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"We spent some time live with molds and we don’t know it was mold. We are trying 2 times to clean it out with some cleaning companies, but it was useless. Finally we got lucky with Bio 911- very professional, sharp, deeply attentive for details, even for our lifestyle depending on appearance of mold and compared with other not expensive. Thank you very much for Bio 911 and personally Kirill for outstanding work."

"Sobi is worth every penny, returns calls immediately and his work is flawless. His team is there, on time, and working hard all day!"

"Atilla is very professional, with a strong work ethic. He listens well to requests and makes common sense suggestions. He works along with his crew and supervises every detail. Definitely will use Promise Land again."

"Wonderful service and they did a great job!!"

"We interviewed several contractors before choosing Builders Group, and the biggest difference was how well they communicated. They answered every question, provided updates throughout the project, and were always available when we needed them. It made the entire remodeling process much less stressful. The final result was beautiful, but the customer service is what really stood out."

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. \nIt is our mission to provide excellent customer service from start to completion of a project. \nTo understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. \nOur reputation is based on service, safety and quality, regardless of how large or small the job \n

"I have been using and dealing with Advantaclean for approximately 2 years now. They have done some great work for us. Joe Mabutas really steps up and helps me ensure that the work is done in a timely manner and is wonderful working with the insurance companies, tenants, and or owners as well with our property managers. I am the Operations Manager for a property management company in Tracy California and manage several hundred homes, so have had to use Advantaclean services on more than one occasion! I appreciate the professionalism and great customer service!"

"I hired this contractor through for mold testing and had a great experience. Scheduling was easy and they arrived on time. The technician was professional, explained the process clearly, and answered my questions without any pressure to add services. Results were delivered as promised and the report was easy to understand. I?d definitely recommend them for anyone needing mold testing."

"Throughout our project, their general construction services were consistently professional and reliable. They managed every detail flawlessly, ensuring a smooth and efficient process from start to finish."

Avant-Garde Construction Enterprise is a family-owned Bay Area general contractor specializing in seismic retrofits, foundation repair and replacement, crawl-space work, and drainage solutions for older homes and small multifamily buildings. We are licensed, insured, and have completed thousands of structural and seismic projects throughout the Bay Area.\n\nWe begin with a thorough evaluation, not a quick "free estimate." A typical visit includes a complete crawl-space inspection, to-scale sketches, photos, and a detailed written report with clear recommendations, itemized options, and pricing. We can coordinate structural engineering, permitting, construction, and finish work, providing a single point of contact from start to finish.\n\nOur services include brace-and-bolt retrofits, soft-story upgrades, foundation stabilization and replacement, drainage and moisture control, and correction of defective prior retrofit work.