Certifications
Built to a Higher Standard
Harris Dewart holds the certifications, licenses, and technical expertise to deliver high-performance construction across the Colorado foothills. We have the credentials to back every project we build.
- 90% less energy
- Indoor Air Quality
- Built for the Mountains
Passive House Certified
Passive House construction follows one of the most rigorous building standards in the world — and one of the most rewarding to live in.
Through super-insulated walls, airtight building envelopes, high-performance windows, thermal-bridge-free construction, and continuous fresh-air ventilation with heat recovery, Passive House homes create an exceptionally stable indoor environment year-round. The result is a structure that requires up to 90% less energy for heating and cooling than a conventionally built home — drastically reducing utility costs and long-term carbon emissions.
For mountain homeowners in Nederland and across Boulder County, the benefits go beyond energy savings. Passive House construction delivers superior indoor air quality, consistent room-to-room comfort regardless of outdoor temperatures, and long-term durability that holds up in demanding high-altitude conditions.
Harris Dewart brings hands-on Passive House expertise to every qualifying project, from envelope design and insulation detailing to mechanical integration and final certification. If you’re considering a high-performance home on the Front Range, this is the benchmark worth building to.
- Independently Verified
- Lower Operating Costs
- Nationally Recognized Standard
ENERGY STAR Rated
ENERGY STAR® is the nationally recognized benchmark for energy-efficient construction, backed by the U.S. Environmental Protection Agency. Homes and buildings that earn the ENERGY STAR rating are independently verified to meet strict performance standards for insulation, air sealing, HVAC systems, windows, and overall energy use.
For homeowners, an ENERGY STAR rating means lower utility bills, a more comfortable living environment, and a home that retains its value over time. For commercial clients, it signals a building that operates efficiently and meets modern expectations for sustainability and performance.
Harris Dewart is certified to build to ENERGY STAR standards on both residential and commercial projects. We deliver verified performance, not just good intentions.
Licensed Across the Front Range
Harris Dewart is fully licensed and insured to operate across Boulder County, the greater Denver metro area, and Colorado’s mountain communities. Our licensing spans residential and commercial construction, giving clients confidence that every project is built in full compliance with local codes and jurisdictional requirements.
Need construction in a jurisdiction not listed? Contact us! We regularly facilitate licensing for new project locations across the Front Range.
We are currently licensed in:
- Boulder County
- Gilpin County
- City and County of Broomfield
- Jefferson County
- Town of Nederland
- City of Boulder
- City of Thornton
- City of Wheat Ridge
- City of Arvada
- City and County of Denver
Licensed & Insured
Passive House Certified
ENERGY STAR Rated
20+ Years Experience
Ready to Build to a Higher Standard?
Whether you’re planning a Passive House build, a high-performance renovation, or a commercial project that demands quality at every stage, Harris Dewart has the credentials and the experience to deliver.