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We’re San Jose’s Home Remodeling Experts

San Jose homeowners expect comfort and efficiency in a changing climate. Great Day Improvements offers home renovation and remodeling solutions designed for energy performance, modern living, and lasting value—helping Silicon Valley homes work smarter every day.
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Elegant courtyard-style entry with updated front door, windows, and exterior finishes, remodeled by Great Day Improvements to create a refined and inviting entrance.

Expert Home Renovation Services in San Jose, CA

Bath Remodeling

Bath Remodeling
Siding

Siding
Windows

Windows

SEE PROJECT GALLERIES

San Jose 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 San Jose, CA

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Homeowners Love Working With Great Day

I thought they were a little expensive. Presentation was good and don’t doubt windows are great but…
matt diehl View Review

I thought they were a little expensive. Presentation was good and don’t doubt windows are great but still thought it was a little high

Bron was spectacular
Dan Holman View Review

Bron was spectacular

Jeremy Gattenby was excellent. He deserves at least 5 stars
Joey Edens View Review

Jeremy Gattenby was excellent. He deserves at least 5 stars

fantastic job cleaned up after done Glen Nate was very friendly
Robert Anderson View Review

fantastic job cleaned up after done Glen Nate was very friendly

Honest and up front. Easy contracting agreement. Great warranty.
Gina Clark View Review

Honest and up front. Easy contracting agreement. Great warranty.

John Henkel drove over an hour all the way out to my house and was very nice. He did not pressure me into…
Jennifer Brown View Review

John Henkel drove over an hour all the way out to my house and was very nice. He did not pressure me into buying anything more than I needed. He was very friendly with my big dog too. I highly recommend this company, specially John, for any window or door replacements. I will be a returning customer

I’ve been a Champion customer for 25+ years. I highly recommend that you ask for Jason Trammel as y…
Rena Vallejo View Review

I’ve been a Champion customer for 25+ years. I highly recommend that you ask for Jason Trammel as your factory representative. He is straight up honest, and more than fair. I enjoyed doing business with him. Should I need future work from champion, he will definitely be the one I call. I highly recommend you do the same.

Scott R came to our house and did a wonderfully detailed presentation regarding the quality and reputatio…
Jamie Ail View Review

Scott R came to our house and did a wonderfully detailed presentation regarding the quality and reputation of champion windows. He was able to meet our expectations in terms of pricing options and amount windows. We are thrilled and excited to go with this company. One of the windows is really important because it’s going to be in our nursery- I feel confident the space will have better more stable temps based on the quality of these windows. Looking forward to install!

Brady is extremely knowledgeable. He answered every question we had. His demonstration solidified WHY we…
Gretchen McIntosh View Review

Brady is extremely knowledgeable. He answered every question we had. His demonstration solidified WHY we were looking at Champion to begin with. After speaking with him, it was clear we were his newest customers. Five stars!

Braden was completely professional and did not pressure us at all. The product speaks for itself and we a…
Clark McIntosh View Review

Braden was completely professional and did not pressure us at all. The product speaks for itself and we are happy to be Chanpion customers.

Homeowners Love Working with Great Day

Image
I thought they were a little expensive. Presentation was good and don’t doubt windows are great but…
matt diehl View Review

I thought they were a little expensive. Presentation was good and don’t doubt windows are great but still thought it was a little high

Bron was spectacular
Dan Holman View Review

Bron was spectacular

Jeremy Gattenby was excellent. He deserves at least 5 stars
Joey Edens View Review

Jeremy Gattenby was excellent. He deserves at least 5 stars

fantastic job cleaned up after done Glen Nate was very friendly
Robert Anderson View Review

fantastic job cleaned up after done Glen Nate was very friendly

Honest and up front. Easy contracting agreement. Great warranty.
Gina Clark View Review

Honest and up front. Easy contracting agreement. Great warranty.

John Henkel drove over an hour all the way out to my house and was very nice. He did not pressure me into…
Jennifer Brown View Review

John Henkel drove over an hour all the way out to my house and was very nice. He did not pressure me into buying anything more than I needed. He was very friendly with my big dog too. I highly recommend this company, specially John, for any window or door replacements. I will be a returning customer

I’ve been a Champion customer for 25+ years. I highly recommend that you ask for Jason Trammel as y…
Rena Vallejo View Review

I’ve been a Champion customer for 25+ years. I highly recommend that you ask for Jason Trammel as your factory representative. He is straight up honest, and more than fair. I enjoyed doing business with him. Should I need future work from champion, he will definitely be the one I call. I highly recommend you do the same.

Scott R came to our house and did a wonderfully detailed presentation regarding the quality and reputatio…
Jamie Ail View Review

Scott R came to our house and did a wonderfully detailed presentation regarding the quality and reputation of champion windows. He was able to meet our expectations in terms of pricing options and amount windows. We are thrilled and excited to go with this company. One of the windows is really important because it’s going to be in our nursery- I feel confident the space will have better more stable temps based on the quality of these windows. Looking forward to install!

Brady is extremely knowledgeable. He answered every question we had. His demonstration solidified WHY we…
Gretchen McIntosh View Review

Brady is extremely knowledgeable. He answered every question we had. His demonstration solidified WHY we were looking at Champion to begin with. After speaking with him, it was clear we were his newest customers. Five stars!

Braden was completely professional and did not pressure us at all. The product speaks for itself and we a…
Clark McIntosh View Review

Braden was completely professional and did not pressure us at all. The product speaks for itself and we are happy to be Chanpion customers.

Browse Additional Home Remodelers Near San Jose, CA

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

Questions About Our Home Remodeling in San Jose, CA

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

We specialize in a wide range of remodeling services, including windows, bathrooms, 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 San Jose 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 San Jose 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 San Jose homeowners peace of mind that their investment is protected for years to come.

What makes Great Day Improvements different from other San Jose 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 San Jose area?

We’re proud to serve the Greater San Jose area and have completed projects across California including in San Francisco, Sacramento, Oakland, Stockton, and more. 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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