Mantell-Hecathorn Builders
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Mantell-Hecathorn Builders
In 1975 Greg Mantell-Hecathorn, Founder of Mantell-Hecathorn Builders, embarked on a journey to simply be the best. This ethic is embodied within a steadfast dedication to the highest quality craftsmanship and a business integrity and honesty that clients cherish.

The 46 years history includes 13 years in Fairbanks, Alaska building new homes in the most challenging climate region; 18 years in Orinda, California completing whole house renovations, custom homes and establishing a reputation as a top builder for Clients with the highest standards; and 15 years in Durango, Colorado as a top design-build firm prioritizing personal attention to every detail for each client and maintaining certified quality on every project.
Services
Running our own home construction and remodeling business since 1975, we understand custom homebuilding as few others can. We are passionate about building and are recognized by clients, subcontractors, suppliers and inspectors for our attention to detail and dedication to build with quality from the foundation up.
We are thrilled with our new home built by Mantell-Hecathorn Builders. We've built several homes over the years, and this has been our best experience by far! Their attention to detail, responsiveness, and willingness to go "above and beyond" has been stellar.

From our first meeting to a final Certificate of Occupancy was less than 11 months, which is phenomenal especially considering we live 1300 miles from Durango and this was not an easy/standard building site.Greg and Hunter have outstanding relationships with subs, and all their subs are exceptional.
Greg and Hunter Mantell-Hecathorn were the first Builders in Colorado to earn the National Association of Home Builders (NAHB) Designation of Master Certified Green Professional. As of the 2020, they are the only 2 builders in Colorado and 105 nationwide to hold this accreditation. Every Zero Energy Ready Home offers a cost-effective, high performance package of energy savings, comfort, health, and durability unparalleled in today's marketplace.
Upon arrival, the first thing you notice might be the beautiful Douglas-fir siding. As you walk into the home and soak in its attractive contemporary design you see large panes of glass that let in the surroundings. Among many noticeable features are the beautiful high ceilings with exposed be. For the second year, Mantell-Hecathorn Builders has been selected as Grand Winner of the Department of Energy's National Housing Innovation Awards.
Since 2013, The U.S. Department of Energy's Housing Innovation Awards has recognized the very best in innovation on the path to zero energy ready homes. The Housing Innovation Awards recognize forward-thinking builders for delivering American homebuyers with the home of the future, today. San Juan Citizen's Alliance and Green Business Roundtable Green Business Leadership Award - One of three finalists for all businesses.
Reviews (9)
Marcy Edwards
Marcy Edwards
Jan 01, 2022
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Positive: Professionalism, Quality, Responsiveness
The team at Mantell-Hecathorn are fantastic to work with! SolarWorks! has been their solar partner for 12+ years. They are organized, efficient and build the most beautiful energy efficient homes. Their attention to detail and personal touch make them the best! Thanks Hunter & Greg!
Bob Grunert
Bob Grunert
Dec 26, 2021
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Mantell- Hecathorn Builders is the premier energy efficient home builder in the southwest. Their commitment to a higher grade product is second to none. They work with the best tradesmen in the area and have built a team that is second to none. If you are looking to build your dream home and are looking for quality and efficiency then the choice is clear.
Brian Huff
Brian Huff
Dec 25, 2021
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I have had the pleasure of working with the Mantell Hecathorn team in a professional capacity for the past five years. Their professionalism and open communication throughout the design process is appreciated. With a commitment to their net zero homes and honest dialogue regarding budgets, starting a new project with Greg and Hunter is always a privilege.
Christina Rinderle
Christina Rinderle
Dec 26, 2020
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I've worked with Greg and Tara personally and professionally over a number of years in various capacities and have great admiration for their high integrity, work ethic, and commitment to excellence in Green Building. They are very knowledgeable in creating high-quality energy efficient homes with high-performance ratings. Mantell-Hecathorn Builders remains on my top list of area builders for these reasons among others!
Concetta DiRusso
Concetta DiRusso
Apr 26, 2020
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Just moved into our magnificent new house! So much pleasure! These are the best builders and great all around people!
Gary Gear
Gary Gear
Dec 07, 2019
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In 2018 I contracted with Mantell-Hecathorn Builders to construct a custom home for my family in the Twin Buttes development in Durango, CO. I highly recommend this company if you are planning to have a residence constructed. These people are true professionals and made a very stressful and expensive project run smoothly. Greg's family and team… constructed the highest quality and most energy efficient house I've ever owned. If you are planning to have a new home built, save yourself a lot of headaches and choose the best, Mantell-Hecathorn Builders.
Daniel Connet
Daniel Connet
May 10, 2019
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As a local craftsman I have had the pleasure of working for and with Mantell-Hecathorn Builders for 10 years. I have also worked with a number of other contractors. M-H Builders are at the top of their class. They work long hours and use their resources to make sure each job site is running smoothly, while making quality time together as a family.… M-H Builders treat all subcontractors (all of which are top quality, and a pleasure to work with as well) and clients with respect. They have strong opinions on how to get things done correctly while always being open to intelligent collaboration
Alison Denk Epstein
Alison Denk Epstein
Dec 04, 2018
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We are so pleased with our new home and our experience throughout the process of working with Their integrity is impeccable, as is their attention to detail, and their willingness to truly make our custom home the best it could be based on their experience and our preferences. We thoroughly enjoyed working with , Greg Mantell-Hecathorn, Tara and Miranda, and the entire team of fantastic subs they assembled.
Paul LeNeveu
Paul LeNeveu
Sep 14, 2017
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Greg and Hunter are completely dedicated to constructing high quality beautiful and energy efficient homes. I have never seen them treat anyone unfairly or dishonestly. They are some of the best people I have worked with in over 20 years of construction!