About

Whether it is commercial & industrial, fabricated or metal building insulation, we have the insulation products to meet your needs. Our locations around the country provide you with easy access and delivery.


With locations throughout the country, our Commercial and Industrial Insulation division offers a complete line of commercial and industrial insulation products from a variety of manufacturers.


The Metal Building Insulation division of Bay Insulation ranks as the largest producer and distributor of a complete line of MBI materials and accessories. In addition to this, we are also the largest producer of custom-laminated metal building blanket insulation.


Our Fabricated Insulation division supplies a diverse range of OEM conformed shapes and fabricated insulation products.


The Expi-Door® Systems Inc. is a one-stop solution to architectural needs. Our product experts have specified a complementary array of products designed to meet the needs of the metal buildings industry. The Expi-Door® System is delivered completely assembled to the jobsite with everything a customer needs including the door, frame, hardware, entry lockset, accessories and sub-frame assembly. Call Expi-Door® today and open the door to new opportunities.


AMI Fireplace Company Inc. has only the finest gas and woodburning fireplaces from leaders such as Heat-N-Glo and Heatilator®. We stock a complete line of fireplace accessories and service parts, and also provide professional installation.


FrontLine® Bldg. Products is a leading manufacturer of aluminum cladding for entry door frames and side lites, all-aluminum garage door frames and aluminum clad transom windows.


Overhead Door is a leading distributor of residential and commercial steel overhead doors, door openers, jamb seals and overhead door parts.


Backer Rod Mfg. Inc. is one of the largest manufacturers of backer rod materials in the world. Backer Rod offers three distinct products for use in construction joints: Denver Foam®, Mile High Foam™ and Ultra Block®.


Bay Converting Inc. specializes in Private Label Fabric Softener coating and converting. BCI provides Fabric Softener Sheets to some of the major retail outlets in the country under various names and labels. BCI has the ability to provide turnkey products in all popular package counts, multi packs, bonus packs, as well as floor and shelf displayers.


Bay Building Supplies Inc. has been serving its customers as a distributor for over 40 years. Our mission is to increase the profitability of our customer's insulation sales by offering a wide selection of insulation products and masonry and concrete supplies with programs designed to suit their individual needs.