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Trusted. Experienced. Ready.

For more than 30 years, DeGraff Bloom Custom Builders has been building some of the finest homes in the Capital Region. Style and character are at the core of every DeGraff Bloom home. Our reputation for building the highest quality standard home is unmatched. We stand behind our commitment to building quality ENERGY STAR® Certified homes.

Founded in 1988, DeGraff Bloom Custom Builders, Inc., is the collaboration of two experienced craftsmen working together to build you the home of your dreams.


Mark Bloom and Mark Johnson have over sixty-five years combined experience in new home construction, building construction including historic rehabilitation, light commercial, HVAC, roofing, framing, remodeling and general construction.


Each DeGraff Bloom home features energy efficient, quality construction, attention to detail, with beautiful and unique finishing touches on each house. Underlying our work is a commitment to integrity and loyalty. We take pride in our ability to modify plans not only to avoid repetitious house designs but also to meet the needs and desires of our home buyers.

In addition to a quality build, DeGraff Bloom is a 100% Energy Star  Builder, and has been a part of protecting our natural resources by building Energy Star rated homes since 2001.


Homes built by DeGraff Bloom have character and are as unique as each home buyer. Our unique craftsman style construction can be seen all over the region. With the recent increase in new companies and manufacturing locating to our region, DeGraff Bloom is focused on building accessible communities with a traditional sense of community.


We have built communities throughout the capital district area, including Clifton Park, Malta, Milton, South Colonie and East Greenbush. Our comunities are all within minutes of some of the area’s newest and largest employers.



DeGraff Bloom stands behind our quality and workmanship. To ensure buyer satisfaction, a written 10 year limited warranty through Residential Warranty Corporation, is included with the purchase of each DeGraff Bloom home. In addition, one year after closing, Mark Bloom personally visits each home. DeGraff Bloom also employs and subcontracts with some of the best in the business, giving our home buyers the reassurance they need, and a quality home building experience they deserve.


Discover why DeGraff Bloom Custom Builders is redefining craftsmanship and service for today’s new home buyer.

Professional Associations and Memberships

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