See a full inventory at our convenient showroom.


Available in custom or traditional fits. Allis awnings are made with commercial grade aluminum or fabric and bring a new look and function to your home.



Allis windows are premium quality and energy efficient with insulated glass and sash. Our maintenance free windows feature a lifetime transferable warranty.

Entry Doors

An Entry Door can add both beauty and resale value to your home.  Our Doors are of the highest quality and feature a lifetime warranty.

Storm Doors

Allis offers premium storm doors feature the highest reliability and strength featuring convenient retractable screens and jalousie glass available.


Allis features LP Smartside and Mastic Structure thermal siding, a premium vinyl siding that will reduce noise and energy bills.


Allis is proud to offer high quality long lasting roofing products. Craftsmanship is our cornerstone. Featuring Malarkey brands.

Gutter Guards

Never worry about getting on a ladder to clean your gutters ever again. No gutter replacement is necessary with Allis!


Made with commercial grade aluminum, Allis collection of railings always includes a lifetime warranty.

Allis strives to be your partner for all your home improvement needs. We’ve established and upheld a multitude of relationships with satisfied home improvement customers for over six decades.  Our loyal customers know they can count on Allis for quality, style and durability at an incredible value. Our customers rely on Allis and our own hourly paid craftsmen to provide timely to provide timely service meeting their unique needs while remaining within budget. It’s our dedication to consistently meeting our customers’ needs which continues to build lasting relationships with all our customers.

– Mark Brost

A Rich Allis History starting in 1955

Allis is a family owned Milwaukee home improvement business founded by Ed and Bee Brost in 1955.  Mark and Kathy continue to uphold their commitment to quality, full value and prompt service. They take pride in following Ed and Bee’s footsteps and adhering to their principles. Allis has a commitment that has continuously been passed on to the 2nd, 3rd, and now 4th generations now currently carrying on the family tradition. For over 60 years, Allis has been providing top value awnings, windows, and doors in Milwaukee and throughout Southeastern Wisconsin.