TSW Michigan Replacement Windows, Doors, Siding & more.
Fiberglass Windows
THERMAL SHIELD is a family owned Michigan business since 1966, and we have conducted our business with a great sense of pride and professionalism.
Virtually Any Design, Style, Size, Shape And More. Pella Can Build It Just For You.
What can fiberglass do for you?
It will complement your home with the quality look of a painted window and can increase energy efficiency and comfort. Plus, the interior and exterior of your windows and patio doors arrive with a durable powder-coat paint finish that will last for years.
Performance highlights
Increase your comfort inside, no matter the weather outside. If your home is near the shore or a beach, high on a mountainside or somewhere in between, our fiberglass windows and patio doors are strong and stable enough to endure extreme heat or cold, damaging UV rays and sea air.
Fiberglass is the strongest, most durable material available for windows and patio doors. They won’t warp in the heat or become brittle in the cold.
Garden Windows for your Michigan home.
Smart Home Technology
Ask about adding Insynctive technology to our Pella products for more monitoring and control.
Security sensors. Built-in or universal security sensors for windows, patio doors, entry doors and garage doors.
Between-the-glass blinds and shades. Available motorized with Insynctive technology.
Pella Limited Lifetime Warranty
Backed by one of the best warranties in the business.
The Pella Limited Lifetime Warranty is nonprorated, meaning the coverages within the defined warranty periods do not decrease over time.
Michigan Replacement Patio Doors
Fiberglass Patio Doors
Pella® Impervia® fiberglass products are made to stand up and stand out with exceptional energy efficiency and low-maintenance features — all with the quality look of a painted window.
Exceptional security
Pella Impervia sliding patio doors with multipoint lock hardware have been awarded an ASTM Grade 40 security rating — the highest in the industry.
Better draft protection
Pella’s unique design puts the sliding panel on the outside. So when the wind blows against it, it creates a tighter seal. Plus, the screen is protected from the elements.
Easy to use
The roller system on the sliding panel helps ensure easy openings and closings.
Glass at a glance
Pella’s InsulShield® Low-E Glass Collection1 features our most innovative and energy-saving choices, designed for your specific needs.