Located in Bloomer, Wisconsin, AJ Manufacturing has created an environment of continuous improvement for employees and managers alike. Each day our performance goals of On-Time Delivery, Quality Goods & Innovative Design are first and foremost in meeting our customers’ needs. A customer-driven, niche marketer of innovative insulated door products, AJ Manufacturing was formed with a goal of making the company a premier specialty insulated door manufacturer. Products: HVAC doors and wall panels, commercial entry doors, vinyl windows