RoadGuard Ignition Interlock

Serving Maine, New Hampshire, Eastern Vermont, Central Massachusetts and Northeastern Connecticut with three locations, W.D. Matthews Machinery Company is the industry’s leading full-service material handling and construction equipment dealership. Founded in 1939 as a woodworking machinery and farm implement business, W.D. Matthews has grown into the region’s most trusted provider. Our commitment to quality products, services, and unbeatable customer care is why our family owned and operated company has become the unsurpassed dealer of material handling equipment in the Maine (ME), New Hampshire (NH), Massachusetts (MA), Vermont (VT) and Connecticut (CT) areas.

RoadGuard Interlock offers ignition interlock devices (IIDs) for your car. Our IIDs are reliable and easy to use, and we offer installation services at our location in Manchester, NH. We are committed to helping our customers achieve their ignition interlock requirements and get back on the road.

Smart Start is the #1 Ignition Interlock Device provider in Epsom with same-day installation available for your vehicle. We’re a convenient and affordable New Hampshire IID supplier located in Western Epsom at 1929 Dover Rd with mobile services and price matching available to give you the best value. Our reliable customer service experts and licensed technicians will make your IID device experience quick & low stress. Smart Start is ready to schedule your Ignition Interlock Device installation in Epsom. Call our Western Epsom location & talk to a Program Advisor, who will help you schedule an appointment for your IID installation, calibration or removal.