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"Additions recoup an average of 94% of overall investment."

- Remodeling Magazine,
November, 2002.



A 21st Century Building Company addition is a seamless, integrated expansion of the interior space, with detailed attention paid to matching the architectural integrity of the exterior of the home. We are widely recognized for the stunning Master Suites, cozy Family Rooms & Entertainment Areas, and inviting Kitchens & Sunrooms we have designed and built. In addition to our creative & interactive Online Design ability, our expertise also ranges from knowledge of local building codes to appreciation and awareness of the differing architectural styles of our unique suburban residential area.

21st Century Building Company additions are expertly designed by our in-house residential designer, whose 45 years' of remodeling and designing experience lends itself to any challenge or style. Your addition will be masterfully built by our group of craftsmen who pride themselves in the skill and knowledge they bring to each new job. Our Interior Decorator brings 25 years' of experience to the table for professional materials, surfaces, and color selections, should you choose to include her in our process. All of our additions come with a Five-Year Warranty to give you the comfort and security knowing that your satisfaction with our work and our company extends well beyond the completion date. Professional design, solid construction, and reliable customer service and warranty are what you can expect when 21st Century Building Company builds your addition.

"They were extremely easy to work with and very professional. The design process itself was incredibly productive. We were impressed with the high-tech online conferencing that makes is possible for everyone to participate, in real time, in the actual design process. We would highly recommend both 21st Century Building Company, and their in-house designer, to do any size renovation"

Tom Frawley
Homeowner's representative
Whole House Remodel: Sunroom addition, floor plan reconfiguration, kitchen, 3 bathrooms, cherry entertainment center built-in, James Hardie siding, Pella windows and doors, and basement finishing
Franklin, '07

21st Century Building Company additions flow seamlessly from the existing home into the new space. Our clients are always amazed when they see how well we transition the original structure into the new addition for transparent beauty and appearance. Whether you need a little extra space or a major expansion, 21st Century Building Company will create a solution for your needs, a flawless design, and a home addition you will cherish and enjoy. We are proud to be renovation experts.