Business Details
We are Reilly Associates, a civil and environmental engineering firm founded in 1930. With 85+ years of experience, we have built a reputation for reliable, costeffective solutions. Our multidisciplinary team spans transportation, land development, stormwater, water treatment, and recreation planning. We serve communities across Pennsylvania, New York, and New Jersey, delivering projects from concept to construction. Our engineering expertise ensures compliance with federal, state, and local regulations for every project. We pride ourselves on transparent communication, rigorous quality control, and meeting client deadlines.
Our portfolio includes highprofile roadway improvements, wastewater treatment plants, and park development projects. We provide fullservice design, construction management, and postconstruction support to guarantee longterm performance. Our commitment to client satisfaction drives continuous improvement and innovative problemsolving. We maintain a culture of safety, professional integrity, and environmental stewardship. Our goal is to create infrastructure that enhances quality of life and supports economic growth.
Our portfolio includes highprofile roadway improvements, wastewater treatment plants, and park development projects. We provide fullservice design, construction management, and postconstruction support to guarantee longterm performance. Our commitment to client satisfaction drives continuous improvement and innovative problemsolving. We maintain a culture of safety, professional integrity, and environmental stewardship. Our goal is to create infrastructure that enhances quality of life and supports economic growth.
Highlights and features
- We have 85+ years of engineering experience.
- We offer fullservice civil, environmental, and surveying solutions.
- We serve communities across Pennsylvania, New York, and New Jersey.
- We maintain a multidisciplinary team of licensed professionals.
- We deliver projects from concept to construction with proven results.
Services
Transportation
Our Transportation service designs and evaluates roadway, bridge, and transit infrastructure to meet safety and efficiency standards. We serve municipalities, state agencies, and private developers seeking reliable mobility solutions. Our proven methodology delivers projects on time, within budget, and with minimal community disruption.
Land Development
Our Land Development service integrates planning, grading, and utility design to transform raw parcels into functional communities. We collaborate with local governments and developers to align projects with zoning, environmental, and market requirements. Our expertise ensures regulatory compliance and longterm property value.
Stormwater Management
Our Stormwater Management service designs retention basins, detention systems, and green infrastructure to control runoff and protect water quality. We serve municipalities, developers, and industrial sites requiring compliance with state and federal water regulations. Our solutions reduce flooding risk and enhance ecosystem resilience.
Water Treatment
Our Water and Wastewater Treatment service plans, designs, and oversees treatment plants that meet stringent environmental standards. We work with municipalities, universities, and private facilities to secure reliable water supplies and efficient waste handling. Our projects deliver safe drinking water and reduce regulatory penalties.
Recreation Planning
Our Recreation Planning service creates parks, trails, and playgrounds that foster community wellbeing and outdoor engagement. We partner with local governments, schools, and private investors to design inclusive recreational spaces. Our designs enhance property values, promote health, and strengthen neighborhood identity.
Reviews (5)
Monte Omfs
Oct 25, 2021
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Their staff member Chris McDermott called me late at night 2 years after some survey work for land development and said his staff lost emails and forgot to bill me. First he asked if I received a PPP loan. Next he stated that I owe him 30k. After being shocked this was lowered to 10k and subsequently I have investigated some of the work supposedly performed and found out lengthy meetings and such did not occur. Waiting for a phone call from the owners. Sounds a lot like extortion of monies.
Mike B.
Dec 04, 2020
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The head of the survey department Todd is excellent and has great concern for quality of product and customer satisfaction. A long standing well established firm.
Emily Walsh
Dec 22, 2019
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I had a great experience working with the Reilly team! They are an incredibly honest, hard-working, and reliable group. The footprint they have made in our community and region is impressive- I would happily recommend them to anyone!
Charles Salsman
Dec 22, 2019
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Not having a good experience with this company. I got a quote from one of their previous employees, and they were not happy with the rate given to me to start. After contracting them, it took 4 months to get my property surveyed, not sure how they did the job, as i never caught them on my security cameras. Now one of my markers is gone and they won't give me the location or measurements of my property so it can be replaced. Or so I can file civil complaints with the magistrate. But they sure.do want the rest of their money. I guess everyone involved with this will have to be subpoenaed to get any results.
Rachel Leandri
Nov 07, 2019
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An established and modern workplace environment with friendly coworkers and dynamic day-to-day learning opportunities. Reilly lends support and guidance to their employees along with room for growth professionally, financially and interpersonally. I love working here!