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Therma-Tru Doors Collections

It was a bold innovation for the home-building market when Therma-Tru introduced an entryway door that looked as beautiful as natural wood and was more durable. Therma-Tru has been revolutionizing the door industry for years now—at GIANT, we are proud to install Therma-Tru doors, a brand preferred by our customers and the door installation professionals on our team.

Contact us today; we will be happy to work through all the options with you. We love what we do, and you’ll see the difference that makes at each step of the process. Home siding is our passion; let’s make your home beautiful together!

door replacement westchester ny

Fiber-Classic® Collections

Fiber-Classic® Collections

Popular Styles for Everyone

Choose Mahogany or Oak wood-grain for the perfect fiberglass door to fit a variety of home styles at an excellent value.


Profiles™ & Traditions

Profiles™ & Traditions

Affordable Style

Coupling distinctive styling with affordability, Therma-Tru steel doors offer versatile front front, patio and house-to-garage options.



Durable, Sleek, Paintable

A wide range of door styles, panel designs, sizes and options in a smooth texture to meet your design style.


Sidelites & Transoms

Sidelites & Transoms

Complete your entryway with sidelites or a transom.

Sidelites and transoms can elevate your entryway to the next level.

Components & Accessories

Components & Accessories

Engineered to work together.

A Therma-Tru door with genuine Therma-Tru components is a complete door system, offering uncompromising quality inside and out.

Pulse Collection

Pulse Collection

Contemporary Styles

Clean lines and crisp angles deliver sleek, modern designs and vintage style in doors that perform to Therma-Tru standards.



Doors Replacement Westchester NY

Choosing a door that will protect your family and compliment the design of your home is no easy task. Therma-Tru® doors allow homeowners the freedom to design their unique home entrance with the confidence that it will perform for years to come and look good while doing it.

Whether it’s Classic or Contemporary – or somewhere in between – Therma-Tru offers Westchester NY homeowners access to a wide selection of door designs and styles to complement the architecture of any home and a homeowner’s sense of style.

Choosing a durable door is important.

Kids, pets, and friends come and go all day long. This means that when it comes to choosing a new door, reliability and durability matter.

The GIANT DIFFERENCE… we take the time to get to know our customers…to customize projects with details, siding highlights, and little wows that make your home uniquely yours!

About Our Team

Proudly Serving for 3-Generations

We are a Westchester County-based Roofing CompanyWindow Installer and Siding Installation Contractor, proudly serving homeowners throughout Westchester NY and Fairfield County CT for 3-Generations!

Unlike other Westchester contractors that offer window installation, roofing, and siding, at GIANT Siding and Windows, all our teams do is roofing, siding, and windows. We are true experts in our craft.


  • Treat every customer like family!
  • Never use a salesperson!
  • Always provide reliable, dependable service!
  • Exceed each customer’s expectation!
  • Go green! We are ecologically responsible for our planet and community!


GIANT Siding and Windows is a locally owned and operated family business. From our first meeting on, you will always deal directly with me, Perry Hayes, owner/operator, and Westchester County resident.