ADU Garage Conversion Contractor in Northern California
Turn your unused garage into a fully livable space with a trusted ADU garage conversion contractor. Sidex helps you unlock hidden value, without expanding your home’s footprint.
4.9/5 rating from 56+ online reviews.
Your Garage Has More Potential Than You Think
Most garages end up as storage. Boxes, tools, things you barely use. Meanwhile, you’re short on space inside your home. That’s where a smart garage conversion ADU contractor comes in.
A garage conversion turns what you already have into something valuable; a rental unit, a private guest suite, a home office, or a comfortable space for family. It’s one of the fastest and most cost-effective ways to add living space because the structure is already there.
As experienced garage conversion builders, we don’t just remodel, we reimagine. We make sure your new space feels like a real home, not a converted garage.
Complete Garage Conversion Services
Full Garage to ADU Conversion
As a trusted garage ADU contractor, we take care of insulation, plumbing, electrical, flooring, and everything in between.
Custom Layout & Interior Design
Our garage conversion builders design layouts that maximize space, light, and comfort, so your new unit feels open, not cramped.
Permits & Code Compliance
Garage conversions must meet local building codes. As an experienced ADU garage builders team, we manage permits, zoning requirements, and inspections.
Built with Precision, Designed for Real Living
Explore our projects to see how we build functional, durable, and visually seamless structures across Northern California.
How We Convert Your Garage into a Livable Space
Site Evaluation & Feasibility
We assess your garage structure, utilities, and layout to determine what’s possible and what will work best.
Step 1
Design & Planning
We create a functional layout that transforms your garage into a comfortable living space while meeting all building requirements.
Step 2
Construction & Conversion
Our team handles everything, from structural upgrades to finishes, ensuring your garage conversion builder project is done right the first time.
Step 3
Final Inspection & Handover
We complete inspections, finalize details, and deliver a fully ready-to-use ADU space.
Step 4
Garage Conversion Builders Across Northern California
We provide expert garage conversion builder services across key regions, serving over 57 locations.
The Bay Area
From San Francisco to San Jose, we help homeowners turn garages into high-value living spaces in dense urban areas.
South Lake Tahoe
We build insulated, weather-ready conversions designed for colder climates and year-round comfort.
Sacramento Region
Serving Sacramento and nearby areas, we deliver practical, cost-effective garage ADU solutions for growing households and rental income.
Garage Conversion FAQs
What is a garage conversion ADU?
It’s when an existing garage is converted into a fully livable unit, often used as an ADU (Accessory Dwelling Unit).
Is converting a garage cheaper than building an ADU from scratch?
In many cases, yes. Since the structure already exists, a garage conversion ADU contractor can help reduce overall costs.
Do I need permits for a garage conversion?
Yes. All conversions must meet local building codes. A professional garage ADU contractor will handle permits and approvals.
Can I still use part of my garage for storage?
In some designs, yes. It depends on layout and space availability.
How long does a garage conversion take?
Timelines vary, but most projects take a few weeks to a couple of months depending on complexity.
Trustindex verifies that the original source of the review is Google.
Elizabeth Neilsen2024-07-15We needed some deck repairs and had Sidex out to give us a bid and suggestions. Best choice ever. They spent time to evaluate necessary repairs and gave us estimates. Contracted for the work. Workers were great. Very efficient and tidy. So happy with the results. Thank you Sidex. ❤️Trustindex verifies that the original source of the review is Google.Sruthi gn2024-06-15Thank you Sidex for an excellent work. They built our 12x12 deck in one day. Such a great team. We enjoyed the work .Trustindex verifies that the original source of the review is Google.Joshua K2024-06-02I recently had my dock replaced by Sidex Siding and Decking, and we couldn't be happier with how it turned out! I reached out to Andrey, and he and his team did an amazing job from start to finish. They listened to our vision for the dock, sourced high-quality materials, and maintained excellent communication throughout the process. The entire project was completed within a week, and the workmanship is outstanding. We are thrilled with how it turned out and would highly recommend Sidex Siding and Decking to anyone. Thank you, Andrey and team, for your exceptional work!Trustindex verifies that the original source of the review is Google.Rand Martin2024-05-16Excellent and meticulous work.Trustindex verifies that the original source of the review is Google.Barry Cohen2024-05-14Andrey and his team repaired a fence for me recently and I could not be happier with the work. I know he went out of his way to keep on schedule to do that work on the day upon which we agreed even though it was inconvenient for him. The team arrived on time, did the work efficiently and I believe for a reasonable price. The end product, the repair, was excellent. I would use this company again.Trustindex verifies that the original source of the review is Google.Nicole2024-05-13I am ???? grateful for this wheelchair ramp. They worked so hard to get it done in one day, so I could take my brother to the doctor by myself without using medical transportation. This is the first company that heard my needs and made it happen. I recommend Andrey! They are gentle, kind, and professional. Outstanding!Trustindex verifies that the original source of the review is Google.Elisey Borisov2024-05-09Thank you Sidex. Great team, easy to work with. Customer service was outstanding, answered all of my questions quickly, made me feel comfortable throughout all stages of the process. Great job guys, with new windows and siding my house looks brand new!Trustindex verifies that the original source of the review is Google.Any Way Moving2024-05-09I recently had the pleasure of hiring Sidex for siding installation on my home, and I couldn't be more impressed with the results. From start to finish, the entire process was seamless and professional. Firstly, the team at Sidex demonstrated excellent communication skills, promptly addressing all my inquiries and concerns. They provided a detailed quote outlining the scope of work and timeline for completion, which was very helpful in setting expectations. When it came to the installation itself, the craftsmanship exhibited by the crew was outstanding. They worked diligently, paying close attention to detail to ensure a flawless finish. The siding not only looks beautiful but also feels sturdy and durable, providing added protection to my home. Moreover, the project was completed within the agreed-upon timeframe, without any delays or unexpected issues. The crew was respectful of my property, keeping the work area clean and tidy throughout the process. Overall, I am beyond satisfied with the quality of work delivered by Sidex. Their expertise, professionalism, and attention to detail have truly transformed the exterior of my home. I would highly recommend their services to anyone in need of siding installation or any other home improvement projects.Trustindex verifies that the original source of the review is Google.Ariel Hernandez2024-05-09Absolutely killed it! From our first interaction, and up to the final moments of the project they showed true professionalism and good quality work with a smile on their face! I couldn’t recommend a better company, thank you!Trustindex verifies that the original source of the review is Google.Angel Solis2024-05-09Trusted company. Whatever your needs maybe be, regarding siding and decking, be sure that you can you trust Sidex.
