About RT Olson Plumbing, Heating and Air Conditioning

RT Olson Plumbing, Heating and Air Conditioning has been serving Corona and the surrounding Inland Empire since 2014. The company was built around a straightforward idea: homeowners and property managers dealing with plumbing failures, heating outages, or air conditioning problems in the middle of a Southern California summer deserve a contractor who picks up the phone and shows up prepared — not one who fits them into a schedule three days out.

What we do

On any given day, the work looks like diagnosing a slab leak under a 1980s tract home in Corona Ranch, recharging a system that gave out during a late-September heat spike, or walking a first-time homeowner through why their water heater is making that sound and what it actually costs to fix it. Because we’re available around the clock, calls don’t wait until Monday morning. A burst pipe at 2 a.m. gets the same response as one at noon — someone answers, and a technician gets moving.

A meaningful share of the work involves insurance claims. When a plumbing failure causes water damage or an HVAC issue compounds an existing property problem, we document what we find, photograph affected areas, and work alongside adjusters and restoration contractors so the repair process doesn’t stall while paperwork catches up.

Our certifications and licensure

RT Olson holds California contractor license #997337. That license number is public record — you can verify it through the Contractors State License Board, which tracks whether a contractor is bonded, insured, and in good standing. In California, working without a valid license on jobs above a certain threshold isn’t just a technicality; it affects whether your homeowner’s insurance will cover the work.

Beyond licensure, the team stays current with manufacturer training and code requirements as they evolve — California’s Title 24 energy standards, for instance, affect how HVAC equipment is sized and installed, and those rules update on a regular cycle.

Where we work

Corona sits at the western edge of Riverside County, where the Santa Ana Mountains push against the valley floor and the 91 and 15 freeways converge. The housing stock here ranges from mid-century ranch homes near downtown to large planned communities built out through the 1990s and 2000s. Older homes in the area often have original galvanized supply lines or undersized electrical panels that complicate HVAC upgrades — details that matter when you’re quoting a job honestly.

Beyond Corona, the service area covers much of the Inland Empire, including Norco, Eastvale, Chino Hills, Riverside, and neighboring communities in western Riverside and eastern San Bernardino counties. The region’s dry summers and occasional hard freezes in foothill neighborhoods create a demand pattern that runs year-round — cooling season barely ends before heating season begins.