When you decide to invest in replacement windows in Bothell, WA you have several important decisions to make. One of the most important may very well be the frame material on your new windows. This will often dictate the form, efficiency, strength, and aesthetic of replacement windows. Many window experts would argue that fiberglass windows are some of the best on the market. Here are just a few of the advantages you can expect when you choose fiberglass window frames:


Compared to other popular window materials, fiberglass has a superior strength to weight ratio. This means fiberglass windows frames can hold the weight of large panes of glass. That way you can get more natural light and a larger view on a thinner window frame.


Fiberglass can hold up even in more extreme weather conditions. These frames are impervious to saltwater, colder temperatures, UV rays, and severe storms. They will not warp, rust, rot, or corrode like some other window materials. In fact, you can expect top quality fiberglass windows to last for 30 years or more.


The strength and durability of these windows combine to make them some of the most secure frames on the market. And by distributing the impact load, fiberglass is less likely to sustain surface damage from debris or projectiles. Combine the stronger frames with updated glazing technology and you can boost the safety and security of windows in your home.

Thermal Performance

Fiberglass windows are often hollowed out with either foam insulation or wood at the core. This means they have a low heat conductivity. These products can help reduce the strain on your HVAC system and lower your energy expenses. But that isn’t all. Fiberglass also has a low thermal expansion and contraction rate. This prolongs the life of the seals on these windows, maximizing their performance long-term because they are so stable.

Noise Resistance

Noise pollution may not be a top concern, but it can make a world a difference if you live on a busy street or close to a public park. Just like fiberglass windows cut down on heat transfer, these windows can also limit the amount of outside noise entering your home.

Easy Maintenance

One thing a lot of homeowners look for in replacement windows is easy maintenance. Fiberglass windows are particularly easy to clean and maintain. You can paint and refinish your windows every few years. Or you can get a factory finish that will not fade or chip over time. All that is required to keep them looking like new is a little water and mild detergent.


Many homeowners choose fiberglass windows because there are so many options to choose from. You can get window frames that look like wood with a natural finish you can paint to match the aesthetic of your home. Or you can choose from a number of different finishes meant to match the style and color of almost any home.

If you are interested in learning more about fiberglass replacement windows in Bothell, WA contact Signature Window & Door Replacement. Our experts can explain in more detail the pros and cons of these windows. They will also help you decide if they are the right products for your home. Call us at (253) 887-7792 or check out our showroom at 22613 68th Ave. S. Kent, WA 98032.