Specialty Windows
When traditional window styles don’t fit your plan, turn to Renewal by Andersen® of Knoxville for access to a full selection of specialty windows in Knoxville. Whether you have a unique space in which you’d like to install a window or you’d just like to break away from the ordinary, Renewal by Andersen will find a custom fit specialty window that fits your needs.
Here at Renewal by Andersen of Knoxville, our design consultants have deep experience working with local homeowners in Tennessee to select specialty replacement windows. We’ll take custom measurements, give you an array of options, and help you to choose a specialty window that will look good and function well.
Each specialty window we offer utilizes the same advanced materials that make our traditional styles durable, beautiful, and energy efficient. This includes Renewal by Andersen’s exclusive Fibrex® material, which offers the strength and insulating value of wood with the low maintenance features of vinyl.
Renewal by Andersen has replaced more than two million windows. You can count on us to do the job right with a respectful approach and professionalism you’d expect from an industry leader. We don’t take windows off of some shelf on a warehouse and try to fit them to your home. We custom measure and fit each window we offer to exact specifications, including our specialty windows.
Like all of our windows, our specialty windows are backed by one of the strongest window and door replacement limited warranties you will ever find.* As your exclusive local representative of Renewal by Andersen, we are the only window company that can offer these warranties, so don’t fall prey to other companies that claim they can.
Specialty windows are a great way to create unique, eye-catching features in your home. To see our full selection of specialty windows and to discuss your options, call Renewal by Andersen of Knoxville or fill out our online request an estimate form to schedule your free, no obligation consultation on replacement windows in Knoxville.
Speciality windows are available in thirteen basic styles:
Chord Window
Circle Top™ Window
Triangle Window
Peak Pentagon Window
Circle Window
SpringlineT Window
Pentagon Window
Trapezoid Window
Equal Leg Arch Window
Quarter Circle Window
Octagon Window
Right Triangle Window
Hexagon Window
The Renewal by Andersen replacement window color palette is specially selected to match or complement the colors of your home. You can choose the same color for both the interior and exterior, or select any exterior color with a stainable wood, white or canvas interior. Our colors will not flake, rust, blister, peel, crack, pit or corrode, making troublesome maintenance a thing of the past. See the limited warranty for details.
- Exterior Colors
White
Canvas
Sandtone
Terratone
Cocoa-Bean
Black
Dark Bronze
Forest Green
- Interior Colors
White
Canvas
Sandtone
Terratone
Pine
Oak
Maple
Please see the Renewal by Andersen color choice card for exact color samples.

- Up to 56% more energy-efficient in summer and 45% more efficient in winter compared to ordinary dual-pane glass.* Depending on where you live, that can cut your energy bills up to 25%**.
- Innovative coating reduces water spots and makes cleaning easier***
- Blocks 83% of UV rays that can fade fabric and damage furniture
- Significantly reduces the level of sound coming into your home
*Values are based on comparison to U-Factors and SHGCs for clear glass non-metal frame default values from the 2006 International Energy Conservation Code (IECC).
**A study of identical homes comparing Low-E4® glass to ordinary dual-pane glass showed a 25% savings geographically on cooling bills, 10% on heating. Savings may vary geographically.
***Exterior glass only. When activated by sunlight.
Glass Options
Glass Pattern
Choose from obscure, reed, cascade, or fern glass patterns to provide beauty while still allowing light to enter your home.
High-Performance™
Low-E4® Sun Glass
Choose additional tint to reduce the amount of solar heat gain in your home to help keep your home cooler in summer.
Tempered
A type of safety glass that is heat-treated to be at least four times stronger than other regular glass.
Renewal by Andersen offers a broad range of grille patterns and finishes to enhance the look of your home. Match or change the look with grilles configured to provide originality or authenticity. Our high-profile grilles feature prominently defined profiles that enhance traditional window design. All of our grilles are designed for long-lasting, low-maintenance performance.*
* See the Renewal by Andersen 20/2/10 year limited warranty.
- Grille Patterns
-
Colonial
You choose the number of squares for each sash. -
Prairie
This pattern always includes two vertical and two horizontal bars per sash. -
Farmhouse
A classic effect with two vertical bars meeting a horizontal rail or bar at the center of the window -
Colonial
You choose the number of squares for each sash.
There are many additional grille options available. Please see your local showroom for more information.
Grille Types
-
Interior wood grilles
Hardwood grilles snap into clips on sash interior and remove easily for glass cleaning. Contemporary or classic profiles in two widths. -
Grilles-between-the-glass
Pre-finished aluminum grilles permanently installed to provide the quick glass cleaning of a smooth surface. Narrow or wide width. -
Full divided light grilles
A visual replication of true divided glass, with a permanently applied exterior Fibrex® material grille, and aluminum space® between the glass, and a removable or permanently applied wood interior grille.
Grille Profiles
Insect screens are included standard with every operable window from Renewal by Andersen. Each is lightweight and designed to be easily removed from the inside of your home for easy cleaning. All insect screens are constructed with an aluminum frame and your choice of glass fiber (our standard), aluminum, or our innovative TruScene® insect screens (see below). Half insect screens are available on double-hung windows.

High Transparency Insect Screens
With TruScene insect screens, the view from your window stays as clear as all outdoors. With over 50% more clarity than our standard insect screens, it’s virtually invisible and totally innovative. TruScene insect screens are made with a micro-fine stainless steel mesh that’s one-third the diameter of standard screen wire to let more fresh air and sunlight in, while keeping most of even the smallest insects out. TruScene insect screens are like nothing you’ve ever seen!
- Nearly invisible
- The strength of stainless steel
- Protection against some of the smallest insects
- Superior ventilation
- Lets more light into your home
