With on-site accredited calibration services performed by trained technicians, our decades of plant experience enables us to provide support for your test and measurement instrumentation equipment calibrations. Whether working under the constraints of an annual shutdown or just normal scheduled calibrations, JJD can assist you in analyzing and ensuring your process control systems are accurate and reliable. Learn More about our calibration and our electrical project capabilities.

JJD's HVAC and Building Automation Group has a broad background working with Mechanical Contractors to assist in getting HVAC and BAS projects completed on-time and within budget. Whether you need an HVAC system that is running at peak efficiency, or an integlligent security system that integrates into your SMART building, JJD has the expertise to make sure the job is done right.

The only way to ensure your solar array is working efficiently is to perform routine proactive maintenance. One bad solar module or one faulty inverter can reduce the array output significantly. Lower output means less SRECS and more power purchased from your utility company. JJD can help by identifying issues, repairing faults and monitoring your system. Find out how we can save you money and help to improve the lifecycle and efficiency of your solar array.

Whether your company is looking to install an outlet or start a large multiphase project, JJD’s Commercial Electrical Group has the tools and manpower to make sure the project meets your budget and timeline.

JJD's Utility Group has a broad background working with Utility and Utility EPC supporting companies on above/below grade substation and transit projects. With licensed electrical contractors, staff certifications in hi-reach and all-terrain forklifts, as well as rigorous safety training, JJD is prepared for today's industry challenges. Need more information?