Who We Are

When Dean Rittenhouse and I started the company in 1995, we were determined to create a residential construction company with a difference. That difference would come from two pillars on which we planned to build the company.

First, that we would always keep craftsmanship, quality and attention to detail as the overriding principles in everything we did, in every decision we made.

Second, beyond craftsmanship and quality, and of equal importance, would be the way we communicated and interacted with clients. Communication skills — listening, would be at the core of Rittenhouse Builders.

Those values have been central to the success story of Rittenhouse Builders. And in fact, our success was such that as the business grew and thrived, over time Dean was pulled further away from what he loved best about his profession.

Those demands took him away from the day-to-day, hands-on application of his craft, to a point where he was managing other priorities and other people rather than simply building things with his hands and solving challenges with his skill.

With the realization that the company he had helped found was in good hands, Dean decided in late 2012 to begin anew, to start another venture in which he could return to the aspects of his trade that inspired him every day.

We’ve seen over and over again how much communication and listening matters to clients. A project will not always unfold exactly as planned; clients may change their mind or not be completely happy with the way something looks.

It’s our job to know those things, to anticipate them, to listen carefully and be sensitive to a client’s needs, including the ways a project may be disrupting their lives.

Since 1995 keeping our core values and mission front and center has served us well. Which is why they’ll continue to drive the way we do business for years to come.

George Metzler

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Team Bios

The Rittenhouse team is comprised of people with diverse backgrounds and varied skills. Yet the common Rittenhouse DNA shared by all is their singular focus on craftsmanship and excellence. As a company we accept nothing less, and as individuals our team is never satisfied with anything less.

Gary Mohler

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Ivan Umble

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Jeff Landis

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Dave Witwer

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Our office staff is as detailed and dedicated to the internal operations of the build that eliminate surprises and effectively communicate each stage throughout our team.


Laura Ressler

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Erin Metzler

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Bonnie Bruner

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Emma Jean

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Dean Rittenhouse

Founding Partner

Dean has always been interested in construction. He was raised in a family that fostered a strong work ethic and he grew up helping his father build houses from start to finish. He spent much of his early years learning the trades from the ground up, specifically carpentry.

He went on to school at Penn State University and graduated with a Bachelors of Science degree. His love of construction and his desire to convert that into a business led him to start Rittenhouse Builders with George Metzler in 1995.

Dean lives in Chester County with his wife and sons. Family and church are central to Dean’s life and he devotes his free time in the service of church. Dean is passing along the carpentry-as-a-calling ethic to his sons, taking them along on trips to lumber yards and explorations of tool departments. Generations of experience make the best teacher.

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 George Metzler

Founding Partner

When George co-founded Rittenhouse Builders with Dean, he realized that both of them were young men with a mission. He and Dean embraced the notion that construction, whether renovation or new, was about much more than lumber and nails and tools.

The lumber and nails and tools would build more than walls and roofs; they would build a family’s dreams, the spaces where they would live and laugh and cook and entertain and carry on with their lives every day.

The seriousness of that responsibility required a rock-solid commitment to putting forth the absolute maximum effort and painstaking attention to every detail, all day, every day.

George’s avocation is competitive long distance bicycling. He likens the discipline and focus required for that sport to the combination of short- and long-term perspectives needed to successfully shepherd a project from beginning to end.

George grew up on a dairy farm in Lancaster County, Pennsylvania. His parents worked hard on the farm, George learned early on what hard work meant, and that it took a team to make the farm work. George currently lives in Lancaster County with his wife and three children.

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Gary Mohler

Gary specializes in historic renovation and approaches each project with a plan, while making room for the unforeseen challenges of matching old and new construction. His experience allows him to addresses each surprise calmly, with practical options. He excels at woodwork and finish trim work and especially enjoys the variety and problem solving required for historic homes.

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Ivan Umble

Ivan brings a depth of construction knowledge to each jobsite. Early jobs as mason tender, plumber’s and electrician’s assistant led him to attack more complex tasks as he aquired a greater variety of skills. He can operate an overhead crane, as deftly as managing complete renovation through framing, roofing, drywall and trim carpentry. Advancing from subcontractor to owner in partnerships of his own construction companies, Ivan built custom homes and handled commercial projects, while taking time to ski and hunt mule deer and elk. His management style at Rittenhouse now draws on each of these experiences to ensure every job runs smoothly– with accomplishment in the crosshairs.

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Laura Ressler

Reliable, cheerful, and honest, Laura has demonstrated each of these working values within the estimating department at Rittenhouse Builders since 2005. Her attention to the financial details and knowledge and experience of residential construction make her a critical member of the team.

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Dave Witwer

Estimating each of the jobs completed by Rittenhouse Builders, Dave knows how to create efficiencies with your dollars. With every stage of the process accounted for- and a shrewd awareness of what each phase will take in time and materials, his precision, experience and confidence in addressing the costs keep each project in check financially.

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Bonnie Bruner

When you work with Rittenhouse Builders, one of the voices you’ll come to recognize, and trust is Bonnie’s. To her, Customer Service means endless energy and unwavering enthusiasm for your project. She’ll encourage and reassure you, while sharing the emotion of getting you exactly what you’re expecting. In the end, she’ll celebrate and enjoy the finished job as much as you will.

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Erin Metzler

Having a capable hand on exactly where your project stands financially is what can keep you calm throughout a long process. And allow you to make educated decisions about getting some of the extras you’re hoping for. Erin’s dedication and determination bring proficiency and professional balance to each job. She’s dedicated to maintaining and reporting the status of your job and capturing the accounting details.

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Emma Jean

Emma Jean

Emma is the voice you can trust to answer phone calls, emails, and get the answers for your questions. She has grown up locally and is a recent graduate from Eastern University. Emma uses her kindness, patience, and efficiency to help you with any question or concern. She joined the Rittenhouse team to help with permitting and social media and she has a passion to learn and grow with each new day.

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Dave Witwer

Estimating each of the jobs completed by Rittenhouse Builders, Dave knows how to create efficiencies with your dollars. With every stage of the process accounted for-and a shrewd awareness of what each phase will take in time and materials, his precision, experience and confidence in addressing the costs keep each project in check financially.

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Jeff Landis

Jeff Landis

Jeff began working in the high-end construction industry over 30 years ago. From that experience, he brings with him a deep knowledge of all construction trades which allows him to manage the job with ease. Jeff joined the Rittenhouse team as a job supervisor which adds to his 17 years of experience managing and supervising highly complex projects. Our clients have appreciated his craftsmanship as he brings their vision to life and does it with joy along the way.

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