Is your home CHERPing?


A partnership with the City of Claremont, California,
local energy efficiency experts and volunteers.

About Us

The Claremont Home Energy Retrofit Project (CHERP) is coordinated by a team of volunteer organizers, including residents from all walks of life and representatives from a wide variety of community organizations in and around Claremont, California. Our team unites young and old, professional and amateur, student and professor around our desire to effect significant, immediate, and positive change in our community and the environment – and we believe that Energy is at the Heart of the Matter.

If you would like to speak to any of us to learn more about what we are up to or how you can help, please contact us at the addresses below or at

Meet the Team

Devon HartmanDevon Hartman,  Co-Founder: Education/Inspiration
Devon Hartman is now focusing his 35 years of experience in architecture, construction, and strategic business development on the field of Energy Efficiency. He is an expert in strategic business systems development, consumer-facing sales and marketing strategies and energy efficiency management operations in Home Performance. Newly retired from his decades-long role as Co-Founder and President of HartmanBaldwin Design/Build, Inc., he has co-founded CHERP to form collaborative partnerships with community organizations, contractors and cities to promote sustainable building practices and the reduction of fossil fuel use in buildings throughout California and beyond: Hartman takes new role. His award-winning architecture and construction work has garnered over 50 national awards, including the Gold Nugget Grand Prize from the Pacific Coast Builder’s Association and the Grand Prize Design Award from Remodeling Magazine. His work has been featured in numerous articles and interviews including Preservation, Wall Street Journal, Remodeling Magazine, LA Times and HGTV and he has worked in France, Peru, Brazil and Egypt. Devon is a General Contractor, Designer, Developer - VGM Santa Barbara, LEED AP, Green Point Rater, lecturer; consultant; community organizer/educator. Founding Member of Efficiency First, Board Member of Effinciency First California and Sustainable Claremont, Co-Founder of CHERP (Community Home Energy Retrofit Project), Co-Founder and Project Consultant for the Pilgrim Place Energy Efficiency Project.   

Freeman Allen

C. Freeman Allen,  Co-Founder: Communication/Orgaization
Ph.D, Professor Emeritus of Chemistry, Pomona College. Co-Chair of Sustainable Claremont. Concerned for decades about the long-term consequences of global warming caused by excessive use of fossil fuels. Member of the task force that drafted the City of Claremont's Sustainable Plan adopted in 2008. Sustainability Director for the local League of Women Voters and co-chair of their Water Task Force.


Chris VeirsChris Veirs, City Liaison: Government Relations/Public Policy 
M.A. in Urban and Regional Planning. Senior Planner and Sustainability Coordinator for the City of Claremont; responsible for implementing the Claremont Sustainability City Plan adopted in 2008 (go Claremont!); responsible for entitlement and design review of the successful Claremont Village Expansion Project, a huge mixed-use, transit-oriented development in downtown Claremont; member of the San Gabriel Valley Council of Governments.


Marilee Scaff
Claremont Community Hero - 2011; built a passive solar house in 1955; U.N. World Conference on Women in Beijing - 1995; Past President of L.A. County League of Women Voters; Co-Chair of League's Task Force on Water; Rancho Santa Ana Botanic Garden: Board of Overseers; board member of Girl Scouts and the Clinebell Institute; Educational Director for United Church of Christ; assistant to the Chaplain of the Claremont Colleges; retired teacher and professor.


Katie Gerecke
Retired Professor of Child Development; board of directors - Sustainable Claremont; board of directors - League of Women Voters. Interested in CHERP and Southern California from the point of view of involving our local communities in sustainable action - environmentally, socially and economically; retrofitted her home early on in the project and says it has made a great deal of difference in its comfort and value; lives part of the year on a sailboat.


Sheila McCarthy
Journalist; preservationist; property manager. Retrofitted her rental house and works to educate the local rental housing industry about retrofitting for energy efficiency, sustainability and comfort; advocate for retrofitting our historic housing stock to protect it and ensure its future viability.



Donna LeeDonna Lee, Region Manager: Southern California Edison
A member of Sustainable Claremont's Energy Action Group and involved with CHERP since its inception. Promotes energy efficiency and SCE's programs, which have saved more than 5 billion kilowatt-hours over the last five years and reduced greenhouse gas emissions by more than 2 million metric tons. SCE encourages Claremonters to Save Energy, Save Money, and Save the Environment.


Char Miller
Directs the Environmental Analysis Program at Pomona College, and coordinates the Claremont Colleges major in EA. He writes a weekly column for KCET on environmental issues in California and the West, called “Golden Green.” In 2009, he and his wife had a complete energy analysis of their 1956 ranch-style home in Claremont and are reaping the rewards of the new HVAC system and greater insulation.


Andrew Durben, President: Home Performance Matters
President and Co-Founder of Home Performance Matters. Trainer for the California Building Performance Contractor’s Association and leading expert in "Home Performance" from installation to design. While finishing his master’s degree, Andrew began doing construction work and fell in love with building science. He helped establish the home performance division at Hartman Baldwin Design/Build in Claremont. Andrew places the most value on real jobs with real energy savings.


Brian Strack
Building Performance Analyst; general construction experience; background and formal training in public education. Would like to help Claremont meet its sustainability goals.



Marissa Novak
Intern. Undergraduate student at Harvey Mudd College studying Environmental Analysis and Computer Science. President of Harvey Mudd's chapter of Engineers for a Sustainable World. Interested in energy and sustainability in general.