Transforming homes with expert craftsmanship, personalized service, and trusted restoration solutions.
MainStreet407 Remodeling specializes in home improvements and insurance restoration services throughout Maryland, Virginia, and the District of Columbia. Backed by more than 30 years of experience, our team delivers high-quality renovations, repairs, and remodeling projects with a commitment to exceptional craftsmanship, responsive project management, and personalized client care—regardless of project size.
As a member of the 407 Associates family of companies, MainStreet407 Remodeling is supported by an integrated network of design, engineering, construction, and development professionals. This collaborative approach allows us to provide efficient project delivery, streamlined coordination, and cost-effective solutions while helping homeowners create spaces that are beautiful, functional, and built to last.

Team

Jeffery B. Kozero, PE
Founder and CEO
Jeffery B. Kozero is the Founder and CEO of 407 Associates. He earned his engineering degree from Pennsylvania State University and is a licensed Professional Engineer. Over the course of his career, Jeffery has built and led an architectural and engineering firm from a local presence in the DC-Maryland-Virginia region into a company with a national footprint. He has also founded and managed several real estate development companies delivering development, design, and construction services, overseeing projects that total more than 12 million square feet of construction and an estimated value exceeding $2.9 billion. Jeffery founded 407 Associates to bring design, development, and property management fully in-house, giving clients and investors a single, accountable partner from concept through completion.
Email: Jkozero@407mainstreet.com

Alexis R. Norman
Interim CFO
Alexis R. Norman serves as Interim CFO of 407 Associates and is the Founder and Principal of ANI Accounting Solutions. As a solo practitioner, she draws on more than 20 years of professional experience in finance and accounting and works alongside a trusted network of partners to serve her clients. Alexis is a graduate of Trinity University in Washington, DC, where she earned a bachelor’s degree in business administration before becoming a licensed certified public accountant (CPA) in Maryland, where she works and now resides. Her experience spans a wide range of industries, including construction, legal services, MedTech, nonprofit and public relations, giving her a broad, practical perspective on financial management.
Email: Alexis@407mainstreet.com

Elaine Hui
CAO
Elaine Hui is the Chief Administrative Officer at 407 Associates, bringing more than 20 years of experience in design, construction, and project management within the utility industry. She is widely respected for her expertise leading complex projects for the State Highway Administration (SHA) and county governments. Elaine specializes in enterprise-wide change management, having guided teams through major technology transitions including the implementation of GIS and AS8 systems. She holds a degree in Urban Planning and GIS from the University of Waterloo. She combines her spatial data expertise with a strong focus on utility construction design and exceptional customer service.
Email: Elaine@407mainstreet.com

Maklin Vaquerano
Director of New Home Design & Construction
Maklin Vaquerano serves as the Director of Design and New Homes at 407 Associates, bringing more than 20 years of experience in architecture, construction, and project management. He holds a Bachelor’s degree in Architecture and a Master’s degree in Financial Administration, with his academic credentials evaluated and recognized in the United States. Maklin leads the design and coordination of new residential projects while overseeing architectural planning, construction documentation, code compliance, and permit approvals. His experience also includes residential and commercial renovations, structural coordination, and multidisciplinary collaboration with engineering teams. He works closely with clients, consultants, and local jurisdictions to deliver innovative, practical, and code-compliant design solutions from concept through construction.