Hollibaugh has been serving Allegheny and Butler Counties for over 25 years! Landscape design and installation that makes your property look amazing! Contact Hollibaugh Landscaping and get a FREE estimate on all of our commercial and residential services.Call us now for our 24-hour emergency tree removal, or just have us trim your trees. From mulching, snow removal to excavation youll get personal customer service from our talented landscapers.