Dieffenbach & Hritz has been a long-standing trusted partner of the Construction Team at CNX Resources. We appreciated the professionalism, dedication and high-quality services provided for our team and would like to thank the Engineers, Surveyors, Inspectors and Additional Staff that have provided pivotal services and have contributed to many successful projects over the past decade. Dieffenbach & Hritz will continue to be a cornerstone for our Site Civil Projects in the future, and we look forward to working together on our upcoming projects.

Dieffenbauch & Hritz services are a step above expectations and they have always delivered timely, high quality and cost effective engineering, survey, environmental and construction inspection support for our operations.

On behalf of the design team at Hope Gas, we appreciate Dieffenbauch & Hritz for their exceptional survey and design services. D&H consistently delivers work of tremendous quality that surpasses our highest of expectations. Their attention to detail, creativity, and expertise have continually impressed us throughout our partnership. With their top-notch designs and accurate surveys, they have become a trusted and valuable partner for us. We genuinely enjoy collaborating with them and look forward to continuing our growing relationship in the future and beyond.

Our team at Longview Power truly appreciates the excellent work we have received from Dieffenbauch & Hritz regarding their drone flyovers, volume calculations, and density tests of our inventory. D&H continuously provides exceptional results and customer service that has become an unmatched asset to our logistical needs. I highly recommend D&H for any company in search of an engineering firm that goes above and beyond for their clients and I have no doubt they will exceed your expectations!

The CNX Permitting Team greatly appreciates the hard work and dedication the D&H staff give to each and every project. D&H’s professional and practical approach to design has exceeded our expectations time and time again. Your staff is knowledgeable and experienced. Your willingness to take on any projects is exemplary, leading the way into uncharted permitting territory. D&H remains to be our one constant design & engineering firm over the 10+ years we have worked together.