Transform Your Property with a Custom ADU by Ground Up Builders!
Looking to maximize your property’s potential? Discover the endless possibilities with a custom-built Accessory Dwelling Unit (ADU) by Ground Up Builders! Whether you need extra space for family, a home office, or a rental income opportunity, we’ve got you covered.
Experience peace of mind with our expert ADU Builders. With 16 years in your neighborhood and a clean license since 2008, we guarantee 100% customer satisfaction. Many clients return for their 2nd and 3rd projects, and our previous customers are happy to show you their transformed spaces. Enjoy custom designs, quality craftsmanship, and efficient processes. Contact us today for a free consultation!
EXCELLENT Based on 178 reviews Nora S.October 21, 2025Verified We've worked with Uzi and the Ground Up Builders team on a number of projects in our home -- from gut renovations of two bathrooms to opening up walls in our kitchen, installing new lighting and electrical, mold remediation, and refinishing all the floors in the house. Oh! And when we had an emergency plumbing situation a week after moving in having nothing to do with his work, Uzi sent his team immediately to help. While Uzi is incredibly capable with major renovations, he approaches even the smallest jobs with the same level of care. Truly, no job is too big or too small for him. Uzi is smart, thoughtful, patient, and deeply experienced-- he's like a walking encyclopedia -- he has answers to everything! He's also an amazing communicator -- always available, always willing to explain every step. We're not the easiest clients (we're very particular and even more indecisive!), but Uzi never once made us feel rushed or like we were a burden. He always walked us through every option and every choice. His team of painters, tile installers, plumbers, handymen, and more -- are all so kind, skilled, professional, and respectful-- always putting on booties before entering and cleaning up after themselves when they finished. We always felt comfortable with the Ground Up team in our home. We appreciate Uzi more than we ever thought it was possible to appreciate a contractor. In short, we recommend him and Ground Up without hesitation. KC B.September 26, 2025Verified I had the privilege of working with Jacob and his team. He is incredibly dedicated and personally invested in his work. He truly listens, communicates with care, and pays attention to every detail. He and his team are meticulous, thoughtful, and hardworking, while also being very respectful of the home and space. They're not only trustworthy but also genuinely kind and caring--it felt like a real personal and collaborative relationship throughout the process. I highly recommend. Heather C.September 25, 2025Verified We needed to remove a bath/shower tile surround to re-waterproof and retile, and replace the fixtures. We went with GUB after getting their name from a tile vendor and meeting with more than one alternative. GUB were the most expensive by far but also were the most responsive and had the most professional and comprehensive bid. All of the legal paperwork and their license information was included, along with a detailed scope of work and examples of past work. Adi Aiish was our Field Manager. He's friendly and very responsive and our overall impression was that the additional cost would be worth it to have a professional job. To be succinct, here are the pros and cons from the project: Pros: - Responsive field manager - Very fast demolition and quick work overall - Crew was hard working and polite, especially Antonio - Tiling work looks good Cons: - When a piece of plumbing broke and flooded the ceiling below, the response was that things like this happen. It took 5 days for the field manager to take a look and offer an apology. - During demolition, the mess was off the charts bad, leading to a lot of cleanup for us afterwards. During the project only the floor was covered (and on one day not at all). I've had other renovations done that were much cleaner. - The finishing was not as polished as I would have hoped. The caulking around fixtures was messy, the tile tilted slightly revealing the old seam around the floor, painting that was in the bid was only one coat until I asked for more. I think the M.O. is to work very quickly and fine tune the finishes only after being asked. Overall we're happy with the result but would have liked them to go a little slower to be more careful. Kristy K.September 16, 2025Verified Ground Up Builders have been amazing to work with!! They are professional, offer great suggestions, and produce sold work. Jacob is amazing!! He truly cares about the work that is put into your home as if it's his own home. He treats you like family. For us, Jacob went above and beyond. We live in El Monte and the city is not easy to work with. They kept giving us problems with permits, etc. Jacob didn't just email them and wait around. He drove over in person time and again to resolve the issues and speed up the process for us. If you want something done in your home, you can trust the team at Ground up Builders! Aaron F.September 10, 2025Verified I had an excellent experience with Jacob Hirschorn and Ground UpBuilders! They came out to inspect a problem I was dealing with after I had already received a quote from a big-name company. Right away, I noticed how professional and detailed they were. They carefully assessed the situation, explained everything clearly, and recommended addressing the issue in two stages to make sure it was done right. Thanks to their honesty and thoroughness, I discovered that the big company's quote was not only overpriced but also wouldn't have fully solved the problem. Jacob & his crew saved our family a lot of money and gave me peace of mind knowing the job was done correctly. I highly recommend Jacob & Ground Up Builders if you're looking for a contractor who is professional, trustworthy, committed to doing quality work & a long lasting relationship. Barbara O.September 2, 2025Verified Jacob Hirschorn and Ground Up Builders did a high quality job on a residential apartment unit that needed mold remediation and tile abatement, followed by replacement of very old bathroom materials and fixtures with new of same. The finish product looks very professional. Jacob managed the field crew with Ground Up's long-standing pool of workers, including Manny and Cesar. Jacob did not over-promise anything and stayed on schedule. The office team was very helpful as well, including Mary Jane and Tish. It is best to determine ahead of time if you may need a THP with the City of LA and establish who will purchase materials. Thank you Ground Up Builders. You delivered. John F.August 26, 2025Verified We have now used Uzi and his team for three jobs: When a car crashed into a front bedroom, for a bedroom & den with flood damage, and a recent remodel including repairing hundred year old hardwood floors, windows, etc. He gets all 5 stars from us. He does what he says he will, and he does it on time. He has a fine crew that really came through for us. Absolutely 5 of 5 stars. Thanks for everything, Uzi!! Angelo D.August 19, 2025Verified I've worked with Ground Up Builders for many years, and Jacob has always been my go-to person. He is extremely knowledgeable, patient, and takes the time to share creative ideas--he recently spent a long time helping me plan my kitchen remodel. His estimates are fair, right in line with other general contractors, but what sets him apart is his honesty, integrity, and the value he brings to every project. Over the years, Jacob has replaced carpeting with LVT flooring (and even secured me a great discount with the flooring company) and corrected the poor work of a previous contractor on a decorative window. Every experience has been positive, and I truly trust his judgment and workmanship. Ground Up Builders is always the first company I call, and I highly recommend them to anyone looking for quality work and a contractor they can rely on. Hank C.August 18, 2025Verified Huge fan of Ground Up's work. Jacob and Uzi have guided us through planning and permitting for several residential projects with amazing know-how, attention to detail and professionalism. Certainly the most attentive and thorough contractors we've dealt with. And when we lost our home in the January 2025 Eaton Fire, they went above and beyond to help us navigate our insurance claim and to help prepare for our possible ground-up rebuild. Highly recommend them for any design or construction needs, big and small. Hector H.August 13, 2025Verified I purchased my first home with my dad last year and really wanted a pool in my small backyard. I was worried it wouldn't be possible just due to the huge dirt hill we had taking up half of the space. Adi Aiish at Ground Up Builders and Marcos Rojas took on this challenge and let me tell you, they absolutely did not disappoint. They took my plain backyard and turned it into an oasis, equipped with a heater for the pool AND the spa, as well as a built-in, natural-gas grill and countertop and tied it all together with a stunning planter and moody lighting that really brought the set up to life at night. I highly HIGHLY recommend these guys for anybody's future home upgrades and projects. Thank you so much for also getting this done quickly and safely!!
Exploring Different ADU Remodeling Options with Ground Up Builders
Accessory Dwelling Units (ADUs) have become increasingly popular as homeowners look for ways to maximize their property’s potential. At Ground Up Builders, we specialize in creating customized ADUs that cater to your specific needs. Here’s a look at the different types of ADU remodeling options we can build:
Garage Conversions
One of the most common ADU remodeling projects involves converting an existing garage into a functional living space. Whether you have a one-car or two-car garage, we can transform it into a comfortable studio or a fully-equipped apartment. Garage conversions are an excellent way to add value to your property while creating additional living space with minimal disruption to your home.
Detached ADUs
Detached ADUs are standalone structures built on your property, separate from the main house. These units offer complete privacy and can be designed to include all the amenities of a full home, including a kitchen, bathroom, living area, and bedroom. Detached ADUs are ideal for rental units, guest houses, or even as a private retreat for family members.
Attached ADUs
For those who want to add extra living space without completely separating from the main house, an attached ADU is a perfect solution. These units are built as extensions to your existing home, seamlessly blending with the original structure. Attached ADUs can serve as in-law suites, home offices, or additional living areas for growing families.
Basement Conversions
If you have an underutilized basement, we can transform it into a cozy and functional ADU. Basement conversions are a great way to make the most of your existing space, providing a comfortable living area that can serve as a rental unit, guest suite, or an extra bedroom for your family.
Over-Garage ADUs
Building an ADU above your existing garage is another innovative way to add living space to your property. These units maximize vertical space and can be designed with all the features of a full apartment, including a separate entrance for added privacy. Over-garage ADUs are perfect for rental income or as a separate living area for family members.
Custom Designs
At Ground Up Builders, we understand that every homeowner’s needs are unique. That’s why we offer fully customizable ADU designs tailored to your specific requirements. Whether you’re looking for a modern studio, a rustic guest house, or a luxurious retreat, our team of experts will work with you to bring your vision to life.
ADU Transformations That Maximize Your Space
Experience the incredible transformation of your property with our ADU (Accessory Dwelling Unit) construction services. From initial, underutilized spaces to fully functional, stylish units, we handle every detail. Watch as we turn your vision into reality with thoughtful design, top-notch materials, and expert craftsmanship—creating a beautiful and practical living space that adds value and versatility to your home.
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ADU Contractors In Los Angeles
- Expert Craftsmanship: Our skilled team delivers top-quality construction with attention to every detail.
- Personalized Designs: Tailored ADU solutions to match your unique style and needs.
- Quick & Efficient: From planning to completion, we ensure a smooth and timely process.
- Licensed & Insured: Rest easy knowing your project is in safe, professional hands.
100% Financing Now Available
Ground Up is an approved contractor for a number of financing programs, many that the competition isn’t qualified to offer — meaning, we’re able to help you find the best rate in town.
Licensed, Bonded & Insured
This is important because the last thing you want is to get personally sued by a concrete installer working for a company that isn't insured who gets injured while working on your project.
Free Consultation
Get our expert opinion free of charge. Our experienced, licensed contractors are happy to meet in person to show you how our service can benefit you.
Family Owned & Operated
Ground Up Builders is family owned and operated, and our owners proudly work in the field, sharing their commitment to quality craftsmanship with the Southern California community.
Affordable, Quality Service
Our size allows us to efficiently service the greater Los Angeles, Orange and Ventura Counties, offering quality service and attention to detail at a competitive rate.
Customers Love Us
Our quality speaks for itself, and from Yelp to Angie’s List and everywhere in between, our customers know it.
Transform Your Garage into an ADU with Ground Up Builders
LA County’s law change allows easier garage conversions into Accessory Dwelling Units (ADUs). This trend benefits homeowners by adding living space, increasing property value, generating rental income, and accommodating extended family. Ground Up Builders, with over 16 years of experience, specializes in high-quality ADU construction, ensuring customer satisfaction with expert craftsmanship and licensed, trusted service.
Types of ADU Remodeling Projects
At Ground Up Builders, we specialize in creating customized Accessory Dwelling Units (ADUs) that maximize your property’s potential. We offer a range of ADU remodeling options, including garage conversions, detached units, attached units, basement conversions, and over-garage ADUs. Each project is tailored to meet your specific needs, whether for additional living space, rental income, or accommodating family. With over 16 years of experience and a commitment to quality craftsmanship, we ensure your ADU is built to the highest standards. Let us help you transform your property with a beautiful, functional ADU.
Why Choose Ground Up Builders?
With over 16 years of experience and a clean license since 2008, Ground Up Builders is committed to delivering top-quality ADU remodeling services. Our team of professionals ensures that every project is completed with the highest standards of craftsmanship and customer satisfaction. From initial design to final construction, we handle every aspect of your ADU project, making the process seamless and stress-free.
Ready to Build Your Dream ADU?
Contact Ground Up Builders today to explore the possibilities for your property. Whether you’re looking to increase your home’s value, create additional income opportunities, or accommodate family members, we’re here to help you build the perfect ADU.
































