Old windows look worn, hinder curb appeal, dim the amount of natural light in your home, and allow drafty air to invade. Windows are an important safety feature in your home, and when they’re broken or their locking mechanism fails, your home’s protection could be compromised.
At Approved Contractor, we understand the frustration homeowners experience with faulty windows, and how apprehensive it can feel to hire a contractor. That’s why we’ve created a reliable process that’s helped over 3,000 homeowners get the beautiful, long-lasting home exterior they desire.
Get fiberglass replacement windows for:
Overview of Fiberglass
Replacement Windows
Home window replacement options include wood, vinyl, and fiberglass. Wood windows require high. Vinyl windows can sometimes inhibit views of the outdoors. But fiberglass replacement windows offer you durability, long-lasting performance, great views, and low maintenance.
Get durable fiberglass replacement windows.
What Are the Benefits of
Fiberglass Windows?
- Durable — Fiberglass is an extremely heavy-duty material (think hard hats and canoes). It is 10 times stronger than vinyl, and easily stands up to the elements year-round.
- Customizable — Reflect your home’s architecture, character, and style with fiberglass replacement windows. Select hardware that meet your needs for both style and function.
- Streamline — The strength of fiberglass windows permits frames and sashes to be narrower, allowing for greater design options and generous views of the outdoors.
- Low maintenance — The ease with which you can wipe off dirt from fiberglass windows makes them simple to clean, and keeps them looking new for years.
- Energy-efficient — Summer’s heat and winter’s cold don’t cause fiberglass windows to flex or sag like other materials. Fiberglass energy-efficient windows save you on utilities bills year-round.
- Noise reducing — Window replacements can help decrease street noise, heavy equipment noise, and even aircraft noise from invading your home.
- Safe — Intruders often choose windows as an entry point into a home. Fiberglass window frames create a reliable layer of protection against break-ins.
Based on over 800+ reviews

Trusted Replacement Window
Brands We Offer to the Southern California Area
We offer the industry’s best replacement windows:
- Marvin
- Milgard
- Pella
- Andersen
- Jeld-Wen
Why Choose Approved Contractor for Home Window Replacement
Superior Customer Service — We genuinely listen to and address your concerns
No Pushy Salesmen — We simply guide and recommend
Premium Products — Marvin, Milgard, Pella, Andersen, Jeld-Wen
Expert Installation — Rather than doing everything—we specialize in the services we offer
Sneak Peek — Get a look at what the end result will look like (before we begin your home upgrade) with our 2D rendering of your house when it is finished.