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Business Details
50+ Years
experience
Your Trusted Foundation Drilling Partner
For nearly eight decades, Mahaffey Drilling has stood as a pillar of excellence in foundation drilling solutions. Our journey began in the 1920s with J.R. Mahaffey's vision before evolving into the specialized company our namesake founder established in 1946. This multigenerational legacy has positioned us as industry leaders in addressing complex foundation challenges through advanced technical methodologies. Our expertise in segmental casing, oscillators, and polymer drilling fluids enables us to deliver reliable solutions for diverse subsurface conditions. We maintain a rigorous commitment to equipment excellence by operating Tier 4 Final drill rigs and implementing a comprehensive maintenance program that ensures optimal performance and environmental responsibility. Safety forms the cornerstone of our operations, with all personnel completing OSHA 30 certification and specialized training in critical safety protocols.

Our team combines deep technical knowledge with extensive field experience, many representing second-generation Mahaffey employees who uphold our tradition of precision and reliability. This enduring commitment to quality and innovation has made us a trusted partner for commercial and residential foundation projects across challenging environments. As a certified Disadvantaged Business Enterprise and Minority/Women-Owned Business Enterprise, we bring both technical expertise and community values to every project. Whether executing new construction foundation drilling or specialized pile mitigation services, we deliver solutions that embody our core principle: better tomorrows are built on strong foundations.
Services
Foundation Piles Drywell Drilling Belled Caissons Seismic Retrofitting Hillside Stabilization Environmental Drilling Pile Mitigation Earth Retention Equipment Rental Specialized Drilling
Details
  • Year established: 1946
Highlights and features
  • We maintain ISO-level equipment standards with Tier 4 Final drill rigs
  • Our team completes OSHA 30 certification with specialized safety training
  • Fourth-generation family ownership ensures continuous technical expertise
  • Certified Disadvantaged Business Enterprise with multiple diversity certifications
  • We recycle fleet equipment to ensure cutting-edge technology availability
Associations and certifications
  • ISNetworld
  • DBE
  • MBE
  • WBE
  • SBE
  • CBE
  • LSBE
Services
Foundation Piles
Our foundation pile services deliver durable subsurface support for commercial and residential structures. Using advanced drilling methodologies, we install load-bearing piles that withstand challenging soil conditions and seismic activity. Our technical expertise ensures optimal pile placement and structural integrity for long-term stability.
Belled Caissons
Specializing in belled caissons for deep foundation support, our team creates expanded-base foundations that distribute structural loads safely. This technique provides exceptional uplift resistance and stability in variable soil conditions for critical infrastructure projects.
Pile Mitigation
Our pile mitigation services address foundation issues through comprehensive assessment and targeted remediation. When testing reveals concerns, we implement specialized solutions to restore pile integrity while maintaining structural safety and compliance standards.
Hillside Stabilization
We provide hillside stabilization solutions that prevent soil movement and protect structures on inclines. Utilizing specialized drilling techniques, we install reinforcement systems that maintain slope integrity while minimizing environmental impact during construction.
Environmental Drilling
Our environmental drilling services combine technical precision with ecological responsibility. Using polymer drilling fluids and Tier 4 Final equipment, we minimize environmental impact while completing complex projects like landfill gaswell drilling and seepage control systems.
People
Don H. Mahaffey
Founder
Don H. Mahaffey established the company in 1946, building on his father's foundation to create a specialized drilling operation that would become an industry leader in foundation solutions.
J.R. Mahaffey
Founder
J.R. Mahaffey pioneered foundation drilling expertise in the 1920s, creating the family legacy that would evolve into the specialized drilling company his son would later establish.
Questions
What foundation drilling services do you offer?
We provide commercial and residential foundation piles, belled caissons, seismic retrofitting, hillside stabilization, environmental drilling, and specialized pile mitigation services.
How does Mahaffey handle challenging subsurface conditions?
We use advanced methodologies including segmental casing, oscillators, and polymer drilling fluids to address complex subsurface challenges effectively.
What safety certifications does your company have?
Our personnel complete OSHA 30 certification with additional training in Fall Protection, Rigging, Silica Awareness, and Situational Awareness. We maintain ISNetworld certification.
What equipment does Mahaffey use for drilling projects?
We exclusively operate Tier 4 Final drill rigs, including Bauer BG28H and Watson models, ensuring performance and environmental responsibility.
Where are your service areas located?
While we operate nationwide, we maintain strong certifications in California including Caltrans DBE/SWBE/SMBE #43116 and LA Metro SBE/DBE #7450.
What makes Mahaffey different from other drilling companies?
Our fourth-generation family ownership, equipment modernization program, and comprehensive safety framework set us apart as industry leaders in foundation drilling solutions.