About Certified Window Co.

Certified Window Co. offers quality vinyl replacement windows for homeowners and contractors in Fairfax, VA and the surrounding areas.

We are based in Fairfax County Virginia and serve Northern Virginia including Arlington County, Montgomery County, Prince Georges County and Howard County. We offer new and replacement double and triple pane vinyl windows that are energy efficient.

We have been in business for over 38 years and we are family owned.

About our windows

We proudly offer Alside quality vinyl replacement windows. For more than 65 years, Alside has provided exceptional building products for homes and businesses throughout the country. Their commitment to innovative design, advanced technology, superior craftsmanship and outstanding customer service has defined their legacy as a true industry leader.

Alside has been in the industry for decades and has a reputation for producing durable and energy-efficient windows. Their vinyl windows come in a variety of styles and options to suit different preferences and architectural designs.

For more than 65 years, Alside has provided exceptional building products for homes and businesses throughout the country. Their commitment to innovative design, advanced technology, superior craftsmanship and outstanding customer service has defined their legacy as a true industry leader.

James Ragusa - Owner of Certified Window Co.

Replacing your windows with quality vinyl replacement windows can offer several benefits for homeowners and contractors in Fairfax, VA.

Here are some compelling reasons to consider making the switch:

Energy Efficiency: Quality vinyl replacement windows are designed with advanced insulation properties that can significantly improve the energy efficiency of your home. They help to better regulate indoor temperatures, reduce drafts, and minimize heat transfer, leading to lower heating and cooling costs.

Cost Savings: As a result of improved energy efficiency, homeowners can experience noticeable savings on their energy bills over time. The initial investment in quality vinyl windows can pay off through long-term energy cost reductions.

Enhanced Comfort: Vinyl replacement windows help create a more comfortable living environment by reducing cold drafts in the winter and heat infiltration in the summer. You'll enjoy consistent indoor temperatures and a more pleasant atmosphere.

Noise Reduction: Quality vinyl windows often come with sound insulation features that help reduce external noise, making your home quieter and more peaceful, especially if you live in a busy or noisy area.

Low Maintenance: Vinyl windows are virtually maintenance-free. Unlike wood windows that require regular painting and sealing, vinyl windows resist fading, peeling, and rotting, which saves you time and money on upkeep.

Durability: Vinyl replacement windows are built to withstand the elements, including harsh weather conditions such as rain, snow, and UV exposure. They have a long lifespan and won't warp, crack, or corrode like some other materials.

Aesthetics: Vinyl windows come in a wide range of styles, colors, and finishes to match your home's architectural design and enhance its curb appeal. You can choose from various options to achieve the desired look.

Value Addition: Upgrading to quality vinyl replacement windows can increase the resale value of your home. Prospective buyers often appreciate modern, energy-efficient windows, which can make your property more attractive on the market.

UV Protection: Many vinyl windows are equipped with UV-resistant coatings that help protect your furnishings, artwork, and flooring from fading and damage caused by the sun's rays.

Environmental Impact: Vinyl windows are recyclable and contribute to sustainability efforts. By reducing your energy consumption and using recyclable materials, you can lessen your carbon footprint.

Easy Installation: Contractors in Fairfax, VA, are experienced in installing vinyl replacement windows efficiently and effectively, minimizing disruption to your daily routine.