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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Capstone Windows & Doors

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United States
Phoenix, AZ
Capstone Windows & Doors

We are the premier destination for window & door replacement in Phoenix. Exclusively selling and installing, Infinity from Marvin!

Capstone Windows & Doors understands that customer satisfaction is what determines the success of their business, which is why they take a hands-on approach for every project. This locally owned family business has an experienced staff of industry experts, and the company owner provides a personal visit for every installation. Their goal is to transition your great views to AMAZING through quality

window installation. Capstone Windows & Doors offers a combination of top-notch industry knowledge with extensive practical experience. This ensures a specialized approach for your home improvement projects. A range of quality products is offered, including the trusted name brands: Infinity by Marvin windows and doors. The team is prepared to assist with new window installation, as well as window replacement as needed. A variety of materials can be selected for the specialty windows installation, such as fiberglass and energy efficiency features. Many styles are offered, including bi-folding patio doors, sliding doors, French doors, and more. What makes Capstone Windows & Doors unique? The team prioritizes the principles of timely completion, quality work, and integrity. These values, paired with competitive pricing, ensure excellent outcomes in all of their business dealings. Not only does the staff offer the highest levels of care for every customer, but they have solid business relationships with manufacturers and suppliers. Additionally, every project is carefully designed with materials that offer long-term durability in the tough Arizona climate. The team at Capstone Windows & Doors specializes in both window and door installation. They promise a custom approach for all customers, ensuring your satisfaction every step of the way. These services are offered in all of the surrounding cities: Scottsdale, Phoenix, Gilbert, Chandler, and Fountain Hills. A range of services is offered: everything from high-end installations to budget solutions. Capstone Windows & Doors is always available to answer questions and assist customers in designing personalized installation plans. Visit the nearby windows and doors showroom to view available products and materials: 3837 E Wier Ave Ste 4 Phoenix, AZ 85040. Or, call the office at your convenience to schedule a free in-home consultation and estimate for the work that is needed: (480) 800-8444.

11/09/2021

We are changing our name!

SI Windows - Phoenix is now Capstone Windows & Doors.

08/20/2019

We’d like to take a moment to thank our local independent partners, whose hard work and dedication to providing an exceptional customer experience made it possible for Infinity from Marvin to be ranked #1 in customer satisfaction.

Click here for more information on the J.D. Power Award: https://www.infinitywindows.com/satisfaction

06/04/2019

Considering vinyl or composite replacement windows & doors?

Upgrade to INFINITY from MARVIN Ultrex Fiberglass frames!

The PERFECT window material for Arizona summers! Ultrex is as strong as steel & 3.5x stronger then composite frames, doesn't conduct heat like metal frames, and expands 833% less than vinyl framed windows & doors. Get your windows & doors replaced NOW and pay next year with 12 months SAC.

Call us today to schedule your consultation! (480) 382-2025

05/23/2019

Get New Windows Installed Now, Pay Next Year!!!

With our 12 month Same-as-Cash program (OAC), you don’t have to put off your project until next year. Keep that sizzling heat outside and enjoy reduced energy bills.

Call today for a consultation, 480.382.2025! ROC #323748.

04/23/2019

40% Off Replacement Windows & Doors!

For every window you purchase, get 40% off the second window. The heat is coming, take advantage of this sizzling deal!

Schedule you consultation today! (480) 382-2025. ROC #323748

04/12/2019

Suffer no longer!

The only real solution to the heat gain from your metal framed windows & doors is to replace them. You will have the coolest windows in your neighborhood.

Call us today to schedule your hassle-free consultation at (480) 382-2025. ROC #323748

04/02/2019

Sizzeling deals right now! Get your new windows & doors installed before the summer heat!

Call us at (480) 382-2025 to schedule your no-pressure consultation.

ROC #323748

03/26/2019

THE COOLEST WINDOWS & DOORS IN PHOENIX!

It’s now time! With spring break wrapping up, the summer heat is on the way. There is no better way to help climatize your home then get rid of these inefficient heat conducting aluminum framed windows & door. Get amazing deals right now on the most scientifically tested window for our harsh summer climate, INFINITY from MARVIN. If you have a great backyard, you won’t have to hide it with sunscreens, blinds, and shutters to keep the heat out!

Give us a call at (480)382-2025 or send us a message!

ROC #323748

02/02/2019

Considering vinyl or composite replacement windows & doors?

Upgrade to INFINITY from MARVIN Ultrex Fiberglass frames!

The PERFECT window material for Arizona summers! Ultrex is as strong as steel & 3.5x as strong as composite frames, doesn't conduct heat like metal frames, and expands 833% less than vinyl framed windows & doors.

Save 20% now and get windows in before summer.

Call today for a no-pressure hassle-free consultation, (480)382-2025

Address

5448 E Washington Street Suite 5
Phoenix, AZ
85034

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+14808008444

Website

https://www.capstonephoenix.com/

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Our Story

SI Windows – Phoenix understands that customer satisfaction is what determines the success of their business, which is why they take a hands-on approach for every project. This locally owned family business has an experienced staff of industry experts, and the company owner provides a personal visit for every installation. Their goal is to transition your great views to AMAZING through quality window installation. SI Windows – Phoenix offers a combination of top-notch industry knowledge with extensive practical experience. This ensures a specialized approach for your home improvement projects. A range of quality products is offered, including the trusted name brands: Infinity by Marvin windows and doors. The team is prepared to assist with new window installation, as well as window replacement as needed. A variety of materials can be selected for the specialty windows installation, such as fiberglass and energy efficiency features. Many styles are offered, including bi-folding patio doors, sliding doors, French doors, and more. What makes SI Windows – Phoenix unique? The team prioritizes the principles of timely completion, quality work, and integrity. These values, paired with competitive pricing, ensure excellent outcomes in all of their business dealings. Not only does the staff offer the highest levels of care for every customer, but they have solid business relationships with manufacturers and suppliers. Additionally, every project is carefully designed with materials that offer long-term durability in the tough Arizona climate. The team at SI Windows – Phoenix specializes in both window and door installation. They promise a custom approach for all customers, ensuring your satisfaction every step of the way. These services are offered in all of the surrounding cities: Scottsdale, Phoenix, Gilbert, Chandler, and Fountain Hills. A range of services is offered: everything from high-end installations to budget solutions. SI Windows – Phoenix is always available to answer questions and assist customers in designing personalized installation plans. Visit the nearby windows and doors showroom to view available products and materials: 3837 E Wier Ave Ste 4 Phoenix, AZ 85040. Or, call the office at your convenience to schedule a free in-home consultation and estimate for the work that is needed: (480) 382-2025.