
Strong, stable fiberglass frames that resist expansion, take paint well and suit sun, heat and big windows.
Fiberglass frames are strong and stable. They expand and contract very little with temperature, so they keep their shape and their seals through hot summers and cold snaps. They can be painted, and they allow slim sightlines and large sizes. Homeowners in Nashville choose fiberglass for homes with big windows, strong sun or a desire for a long-lasting frame that holds a darker color well.
We discuss how fiberglass compares with vinyl and wood: it costs more than most vinyl, needs less upkeep than wood and handles heat very well. We show frame samples, finishes and colors and explain how factory finishes and field painting differ. We measure each opening, order the windows and install them with careful flashing and sealing. We also advise on grids and glass, so the finished window looks right and performs well.
Fiberglass moves very little with temperature, which helps seals last and sashes keep their fit in hot sun.
The material is strong enough for large sizes and thin frames, which means more glass and a cleaner look.
Fiberglass can take paint, so you can change color later, and factory finishes are available.
It often costs more than vinyl, and in return gives a durable frame that needs little attention.
Drag the handle to compare.

BeforeAfterLittle expansion in heat.
Large sizes, slim frames.
Color can change later.
Factory options.
Dark colors hold up.
Flashed and sealed.
Every topic has its own page with what to expect and how we approach it.
Topic guideWindow Energy RatingsU-factor, solar heat gain, visible transmittance and air leakage explained in plain language, with notes on how to…Learn more
Topic guideWindow Grids and ColorsGrid patterns, between-glass grids, simulated divided lites, frame colors and finishes compared for style and upkeep.Learn more
Top brandGuardianA glass manufacturer whose products include coated and low-E glass used by window makers and building projects.Learn more Answer a few questions about your home, rooms, ventilation and view to see which window styles usually fit best.
You tell us what you want or what the windows are doing, and we set an estimate visit that fits your day.
We measure each opening, check the frames, sills and trim for rot and note options for style, glass and installation method.
You get a plain written scope with the window models, glass packages, trim and schedule, and you approve it before anything is ordered.
The windows are ordered or made to your sizes, inspected when they arrive and the work areas are protected.
We remove the old windows, set the new ones plumb and level, flash, insulate, seal and trim each opening.
We clean up, haul away the old windows if you asked, walk you through the finished work and explain how to care for them.
It is stronger and more stable, and it usually costs more. Which is better depends on your priorities and budget.
Yes, with the right preparation and paint. Many come with durable factory finishes.
No. They do not rot, rust or swell with moisture.
They can be, especially with low-E, gas-filled glass and a good installation.
Fiberglass frames are known for long life. Hardware and glass seals can still wear and can be replaced.
Vinyl Replacement WindowsLow-maintenance vinyl windows with welded frames, good insulation and a wide range of styles and colors.Explore
Composite Replacement WindowsEngineered composite frames that combine wood fibers with polymers for strength, stability and low upkeep.Explore
Energy-Efficient WindowsWindows chosen for comfort and efficiency, with low-E glass, gas fill and tight installation explained plainly.Explore
Window Colors and FinishesInterior and exterior colors, stains and finishes chosen to suit your siding, brick, trim and style.Explore Tell us about your project and we will call you back to set up a visit.
Or call (615) 357-7797 to talk now.