📍  Serving Sonoma, Napa & Marin

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Timothy is by far the best contractor I've worked with on several remodeling projects. He is professional, reliable, creative, timely and always left the work site as clean as possible. He was also a pleasure to have in our home every day for many months. I highly recommend Alchemy Construction and its owner, Timothy Vinson.
— James Cabral
Tim Vinson and his crew were the finest I have ever used in remodeling projects over many years and many different houses.
They were always on time and left the site clean and all tools put away each day. Problems were dealt with quickly and Tim was on hand every day to supervise and always available by phone for questions.
The 1974 original dreary condo kitchen was transformed into a stunning addition to my bayfront condo in Sausalito. No shortcuts or mistakes.
I highly recommend Building Alchemy, you will not be dissatisfied or disappointed.
— Allison Probst
I have used Timothy Vinson of Building Alchemy for three major renovation projects.  In two cases, these involved working in my home while I was living there.
Timothy is extremely considerate, easy to work with, and incredibly clean and neat!  He gets along extremely well with neighbors and anyone we need to coordinate with.
He takes incredible pride in his work, and the results are of impeccable quality.  He has creative solutions to renovation challenges. I would highly recommend him for anyone who values quality and attention to detail.  I certainly intend to continue using his services when I have the opportunity.
I am happy to discuss in further detail if that would be helpful.

— Pamela M. Wright
I have worked with Timothy Vinson and found his work and his ability to tackle any problem exceptional.  On a very difficult project he was able to translate and execute our design objectives to the fullest extent.  We plan to utilize his services in the future and highly recommend him.
— Scott Couture AIA
Couture Architecture
I have known Timothy Vinson of Building Alchemy for over 20 years, both as a client to him, and as someone that I recommend to my clients.
I believe that it is difficult to find a combination of talent, technical expertise, straightforwardness, clarity, focus and graciousness in one person.  Mr. Vinson managed to excel in all categories.  In addition, Timothy  is an absolute pleasure to work with.  I have been extremely satisfied with the quality , price and timeliness of Timothy’s services and everyone that I have referred has been quite satisfied and had nothing but the highest praise for his abilities
—Beth Brody
Alain Pinel Realtors
My business partner and I hired Tim Vinson to renovate our 10,000 sq ft building in San Francisco to accommodate our lighting production company, Impact Lighting. Tim has great attention to detail, is professional, reliable and is a great collaborator. For either commercial or residential, I would highly recommend Tim's company-- Building Alchemy.
— Terry Ohm
Principal  Ohm Productions
I have hired Building Alchemy on several occasions to perform major remodeling on my property.  Without exception the work has been performed flawlessly, and the costs have been clearly explained, clearly documented, and fair.  Timothy Vinson justifiably takes great pride in his work.  He plans meticulously, works efficiently and always leaves the workspace clean.  He has superior design skills and contributes significantly to achieving our aesthetic objectives.  He is a true professional as a General Contractor.  If you have any questions or would like to see some of Timothy’s work, please call -

— Dennis Leuer
To Whom it may concern....I have had the pleasure of knowing Tim Vinson for approximately 5 years both on a professional and personal level. One word comes to mind and that is Quality. Tim remodeled a very decrepit bathroom in my Marin home. The outcome was truly Magnificent. Throughout the entire project Tim always kept me completely up to date on absolutely every aspect and phase. His estimates were right on and his dedication to the work was second to none. More important to my specific needs was feeling completely comfortable leaving Tim in my home on his own for extended periods of time. He truly is an incredibly responsible and caring individual. I have done extensive work on my home and I have never experienced  anyone so organized and neat. You might say he is quite the "perfectionist".....and the work would back that statement completely. I will definitely have Tim beginning another project late this Spring and I would highly recommend him for yours without any reservation whatsoever....
—Brent Sumja
To Whom It May Concern:

 My husband and I have hired Timothy Vinson of Building Alchemy several times over the last 10 years to do some remodeling projects on our properties. Without exception, all of the work and negotiations on these projects has been very professional. Timothy takes great pride in his work, he listens to what we need and helps us figure out the best solutions within our budget. He is honest, extremely clean and a true professional. I would highly recommend him as a General Contractor.

—David and Shelly Martinez