Sergiy Makoviy (Call / Text): (949) 436-5628 — Languages: English (ENG), Ukrainian (UK), Russian (RU)
Cutberto Marquez (Call / Text): (949) 816-9551 — Languages: Spanish, English
SB Sinevir Builders is an elite, fully licensed and insured structural contracting firm serving residential, multi-family, and commercial properties throughout Orange County and the surrounding Southern California coastal communities.Operating under California Contractor License #1037811, the company is a recognized regional specialist in deck and balcony reconstruction, restoration, and advanced waterproofing systems. Driven by their core engineering principle—"Quality craftsmanship. Built to last."—their comprehensive service lineup includes structural framing, protective floor coverings, concrete retaining walls, and high-performance moisture mitigation barriers designed for lasting coastal protection.Led by principal partners Sergiy Makoviy and Cutberto Marquez, SB Sinevir Builders sets a high industry standard for accessibility and professional compliance. Offering a uniquely versatile, multilingual customer experience across English, Spanish, Ukrainian, and Russian, the firm serves as a vital asset for property owners, HOAs, and property management groups seeking dedicated structural expertise, compliance renovations, and complimentary project estimates.
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