

Level 2 Enclosure Integrity Testers

These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 2 certified technician who has been certified to conduct the NFPA blower door test procedure.

Level 2 testers are certified on the NFPA single blower door fan tests & field calibration tests.

Fire-X Corporation Richmond , VA   Phone: Fax:	870,Q56	Mike Cathey, Level 2 Bill (William) Agnese, Level 2
SimplexGrinnell, Richmond VA 8555 Magellan Parkway Suite 1000 Richmond, VA  23227 Phone: (804)727-3890 Fax: (804)261-0014	Q56	Brian Welteroth, Level 2
VSC Fire & Security 10343-B Kings Acres Road Ashland , VA  23005 Phone: (800)695-9596 Fax: (804)412-1331	922	Jonathan W Hodge, Level 2 Steven M Korslund, Level 2 Mark Burgwin, Level 2

Level One Certified Techniciains

These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 2 certified technician who has been certified to witness the NFPA blower door test procedure.

Level 1 testers are trained in enclosure theory & design, and are certified to witness but but not perform the NFPA blower door test.

There are no companies with Level 1 testers in your area.

Companies that own Retrotec Equipment but don't have registered technicians.

Companies listed below own Retrotec equipment, but have not been certified by Retrotec to perform the NFPA blower door test.

Battelle Stafford VA   Phone: Fax:	Q4E,R31
Fire Protection Equipment Co Richmond VA   Phone: Fax:	E53
Fire Solutions Inc Ashland VA   Phone: Fax:	Q56
Hiller Systems Inc 833 Principal Lane Chesapeake VA  23320-3638 Phone: (757)438-5944 Fax: (757)549-1083	E53
Hudson Payne Electronics Madison Heights VA   Phone: Fax:	870,Q64
The Home Energy Detective Manassas VA   Phone: Fax:	Q56
Virginia Fire Protection - Ashland 9424-J Atlee Commerce Blvd. Ashland, VA  23005 Phone: (800)695-9596 Fax: (804)412-1331