Garage Door Service, Repair, & Install. Specializing in service on all garage door types. Same day availability in local service areas. Dealing with only the best manufactures available in the industry, GDU chooses to partner with; Martin Door & Amarr-Entrematic. With 20+ years experience, custom installations are effortless and stress free. Our skilled technicians are happy to speak with you about what you're looking for and come out to get accurate measurements for free! Let them guide you through picking the perfect garage door that fits all your wants and needs. Then sit back and let our professional and friendly servicemen take care of everything for you. Quality service, technicians that care, and a locally owned company.