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BPC Green Builders: Connecticut’s Passive House Certified Builders

Passive house construction by BPC Green Builders

The promise of a “Passive House” (occasionally referred to by the German "passivhaus") is a beautiful home that uses only 10% of the energy of a conventional home yet rewards you with incredibly fresh indoor air quality. Both Mike and Chris Trolle, co-owners of BPC Green Builders, have completed the Passive House Consultant training program, and Chris has been certified by the Passive House Institute US (PHIUS) as a Passive House Consultant.

Whether you want to renovate an existing home or build a new custom home, BPC Green Builders can give you a home that is designed for your tastes and lifestyle and to Passive House performance standards. Not only will your Passive House slash energy consumption, it will also be exceptionally comfortable, healthy, safe, quiet and sustainable in terms of maintenance and minimal impact on the environment.

What makes a Passive House different

Incredible energy savings. A Passive House is constructed so that the building envelope – the insulation, walls, windows, doors, etc. – are so well integrated that the interior is virtually airtight. Passive Houses are also so well-ventilated that a constant supply of fresh air flows throughout the home, balanced for temperature and humidity. Heating is supplied largely by passive solar combined with the Passive House’s ability to capture heat generated by people, electrical equipment in the home, and other passive sources of energy. Cooling is accomplished by similarly passive methods, including window orientation and shading.

Passive Houses: homes for a changing world

At BPC Green Builders, we believe that homes should be beautiful, comfortable and sustainable. By building or retrofitting a home to create a Passive House, we can give our clients the absolute best all three. In addition to drastically reducing the carbon impact on the environment, Passive Houses give homeowners greater financial security in a world where energy supplies – and costs – seem increasingly uncertain.

Passive House expertise you can trust

BPC Green Builders is one of very few Certified Passive House Consultants nationwide. In addition, as one of Connecticut’s first experts in “going green,” we combine years of real-world experience with today’s newest Passive House performance standards, building science, products and materials. We do our own home energy audits, draw on our seasoned expertise with green architecture, and choose local suppliers. The result will be a Passive House sparkling with natural light, built tight with healthy materials, properly ventilated, and designed to maximize livability and comfort while dramatically reducing maintenance, energy costs, and the carbon footprint.

Contact us today for more information about your passive house services!


Fairfield County, Connecticut including: Bridgeport, Brookfield, Cos Cob, Danbury, Darien, Easton, Fairfield, Greenwich, Monroe, New Canaan, New Fairfield, Newtown, Norwalk, Old Greenwich, Redding, Ridgefield,
Riverside, Sandy Hook, Shelton, Sherman, Southport, Stamford, Stratford, Trumbull, West Redding, Weston,
Westport, and Wilton

Litchfield County, Connecticut including: New Milford, Roxbury, Washington, Washington Dt, and Woodbury
New Haven County, Connecticut including: Beacon Falls, Bethany, Derby, Milford, New Haven, Orange, Oxford, Seymour, Southbury, and Woodbridge
Westchester County, New York including: Bedford, Cross River, Katonah, Mount Kisco, North Salem, Pound
Ridge, South Salem, and Waccabuc

BPC Green Builders, LLC,
523 Danbury Road, Wilton, CT 06897-2233
phone: (203) 563-9909    fax: (203) 563-9912
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