Window Installation Round Rock, TX

Huge Service Area Across Central Texas

Free On-Site Consultations

Over 1,000 Local Jobs Completed

Unmatched Service & Results

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Professional Window Installation Services That Improve Your Home

When you need new windows, you want a team that brings years of experience and genuine care to your project. Wilco Windows & Siding has served homeowners across Central Texas for over two decades, completing more than 1,000 successful installations. As a locally owned and operated company, we understand the unique climate challenges our region faces and how the right windows can improve your comfort and reduce energy costs. Our consultative approach ensures you get exactly what your home needs, not just what's available in stock. From your initial free on-site consultation through project completion, you'll work directly with local ownership who takes personal pride in every window installation in Lakeway, TX.

Our experience sets us apart, along with our commitment to doing things right. We're the only Jeff's List team approved company in Austin, and we work with more manufacturers than our competition, giving you access to the best energy-efficient products available. Our fully licensed and insured team provides design assistance throughout the process, ensuring clear communication from start to finish. We believe in fair, equitable, and transparent pricing for all clients, and we back our residential work with a full lifetime warranty. If you're dealing with drafty old windows, rising energy bills, or simply want to enhance your home's curb appeal, we're here to help. Contact Wilco Windows & Siding today for your free estimate and discover why Central Texas homeowners have trusted us with their window installation in Round Rock, TX, for over 20 years.

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Why Choose Us

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Locally Owned & Operated - Not A National Chain

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Free Accurate Estimates with Fair and Transparent Pricing

Only The Highest Quality Energy Efficient Materials

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Certified Installers & Factory Trained Techs

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Only Jeff's List Approved Team in Austin

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Expert Design Advice & Consultative Approach

Full Lifetime Warranty on Residential Work

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Fully Licensed & Insured

Work Directly With Our Owners - Marcus & Kyle

Why Choose Us

Two overlapping circles, one solid and one dashed.

Locally Owned & Operated - Not A National Chain

Black quotation marks on white background.

Free Accurate Estimates with Fair and Transparent Pricing

Only The Highest Quality Energy Efficient Materials

Three stylized people icons. One open, one with stripes, and one solid.

Certified Installers & Factory Trained Techs

Black award ribbon.

Only Jeff's List Approved Team in Austin

Black location pin with Wi-Fi symbol.

Expert Design Advice & Consultative Approach

Full Lifetime Warranty on Residential Work

Box with shield and clock icon.

Fully Licensed & Insured

Work Directly With Our Owners - Marcus & Kyle

Work Directly With Our Owners -

 Marcus & Kyle

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Custom Aluminum Windows

Aluminum windows offer durability and strength that work well with Texas weather conditions. These windows resist warping, cracking, and swelling, while their sleek profiles allow for maximum glass area and natural light. Our aluminum window installations feature thermal breaks and energy-efficient glazing options that help maintain comfortable indoor temperatures year-round.

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Fiberglass Composite Windows

Fiberglass composite windows provide the right balance of performance and looks for homeowners who want quality. These windows expand and contract at nearly the same rate as glass, reducing seal failure and extending window life significantly. With good insulation properties and the ability to be painted in any color, fiberglass windows offer both energy efficiency and design flexibility that work with your home's style.

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Replacement Window Services

Our replacement window services give your home new life while improving energy efficiency and comfort. We carefully measure and custom-fit each window to ensure proper installation without disturbing your existing trim or siding. Our replacement process causes minimal disruption to your daily routine while delivering maximum impact on your home's performance and appearance. Contact us to learn more about window installation in Round Rock, TX.

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Convenient Vinyl Windows

Vinyl windows deliver great value and performance for budget-conscious homeowners who still want quality. These low-maintenance windows never need painting and resist fading, chalking, and corrosion from our intense Texas sun. Modern vinyl windows feature advanced multi-chamber designs and high-performance glass packages that significantly reduce energy costs while providing years of trouble-free operation.
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Wood Frame Windows

Wood frame windows bring classic elegance and natural beauty to any home, offering good insulation properties and unlimited customization options. Our carefully crafted wood windows can be stained or painted to match your exact specifications, creating a truly personalized look. With proper maintenance and our professional installation, wood windows provide decades of reliable service while enhancing your home's architectural character and value.
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Wilco Windows & Siding
Spring Savings 20% Off
Transform your Central Texas home this spring with premium windows and siding installation. Save 20% on both materials and professional labor for a limited time.
Call Wilco Windows & Siding today to schedule your free estimate and secure your spring savings!

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Wilco Windows & Siding
Wilco Windows & Siding
Spring Savings 20% Off
Transform your Central Texas home this spring with premium windows and siding installation. Save 20% on both materials and professional labor for a limited time.
Call Wilco Windows & Siding today to schedule your free estimate and secure your spring savings!

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Wilco Windows & Siding
Wilco Windows & Siding
Spring Savings 20% Off
Transform your Central Texas home this spring with premium windows and siding installation. Save 20% on both materials and professional labor for a limited time.
Call Wilco Windows & Siding today to schedule your free estimate and secure your spring savings!

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Wilco Windows & Siding
Spring Savings 20% Off
Transform your Central Texas home this spring with premium windows and siding installation. Save 20% on both materials and professional labor for a limited time.
Call Wilco Windows & Siding today to schedule your free estimate and secure your spring savings!

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Wilco Windows & Siding
Materials Plus Labor Discount
Get complete window and siding solutions with our comprehensive spring promotion. Enjoy 20% savings on quality materials and expert installation services.
Contact Wilco Windows & Siding now to take advantage of this exclusive offer before it expires!

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Recent Projects

Interior room with three white-framed windows overlooking lush green trees. A sofa with a patterned blanket is visible.
Before-and-after of a brick house. Old windows replaced with green-tinted glass. Roof and yard visible.
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Frequently Asked Questions

At Wilco Windows & Siding, we believe in complete transparency and helping our neighbors make informed decisions about our window installation in Round Rock, TX. Here are the answers to our most frequently asked questions:

  • How much experience does your team have with local home improvements?

    We are a locally owned and operated business, led by our owners Marcus and Kyle, and we have served the Central Texas community for over 20 years. In that time, we have completed more than 1,000 local jobs, ranging from custom window replacements to full siding renovations. Unlike national chains, we take personal pride in every project and use a consultative approach to ensure your home gets exactly what it needs to thrive in our specific climate.


    Our deep roots in the community make us a premier choice for window installation in Round Rock, TX. Because we live and work here, we understand the architectural styles and environmental demands of the area. We focus on providing unmatched service and results, ensuring that every homeowner we work with feels like a priority rather than just another number on a spreadsheet. 

  • What types of window materials do you offer for residential projects?

    As a top company for window installation in Round Rock, TX, we offer a diverse selection of high-quality materials, including custom aluminum, fiberglass composite, vinyl, and traditional wood frame windows. Our aluminum options provide incredible durability and strength, while our fiberglass composite windows are designed to expand and contract at nearly the same rate as glass to prevent seal failure. For those seeking classic beauty, our wood windows offer timeless elegance, and our vinyl options provide a low-maintenance, budget-friendly solution without sacrificing performance.


    This variety allows us to provide a perfect match for any window installation in Lakeway, TX. Our independence from a single manufacturer means we can source the best energy-efficient products across the industry. We work with you to choose the specific frames and glazing packages that fit your aesthetic preferences and your home's energy goals.

  • Do you provide a warranty for your installation work?

    Yes, we stand behind the quality of our craftsmanship by offering a full lifetime warranty on our residential work. We employ certified installers and factory-trained technicians to ensure that every window and siding panel is placed with precision. This commitment to quality is why we have remained a premier name in window installation in Lakeway, TX, for over two decades.


    Providing long-term peace of mind is our standard for every window installation in Round Rock, TX. We want you to feel confident that your investment is protected for as long as you own your home. By combining premium materials with expert labor, we ensure that your exterior upgrades continue to perform beautifully year after year.

  • Is your company properly licensed and insured?

    Safety and professional accountability are core values at Wilco Windows & Siding, which is why we are a fully licensed and insured company. Being fully insured protects both our dedicated crew and your property throughout the entire renovation process.


    We bring this high level of professional integrity to every window installation in Lakeway, TX. You can rest easy knowing that you are working with a legitimate, local business that follows all safety protocols and industry regulations. Our goal is to make the renovation process as stress-free as possible by handling every detail with the utmost professionalism.

  • How can your services help me save money on my energy bills?

    We specialize in energy-efficient window installation in Lakeway, TX, offering products that are specifically designed to handle the intense heat of the Texas sun. Our windows feature advanced multi-chamber designs, thermal breaks, and high-performance glazing that significantly reduce heat transfer into your home. By keeping your indoor temperature more stable, our installations allow your HVAC system to run less frequently, leading to lower monthly utility costs.


    Energy efficiency is a primary focus whenever we perform a window installation in Round Rock, TX. Beyond just the glass, we also provide expert design advice on siding and trim that can further enhance your home's thermal envelope.

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Here's what our satisfied customers are saying...

At Wilco Windows & Siding, we take pride in providing exceptional window and siding services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Wilco Windows & Siding and let others know what you think.

Recent Blog Posts

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By Cody Shores April 10, 2025
Siding isn’t just about looks—it’s your home’s first line of defense against the elements. The right siding boosts curb appeal, increases property value, and protects what matters most. But with so many options out there, how do you choose the best fit for your home? At Wilco Windows & Siding, we make it simple. Here’s a breakdown of the top siding choices for Central Texas homes, including the pros, cons, and expert recommendations from your local siding specialists. Popular Siding Options for Central Texas Homes Living in Cedar Park, Austin, or anywhere in Central Texas means dealing with unpredictable weather—scorching summers, hailstorms, and humidity. Your siding needs to be tough, low-maintenance, and built to last. Here’s what to consider: Fiber Cement Siding – Tough, Stylish, and Built for Texas James Hardie® fiber cement siding is our go-to recommendation. Why? It’s designed to withstand fire, pests, and brutal weather while offering a high-end, customizable look. With a wide range of colors, textures, and one of the best warranties in the industry, this option offers unmatched value and peace of mind. Wood Siding – Classic Charm Meets Custom Design Wood siding adds natural beauty and timeless character to any home. It’s eco-friendly […] The post Transform Your Home with the Right Siding appeared first on Wilco Windows & Siding.
By wilcowin September 4, 2024
Your exterior siding is your home’s first line of defense against the ravages of weather, invasive pests, and other hazards. While siding can last for a long time, it’s not designed to last forever.  Do you know when to replace the siding on your house? What happens when your siding starts to fade, crack, bulge, or rot? When is the best time to replace the siding? Here are seven common signs to look out for when planning your siding replacement and giving your home a refresh. How to Know When to Replace Siding: 7 Signs to Consider Whether you’re not sure when it’s time to replace your siding, you’re beginning to see some signs of age or wear, or you’re planning a whole home update, here are some signs to consider for a siding replacement. 1. Your Siding Shows Obvious Signs of Age If your home’s siding is beginning to rot, sag, crack, or buckle, these are clear signs of aging. In many cases, this type of damage is beyond repair. Your siding’s wear and tear will only worsen, possibly leading to structural problems, water damage, pest infestations, etc. It’s best to replace your siding as soon as possible to […] The post 7 Signs It’s Time to Replace Your Home Siding appeared first on Wilco Windows & Siding.
By Cody Shores March 11, 2024
As the days grow longer and the flowers begin to bloom, spring is the perfect time to breathe new life into your home. One of the most impactful upgrades you can make this season is investing in energy-efficient windows. Not only do they enhance the beauty and functionality of your space, but they also contribute to a more sustainable future. Benefits of Energy-Efficient Windows: Save on Energy Costs: Energy-efficient windows are designed to minimize heat transfer, keeping your home cool in the summer and warm in the winter. By reducing the need for heating and cooling systems, these windows can lead to significant savings on your energy bills. Reduce Your Carbon Footprint: Traditional windows can be a major source of energy waste in homes, leading to increased carbon emissions and environmental impact. Energy-efficient windows help lower your household’s carbon footprint by improving insulation and reducing energy consumption. Enhance Indoor Comfort: In addition to saving energy, energy-efficient windows can also create a more comfortable indoor environment. By blocking out drafts and regulating temperature, these windows help maintain consistent comfort levels throughout your home, no matter the season. Increase Home Value: Investing in energy-efficient upgrades like windows can boost the resale value […] The post Energy-Efficient Windows: The Best Green Upgrade for Spring Savings appeared first on Wilco Windows & Siding.
By Cody Shores January 14, 2024
It’s crucial to ensure that your home is well-prepared to withstand the cold temperatures, harsh winds, and potential energy loss. One effective way to achieve this is by sealing drafts and enhancing insulation through proper siding installation. We will explore essential tips to winter-proof your home by sealing drafts and insulating with siding. These practical insights will not only keep your home cozy and comfortable, but also help reduce energy bills during the colder months. Identify and Seal Leaks and Drafts The first step in winter-proofing your home is to identify and seal any air leaks or drafts. Thoroughly inspect your windows, doors, and other areas where cold air can enter, and warm air can escape. Apply weatherstripping to seal gaps around windows and doors, use caulk to seal cracks and openings, and install door sweeps to prevent drafts from entering beneath exterior doors. These simple measures will make a significant difference in maintaining a consistent indoor temperature. Upgrade to Energy-Efficient Windows Consider upgrading to energy-efficient windows if your current ones are old or poorly insulated. Energy-efficient windows have multiple panes, low emissivity (low-E) coatings, and gas fillings that help reduce heat loss and condensation. They provide better insulation and […] The post Winterize Your Home: Essential Weatherproofing​ Tips appeared first on Wilco Windows & Siding.
By Cody Shores October 23, 2023
Are you considering new siding for your home? If so, it’s important to consider all of your options. While vinyl siding may seem like a cost-effective choice, there are many reasons why James Hardie fiber cement siding is the superior option for Austin and Wilco Windows & Siding customers. We’ll explain why you should avoid vinyl siding and opt for James Hardie fiber cement instead. Vinyl siding may be cheaper than James Hardie fiber cement, but it will cost you more in the long run. Vinyl is prone to fading, cracking and warping over time due to extreme weather conditions or age. It’s also at risk of being damaged by hail storms, which can cause costly repairs or replacement. Additionally, vinyl siding does not provide as much insulation as other types of siding materials do – meaning your home won’t be protected from the elements as well. On the other hand, James Hardie fiber cement siding provides an unparalleled level of protection for your home. Designed specifically for Austin and Wilco Windows & Siding customers in mind, this product comes with a 30-year warranty against rotting and termite damage – providing peace of mind that your investment is secure. Furthermore, […] The post Reasons to Avoid Vinyl Siding for Your Home appeared first on Wilco Windows & Siding.
By Cody Shores July 11, 2023
As summer temperatures rise in Austin and Central Texas, homeowners are looking for ways to stay cool while keeping their utility bills low. Installing energy-efficient windows is an effective way to reduce solar glare and heat gain, leading to improved indoor comfort during the hot days of summer. There are many benefits that energy-efficient windows can bring when it comes to staying comfortable and saving money on your utility bills. Energy-efficient windows can significantly reduce your utility bills by blocking out the summer heat while still allowing natural light into your home. These windows help create a comfortable living space as they keep the sun’s glare and heat away from you during those hot days. They also provide additional insulation that helps keep temperatures inside more consistent throughout the day – no matter how extreme it gets outside! A benefit of energy-efficient windows is that they are often designed with advanced features such as low emissivity (Low E) glass coatings which reflect infrared light away from the interior of your house. This helps block up to 95% of UV rays and reduces solar heat gain compared to traditional single pane or double pane window units. The end result is improved […] The post Summer Benefits of Energy-Efficient Windows appeared first on Wilco Windows & Siding.
By Cody Shores May 14, 2023
Are you a homeowner looking to make some upgrades? Replacing your home doors is an excellent way to add value and style to your living space. New doors can help enhance the look of any room, while also providing security and energy efficiency. Replacing your home doors is an investment that can pay off in the long run. New doors are more energy efficient than older ones, meaning they will help keep cool air in during the summer and warm air in during winter. This means you’ll be able to save money on your energy bills by investing in new home doors. New doors also provide a higher level of security for your property – this can be especially important if you live in a high-traffic area or one that has had break-ins in the past. Aesthetically, a fresh set of stylish, modern fixtures can bring life back into any space and make it look like brand new again! You have countless options when it comes to door designs and materials, so you’re sure to find something that fits perfectly with the style of your home. Ready To Get Started? Selecting the right replacement doors for your home is a […] The post Home Door Replacement: Enhance Security, Style, & Energy Efficiency appeared first on Wilco Windows & Siding.
By Cody Shores March 10, 2023
Are you a home or business owner in Texas looking to upgrade your windows? You’ve come to the right place! Wilco Windows & Siding has over 20 Years of experience right here in Central Texas. In this blog post, we’ll provide all the information you need about installing new windows in Texas – from understanding local building codes to choosing the best materials. We’ll also discuss how Wilco Windows & Siding can help make your window installation project a success. So let’s get started! If you’re looking to upgrade your windows in Texas, it’s important to be familiar with the local building codes and regulations. Every state has its own set of rules and guidelines that must be followed when installing new windows. In Texas, window openings must have a minimum sill height of 24 inches from the finished floor for safety reasons. All glass used for window construction must comply with the National Building Code requirements for shatter resistance and thermal performance. When selecting materials for your window replacement project, make sure they meet these standards. Wilco Windows & Siding is experienced in working within local building codes and can help ensure that all aspects of your installation are […] The post Everything You Need to Know about Home Window Installation in Texas appeared first on Wilco Windows & Siding.
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