Windows Unlimited

Business Details

Expert Window and Door Replacement Services in Belmont, CA

With over four decades of specialized expertise in window and door solutions, we serve as trusted advisors and installers for luxury homeowners across the San Francisco Bay Area. Our team combines deep industry knowledge with hands-on experience to deliver tailored solutions that enhance energy efficiency, security, and aesthetic appeal. As a licensed, bonded, and EPA Lead Safe certified company, we prioritize safety and compliance while maintaining rigorous quality standards.

Our partnerships with premium brands like Fleetwood and Marvin ensure access to cutting-edge products, and our comprehensive consultation process guarantees personalized guidance from selection to flawless installation. Our Belmont showroom offers hands-on exploration of materials and designs, while our 40+ years of local market understanding enables precise adaptation to regional building codes and climate considerations.

Services

Window Replacement Door Installation Expert Service Showroom Consultation Portfolio Projects

Highlights and features

40+ years of specialized window and door industry expertise
Licensed, bonded, and EPA Lead Safe certified professionals
Personalized consultation and installation guidance process
Authorized dealer for luxury brands like Fleetwood and Marvin
Local Bay Area building code and climate expertise

Associations and certifications

EPA Lead Safe Certified

Website

Update Listing

Services

Window Replacement

Transform your home with energy-efficient window replacements that enhance comfort and reduce utility costs. Our expert installation of premium brands like Fleetwood and Marvin improves insulation while maintaining aesthetic appeal. Serving Bay Area homeowners with customized solutions that address noise reduction and climate-specific requirements.

Door Installation

Upgrade entryways with durable, stylish door installations that boost curb appeal and security. We offer comprehensive selection from luxury brands, including sliding glass and custom wood options. Our precise installation ensures proper sealing and long-term functionality tailored to Bay Area building standards.

Showroom Consultation

Explore premium window and door options firsthand at our Belmont showroom. Our specialists provide personalized guidance through material, style, and finish selections. Experience product demonstrations and receive expert recommendations to match architectural needs with performance requirements for residential properties.

People

Jim

Owner

With over 40 years in the window and door industry, Jim oversees all projects personally. His expertise in Bay Area construction challenges and commitment to client satisfaction ensure quality installations that exceed expectations while maintaining strict safety standards.

Questions

What areas do you serve?

We serve the entire San Francisco Bay Area including San Francisco, San Mateo, Palo Alto, San Jose, and surrounding communities.

Are you licensed and insured?

Yes, we hold CSLB License #427964 and are fully bonded with EPA Lead Safe certification for safe, compliant installations.

What brands do you work with?

We're authorized dealers for premium brands including Fleetwood, Marvin, Simonton, Velux, and IWC windows and doors.

Do you offer consultations?

Yes, we provide comprehensive in-home consultations and showroom visits to help select optimal window and door solutions.

How long does installation take?

Most window and door replacements complete within 1-3 days depending on project scope and custom order availability.

Reviews (5)

Write a Review

Maria Contente

Mar 12, 2022 Report

We absolutely loved working with Mr. Jim Fowler, him and his crew are incredibly professional, they do a fine job and once the materials arrived - everything went very smoothly. See pic, we are madly in love with our Fleetwood windows! The inspection went smooth bc they did a very fine job!

Gavin C.

Jan 28, 2018 Report

Windows Unlimited is not just a company for windows but also for doors. My french doors were leaking really bad due to improper installation from the original builder. Got several quotes from different companies and talked to a few business owners; I can certainly tell that Jim from Windows Unlimited is the most sincere, honest, and knowledgeable one among them. Chris and his team worked on replacing the doors and did a fantastic job.

They are very professional and always keep the job site clean. I waited almost a year to leave this review because I wanted to see how the new doors hold up. So far I am very satisfied with the new french doors and workmanship provided by Windows Unlimited.

Csaba H.

Nov 10, 2016 Report

If you need windows replacement, Windows Unlimited is the place to go. I worked with Jim about three years ago. We had to retrofit the old, single pane windows on our house with new, double pane windows. We also enlarged some of the windows. Jim and his team was very professional. The quotes were detailed and easy to follow. Jim was the only contractor who was willing to quote a mix of two types a Milgard windows and was able to deliver those. He and his team did a great job and finished within the budget. Three years later, the windows installed by Jim still work perfectly.

Maria R.

Mar 22, 2016 Report

I have been working with Jim on a number of projects, always very helpful and honest. Great prices, superior service, I will be back for sure

D. H.

Apr 23, 2015 Report

Windows Unlimited is fastastic! We had a delamination arise with one of our double paned windows installed by a different contractor 15 years ago. Jim from Windows Unlimited came out to inspect it and got enough information to contact the agent for the window manufacturer. Turns out the manufacturer will replace the window at NO COST. Jim refused to take any payment for his involvement and time. He provided outstanding responsiveness and customer service.