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Great Day Crew

We’re your home renovation partner, for life


Great Day Improvements is the company behind trusted home improvement brands like Champion, Leafguard, Patio Enclosures, and more. Together, we offer specialized expertise in windows, gutters, sunrooms, and other home improvement solutions—all backed by one accountable team.

122,000+

5-star reviews

High quality products

Made in USA

Best in class

Lifetime Warranties

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Professional Home Remodeling & Renovation Services

Windows

Refresh your home with professionally installed energy-efficient replacement windows that are custom-fit to add long-term value to your home.

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patio enclosure

Sunrooms and Enclosures

Enjoy more relaxing and entertaining in your outdoor living space with our custom patio enclosures that blend style, functionality, privacy, and durability.

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Siding and Roofing

Protect your home against the elements, elevate its exterior, and increase its energy efficiency with our reliable, weather-tested materials.

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Gutters

Our gutter systems are unlike any other—providing superior design and performance to eliminate clogs and protect your home from water damage.

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Doors

Our trusted team of pros can install custom entry, sliding, patio, storm, and screen doors designed for security, energy efficiency, and personalization.

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Bathrooms

Refresh your bathroom with quick upgrades or full remodels from certified installers that increase the overall value and appeal of your home—modernizing it without the hassle.

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Our Team of Specialized Experts

We’re a team of united brands doing things differently: we’re designing the renovation process around the homeowner. You’re not just hiring a contractor—you’re getting a specialized team of local experts backed by Great Day’s start-to-finish process.

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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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A Better Remodeling Experience with Great Day

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.

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Homeowners Love Working with Great Day

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.

Has been a fantastic experience so far! Joey, our sales rep, was thorough without being pushy & real…
Tracie Fisher View Review

Has been a fantastic experience so far! Joey, our sales rep, was thorough without being pushy & really took the time to understood our priorities and our budget. Great communication at every level. Highly recommend!

My experience was very friendly and knowledgeable about the product and process!I will be telling everyon…
Naomi Gibson View Review

My experience was very friendly and knowledgeable about the product and process!I will be telling everyone about Leafguard!😁

Corey Scott was fantastic, great personality, sensitive to my needs of project I wanted to do but unsure…
Luc P View Review

Corey Scott was fantastic, great personality, sensitive to my needs of project I wanted to do but unsure if feasible. What really made this work was with the help of Vinny Nero who made the numbers work. I’m so looking forward to installation and knowing my home will be protected & maintenance free.

Blake was amazing. He explained how the windows worked, how they were built and the warranty. Really help…
Shane View Review

Blake was amazing. He explained how the windows worked, how they were built and the warranty. Really helpful. Thanks

Homeowners Love Working with Great Day

Image
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.

Has been a fantastic experience so far! Joey, our sales rep, was thorough without being pushy & real…
Tracie Fisher View Review

Has been a fantastic experience so far! Joey, our sales rep, was thorough without being pushy & really took the time to understood our priorities and our budget. Great communication at every level. Highly recommend!

My experience was very friendly and knowledgeable about the product and process!I will be telling everyon…
Naomi Gibson View Review

My experience was very friendly and knowledgeable about the product and process!I will be telling everyone about Leafguard!😁

Corey Scott was fantastic, great personality, sensitive to my needs of project I wanted to do but unsure…
Luc P View Review

Corey Scott was fantastic, great personality, sensitive to my needs of project I wanted to do but unsure if feasible. What really made this work was with the help of Vinny Nero who made the numbers work. I’m so looking forward to installation and knowing my home will be protected & maintenance free.

Blake was amazing. He explained how the windows worked, how they were built and the warranty. Really help…
Shane View Review

Blake was amazing. He explained how the windows worked, how they were built and the warranty. Really helpful. Thanks

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