Choosing Between
Vinyl and Fiberglass Windows

The window material you choose will have a significant impact on the appearance of your home, as well as the performance and overall cost of your project. At Gilkey, we manufacture only fiberglass and vinyl windows. We specifically prefer them over aluminum, wood, wood/clad or wood/vinyl composites. Take the necessary time and ask questions. We have the experience and knowledge to help you make the best decision for your home.

Vinyl Windows

Vinyl is one of the most widely used framing materials for a variety of reasons. It is essentially maintenance free, warm to the touch and economical. Vinyl however, has some inherent drawbacks if not engineered properly. Some vinyl windows are designed to last just a few years while others can last a lifetime. Gilkey’s System Boreal Vinyl windows are designed with multiple air chambers and internal walls which dramatically increase fusion welding surface area and provide exceptional sound abatement and impact resistance. This “honeycomb” design ultimately lowers the u-value (heat loss) better than traditional foam filling. Gilkey reinforces the sash with fiberglass which increases rigidity and long term durability.

Fiberglass Windows

Fiberglass is now considered the most advanced material used in the window and door industry today. It does not need to be thick or bulky to provide strength and stability so it’s ideal for windows and doors. Thinner frames mean more natural daylight. Fiberglass frames resist extreme weathering and will keep their shape no matter what temperature. Additionally, a Fiberglass frame and its glass, will have extremely low expansion/contraction so they work in harmony with each other reducing stress on seals and weather-stripping eliminating drafts. Fiberglass doesn’t conduct heat or cold so it’s an excellent insulator. Fiberglass also isn’t affected by temperature so dark colors that can absorb heat, will not warp or sag when exposed to the sun. Since Fiberglass is essentially made from glass fibers, it is recyclable and considered extremely “green”.

Window Styles