About Dunn Plumbing Heating & Air Conditioning in Rancho Cucamonga, CA

If you notice unexplained increases in your water bill, damp spots on your floor, or the sound of running water when all fixtures are off, you may have a slab leak—a common local issue due to our soil conditions. Dunn Plumbing has over two decades of experience diagnosing and repairing slab leaks with minimal disruption to your home. We use specialized equipment to pinpoint the leak accurately before performing the necessary repair or re-piping, helping to prevent further damage to your foundation.

We handle all aspects of bathroom plumbing for renovations, including bathtub, shower, sink, and toilet installation or replacement. For older Rancho Cucamonga homes, our team can assess your existing pipes and drainage to ensure everything is up to current code and functioning properly before installing your new fixtures. As a family-owned business with 20 years in the community, we understand the common plumbing updates needed for local homes and provide honest recommendations and free estimates for your project.

For the Rancho Cucamonga area, we recommend scheduling HVAC system maintenance at least twice a year—ideally in the spring before the summer heat and in the fall before cooler weather. This routine check includes cleaning components, checking refrigerant levels, and inspecting electrical connections. Our family-run team provides thorough maintenance to help improve efficiency, extend your system's lifespan, and prevent unexpected breakdowns during peak seasons, all part of our reliable local service.