» CertainTeed Corporation
   Offer a variety of windows including double hungs, geometric casements, garden windows and French rail sliding patio doors.
   http://www.insulate.com/

» Columbia Glass & Window Company
   Manufacturer of aluminum and vinyl windows for both new construction and replacement applications.
   http://www.columbiawindows.com

» Compact Integrate Pte Ltd
   Manufactures uPVC windows and doors, aluminium barriers, fencing systems.
   http://www.integrate.com.sg/

» Eurobuilt, Inc.
   Windows and doors made of extruded pvc.
   http://www.eurobuilt.com/

» Fiberglass Door Solutions
   Fiberglass door systems.
   http://www.fibrdor.com/

» Gardinia Windows
   Residential PVC-U windows, doors and conservatories. Profile, illustrated product descriptions, news and location map. [Requires Flash]
   http://www.gardiniawindows.co.uk/

» John Fredericks Plastics Co.
   UK Based manufacturer of double glazed windows. Country wide coverage.
   http://www.johnfredericksplastics.co.uk

» Mersey Replacement Windows
   Manufactures and installs uPVC windows and doors. Profile and location map.
   http://www.merseyreplacementwindows.co.uk/

» North Star Manufacturing
   Extruder and fabricator of vinyl windows and doors. Based in St. Thomas, Ontario, Canada.
   http://www.northstarwindows.com/

» ORAN Windows
   Manufacturer of quality PVC (vinyl) windows.
   http://www.pvcwindows.com

» Pease Industries
   The appearance and stainability of wood - the durability and affordabilty of fiberglass.
   http://www.peasedoors.com/

» Phoenix Door Panels
   Door panels, toughened glass, silicon sealed, bespoke glazing designs, mahogany, woodgrain, light oak finishes.
   http://www.phoenixdoorpanels.co.uk/

» Plastiques Industriels
   PVC extruder for doors and windows. A member of the Royal Technologies Group.
   http://plastic-ind.com

» Progressive Windows Inc.
   Designs and manufactures vinyl windows and doors, specializing in tilt and slide designs. Photos and descriptions of product lines and dealer information are provided. Based in Fairview, Oklahoma.
   http://www.tiltandturnwindows.com/

» Renewal by Anderson of Northern Ohio
   Specializing in replacement windows and doors.
   http://www.windowpro.net/

» Sundoor Manufacturing Pvt Ltd.
   Manufacturer of doors, door frames, and window shutters. Based in Vadodara, Gujarat, India. Technical specifications, photo gallery, and contact details.
   http://sundoorindia.com

» Thai Fiberglass Doors Company
   Manufactures interior and exterior fiberglass doors.
   http://www.strongfiber.com/

» Therma-Tru Doors
   Designs and produces energy efficient exterior doors made of advanced composite materials. Based in Maumee, Ohio.
   http://www.thermatru.com/

» Thermal Industries, Inc.
   Windows manufacturer offering vinyl windows including replacement, stained glass, bow, bay, casement, garden and double hung windows.
   http://www.thermalindustries.com/vinyl_windows_doors.html

» Unlimited, Inc.
   Vinyl windows (double-hung, single-hung, basement windows, replacement windows, casements, awnings, and bays and bows)
   http://www.windowsbyunlimited.com/

» Vinylbilt Shutter Systems Inc.
   Manufacturer of custom vinyl interior designer shutters , new home and custom replacement windows in casement, double-hung, slider and architectural styles and sliding and inswing patio doors.
   http://www.vinylbilt.com/