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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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Ryan Rittenhouse

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Jason Johansen

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Ivan Umble

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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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Morgan Umble

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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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Ryan Rittenhouse

Managing a custom addition, basement or kitchen is Ryan’s gift. The precision, workmanship and creativity required for the overall quality of these types of jobs compel and drive him. Organizing and adeptly addressing the pyramid of details from start to finish allow him to achieve his ultimate goal of having smiling, appreciative customers once the job is complete.

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Jason Johansen

A dynamic and devoted worker, Jason’s energy at the layout and framing stages of an addition sets the tone for the whole project. You’ll immediately recognize the way his animated presence and hard work will keep your shared vision moving forward. Active and fit, (and always moving) he approaches each project with the same athletic intensity and team sportsmanship.

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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

Estimating each of the jobs completed by Rittenhouse Builders over the past 7½ years, Laura 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, her precision, experience and confidence in addressing the costs keep each project in check financially.

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Rhonda Umble

Reliable, cheerful, and honest, Rhonda has demonstrated each of these working values within the estimating department at Rittenhouse Builders since 2007. 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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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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Morgan Umble

Speaking with Morgan, you’ll have instant access to the daily scheduling, staffing and logistics of the Rittenhouse operation. Working closely with George, Morgan is responsible for the appointments, inspections and permits that keep your project running efficiently, while hitting the milestones we’ve promised along the way. Looking for someone? Ask Morgan. Need a file or copy of the plans? She will retrieve it, all with a smile in her voice.

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