Brennan Signature Series Single Hung Vinyl Windows

Brennan Signature Single Hung Windows

Single hung windows are an excellent choice for homeowners interested in quality and affordable vinyl windows. A simple yet elegant design featuring a contoured profile will have you feeling extra proud of your home's curb appeal. 

Our Signature Series windows offer value with style, safety, energy efficiency, and strong performance. Plus with superior quality glass, you'll enjoy year-round thermal protection. 

  • Metal reinforced meeting rail to enhance structural performance and to attach sash hardware
  • Tilt in sash for easy cleaning and maintenance
  • KidsSafe™ Hardware which provides you with safe, lead-free products for your home
  • All frame corners fusion welded to eliminate air and water penetration
  • Limited Lifetime Warranty

Windows Made in the USA

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  • Features
  • Colors
  • Grids & Glass
  • Performance
    • A 3-1/4" frame profile adds structural integrity and allows for better energy performance.
    • 7/8" insulated glass unit with double strength glass features the EnviroSeal nXt™ warm-edge glass spacer. This warm-edge no metal spacer keeps your energy costs low by keeping heat out during the summer and in during the winter. 
    • A roller tilt constant force balance system means you can count on your ventilating windows to open smoothly and quietly regardless of size, plus no maintenance concerns.
    • Raised contoured exterior profile adds dimension and style to a simply designed window.
    • The multi-chambered design of the frame and sash components with heavy wall thickness enhances the structural and thermal performance of the window.
    • Interlocks at the meeting rail are wide and deep and feature dual FinSil weatherstripping for improved thermal and structural ratings.
    • The sash and frame are entirely fusion welded to meet the strictest guidelines for structural needs.
    • A true slope sill design protects the integrity of the window even in extreme weather and driving rains.
    • The meeting rail is reinforced with metal to improve structural performance with hardware is attached.
    • Locking pivot shoe system for added structural integrity and protection.
    • Double wall interior leg with weatherstripping for improved seal.
    • Some styles have a tilt sash feature that makes it easy to clean the exterior side of the glass without having to step outside.

Surpassing Performance Standards

  • EnviroSeal nXt

    EnviroSeal nXt outperforms other single-seal and dual-seal spacers. Windows built with EnviroSeal nXt exhibit the lowest failure rates in the industry which is ideal with insulated glass units. Considered the glass spacer of the future, this warm-edge glass spacer is highly energy efficient. 

    Designed without metal, the spacer conducts less thermal energy thus improving the edge of glass temperature by as much as 16.6° F when compared to other spacer systems. By regulating the thermal transfer, windows with EnviroSeal nXt technology will keep your home comfortable year round. 


Interior and Exterior Colors

  • Creme White
  • Almond
Grids & Glass

Grid Options

  • Internal - Flat

Grid Patterns

  • Colonial
  • Prairie
  • Continuous Prairie

Glass Styles

  • Obscure
  • Rain

Superior Glass Performance

  • Cardinal LoÉ3-366 offers the ultimate experience in window performance glass. This glass delivers the perfect balance of solar heat control and high visibility. It also provides peak levels of year-round comfort and energy savings, making it the perfect glass regardless of which part of the country you live. With three layers of silver on the glass, you are certain to enjoy year-round thermal protection all day, every day.


Save with ENERGY STAR®

  • Installing ENERGY STAR® qualified windows lowers energy bills and saves you money over single-pane and even new double-paned, clear-glass windows. Windows with our high-performance glass package are ENERGY STAR® qualified for all regions.

Product Specs

Brand Brennan
Series Signature
Exterior Color White, Tan
Interior Color White, Tan
Composition PV Composite
Meeting Rail Reinforced with Superstructure, Continuous Interlocking
Uniform Sight Lines Yes
Locking System Brennan Signature Lock
Construction Type New Construction and Replacement
Custom Size Yes, Available in custom sizes to fit most projects, including replacement.
Sizing Measured in 1/8" increments
Minimum Width 16 1/8"
Maximum Width 54"
Minimum Height 21 1/4"
Maximum Height 96"
Stucco Key Yes
Frame Depth 3 1/4"
Flange Setback 1 1/8"
Energy Star Certification Yes
NFRC Ratings Yes
WDMA Hallmark Certification Yes
AAMA Certification Yes
Rot Resistant Yes
Glass Failure Warranty Lifetime with Transfer
Glass Breakage Warranty Optional
Non-Glass Warranty Lifetime with Transfer
Labor Warranty Yes

Ratings & Reviews for Brennan Enterprises

39 reviews

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4.8 / 5 Stars
would recommend

Eileen E.

Zip Code: 76034 (Colleyville, TX)

Recommends this Company

Verified Purchaser

Products Used
Brennan Signature Single Hung Windows
Brennan Signature Specialty Shape Windows
Active Star Active Star Active Star Active Star Active Star
This is a company that knows what true customer service is!

This is a company that knows what true customer service is! Everyone I dealt with were friendly & professional and payment was not due until the job was finished & I was completely satisfied! I will definitely use them again & have no hesitancy recommending them to anyone!

Alyson E.

Zip Code: 75070 (McKinney, TX)

Recommends this Company

Verified Purchaser

Products Used
Brennan Signature Single Hung Windows
Active Star Active Star Active Star Active Star Active Star
By far the best deal

I am so pleased with everything about our new windows. I’ve had them for a few years now, and they are still looking and working great! I was so impressed with Brennan from the beginning. They were punctual to all their appointments, everyone who worked with me from phone calls, estimate, and


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