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We’re Lannon’s Home Remodeling Experts

In Lannon, where small-town living meets Wisconsin weather, home renovation needs to be practical and reliable. Great Day Improvements delivers custom solutions that improve comfort, efficiency, and peace of mind.
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Stunning home renovation in Lannon by Great Day Improvements featuring custom brickwork and new energy-efficient windows.

Expert Home Renovation Services in Lannon, WI

Bath Remodeling

Bath Remodeling
Doors

Doors
Gutters

Gutters
Siding

Siding
Sunrooms

Sunrooms
Windows

Windows

SEE PROJECT GALLERIES

Lannon 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 Lannon, WI

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Homeowners Love Working With Great Day

Ken answered all my questions and was a true professional . Will call again.
Mary Gustafson View Review

Ken answered all my questions and was a true professional . Will call again.

Robert was the lead on the repair of a large window for us. He and his crew were respectful to us and eac…
Valerie Salera View Review

Robert was the lead on the repair of a large window for us. He and his crew were respectful to us and each other. They very efficient and made the replacement very easy for us. Great team!

Spoke with Todd and have a great feeling about moving forward with Champion to add a sun room to our hous…
D B View Review

Spoke with Todd and have a great feeling about moving forward with Champion to add a sun room to our house. I will update the review once we complete the contract!

This was a siding job and our 2nd quote. They were very thorough and the price and quality was better. No…
Chris Casey View Review

This was a siding job and our 2nd quote. They were very thorough and the price and quality was better. Noah did a great job of explaining things and being very thorough and respectful of our time and house.

Blake was very informative and pleasant to work with on the purchase of our window replacements. He was a…
Linda Lusk View Review

Blake was very informative and pleasant to work with on the purchase of our window replacements. He was also efficient and helpful on the paperwork. It was a nice experience overall.

Our free consultation with Chris was really nice!! He is very knowledgeable about his products and very p…
Allison Brewster View Review

Our free consultation with Chris was really nice!! He is very knowledgeable about his products and very professional!! Did not rush and answered all our questions. We will be purchasing windows!!

So far this has been a great easy experience. The sales person came out he was very knowledgeable and I c…
Lisa Lipinski View Review

So far this has been a great easy experience. The sales person came out he was very knowledgeable and I can say I really did not want to hear the whole spiel. I just wanted a quote. Well I let him do his spiel and one thing he did was show me the difference in the heat transfer of their window versus others. Since that was the issue that I was dealing with I was extremely impressed. I feel sure now it will make a huge difference in the temperature of the rooms in the house. That demonstration was the actual clincher. So make sure you listen to the spiel and you might just hear the answer to the questions you have in your head going into it.

My service rep was Chris Utley. He had Great customer service and did a wonderful job explaining the inst…
matt lee View Review

My service rep was Chris Utley. He had Great customer service and did a wonderful job explaining the installation process.

Easy process and the windows came faster than they estimated. Installation was really smooth. They did a…
Brianna Anderson View Review

Easy process and the windows came faster than they estimated. Installation was really smooth. They did a great job and would recommend to anyone looking to replace windows.

Cade was great and explained everything in detail.
Terry Cook View Review

Cade was great and explained everything in detail.

Homeowners Love Working with Great Day

Image
Ken answered all my questions and was a true professional . Will call again.
Mary Gustafson View Review

Ken answered all my questions and was a true professional . Will call again.

Robert was the lead on the repair of a large window for us. He and his crew were respectful to us and eac…
Valerie Salera View Review

Robert was the lead on the repair of a large window for us. He and his crew were respectful to us and each other. They very efficient and made the replacement very easy for us. Great team!

Spoke with Todd and have a great feeling about moving forward with Champion to add a sun room to our hous…
D B View Review

Spoke with Todd and have a great feeling about moving forward with Champion to add a sun room to our house. I will update the review once we complete the contract!

This was a siding job and our 2nd quote. They were very thorough and the price and quality was better. No…
Chris Casey View Review

This was a siding job and our 2nd quote. They were very thorough and the price and quality was better. Noah did a great job of explaining things and being very thorough and respectful of our time and house.

Blake was very informative and pleasant to work with on the purchase of our window replacements. He was a…
Linda Lusk View Review

Blake was very informative and pleasant to work with on the purchase of our window replacements. He was also efficient and helpful on the paperwork. It was a nice experience overall.

Our free consultation with Chris was really nice!! He is very knowledgeable about his products and very p…
Allison Brewster View Review

Our free consultation with Chris was really nice!! He is very knowledgeable about his products and very professional!! Did not rush and answered all our questions. We will be purchasing windows!!

So far this has been a great easy experience. The sales person came out he was very knowledgeable and I c…
Lisa Lipinski View Review

So far this has been a great easy experience. The sales person came out he was very knowledgeable and I can say I really did not want to hear the whole spiel. I just wanted a quote. Well I let him do his spiel and one thing he did was show me the difference in the heat transfer of their window versus others. Since that was the issue that I was dealing with I was extremely impressed. I feel sure now it will make a huge difference in the temperature of the rooms in the house. That demonstration was the actual clincher. So make sure you listen to the spiel and you might just hear the answer to the questions you have in your head going into it.

My service rep was Chris Utley. He had Great customer service and did a wonderful job explaining the inst…
matt lee View Review

My service rep was Chris Utley. He had Great customer service and did a wonderful job explaining the installation process.

Easy process and the windows came faster than they estimated. Installation was really smooth. They did a…
Brianna Anderson View Review

Easy process and the windows came faster than they estimated. Installation was really smooth. They did a great job and would recommend to anyone looking to replace windows.

Cade was great and explained everything in detail.
Terry Cook View Review

Cade was great and explained everything in detail.

Browse Additional Home Remodelers Near Lannon, WI

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

Questions About Our Home Remodeling in Lannon, WI

What types of home remodeling projects does Great Day offer in Lannon, WI?

We specialize in a wide range of remodeling services, including sunroom additions, window and door replacements, bathrooms, gutters, 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 Lannon, WI 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 will walk you through the best options for your project goals.

Do your remodeling projects in Lannon, WI 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 Lannon, WI homeowners peace of mind that their investment is protected for years to come.

What makes Great Day Improvements different from other Lannon, WI 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 Lannon, WI area?

We’re proud to serve the Greater Milwaukee, WI area and have completed projects in Cudahy, Elm Grove, Waukesha, Menomonee Falls, and even more across Wisconsin. 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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