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Glass Master Machines and Replacement Parts

SG-220 Grooving Machines are now available from CertainTeed Machine Works, as are Tool Holders, Blades and Blade Sets supporting the SG-220.  
Hand tools, accessory items, and a limited number of blades used on other Glass Master machines are also available.   

Please contact us for all of your duct board grooving needs.   

We look forward to hearing from you.


CertainTeed Machine Works Equipment

CertainTeed Machine Works has been supporting the insulation contractor community for 80 years. We manufacture high quality, professional grade equipment, supported by outstanding customer service. Our complete line of insulation blowing machines, fireproofing machines, insulation removal vacuums and spray foam equipment may be found by visiting our website,

CertainTeed Machine Works
101 Hatfield Road
Winter Haven, FL 33880

Phone: 863-294-3206
FAX: 863-294-6771
Toll Free: 800-874-9135
Toll Free: 800-237-7841


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