Window Replacement Services

Our Process

Green T offers window replacement and installation services for homeowners in Chicago, Illinois, and the surrounding suburbs. Clients interested in window installation services can hire Green T to handle the installation portion of the process for new construction or a replacement. 

Our window replacement service involves removing existing windows in customers’ homes before installing the new windows. All of our window options are available for installation and replacement services.

Looking For Windows Options Like These? Check Out Our Options Page

Clients interested in window installation or window replacement services can request a quote. After that, a Green T window expert will come to their home for free to assess and provide an estimate for the client in person. 

Once a customer decides to purchase our services, we will walk them through the paperwork. Subsequently, we will schedule a window installer to come to their home and measure for the new replacement windows. Our installer will send the final specs to a manufacturer to build the windows. After that, the manufacturer will ship the windows to Green T Services. Finally, we will come back to the customer’s home to remove and install or simply install the customer’s new windows.

window replacement services

Why Trust Our Window Replacement Services?

At Green T Services, our mission is to provide customers with the highest quality window replacement services for the most affordable pricing. As a local, family-owned business, we’ve built our success from genuinely caring about our customers. 

We have a wide variety of high-performance features, styles, and color options. This gives clients the freedom to choose replacement windows that meet their needs and budget. 

Our technicians have a minimum of seven years of experience and are licensed, bonded, and insured. Green T Services has an A+ rating from the Better Business Bureau because we prioritize customer satisfaction in everything that we do.

Each of our windows meets or exceeds the qualifications outlined by the Illinois Energy Efficient Building Act and is ENERGY STAR® certified. ENERGY STAR® certified products meet the standards set by the EPA for energy efficiency. We care about supporting our community as much as we care about our environment. Consequently, all of our products are locally-manufactured. 

Green T Services believes convenience and quality should go hand in hand for our customers. We offer free estimates and appointment flexibility. Our goal is to protect clients’ investments and make sure that each of them can feel safe and secure in their decision to hire Green T Services for window installation or window replacement services.

Window Replacement Services

What are Window Replacement Services?

Much like the name suggests, replacement windows are windows explicitly designed to replace an existing window in one’s home. This function means that the technician installing these windows does not need to worry about removing materials related to someone’s home walls. 

Instead, Green T Services technicians measure the existing window opening for the window a client would like to replace. They then use the appropriate replacement window to replace the window itself.

Why You Need to Replace Your Windows


Windows are the eyes of the home. They affect how the world sees a home and how homeowners see the world outside of their homes. Due to different construction stages over a home’s life, houses often have varying styles of windows. Replacement windows give homeowners a chance to create uniformity across the kinds of windows in their homes. As a result, homeowners will increase their curb appeal and improve the ambiance of their homes.

Home Value

Replacing windows as homeowners get ready to sell their home is a great way to boost the property value. The return on investment for replacing windows is approximately 70 to 80 percent. This number depends on the type of replacement windows house location. Additionally, replacing old windows can get in front of any potential issues that may come up during a pre-sale home inspection.


Traditional, outdated windows can be challenging to access and clean. Thus, they often require the costly process of hiring outside help to do so. Modern window manufacturers take the accessibility of cleaning into consideration in the design of their windows. With updated window styles, homeowners will therefore be able to clean them more efficiently. Likewise, they will be able to clean their windows as often as they would like without the hassle of hiring professional help multiple times a year.

Energy Savings

Replacement windows reduce energy expenditure and heating and cooling costs. Replacing windows and improving the seal between the glass and the frame enhances insulation. As a result, this reduces air seepage around the home. Consequently, homes maintain temperatures from heating and cooling efforts more efficiently.


If homeowners’ current windows are not weather resistant, over time, they may develop rot or gaps in the frame. This is due to moisture and changes in temperature. This weather damage allows drafts of cold weather to sweep through the home. Replacing old windows with the proper windows for a home’s needs will alleviate issues. They will also prevent any further damage from occurring.

Fogged Double-Pane Glass

An unfortunate predicament of owning double-pane windows is when fog is trapped between the glass panes. The only options are to replace the glass, or replace the windows. Replacing the windows can be a more cost-effective long term solution.


Trying to repair old windows comes with the difficult task of scouring the internet for hard-to-find-parts from online suppliers. Updating the windows in one’s home with new replacement windows will make future maintenance and repairs less costly and time-consuming.


Updated replacement windows ensure homes are secure by adequately functioning to keep out intruders. Additionally, they keep homeowners safer if a window breaks by shattering into small pieces instead of large shards.

What is Low-E Glass, and What are its Benefits?

All of the window options for Green T window replacement services in Aurora use low-e glass. Low-E glass has a special coating that blocks long-wave UV rays, sunlight’s heat source, from entering the home. This coating allows light, also known as short-range radiation, to continue to enter the home. 

Consequently, homeowners receive all of the benefits of sunlight entering the windows of their home without the heating and cooling loss that comes from long-wave radiation. Low-E glass improves the home’s heating and cooling efficiency, lowers energy bills, protects the color of furnishings from fading due to sunlight, and reduces the build-up of mold, mildew, and condensation.

What is a Vinyl Frame, and What are its Benefits?

Every one of our replacement window options uses a vinyl frame. Green T chooses to use vinyl frames because they are the number one choice for affordability and energy efficiency. Manufacturers make vinyl frames from polyvinyl chloride. This material easily expands and contracts, making the frame less likely to warp and experience air leakages. 

Moreover, vinyl frames are more durable than their wood and metal counterparts. This feature means homeowners will need fewer window repair and window replacement services later down the line. In addition, manufacturers make vinyl frames in the color of the homeowner’s choosing. As a result, the aesthetic of vinyl frames is built to last. 

Homeowners can feel confident their frames will look the same a decade later as they do on the installation day. Finally, vinyl window frames are easy to clean, and are moisture, dirt, stain, mold, scratch, and dent resistant.

Window Replacement Options

All of Green T’s windows utilize low-e glass and vinyl frames to give customers high quality, affordable window replacement options for maximum strength, durability, and energy efficiency.


Double-Hung: Our double-hung windows have two sashes that can tilt in and move up and down. The design of these windows makes them very easy to operate and clean.


Sliding: If homeowners have a large space for a window, sliding windows are a versatile option. They can be customized to fit different size and style requirements and provides an open view without obstructions. The sashes on this style of window lift, and homeowners can remove them for cleaning. We also have a slide-n-swing option with sashes that swing in for cleaning.


Casements: Casement windows use one or more hinges to attach to their frames from the side of the window. The location of the hinges depends on the type of casement window. The styles of casement windows we have to choose from are bays, twin, bows, and triple configurations. The folding hardware for these windows adds a modern flair to the homes they are in. Customers have the option of getting a casement window with a center bar to give the look of a double-hung window. They may choose between blind panel inserts and glass blinds. These windows are easy to clean and have an extruded screen frame held in place securely with small tabs.


Picture: Picture windows are perfect for large rooms in one’s home. These windows act as a picture frame for an exterior view, giving homeowners an unobstructed look at the world outside of their home. This type of window is fixed in its frame, meaning there are no movement features.


Garden: Garden windows are typically installed in kitchens and are angled at 90 degrees from the wall. They are perfect for creating a space for clients to place their herbs and house plants. This design includes a pane at the top that acts as a roof, creating a box-like space that allows plants to get as much sunlight as possible.


Bay & Bow: Bay and Bow windows have panels angled to create an outward projection from the wall on a home’s exterior. These windows create an open look for the interior while letting in lots of natural light. Bay and Bow windows are fantastic for rooms with large window spaces.


Awning and Hopper: Awning windows have a hinge at the top that allows the window to swing outward to open. This creates an awning-like structure keeping the rain out and letting sunlight in. Hopper windows have a hinge at the bottom and a sash that opens inward so that it is inside the home and helps with airflow. Awning and Hopper windows are popular choices for basements and bathrooms. These window options each have designs that make them easy to clean while improving the home’s architectural layout.


Basement: Basement windows, also known as escape windows, can also be used in attics and basements. These windows are typically either awning, hopper, or slider window styles. In addition to adding light and increasing airflow, basement windows come with a quick release so homeowners can use them for a safe escape should an emergency arise.


Egress: Egress windows are large enough to be used as a safe emergency entry and exit point. This window style comes with a ladder or steps to use in an emergency along with the window called an Egress Well.


Custom: We offer custom window designs when all of our standard window styles do not meet our clients’ needs. We will work with customers to create the perfect window style for their home.

Green T Services replaces and installs windows to boost the curb appeal and energy efficiency of your home. 

Frequently Asked Questions (FAQ’s)
Does replacing windows save energy?

Absolutely! Replacing single-pane windows with energy-efficient windows can save up to 30% a year on energy bills. These are the windows Green T offers for window replacement services. 

Energy-efficient windows improve insulation, and consequently, reduce the need for heating and cooling systems to work as hard to maintain a comfortable home temperature.

Why do I need an in-home consultation?

Green T Services offers free in-home consultations for window replacement services. 

Green T experts need to measure, inspect, and assess every client’s home’s unique attributes. This allows us to customize window replacement options that are best suited for their needs.

How much value do new windows add to a house?

On average, in the US, replacement windows promise approximately a 70-80% return on investment. This depends on the type of window and a home’s location, so give us a call if you’d like to learn more.

Is it okay to have windows installed in cold weather?

Yes! If windows are poorly insulated and not doing their job to make you comfortable, then it is essential to get replacement windows as soon as possible. This fact rings true regardless of the time of year. 

In fact, there are many benefits to replacing home windows in winter. These benefits include lower energy costs and an extended HVAC lifespan.

How long does it take to replace one window?

The time it takes to replace a window varies drastically depending upon window size and style. Consequently, Green T replacement experts can take anywhere from 45 minutes to several hours to replace one window.

Is it normal for new windows to sweat?

Yes! It is normal for new windows to sweat for various reasons, including humidity, insulation, and home location. So, if you see this, don’t sweat it!

Should I replace all windows at once?

It can be slightly easier to replace all windows at once. However, many customers replace them in stages. The ideal schedule for window replacement thus depends on the needs of the individual homeowner. 

Therefore, it is best to give us a call so a Green T window replacement expert can help you find what works best for you.

What Our Clients Say

Russell Boeman
Russell Boeman
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From start to finish the carpet cleaning job was everything and more than what was expected. The quick response and over the phone quote was very specific and task oriented to make sure all information was accurate. The scheduling was effortless, the pre-arrival phone call was accurate, and the technician Daniel L arrived on time with the call. Daniel was highly professional, provided an in depth explanation what was to be done, provided information on the company's other services, and promptly proceeded to very thoroughly clean a large family room, a small staircase runner, a large staircase, two area rugs, and a large porch with older indoor-outdoor carpeting. Daniel was very polite and respectful of the premises, adhering to the current safety protocols at all times. The quality of the work and the results has us considering Green T to deep clean the hardwood floors, something we hadn't thought of doing before. And have Daniel L as the technician!
Anonymous A
Anonymous A
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I feel SO fortunate to have discovered Green T Services and learn the variety of services they provide. Recently, Brian G. (who turned out to be much more than a handyman), successfully completed a couple projects at my home. Brian's knowledge, efficiency, and professionalism, in addition to his friendliness and patience with me watching him and asking lots of questions was fantastic. Even with his attention to detail, he completed the work in the estimated amount of time and cost. I am now making a list of other needed work I will certainly call Green T for assistance. Thanks Brian!
Chantal Cowie
Chantal Cowie
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Brian performed handyman services for my apartment. He hung up tons of pictures and paintings with lightning speed. His work was immaculate. I was so impressed by his level of professionalism and quality of work. I am so happy I hired Green T Services for this job. Brian did a much better job than I ever could have, and my apartment looks fantastic now. I will be recommending Green T Services to all of my friends and family for every one of their home improvement service needs.
Jill W
Jill W
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Justin cleaned all our vents, and also cleaned our carpets. He was professional, friendly, and very informative. He told us exactly what he was going to do and how it was going to work, before beginning any work, and afterwards, he was good at telling us what had been better or worse than expected. We very much appreciated the information. He managed our expectations appropriately, letting us know which stains he probably would NOT be able to remove (for example, ones that had been there long enough to set). We would definitely use the company again, and hope to have Justin back if the work was suited to him!
Twyler Jenkins
Twyler Jenkins
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I had Daniel Liscano as my technician today and his service was SUPERB! He was professional, nice, courteous, and went above and beyond to ensure I was a happy customer. I had three different services completed in my house and Daniel did not cut any corners on any of them. He was here all day from 9-5 and he worked very hard alone to clean, sanitize, deodorize, and disinfect my house. From the air duct cleaning, hardwood floor cleaning, and carpet cleaning, Daniel completed an EXCELLENT job! This is something I had been wanting to do for a long time and finally took the time to schedule the appointment and I am really happy I did! I can breath better and my allergies are not bothering me as much already! Thank you Daniel and thank you Green T for delivering on your promise of service and professionalism! It was worth every penny! I will be ordering more services soon!
Andrew Orozco
Andrew Orozco
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Danny was the Air Duct Technician who assisted us. He was absolutely phenomenal! Danny was courteous, friendly and explained in detail. He walked me through all the steps, set proper expectation and followed through. I appreciate Danny for going above and beyond. I will use Green T again and I would recommend their service.
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