Heavy Duty Emissions Testing

At London Custom Truck & Car Repair, we specialize in DriveON emissions testing and repairs for heavy-duty diesel fleets, including large trucks and buses. Our certified technicians ensure your commercial vehicles meet strict provincial emissions standards, safeguarding compliance while reducing environmental impact.

By maintaining your fleet’s emissions systems, you not only avoid costly fines but also extend vehicle lifespan, improve fuel efficiency, and protect air quality across Southwestern Ontario. Many older heavy-duty trucks still on the road today rely on proactive care to minimize pollutants like nitrogen oxides (NOx) and particulate matter—our expertise ensures they operate cleanly and efficiently for years to come.