Window Replacement And Installation

Replacement Windows in West Allis, WI

Who we help and
how we solve it

Older homes with drafty or outdated windows

Wood rot, failing seals, and thin glass make older windows hard to open and expensive to heat or cool. We replace worn windows with modern, energy-efficient styles that seal properly, reduce drafts, and make your home more comfortable year-round.

You’ll see clearer views, easier operation, and long-term savings through better insulation.

New homeowners wanting a fresh look

Sometimes the house is perfect, but the windows date everything around them. We help you choose styles that match your aesthetic, from classic double-hung to modern picture or casement designs, without overwhelming maintenance.

You get windows that look sharp, function smoothly, and improve curb appeal right away.

Long-time residents ready to improve efficiency

If you’ve been thinking about updating your windows for years, now is the time. New insulated glass and tight-sealing frames help reduce energy loss, lower utility bills, and make rooms more comfortable in both summer and winter.

We guide you through style, material, and finish options so you get windows that enhance comfort, value, and day-to-day living.

WHAT TO
EXPECT WHEN
YOU HIRE SIDEX

Your project begins with a free in-home consultation. We take measurements, look at your existing windows, and discuss styles, frame materials, and glass options that fit your home and goals. You’ll receive a clear written proposal with scope, price, and an estimated installation window. On installation day, we protect nearby floors and furniture and carefully remove your old windows. We inspect the opening and framing; if we find soft spots or air gaps, we address them before installing the new unit. Your windows are leveled, insulated, and sealed to ensure smooth operation and proper energy performance. Trim is replaced or reinstalled for a clean finish. Before we leave, we walk you through how to operate and care for your new windows. We thoroughly clean the space so that everything looks tidy and ready for use.

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Materials That Make Life Easier

Our replacement windows are built to perform in Wisconsin’s changing climate. Each style features insulated glass and tight-sealing frames to reduce drafts, improve comfort, and help manage seasonal heating and cooling costs. The materials resist swelling, cracking, and fading, so your windows look good and operate smoothly for years with little maintenance.

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Local Accountability Without The Runaround

With SiDEX, you work with a Wisconsin-based team from start to finish. Your in-home consultation, scheduling, installation, and follow-up are all handled locally—no call centers, no endless transfers. Our installers are trained on the exact systems we offer, so the bathroom you choose is installed correctly and backed by people who understand Wisconsin homes. If you ever have a question, before, during, or after your remodel, you call the same number and talk to real local staff who know your project. Homeowners choose SiDEX because they want dependable communication, familiar faces, and support that doesn’t disappear once the job is done.

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Permits, Plumbing, & Code

Some window replacement projects require permits, especially if framing changes or structural repairs are necessary. If permits are required in your municipality, we’ll guide you through the process to ensure everything is completed correctly.

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Care & Maintenance

Your new windows are built for easy upkeep. Most styles tilt or lift for simple interior cleaning, so you can wipe the glass with mild soap and water - no specialty products required. Frames resist staining and do not need painting or sealing. We’ll leave you with care guidance based on your window style so you can keep them looking and performing great year-round.

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Cost-timeline-and-financing-icon

Every bathroom is different. Price depends on the wall system you choose, the type of glass, any plumbing moves, and accessories like seating and grab bars.

Your consultant will provide an exact quote after measurements and design are complete. Timelines vary with scope and scheduling. Promotional financing is available for qualified buyers, and we can review options during your visit.

Frequently Asked Questions

How long does window replacement take?
Most standard window replacements can be completed in one day, depending on how many windows are involved. Larger projects or specialty windows may take longer. We’ll provide a clear timeline before work begins.
Will new windows really improve energy efficiency?
Yes. Modern replacement windows use insulated glass, weather-tight seals, and advanced framing materials that help reduce drafts and maintain indoor temperature—cutting energy waste year-round.
Do all my windows need to be replaced at once?
No. Many homeowners complete window projects in phases. We can prioritize the most drafty or outdated windows to help you stay on budget.
What maintenance is required?
Most vinyl and fiberglass windows are low-maintenance. Cleaning the glass and wiping frames with mild soap is typically all that’s needed. We’ll provide care tips based on the windows you select.
Are permits required?
Permits are usually not required for standard window replacements, but some municipalities require them for structural changes or enlarging openings. If permits are needed, we’ll guide you through the process.
Can you match my current style?
Absolutely. We offer double-hung, casement, picture, sliding, awning, bay, bow, and more—so we can match your home’s architectural style and interior finishes.
Will window replacement disrupt my home?
We keep disruption to a minimum. Our team protects floors, removes old windows safely, installs and seals new units, and cleans the workspace before leaving.
before tub to shower
after tub to shower

Customization that
fits your home

Every home is unique — which is why we offer window options that strike a balance between style, performance, and practicality. You can choose from multiple window types, grid patterns, colors, and interior/exterior finishes to match your home’s architecture. If energy efficiency is the priority, we’ll help you select advanced glass packages and insulation upgrades designed for Wisconsin’s hot summers and freezing winters.

Double-Hung
Bow Windows
Bay Windows
Casement Windows
Sliding Windows
Picture Windows
Awning Windows
Hopper Windows

Reviews from Real Customers

Excellent quality windows ...crew did a great job on install and cleaned up their mess. Thank You to everyone at Sidex !
Sidex sided my entire home and they did an amazing job. The entire team was very professional and courteous from start to finish. I received daily updates if the workers would not be working on my home that day, due to the inclement weather. The job was completed in a timely manner. I would presonally refer Sidex to anyone who is looking for home improvements.
The best decision ever, that I've made so far, as a new home owner..
I had my bathroom remodeled.
Had Steve come out and install our tub/shower. He was extremely professional, clearly explained everything to us and went out of his way to ensure our ceiling was level and everything was perfect. One of the best customer service experiences I’ve ever had.
it was a pleasure working with the young man was very courteous and made sure there waas no snow tracked into the home and very pleased with the windows
I loved everything about Sidex... from the quick, personal phone calls answered, to quick responses to all questions, to Steve my installer. My shower install is beautiful. Excellent company all around. Highly, highly recommended!

sidex service area map

SERVICE
AREA

We serve Milwaukee, Waukesha, Racine, Kenosha, Ozaukee, Walworth, Jefferson, and Dodge Counties. If you searched for tub to shower conversion near me in the Milwaukee area, you are in the right place.

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READY TO TALK WITH A
LOCAL SPECIALIST?

Schedule a complimentary window consultation to review styles, energy efficiency options, and pricing tailored to your home. We’ll take precise measurements, help you choose the best window designs for your space, and provide a clear, written quote. Evening and Saturday appointments are available. Prefer to speak with someone now? Call SiDEX, and our local team will help you plan your replacement window project with confidence.