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Restaurant Szechuan Garden
Fire / Police Station
Fire / Police Station Baden Volunteer Fire Dept
Education (K-12)
Education (K-12) North Beach Boys & Girls Club
Government Charles County Sheriff’s Property Management Facility
Church / Synagogue
Church / Synagogue Peace Lutheran Church Sanctuary Building
Apartments & Condominiums
Apartments & Condominiums Southwinds @ North Beach Apartments
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Founded In: 1963
Size: 100-249 Employees
Annual Vol: Undisclosed

Our Story

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For more than 53 years, our award-winning family-held firm has remained independent, allowing us to excel in quality workmanship and unsurpassed customer relations and service. Guadagnoli Companies consists Rainbow Construction Corporation of Waldorf, Rainbow Commercial Construction and Guadagnoli Properties. Working together as a team, our family and employees, along with our subcontractors, strive to provide our clients with a product built with pride and quality craftsmanship at affordable prices.

Our goal is to assure customer satisfaction by providing individualized attention to each project. We make the building process an enjoyable experience from pre-construction to long after moving in. Our qualifications range from community homes and commercial renovation to semi- and fully-custom capabilities whether residential or commercial. We build to suit our clients in Charles County, Waldorf, Southern Maryland and Washington, D.C. .

As recipients of the prestigious SMBIA Builder of the Year Award, Finest for Family Living Award, and the Parade of Homes Award of Merit, you can be assured that by building with us, your project will be built with the highest standards of quality, service, and style.

We know you’ll be proud to say you own a Rainbow home or have worked with Rainbow Commercial Construction. We wouldn’t want it any other way.

What We Do

Products/Services Relating to General Contractors

Project Experience

Service Sector:
Public Private
Project Types:
New Alterations/Renovations Interior Fit-Ups

Service Areas

Associations & Memberships

Member of Charles County Chamber of Commerce Charles County Chamber of Commerce
Member of Green Advantage Green Advantage
Member of NAHB (National Assn. of Home Builders) NAHB (National Assn. of Home Builders)
Member of SBA (Small Business Administration) SBA (Small Business Administration)
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