WINDOWS BUILT FLORIDA TOUGH

Welcome to Windows by GNA


Windows by GNA sells and installs windows manufactured by Custom Window Systems (CWS). CWS specializes in high quality windows and doors, specifically designed to withstand the hurricane impact zones in Florida. With an eye towards the coastal market, CWS’s mission values innovation, creating products that meet and exceed coastal requirements, while introducing the latest advancements in window and door engineering like energy efficient windows. CWS products are made in Florida, for Florida, and promise to look and perform better than your old windows and doors.

OUR PRODUCTS


When the envelope is breached through a broken window or door, wind entering the building will cause an increase in pressure that could lift the roof and bow the walls outward. Every CWS product is built with the understanding that maintaining the envelope of the building is vital to maintaining the integrity of that building’s structure. Our designs are made specifically for the coastal market, with stainless steel, salt resistant materials, all built to withstand the elements outside.

WINDOWS

CWS windows are impact-resistant and non-impact vinyl or aluminum windows that encompass a wide variety of styles and performance. Our windows are scientifically researched, engineered and tested to meet and exceed increasingly stringent coastal regulations.

DOORS

CWS features sliding glass patio and French style hinged doors in vinyl and aluminum framed contemporary styles that feature impact-resistant and non-impact configurations. Our doors combine high performance with superior craftsmanship and aesthetic appeal.

Why Choose Us?


We are a family owned and operated full-service renovation company with over 15 years experience working directly with homeowners to ensure they are completely satisfied with their renovation project. We are fully licensed and insured, use background checks and drug screening on all staff, and provide training at our in-house testing facility, ensuring we add only the most qualified installers to our team.

Co-founders Greg and David Norman, second generation contractors and tradesmen, work full-time overseeing the operations and live right in Pinellas County, just minutes from our 20,000 square foot Largo renovation facility.

Our family stands ready to help and guide you through every step of your replacement window and door project, including all permitting, selections, ordering, installations and any troubleshooting needed along the way. Rest easy knowing we have your back with our Comprehensive Limited Lifetime Warranty on all parts and labor for as long as you own your home.

Peace of Mind

CWS has been manufacturing high-quality windows designed for Florida’s hurricane-impact zones and other coastal markets since 1986. We offer a lifetime warranty on all replacement windows and doors, including parts and labor.

Design Experience

After fifteen years in business and thousands of successful renovations, you can be confident that our expertise will result in you getting the renovation of your dreams. You’re ensured the best materials, like salt-resistant and stainless steel components. With GNA’s expert installation team, we know what you need to make your renovation a success from beginning to end.

Convenient

We handle all aspects of your remodel with everything under one roof, parts and labor included.

Professional

We partner with the best to ensure only reputable materials are used for your remodel. We stand behind every part of your new windows with a lifetime warranty on all replacement windows and doors.

Peace of Mind

CWS has been manufacturing high-quality windows designed for Florida’s hurricane-impact zones and other coastal markets since 1986. We offer a lifetime warranty on all replacement windows and doors, including parts and labor.

Design Experience

After fifteen years in business and thousands of successful renovations, you can be confident that our expertise will result in you getting the renovation of your dreams. You’re ensured the best materials, like salt-resistant and stainless steel components. With GNA’s expert installation team, we know what you need to make your renovation a success from beginning to end.

Convenient

We handle all aspects of your remodel with everything under one roof, parts and labor included.

Professional

We partner with the best to ensure only reputable materials are used for your remodel. We stand behind every part of your new windows with a lifetime warranty on all replacement windows and doors.

Schedule Your Free In-Home Estimate!

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