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.

AVCO Fire Technologies Inc. 100 Hwy 9 Hayden , AL  35079 Phone: (205)647-2431 Fax: (205)590-9796	N64,Q64xDM-2	Allen Buckner, Level 3 Valerie Buckner, Level 3
S & S Sprinkler Co., LLC Mobile , AL  36617 Phone: (251)473-6000 Fax: (251)478-6830	Q5E,Q5Ex2	Frank LeDoux, Level 2 Justin Merrick, Level 2 John Pearce, Level 3 Zachary T. Normandin, Level 2

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.

Amerex Corporation 7595 Gadsden Highway PO Box 81 Trussville , AL  35173 Phone: (205)655-3271 Fax: (205)655-0976	Q56x2,Q56	Derek Wester, Level 2 Jim Murphy, Level 2 Tina Nelissen, Level 2 Paul Curry, Level 2
Fire Pro LLC Madison , AL   Phone: Fax:	Q5E	Colin Phillips, Level 2
Hiller Systems, Inc. 3751 Joy Springs Drive Mobile , AL  36693 Phone: (251)661-1275 Fax: (251)666-3062	Q56	Andrew Overstreet, Level 2 Daryl Myers, Level 2
International Fire Protection 2400 First Ave South Irondale, AL  35210 Phone: (205)956-5081 Fax: (205)956-7248	E43C,R43	Don Basner, Level 2
Joiner Fire Sprinkler Birmingham , AL   Phone: Fax:	E53	Tony Thomas, 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.

Fyr Fyter Sales & Service 608 South Broad St Mobile AL  36603 Phone: (334)432-1625 Fax: (251)431-0717	970F,60 gauge,970
Ram-Tool and Supply 541 Oliver Road Montgomery AL  36117 Phone: Fax:	Q46
Riley Heating & Air Conditioning Phenix City AL   Phone: Fax:	Q56