Why hire a contractor from henderson brothers? Contractors at Henderson Brothers Company Incorporated are licensed, and our company is fully insured. When you call us, you are getting over 100 years of experience and know-how. We understand HVAC and plumbing systems inside out.How do i contact henderson bros for a free home inspection? If you need to speak to one of our experts about a heating, cooling, or plumbing system issues, please call today at (209) 340-0933 or use our online form to schedule a free in-home estimate. Our mission is to carry on the tradition of integrity and quality service that was started in 1896 when Henderson Bros. was founded.Why choose a career with answerhenderson brothers? Henderson Brothers goes to heroic lengths to provide our customers with peace of mind. Because you can't expect what tomorrow may bring. That's why you have us. Henderson Brothers offers services in personal, commercial and employee benefits.