Business Details
50+ Years
experience
Expert Geotechnical Drilling and Foundation Repair Services
Founded in 1958 by Civil Engineer Robert J. DeAngelis, Soil Testing has evolved into a trusted leader in geotechnical and environmental drilling services. Our expertise spans subsurface investigations, foundation repair, and pile installations, serving residential, commercial, industrial, and municipal clients across Southern New England, New York, and New Jersey. With over six decades of hands-on experience, we combine advanced drilling techniques and specialized equipment to deliver precise data for foundation design, construction feasibility, and settlement correction. Our team of certified professionals, including Engineering Geologist James DeAngelis and Associate Civil Engineer Phil DeAngelis, applies deep technical knowledge to address complex subsurface challenges. We pride ourselves on versatility, handling projects from low-headroom interiors to large-scale infrastructure, while maintaining rigorous safety and quality standards.Our commitment to innovation is evident in our adoption of technologies like Stelcor high-load micro piles for marginal soil conditions. Through strategic underpinning, helical piles, and grouted anchors, we provide lasting solutions for foundation stabilization and new construction. Our licensing credentials, including Home Improvement and Non-Water Supply Driller licenses, underscore our compliance with industry regulations. With a legacy of over 12,000 completed projects, we maintain a client-centric approach that prioritizes accurate data collection and actionable recommendations. Our dual focus on geotechnical investigations and implementation ensures clients receive both diagnostic insights and practical remediation. This integrated expertise positions us as a one-stop solution for subsurface challenges, from initial testing to final structural reinforcement.
Services
Geotechnical Investigations
Test Borings
Environmental Investigations
Monitor Wells
Foundation Settlement Correction
Underpinning
Pile Installation
Helical Piles
Micro Piles
Rock Anchors
Details
- Year established: 1958
Highlights and features
- We offer 65+ years of continuous geotechnical drilling expertise since 1958
- Our team includes certified engineering geologists and civil engineers
- We operate specialized equipment for challenging access conditions
- We provide integrated solutions from testing to foundation implementation
- We maintain active licensing credentials across multiple states
What people say
Prompt, professional and courteous
Well-oiled machine
Stressful job made easy
Professional manner
Experts work
Services
Geotechnical Investigations
We conduct comprehensive subsurface investigations using hollow stem auger, mud rotary, and cased drilling methods. Our services include split spoon sampling, Shelby tube collection, and rock coring to depths exceeding 250 feet. This data supports foundation design, construction feasibility assessments, and settlement problem analysis for residential, commercial, and industrial projects.
Foundation Settlement Correction
We implement corrective measures for foundation settlement using helical piles, micro piles, and resistance piers. Our underpinning solutions stabilize and lift settled foundations while minimizing disruption to existing structures. This service addresses both residential and commercial buildings experiencing structural movement due to soil instability.
Pile Installation
We install helical piles, micro piles, and grouted anchors for new construction and remedial work. Our deep foundation solutions provide structural support in challenging soil conditions using vibrationless installation methods that preserve surrounding infrastructure while achieving load capacities up to 55 kips per pier.
Environmental Investigations
We perform environmental drilling for monitor wells, vapor extraction systems, and groundwater sampling. Our capabilities include 4"-6" air rotary drilling and direct push sampling up to 50 feet depth. We serve hazardous waste sites with OSHA-certified crews and safety compliance documentation.
Underpinning Services
We provide foundation underpinning using steel piers and helical pile systems to stabilize sinking structures. Our methods reverse settlement movement where possible while maintaining building integrity. This service includes load capacity assessments and customized support solutions for both residential and industrial applications.
People
James A. DeAngelis
Engineering Geologist/President
With over 30 years of subsurface investigation experience, James manages operations and technical execution. He holds a Master of Science degree in geology and maintains professional geologist certification.
Phil DeAngelis
Associate Civil Engineer/Vice President
Phil oversees project coordination and client relations with his civil engineering expertise. He manages technical documentation and ensures compliance with state licensing requirements.
Questions
What geotechnical services do you offer?
We provide test borings, rock coring, subsurface investigations, and geotechnical instrumentation installation for foundation design and analysis.
Do you handle environmental drilling projects?
Yes, we install and monitor environmental wells up to 10" diameter with air rotary drilling capabilities for groundwater and soil sampling.
What foundation repair solutions are available?
We offer helical piles, micro piles, resistance piers, and grouted anchors for settlement correction and structural stabilization.
Which areas do you service?
We operate throughout Southern New England, New York, and New Jersey with specialized equipment for challenging access locations.
How experienced is your team?
Our principals have over 30 years of field experience with continuous operation since 1958 and advanced geological expertise.
