Interior Designers in Washington D.C.

Comprehensive list of Washington D.C. based office and home interior design and decorating firms.

Business Listings

We at D'Carlo Home Interiors have many years of knowledge committed to fulfilling our client requirements varying from many different services. The services we supply are upholstery, custom window treatments, refinish, slipcovers, and interior design. We establish a close relationship with our customers from our 1st meeting to the installation date.


It is more important than ever for customers and the public to expect interior design specialists to demonstrate their competency in all areas of interior design. It is not enough for a supplier of interior design services to understand just the aesthetics.


Blackburn Architects, P.C. is a complete-service architectural planning and design company specializing in equestrian architecture, commercial interiors, domestic design, and renovation and adaptive reuse. Our award-winning portfolio includes 100's of equestrian facilities as well as commercial, domestic, and historic renovation projects throughout the US and Canada.



Ms. Katie Z. Leavy is the Owner and Principal of Capital Design, a hospitality interior design company located in the Washington DC metropolitan area. The work of Capital Design spans both branded and boutique properties, and ranges in style from historical elegance to clean line transitional design.


Environmental Concepts Design is an Interior Design firm specializing in home shopping for Interior home furnishings. We provide a complete line of window treatments, carpeting, reupholstery, wall coverings, kitchen countertops, as well as comprehensive Interior Design. Environmental Concepts Design was established by Andrew Rosenberg in 1986.


OPX is committed to making nice firms work better through its core SIGMA offerings: Strategy, Interiors, Green, Magic and Architecture. OPX's holistic approach goes beyond the traditional architecture and interior design practice by creating an Integrated Operating Environment thus enabling its customers to provide on their strategic objectives.


Stephen Knollenberg has been working as an interior designer since 1996, founding a company in his own name in 2002. He designs both traditional and contemporary interiors, often combining elements of both. Innovation, editing and style are basic fundamentals of his work. Clean, timeless interiors are created by combining the finest elements in design, old and new, into balance.


Margaret Carter is a refreshing interior designer who has just entered the Washington DC market. Open, communicative, and friendlyshe approaches design from both a totally professional yet individual manner. Her vivid life, natural talent, distinctive style, and capability to intuitively read her customers has made Margaret a successful interior designer for many years.


Design Philosophy Architectural design is an evolutionary process, a patient search. Yet, the exigencies of modern business practice require rapid response. We, at WDG, believe that only through preparation, talent, communication, and, foremost, dedication to design excellence, will an optimal balance be achieved.


Each customer offers me an exceptional opportunity to combine style with my professional experience and over twenty five years of knowledge in the area of Decorative Arts and Interior Design.


When you hire an interior designer, you get an experienced professional who can solve problems, aid you avoid costly mistakes and, most importantly, create an attractive, affordable space designed specifically to suit your requirements. To find an ASID designer near you, consult the ASID Referral Service.