William Hylund originally founded H&H as a plumbing and gas piping company in 1901. Since then, H&H has grown to include all ... of the skilled trade disciplines. H&H currently employs over 150 personnel in the field with 45 service trucks and 30 in-house staff for support, project management, engineering, and consulting. By bidding work correctly and placing a premium on communication between clients, field crews, project managers, and subcontractors, our attention to detail has led to relationships with customers that have lasted for generations. H&H is a corporation and has an annual construction volume over $20 million. H&H Group Holdings is comprised of the following divisions: • Electric • Plumbing Services • Energy Management • Fire and Security • Solar Energy Services • Wind Energy H&H Group Holdings is a Wisconsin leader in electric, plumbing, energy services, installation, and integrated building solutions. Why have we achieved this success? It is our people. Our team goes above and beyond every day for our customers. H&H provides education and certification opportunities to ensure we have the best for you. read more