This Business Is Not BBB Accredited

Duet Design & Build LLC

Duet Design & Build LLC

(425) 246-3266

Duet Design & Build LLC

23 years in business
10216 NE 122nd St
Kirkland, WA 98034-3805
Fax Numbers
  • (425) 824-4620
Additional Email Addresses
BBB File Opened: 09/14/2011
Business Started: 10/21/1993
Business Started Locally: 10/21/1993
Business Incorporated: 02/17/2014 in WA
Type of Entity
Limited Liability Company
Business Management
  • Mr. Derek Paul Sitzmann, Partner/Member
  • Ms. Lynn R Sitzmann, Partner/Member
Business Category
  • Design & Build Contractor
  • Kitchen & Bath - Design & Remodeling
  • Kitchen & Bath Design
  • Building Restoration & Preservation
  • Contractors - General
  • Basement - Finishing
  • Home Improvements - Additions
  • Remodeling Services
  • NAICS: Residential Remodelers
  • Home Design & Planning
  • Interior Designers - Architectural
  • Exterior Designers

Additional Information
  • According to Washington Secretary of State and information in BBB files, Derek Sitzmann is a principal of several companies in Washington. Separate BBB Business Reviews are available for these companies. Duet Design & Build LLC:

Service Area
This company services the state of Washington.
Alternate Business Names
  • Duet Design and Build LLC
Licensing, Bonding or Registration
This business is in an industry that may require professional licensing, bonding or registration. BBB encourages you to check with the appropriate agency to be certain any requirements are currently being met.



This company offers construction and remodeling services.

BBB Reason for Ratings

BBB rating is based on 13 factors: Get the details about the factors considered.

Monday - Friday 8:00am - 4:30pm
Licensing information is provided in the BBB Business Profiles to inform the public about industries that may require professional licensing, bonding, or registration. Better Business Bureau encourages you to check with the appropriate agency to be certain any requirements are currently being met.
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BBB reports on known significant government actions involving the business's marketplace conduct.
BBB reports on a company that is out of business for three years from the date the company closes its doors or ceases to do business.
BBB reports on unauthorized use of the Better Business Bureau's name and/or logo for as long as the business continues to use it in any advertising, or for one year after the business ceases any repeated unauthorized uses.
BBB reports on a business’s bankruptcy as long as the business remains in bankruptcy.
BBB reports when mail sent to the business was returned by the Postal Service.

Duet Design & Build LLC


Duet Design & Build LLC

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