H&L UNDERGROUND  is the leading expert in underground construction H&L completes include an aspect of underground construction. Running directional drills requires experience. to operate such technology. When youâre choosing a contractor, it is crucial to know their history. With H&L, that history is more than a decade of on-site underground construction experience. directional drilling is the most time-saving and cost-effective means of solving underground construction problems. Directional drilling makes a minimum impact on the environment, making it the ideal choice when site disruptions would impact traffic, business access, waterways or a sensitive environment, Let H&L Underground Contractors HELP YOU!