Diablo Design Group
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Diablo Design Group
Ever walked into a room that had that "WOW" factor? All it takes is a good eye, years of experience in the industry, and the drive to turn a room into one you'll never want to leave. Since 2000, I've been designing spaces with my creative and professional approach, and helping clients bring life back into their living spaces in the process!

From picking out the right furniture to creating a floor plan that outlines your overall vision, I can do it all at an unbeatable price. As your personal interior designer, I provide expert guidance throughout the whole design process and work closely with you to understand what you want. Call now to schedule a consultation.
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Jan Galletly started moving furniture around her mother's apartment almost as soon as she could walk. Her early passion for interior design led her to a degree from the Fashion Institute of Design & Merchandising in Los Angeles. Jan worked in Interior Design in Southern California for six years before changing gears to pursue a career in technology sales.
Ever since I started working as an interior designer, I've placed my clients' living spaces on the path of transformation through my state-of-the-art designs. I explore every corner of my clients' living spaces to scope out creative possibilities in order to come up with the best use of existing dimensions.
Jan was referred to us. She is fabulous! She really has a good eye for design. She was great to work with, very responsive to our questions and concerns. She recommended the contractor, painters, tile guy, etc, etc. who were very professional and all did a great job. She managed their work and all went well.
Reviews (11)
Diane W.
Diane W.
Jul 11, 2020
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Jan Galletly of Diablo Design Group is fantastic. We needed custom draperies for a rental unit but were under an extreme time crunch and Jan pulled through for us. She is efficient, extremely knowledgeable and an absolute pleasure to work with!
Julie S.
Julie S.
Feb 21, 2020
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A friend recommended Jan when I decided to remodel the upstairs of my home (master, office and guest bathroom). It was a big job that included restructuring the space. I am giddy with how it all turned out. It is comfortable, organized, beautiful and timeless which was exactly what I hoped for. Jan had creative ideas and solutions and worked within my budget. She had great follow-through and was very personable. I highly recommend Jan for amazing decorating style and ideas. I will absolutely work with her again.
Shawn C.
Shawn C.
Dec 01, 2018
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When we moved back to the Bay Area a couple years ago, we decided to move back into our place. However, after nearly 10 years and a couple of renters it needed a serious remodel--floors, kitchen, baths. New to the area and frankly the world of remodel, we needed design advice, contractors, and general guidance.
We found Jan by accident and wow, couldn't have done it without her! She helped us with design, materials, found and contracted all the contractors. She gave us advice, calmed us down on occasion , and drove both us and our contractors until it was done.
Aside from a beautiful
Laura H.
Laura H.
Feb 06, 2018
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Jan came on the scene later in my home remodel process and made a great impact. Initially, I thought I could handle things on my own but I quickly became overwhelmed. Jan was recommended to me by a friend. At our first meeting she was very professional and easy to talk to. She helped me with paint colors, lighting, tile choices, furniture layout, and furniture and rug choices and more. Any issue or challenge I encountered, she would always have a guy or gal for that. The subs she works with are very professional and meet their commitments.
She helped me make smart decisions, the bargain is not
Julie C.
Julie C.
Nov 28, 2017
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In 2016, we reached a point where we either needed to move, or to add another bedroom in our house without being able to add any square footage on our lot.  Because we loved our neighborhood and location, we decided we would rather remodel than to move into another house.  We consulted architects and contractors, and decided that since the family always hung out in the family room, that we should re-purpose the rarely used living room into a bedroom/bathroom, and to simultaneously open up the floor plan to improve the flow and utility of the living spaces.  Essentially, it was a redesign of
Margaret G.
Margaret G.
Jan 20, 2017
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My husband and I started working with Jan 5 years ago. She is very much a "Can do" person with a great eye for what you need. She helped us finish decorating our family room and Master bedroom in Oakland when other decorators left us high and dry. And we loved the results! We have since moved to Alamo where she has helped us in innumerable ways, from bedding to furniture arranging to finally redoing the family room-and once again we love it all.
Jan is talented, friendly, prompt and someone we have recommended to several friends who have also been very happy with her work.
5 Stars for
Stefanie W.
Stefanie W.
Jul 24, 2016
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Jan is amazing and I could not recommend her enough. We found her on Yelp and are so glad that we did. We recently renovated our kitchen. Let's just say that I don't have an "eye" for decorating / planning / envisioning. She helped us to pick countertops, color for our kitchen cabinets and confirmed my hunch for the backsplash. She has a very good eye and terrific ideas.

I also found her to be very generous in giving us the names of her trusted circle of tradespeople, all of whom were great. We used her recommendation for the demolition, countertop installer, painter
Emily R.
Emily R.
May 24, 2016
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I could not recommend Jan more highly! My husband and I bought our first house in Walnut Creek about 1 year ago. Jan had recently designed the 2 bathrooms and Master in the house we bought, and we loved the work so much that we decided to work with her for our minor remodel and major design needs. We came from a much smaller space, so found ourselves with LOTS of furniture needs, and no idea where to start. Enter Jan!

She helped us find our style: Having never furnished a house, we were at a loss of where to start. Jan encouraged us to save magazine clippings, Houzz idea books, etc. We shared
John B.
John B.
Feb 28, 2015
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The best in the business !! Worked with many interior designers over the years, especially in my closet/cabinetry business. Jan is extremely knowledgable, stays connected with her clients and is about the only interior designer that fully understands how contractors work. She is always on target with budget constraints and the ever changing construction schedules that we have to deal with. I know ahead of time when I work with Jan, that the job will go routinely smooth. If you want to work with a seasoned professional interior designer...hands down...she's the one.
Stephanie E.
Stephanie E.
Oct 22, 2014
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We have hired Jan Galletly over the past seven years to do an assortment of interior design/remodeling and decorating jobs at both our home and our office. The jobs have ranged from large scale remodels to something as small as repairing a broken antique dining chair. Jan Galletly has great taste and style, she works quickly and efficiently, the results are high quality and they stand up to the test of time in terms of style and wear, she's pleasant to work with, she stays within the budget, and she's extremely fair and honest about her billing. Her expertise and professionalism can
David L.
David L.
Aug 29, 2014
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My wife and I have worked with Jan for over 20 years and have had her provide consultation and decorator services for several home remodels ranging from bedrooms, bathrooms, kitchen, living room, and even exterior. Most recently, we had Jan help with an entire downstairs remodel inside and out. She provides flawless service and her network of contractor resources saves us the time of finding quality people to help with anything we need. Her taste in design is outstanding. She's not only very timely with her suggestions, but she spends the time to learn our taste and preferences and then comes