Window Installation Service & Siding in Round Rock, TX

We are locally grown, locally owned, window and siding experts. Wilco Windows & Siding is a leader in the industry with over 20 years of experience right here in Central Texas. Reach out to us today to answer any questions you may have or to request a free on-site consultation.

About Wilco Free Consultation

Expertise

Experts are made, not born. It requires a journey of deliberate practice, investment and continual learning to genuinely become an expert in a field. At Wilco Windows & Siding, that’s exactly what you get. We bring years of experience and design knowledge to every siding and window project.

Craftsmanship

We work with the highest quality, energy efficient products to ensure all of our materials meet the strictest quality standards. Our knowledge and passion for design, combined with our hands-on consultative approach, guarantees project success and client satisfaction.

Assurance

Not only do we partner with the best local installers and award-winning manufacturers, we personally show up for every install to insure each project is done to the expectation of our client. We stay current on industry best practices, and offer a full lifetime warranty on our work.

Over 20 Years of Experience in Window & Siding Installation

We cut our teeth in the window and siding industry right here in Central Texas. With over two decades of experience, we know the best way, and the right way, to handle your window replacement, window installation, window repair, and siding projects.

Our vision is to combine our expert craftsmanship, creative design, and professional experience with energy-efficient, high-quality products. We work directly with you every step of the way, making sure you get the attention you deserve.

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Windows

Expert window replacement and installation: energy efficient, functional, beautiful.

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Siding

Re-side your home with our top of the line fiber cement siding by James Hardie.

Expert Installation & Replacement

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Window Installation

Replacing your windows has many benefits, including: reducing energy use, decreasing unwanted outside noise, adding beauty to your home and increasing your property value.

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James Hardie Siding

James Hardie products grace the sides of more than 10 million homes across North America. Couple that with our expert service, and you have the best siding possible.

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Siding Installation

Quality materials and aesthetics matter. This is why we’ve partnered with the best manufacturer, James Hardie, and the best local installers.

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Your Siding Project: What To Expect

Have questions about what all is involved in re-siding your home? Not to worry, we've provided an outline of the entire process, every action, step by step.

Our Windows Services

The upper half of the image shows a building's exterior with dirty windows labeled "BEFORE," and the lower half shows the same windows clean and clear labeled "AFTER."

Reliable Window Replacement

Our window replacement services in Round Rock give homeowners a way to refresh their home’s appearance while improving insulation and energy performance. Whether your current windows are drafty, damaged, or outdated, we install replacements designed to stand up to Texas heat and sudden weather changes. Replacing windows can reduce utility costs, enhance curb appeal, and increase the overall comfort of your living spaces.

Professional Window Repair

Our window repair services in Round Rock address issues like broken panes, malfunctioning hardware, or deteriorating seals. By repairing rather than replacing when appropriate, we help extend the life of your windows while restoring their functionality and appearance. Given the area’s frequent storms and intense sun exposure, timely repairs are critical to preventing further damage. As an experienced window contractor, we ensure every job is done right.

Upper half of the image shows a window view with 'BEFORE' labeled, and the lower half shows an improved window view with 'AFTER' labeled, illustrating home renovation results.

Expert New Window Installation

For new construction or home additions, our new window installation services in Round Rock ensure your home starts with top-quality windows from day one. We focus on proper sealing, fit, and finish to help your windows resist moisture infiltration, UV damage, and air leaks – key considerations in Central Texas. Every installation meets or exceeds local building standards for safety and performance.

Why Round Rock Homeowners Trust Wilco Windows & Siding

Wilco Windows & Siding delivers professional window and siding solutions to homeowners throughout Round Rock, TX. In Central Texas, where summer heat, seasonal storms, and humidity can all impact home efficiency and comfort, the right windows make a big difference. As a trusted window company, we specialize in window replacement, new window installation, window repair, and energy-efficient window upgrades, each tailored to local building codes and performance needs. Our team combines skilled craftsmanship with an understanding of Texas weather challenges to provide durable, attractive solutions that help your home look great and perform efficiently year-round.

A composite image showing a person on a ladder working on a window with the left side depicting the old window before replacement, and the right side showing the new window after installation, with a large arrow indicating the transformation.

Trusted Local Window Contractors

As a locally grown and owned business serving Round Rock and Central Texas, we know local building codes, climate stressors, and aesthetic preferences. Our window contractors are licensed and insured, and we maintain consistent oversight of each job to ensure quality expectations.

Before and after view of a home exterior renovation featuring new windows and siding by Wilco Windows & Siding.

Window Companies You Can Rely On

Unlike national chains, we live here and respond locally. As a trusted window company, our commitment is to long-term relationships with neighbors. You’ll deal with the same team throughout your project — from the quote to the final inspection — so accountability stays tight.

Professional Window Installers With Expertise

Installing windows in Texas brings unique challenges: thermal expansion, high UV levels, storm resilience, and sealing against summer downpours. Our installers are trained in best practices to prevent leaks, drafts, and seal failures, and always comply with local codes and manufacturer guidelines.

Siding & Door Installation Services Available in Round Rock, TX

Although window services are our specialty, Wilco Windows & Siding also offers siding installation and door installation services in Round Rock and nearby areas. Whether you’re re-siding your home or upgrading entry and patio doors, we bring the same high standard of craftsmanship and local insight to those projects too.

What Our Customers Say

We just replaced 29 windows in our house. Our first consultation was very low pressure, and my husband and I were impressed with their level of knowledge and selection of windows that they offered. Fair pricing, on time and flawless installation. Thank you, Marcus and Kyle!

Kora K.

Residential Customer

The entire team at Wilco Windows was fantastic! Loved how they kept me up to date on the process. They were on time. Professional. Great workmanship. Friendly and polite not only to me but to each other as they worked. I couldn't be happier with the results.

Jackie B.

Residential Customer

Marcus and Kyle were professional and kind from start to finish! They answered all my questions, have competitive pricing and a great product.

Lisa H.

Residential Customer