Top Rated Window Companies Serving Piedmont, CA

Name: Custom Exteriors, Inc.
Address: US
Rating: 4.7

If you really care about choosing a quality window company, we’re here for you. Here’s your access to the best window companies serving Piedmont including 94620. These window experts provide sliding windows and window seal repair, and they also work on picture windows, energy-efficient windows and window insulation. For 22 years we’ve conducted the most accurate ratings and deepest research of local companies, so you’ll be confident in choosing.

Last Updated May 15, 2026
107,620 people sourced companies in Windows
7,904 Verified Windows Customers Surveyed

7,904

107,620

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Custom Exteriors, Inc.

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Custom Exteriors, Inc. makes Bay Area homes beautiful. For 29 years, the company has sold and installed the highest quality replacement windows, entry...

Main Services

Doors

Windows

Additional Services

New Replacement and Energy-Efficient Windows, Fiberglass and Steel Entry Doors, James Hardie Fiber Cement Siding, Exterior Home Design

Brands

Infinity from Marvin, James Hardie, Marvin, ProVia, Therma-Tru

Coverage Areas

Contra Costa County, Alameda County, San Mateo County, Santa Clara County, Marin County, Solano County, San Francisco

Family Owned

Walk-Ins Welcome

Residential Only

Free Quotes & Consultations

Diamond Certified Video Profile

Doors - Custom Exteriors, Inc. - Contra Costa County

Diamond Certified Company Report

Owners Jeff Kendall (L) and Kevin Gundry

Expert Contributions

642
Rating Surveys

19
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(877) 312-3507

Hours CLOSED NOW

License:

785361

Learn how to choose a Windows and more…

Diamond Certified Window Companies Serve These Piedmont ZIP Codes

94620

Diamond Certified Window Companies In Piedmont

Diamond Certified window companies serving Piedmont are rated an average of 4.5 out of 5 stars based on 1355 reviews of 43 rated window companies.
Diamond Certified window companies in Piedmont Avg. Star Rating.

We make you an expert at choosing a high-quality window company in the Piedmont area.

For those who love quality local window companies.

Within our Diamond Certified Resource:

You choose from only top rated Diamond Certified window companies that serve our Piedmont area.
You see each company’s deeply researched report from our research.
You get guidance throughout every phase of hiring a local window company with our Diamond Certified Resource Windows, Coverings and Doors Guide.
You get expert guidance from top rated window companies who are Expert Contributors.
You’re backed by our Performance Guarantee.

You’ll love and refer your friends and family to your new Piedmont area Diamond Certified window company. They provide expert services, including arched windows, fiberglass windows, wood windows, vinyl windows, sliding windows, and more.

To qualify for Diamond Certified, each company must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified window companies that serve Piedmont residents include Custom Exteriors, Inc..

Every Diamond Certified window company that serves residents in 94620 performs various specialties, including bow windows, bay windows, casement windows, double-hung windows, and custom windows.

How to Choose a Quality Piedmont Window Company for Your Family

Click the name of the company to get to their Diamond Certified Company Report page.
Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
Read their verbatim customer survey responses and our researched articles.
Get helpful window tips if they are a Diamond Certified Expert Contributor.
Call or email them to schedule an appointment.

Become a Diamond Certified Preferred Member and Join Your Piedmont Neighbors

If you love quality local companies, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Piedmont was founded in 1870, and today, your 11,367 neighbors enjoy lake exploring, restaurants, lawn bowling, motorcycling and sunbathing. Piedmonters use Diamond Certified window companies for sliding windows, bow windows, window insulation, bay windows, picture windows, and more.

Frequently Asked Questions for Windows in Piedmont, CA

Q: What are customers of Diamond Certified window companies saying about companies in Piedmont, CA?

A: Verified Custom Exteriors, Inc. Customer, 1 of 642
"They gave me good service and understood the technical requirements for the project. They came out and did the work. It was a seamless experience. The owner, Jeff Kendal, is a really nice guy and a pleasure to work with." - Paula E.
All Survey Responses for Custom Exteriors, Inc.

Q: What are some of the most popular brands that Diamond Certified window companies use when working with Piedmont residents?

A: Diamond Certified window companies use top-quality brands like Crystal Windows, Alside, Quaker, Kensington and Amsco Windows.

Q: What types of fiberglass windows do window companies offer?

A: Window companies typically offer a range of window installation options to cater to various needs and preferences. These can include full-frame installation, which involves replacing the entire window including the frame, ideal for severely damaged or old windows. Insert or pocket installation, on the other hand, replaces the window but keeps the existing frame intact, which is a quicker and less invasive process. Other types may include sash replacement, where only the moving parts of the window are replaced, and dual pane or double-glazed window installation, which improves energy efficiency. It's important to note that the type of installation offered can depend on the company and the specific requirements of the property.

Q: Can Diamond Certified window companies work with Andersen products and similar items so I can get sliding windows in Piedmont?

A: Yes, Diamond Certified window companies can work with Andersen products and other similar items to install sliding windows in Piedmont.

Q: What did people search for when they wanted to find the best quality window companies in Piedmont?

A: Window Seal Repair
Fiberglass Windows
Window Insulation
Window Replacement
Window Screen Repair

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View the Full Diamond Certified Guide to Windows, Coverings & Doors