Independently Rated Highest in Quality
T h i r d                              Consecutive Year        
Originally Earned:
December 2007
We declare that Theo De Friese & Sons Inc. HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #1197
(650) 401-7160
724 So. Amphlett Blvd.
San Mateo, CA 94402

Not many people have been around long enough to remember a time when Theo De Friese & Sons, Inc. didn't exist. In 1954, Don De Friese took over ownership of the business that his father founded in 1920. It's a true family business, with Don and two of his brothers providing product knowledge, excellent workmanship and complete service that De Friese & Sons has been known for for over 85 years.

The San Mateo-based company specializes in custom-crafted wood shutters, both interior and exterior. They also provide custom room dividers, folding doors and other related products. They also offer a full line of alternate window coverings from nationally known manufacturers and local fabricators. From blinds and shades to draperies and cornices, they've got you covered! They can help you select the best window coverings for your needs. Help you select colors, materials and styles that will appeal to both your design sense and your pocketbook. No matter what the job, you can count on them to provide quality products and services at competitive prices. Brands we offer are Hunter Douglas, Graber Window Fashions, Insolroll Shades and Horizions Window Coverings.

 

Company Philosophy

"What makes us different from other window covering experts? It's the knowledge that comes from decades of doing business. It's the personal relationships we form with our customers. And it's the fact that our primary goal is to always give the customer exactly what they want and not walk away from the job until they're completely satisfied. There's no way we would have stayed in business this long if we weren't doing a lot of things right.""What makes us different from other window covering experts? It’s the knowledge that comes from decades of doing business. It’s the personal relationships we form with our customers. And it’s the fact that our primary goal is to always give the customer exactly what they want and not walk away from the job until they’re completely satisfied. There’s no way we would have stayed in business this long if we weren’t doing a lot of things right.”

Serving Northern California

A Full Service Window Coverings Co.
Measuring and Installations Services
Shutter Repairs for Wood & Vinyl
Shutter Re-Painting and Re-Staining
Interior and Exterior Shutters
New Blinds and Shades - All Materials
Repair of Blinds and Shades
New Draperies and Cornice Boxes
Drapery Repairs and Alterations
Designer Services

Map

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Findings based on statistically reliable research from 125 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
93%
n = 125

Diamond Certified Qualification

Based on 125 customer surveys, we declare
Theo De Friese & Sons Inc.
has passed all rating steps and has earned
The Diamond Certified Award
No. 1197
Continuously qualified since December 2007.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

"They had a great product, but if there were any problems, they handled it. I would highly recommend them to everyone."

–E.A.

"Don knew exactly what I wanted and how to do it. He's an old-timer who knows how to handle difficult customers."

–Richard B.
Research conducted by American Ratings Corporation. Ratings Methodology

Company Capabilities Table

Theo De Friese & Sons Inc.
724 So. Amphlett Blvd.
San Mateo, CA 94402
(650) 401-7160
(800) 300-3494
(650) 401-7162 fax

Mon - Fri: 8am - 6pm
Evenings, Saturdays & Showroom:
By Appointment Only

Serving Northern California
734033
Liability Insurance, Worker's Compensation

Palm Beach Shutter Installations Certified by Hunter Douglas

Don De Friese - Owner Scott Wirch - Sales & Service