D. F. Wilby Tree Surgeons is a family business owned and operated by David Wilby. David holds the highest craftsman qualifications in the industry. Born and raised in Ireland; David has been caring for trees since 1984. D.F. Wilby Tree Surgeons offers all tree related services including tree removals, pruning, stump grinding, deep root fertilizing, insect and disease control, planting, consulting and tree reports. We are fully insured, meet and exceed safety and industry standards. Qualified and certified Arborists 24 hour emergency service. Competitive Pricing. We provide full arboricultural services for residential, commercial and municipal clients in the Halton and Peel areas - Burlington, Waterdown, Oakville, Mississauga and surrounding areas.