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We’re Gillette’s Home Remodeling Experts

In the heart of energy country, Gillette homeowners need homes that withstand snow, wind, and temperature swings. Great Day Improvements proudly serves the area with professional renovation services designed for lasting comfort and protection.
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Farmhouse-style home with wraparound porch and glass sunroom addition, renovated by Great Day Improvements for year-round comfort and expanded living space.

Expert Home Renovation Services in Gillette, WY

Bath Remodeling

Bath Remodeling
Siding

Siding
Windows

Windows

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Gillette Home Remodels, Designed Around You

Accountability

We stand by what we do because we own every step—no handoffs and no wasted time. High quality comes standard with our skilled employees carefully handcrafting our products in the USA. 

Expertise

Our specialized experts live where you live and understand local factors that affect your home. We design and manufacture what we install to ensure a perfect fit every time. 

Value

Your next project is possible with a variety of plan options to fit your budget. We build and install our products to last—for you and the next homeowner.

WHY CHOOSE US
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Explore Your Options, Risk Free

Have questions? Still deciding who to work with? No problem. You can schedule a free, no obligation, in-home consultation. Our team will walk you through all your options and provide you with a detailed project quote so you can choose your remodeler with confidence. 

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The Great Day Improvements Experts in Gillette, WY

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Homeowners Love Working With Great Day

The salesman we dealt with was on time, polite, and personable. He explained the process and answered our…
T LR View Review

The salesman we dealt with was on time, polite, and personable. He explained the process and answered our questions thoroughly. He did not try to upsell and when we ended up removing a couple windows from our order he didn’t pressure to keep them. Once the windows and door are installed I will update the review.

Window and Sliding glass door replacement
melissa garmon View Review

Window and Sliding glass door replacement

The experience that my family had with Champion Replacement Windows of Denver from the beginning to the e…
Karen Campbell View Review

The experience that my family had with Champion Replacement Windows of Denver from the beginning to the end was exceptional from all employees. From the beginning of getting the quotes and measurement to the end of getting the old patio doors replaced was outstanding with communications from Champion staff members via emails, texts, and phone calls to keep us updated with the process of getting the patio doors custom made to the installation process. The install team was truly exceptional as they explained every process on the day of the install and made certain that everything was done properly and done right to standards. We are truly happy with our new patio doors as they are much easier to open and close and they look good in our home.

The installer(Jesse) and the technician were very knowledgeable and did an excellent job.The cleanup was…
Carol Maddox View Review

The installer(Jesse) and the technician were very knowledgeable and did an excellent job.The cleanup was perfect inside and out. Looking forward to the next part of the project

Did great job!!
Terry Davis View Review

Did great job!!

Sales rep was very knowledgeable. He gave good ideas. Sales rep was very personable.
Gary Koesters View Review

Sales rep was very knowledgeable. He gave good ideas. Sales rep was very personable.

Justen was fantastic, just the perfect personality to put up with two old folks🥰
Marikay Harris View Review

Justen was fantastic, just the perfect personality to put up with two old folks🥰

Very happy with the products and service for my bathtub-to-shower conversion – both sales (Jason) a…
Carol Calhoun View Review

Very happy with the products and service for my bathtub-to-shower conversion – both sales (Jason) and installation by Bernard and Jefferson were top-notch and professional. Installers showed care and cleaned up well.

Absolutely amazing. Not cheap but worth every penny. My salesman Sunny was extremely knowledgeable and a…
Larry View Review

Absolutely amazing. Not cheap but worth every penny. My salesman Sunny was extremely knowledgeable and a pleasure to work with 24 hours later. The install team was here at 8 AM and got Wright to work. Every one of them knew exactly what they were doing and could answer any questions. About six hours later they were done cleaned up extremely well and we did a walk-through and gotta tell you, the leaf guard gutter system is beyond expectations.

I was extremely happy from start to finish. The guy who sold me the windows was very knowledgeable was no…
susan keipert View Review

I was extremely happy from start to finish. The guy who sold me the windows was very knowledgeable was not pushy and did a great presentation. The guys who came to install were very professional and did a great job. And it was all very seamless.

Homeowners Love Working with Great Day

Image
The salesman we dealt with was on time, polite, and personable. He explained the process and answered our…
T LR View Review

The salesman we dealt with was on time, polite, and personable. He explained the process and answered our questions thoroughly. He did not try to upsell and when we ended up removing a couple windows from our order he didn’t pressure to keep them. Once the windows and door are installed I will update the review.

Window and Sliding glass door replacement
melissa garmon View Review

Window and Sliding glass door replacement

The experience that my family had with Champion Replacement Windows of Denver from the beginning to the e…
Karen Campbell View Review

The experience that my family had with Champion Replacement Windows of Denver from the beginning to the end was exceptional from all employees. From the beginning of getting the quotes and measurement to the end of getting the old patio doors replaced was outstanding with communications from Champion staff members via emails, texts, and phone calls to keep us updated with the process of getting the patio doors custom made to the installation process. The install team was truly exceptional as they explained every process on the day of the install and made certain that everything was done properly and done right to standards. We are truly happy with our new patio doors as they are much easier to open and close and they look good in our home.

The installer(Jesse) and the technician were very knowledgeable and did an excellent job.The cleanup was…
Carol Maddox View Review

The installer(Jesse) and the technician were very knowledgeable and did an excellent job.The cleanup was perfect inside and out. Looking forward to the next part of the project

Did great job!!
Terry Davis View Review

Did great job!!

Sales rep was very knowledgeable. He gave good ideas. Sales rep was very personable.
Gary Koesters View Review

Sales rep was very knowledgeable. He gave good ideas. Sales rep was very personable.

Justen was fantastic, just the perfect personality to put up with two old folks🥰
Marikay Harris View Review

Justen was fantastic, just the perfect personality to put up with two old folks🥰

Very happy with the products and service for my bathtub-to-shower conversion – both sales (Jason) a…
Carol Calhoun View Review

Very happy with the products and service for my bathtub-to-shower conversion – both sales (Jason) and installation by Bernard and Jefferson were top-notch and professional. Installers showed care and cleaned up well.

Absolutely amazing. Not cheap but worth every penny. My salesman Sunny was extremely knowledgeable and a…
Larry View Review

Absolutely amazing. Not cheap but worth every penny. My salesman Sunny was extremely knowledgeable and a pleasure to work with 24 hours later. The install team was here at 8 AM and got Wright to work. Every one of them knew exactly what they were doing and could answer any questions. About six hours later they were done cleaned up extremely well and we did a walk-through and gotta tell you, the leaf guard gutter system is beyond expectations.

I was extremely happy from start to finish. The guy who sold me the windows was very knowledgeable was no…
susan keipert View Review

I was extremely happy from start to finish. The guy who sold me the windows was very knowledgeable was not pushy and did a great presentation. The guys who came to install were very professional and did a great job. And it was all very seamless.

Browse Additional Home Remodelers Near Gillette, WY

You can find Great Day services all across the country – including these places nearby.

Questions About Our Home Remodeling in Gillette, WY

What types of home remodeling projects does Great Day offer in Gillette?

We specialize in a wide range of remodeling services, including windows, bathrooms, doors, siding, and more. Every project is managed from design to installation by our in-house experts—no handoffs or subcontractors.

Do you offer financing options for Gillette homeowners?

Absolutely. We offer several flexible financing options to make your home improvement project more affordable. We can work with you to find a plan that fits your budget, including 0% interest plans and extended payment terms. During your consultation, we’ll walk you through the best options for your project goals.

Do your remodeling projects in Gillette come with a warranty?

Yes—all of our products and installations are backed by industry-leading lifetime warranties. We stand confidently behind our work—giving Gillette homeowners peace of mind that their investment is protected for years to come.

What makes Great Day Improvements different from other Gillette contractors?

We’re not general contractors—we’re home remodeling experts who take full responsibility for every phase of your project. Our local knowledge, start-to-finish ownership of the process, and national reputation mean you get personalized service backed by proven brands.

Can I see examples of your work in the Gillette area?

We’re proud to serve the Gillette area and have completed projects across Wyoming. View our online gallery or schedule a free consultation to see all of your design and style options.

How do I get started with Great Day Improvements?

It starts with a free consultation where we listen to your needs, assess your space, and provide expert recommendations. From there, we create a custom plan that works for your home, your budget, and your timeline. Give us a call at (800) 4-GREAT-DAY or fill out our contact form and we’ll schedule your free, in-home consultation at your convenience.

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