Window Installation Services
From Mainstream Home Improvement

Quad City Window Installation Contractors

Proper installation is crucial when it comes to replacement windows, as it directly impacts the performance, efficiency, and longevity of the windows. The most important factors to consider during the installation process include accurate measurements, appropriate sealing, and secure fastening to ensure optimal insulation, prevent air leaks, and protect against water infiltration. Incorrect installation can lead to energy loss, reduced durability, and the need for costly repairs or replacements down the line.

Hiring a professional window installation company like Mainstream Home Improvement in Moline, Illinois, ensures that your windows are installed correctly and efficiently. Our experienced team has the necessary skills, knowledge, and tools to guarantee that your new windows perform at their best and offer long-lasting benefits. When you choose Mainstream Home Improvement, you can trust that your investment in high-quality replacement windows is supported by top-notch installation services, providing you with peace of mind and a comfortable, energy-efficient home.

bay window installed by a window installation contractor near the quad cities

Why Choose Mainstream Home Improvement For Your Window Installation Project?

Replacement windows and getting new windows installed has been our primary focus for homeowners in the Quad Cities area since 2001. With over 20+ years of experience in the industry, we know all of the ins and outs of window shopping, designs, products, features, and of course – the factory certified professional installation process. Here are four reasons why you should choose Mainstream Home Improvement for your window installation project.


Stress-Free Installation

We handle your entire project from design to installation and perform a final quality check for a stress-free and easy window installation process.


Personalized Options

Our windows come with several customizable options such as decorative glass, colors, & finishes for homeowners to choose from.


Affordable Prices

You’ll never experience pricing games with Mainstream. Get affordable window installation services for your Quad Cities home.


Lifetime Warranty

Many of our products offer lifetime warranty protection. Our team can provide you with the – no fine print – documentation needed to make a solid choice.

large windows in a living room installed by a window installation expert quad cities

Window Installation in the Quad Cities

At Mainstream Home Improvement, our team is known for providing high quality window installation services for homeowners in the Quad Cities metropolitan area. From choosing the design of your windows to prepping the opening before installation, our estimators and installers take all of the proper steps on your window installation project to deliver a positive renovation experience. You can choose between dozens of different styles, colors, sizes, and design options so that you get exactly what you’re wanting for your home. Before completing your window installation, our estimators and installers conduct a final inspection to make sure everything is up to company standards. Contact us today to schedule a window installation service with our team of professionals.

Our Window Installation Process

We know how nerve-racking it can be to have several contractors in and around your home making changes during renovation. Mainstream Home Improvement has been in the industry for 20+ years and knows a thing or two about how to quickly and efficiently install residential windows thanks to our step-by-step process. While most window installation procedures are fairly similar, ours involves several quality checks, multiple checkpoints, and protocols. Here are the six general steps that are included in every one of our window installation projects:

  • 1

    Carefully remove the existing window

  • 2

    Make sure the opening is level and square

  • 3

    Prep the opening for a tight fit.

  • 4

    Install the new window and make adjustments

  • 5

    Insulate around the new window

  • 6

    Install the applicable trim

Mainstream Home Improvement Offers The Quad Cities Hundreds of Replacement Window Options and Combinations

Replacement windows offer a diverse range of customization options, allowing homeowners in Davenport, Bettendorf, Rock Island, and Moline to choose the perfect design to match their unique tastes and home aesthetics. At Mainstream Home Improvement, we understand that not everyone wants the traditional white-on-white window look. That’s why we offer a wide variety of options, such as wood grain finishes on the interior and bold colors like black on the exterior, to suit your personal style.


In addition to color choices, we provide an extensive selection of window styles, including double-hung, casement, picture, awning, and many more. We also offer various glass package options, hardware choices, and grid configurations to further personalize your replacement windows. Each window you purchase from Mainstream is custom-made to fit the specific opening in your home, ensuring a seamless integration that enhances your home’s overall appeal.


By choosing Mainstream Home Improvement for your window replacement needs in Davenport, Bettendorf, Rock Island, and Moline, you gain access to a world of possibilities, allowing you to create the ideal look and functionality for your home. Trust our experts to help you navigate the many options available and find the perfect combination of style, efficiency, and durability.

Determining the Ideal Window Options for Your Quad City Home. How about Casement Windows?

Casement windows are a common window type found in Midwestern homes, primarily due to the advantages they offer in coping with the region’s unique weather conditions. These windows provide excellent ventilation and are designed to tightly seal when closed, making them highly energy-efficient and perfect for keeping out drafts during cold winters and maintaining cool interiors during hot summers. Casement windows also offer superior weather resistance, as their design helps to effectively repel rain and snow.

Choosing the right window style for your home is crucial in enhancing its overall appearance and functionality. Certain homes may look best with a specific type of window, and making the right choice requires professional guidance. Mainstream Home Improvement in Moline, IL, offers expert assistance in determining the ideal window type for your home, taking into account your property’s architectural style, your personal preferences, and the local climate. Trust the professionals at Mainstream Home Improvement to help you select and install the perfect casement windows or other window styles that best suit your home and needs.

windows installation specialists quad cities
double hung window installation contractors quad cities

The Benefits of Our Double-Hung Windows

Double-hung windows are one of the most common options for homeowners in the Quad Cities area, and the Midwest in general. That’s because they are the most versatile in many situations. For one, you can open them in an emergency and get out of the house. Many of them have tilt in sashes for cleaning. Plus the mechanics involved in today’s double hung windows have components that are military grade instead of a rope holding metal weights. Some of the younger generations may not understand that reference. Trust us when we say, our double hung windows are built to last – forever. Mainstream Home Improvement offers reliable window installation services for residential properties looking to upgrade their current windows and save money on energy. If you’re looking to install quality windows in your home, here are several benefits you should know about our double-hung windows.

Service Areas for Window Replacement & Installation

Looking for quality energy efficient windows in the Quad Cities Area.   Click your city to find out more about our replacement window services in your area