Business Details
50+ Years
experience
Your Trusted Partner for Engineering Solutions
Carroll Engineering was founded in 1973 with a vision to deliver exceptional civil engineering and surveying solutions. Over five decades, we have grown to become one of the largest consulting firms in the Greater Philadelphia region, employing more than 90 professionals across multiple offices in Pennsylvania and New Jersey. Our team combines technical expertise with a commitment to community-focused design, serving public and private clients in water facilities, wastewater systems, municipal infrastructure, and transportation projects. We prioritize innovation, maintaining state-of-the-art technology while adhering to traditional values of responsiveness and reliability.Our engineers and surveyors bring extensive experience in regulatory compliance, grant acquisition, and sustainable design, ensuring projects meet both current needs and future challenges. We measure success through long-term client relationships built on trust, demonstrated by our 95% client retention rate. Our multidisciplinary approach allows seamless integration of planning, design, and construction management services, delivering comprehensive solutions that exceed expectations. This combination of technical proficiency, local knowledge, and client-centric philosophy has established us as a regional leader in civil engineering services.
Services
Wastewater Engineering
Water Facilities Design
Municipal Engineering
Traffic Engineering
Land Development
Surveying Services
Environmental Engineering
Construction Administration
GIS Mapping
Grant Assistance
Details
- Year established: 1973
Highlights and features
- 50+ years of regional infrastructure expertise
- Multi-disciplinary team with 90+ licensed professionals
- Proven success in grant acquisition and implementation
- Comprehensive services from concept to construction
- Award-winning sustainable design solutions
What people say
Exceptional technical expertise
Responsive project management
Proven grant acquisition success
Reliable cost estimates
Award-winning designs
Services
Wastewater Engineering
Our wastewater engineering team designs comprehensive collection, conveyance, and treatment systems for municipalities and private utilities. We specialize in biological nutrient removal processes, inflow/infiltration investigations, and system rehabilitation projects. Services include Act 537 planning, Chapter 94 reports, and asset management solutions that optimize system performance while minimizing environmental impact. Our engineers have completed major upgrades for treatment plants with capacities up to 60 MGD.
Water Facilities Engineering
We provide end-to-end water facility solutions from groundwater source development to distribution system optimization. Our expertise includes transmission mains, booster stations, and elevated storage tanks, with specialized capabilities in PFOA/PFOS remediation. We utilize advanced hydraulic modeling to design cost-effective upgrades and implement SCADA systems for operational efficiency. Recent projects feature 4.1-million-gallon elevated storage tanks and regional transmission mains serving multiple counties.
Municipal Engineering
Our municipal services support townships, boroughs, and counties with comprehensive engineering solutions. This includes subdivision reviews, stormwater compliance, road paving programs, and MS4 implementation. We assist with grant procurement for infrastructure improvements and provide ordinance preparation services. Our team has completed community parks, culvert replacements, and pedestrian safety enhancements that address both regulatory requirements and community needs.
Traffic Engineering
We deliver multimodal transportation solutions covering traffic signal design, roundabout implementation, and roadway safety improvements. Our services include Highway Occupancy Permits, traffic impact studies, and ADA-compliant streetscape designs. With experience in both urban and rural environments, we've completed intersection improvements that reduced accident rates by 40% and developed comprehensive traffic management plans for growing municipalities.
Surveying Services
Our survey department provides boundary, topographic, and construction stakeout services for residential, commercial, and municipal projects. We utilize modern GPS and GIS technologies for accurate data collection and mapping. The team has completed survey work for over 200 residential developments and supports infrastructure projects with precise field measurements and as-built documentation.
People
Allen B. Mason
President
Leading the firm since 1997, Allen directs strategic growth while maintaining technical excellence. He oversees daily operations and client relationships, leveraging 25+ years of management experience to ensure project success.
Matthew M. Garber
Executive Vice President
With 35+ years at CEC, Matt manages IT operations and GIS services. He leads the Hillsborough office and ensures technological innovation supports engineering solutions for public and private clients.
William N. Malin
Senior Vice President
Bill oversees operations and professional development while leading grant solutions. With 34 years of experience, he specializes in municipal finance and intergovernmental agreements to support infrastructure funding.
Justin M. Coyle
Senior Vice President
Justin manages the Easton office and leads structural engineering services. His 25+ years focus on bridge rehabilitation and municipal infrastructure projects across the Lehigh Valley region.
Michael J. McCarey
Vice President
Mike directs water and wastewater services with 15+ years of experience. He serves as client representative for municipal authorities, managing complex infrastructure projects from planning through construction.
Questions
What geographic areas do you serve?
We primarily serve Pennsylvania, New Jersey, and Delaware with engineering solutions tailored to regional requirements.
What engineering disciplines do you offer?
Our services include water/wastewater systems, transportation engineering, municipal infrastructure, land development, and surveying.
How experienced is your team?
Our 90+ professionals collectively bring over 500 years of engineering experience to every project.
Can you help with grant funding?
Yes, our dedicated grant solutions team has secured millions in funding for municipal infrastructure projects.
What project sizes do you handle?
We manage projects ranging from small municipal repairs to $50M+ regional infrastructure upgrades.
How do you ensure project quality?
We implement rigorous quality control processes and maintain ISO-compliant documentation standards for all projects.
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