When a commercial boiler goes down, the cost is not the repair — it is the rooms you cannot sell, the kitchen you cannot run, and the inspection you cannot pass. Gallegos Plumbing has kept hot water moving in Ventura County buildings since 1996: family-owned, CA Lic. #1022795, experienced and background-checked technicians, and a flat quote approved before anyone picks up a wrench.
In this climate, the boiler is usually making hot water
Most commercial boiler work here has nothing to do with heating the building. On the coast the space-heating load is small, so the boiler in a Ventura County hotel, gym, or restaurant is typically a domestic hot water plant — a boiler and storage tanks feeding guest rooms, showers, dish pits, and laundry, often with a recirculation loop that never really rests. That matters for diagnosis: a system that runs hard all day fails differently from one that runs three months a year, and it is why "the boiler is fine, your recirculation is not" is a conclusion we reach often.
Where there is genuine hydronic heat — radiant slabs in a spa, fan coils in an older civic building, snowmelt at elevation — we work on that too.
Buildings we work in
Hotels, resorts, and spas; gyms and health clubs; restaurants and food service; assisted living and medical clinics; schools; apartment buildings, HOAs, and the property managers who run them; laundries. If it has a boiler room and a business that stops when the hot water does, we have been in one like it. For everything else on the property, see commercial plumbing.
Commercial boiler repair
The calls we get most: hot water that runs out at peak but recovers overnight, a boiler short-cycling itself toward an early grave, pressure that will not hold, nuisance lockouts that a reset clears until it does not, scale and kettling, leaks at the unit or the near-boiler piping, and a failed circulator that leaves an entire wing cold. Most of these are repairable, and most are symptoms of something upstream — we diagnose the system, not just the fault code, because replacing a boiler that failed from a bad mixing valve buys you the same failure again.
Repair, replace, or resize
There is a third answer that nobody offers and buildings often need. A plant that was right for the building twenty years ago may be wrong for it now — occupancy changed, a kitchen was added, low-flow fixtures cut demand, or the original install was oversized and has been short-cycling ever since. We will tell you plainly which of the three you are looking at, and show you the evidence on your equipment rather than on a brochure.
Installation and replacement
We size to the building’s real demand profile — peak draw and recovery, not just a nameplate — and handle venting, gas supply. Where a high-efficiency condensing unit or a bank of commercial tankless heaters is the better fit than a like-for-like swap, we will say so and explain the trade-off. Replacements are staged and scheduled around your operating hours: overnight, between covers, or wing by wing, so the doors stay open. Straight water-heater swaps live at water heater installation.
Planned maintenance, so it fails on your calendar
Commercial boilers rarely die without warning; they die without anyone watching. An annual service — combustion check, safety and relief valves, scale and water quality, circulators, controls — catches the failing component while it is still a scheduled part instead of a Friday-night emergency at full occupancy. We can put your boilers on the same visit schedule as your backflow certifications and kitchen drain jetting, so one calendar covers the building.
Residential boilers and radiant heat
They are rare here, but they exist — mostly older homes and a handful of custom builds with radiant floors or hydronic baseboards. If that is yours, you already know how few plumbers will touch it. We will, and the same diagnose-first approach applies.
Upfront pricing, and emergencies
You approve a flat, upfront quote before work starts, with the trade-offs laid out plainly. When a building is down we run emergency service including Sundays — if you have no hot water across the property, call rather than wait for Monday.
Where we work
Commercial boiler service across Ventura County, the Conejo Valley, and South Santa Barbara County — including Ventura, Oxnard, Camarillo, Thousand Oaks, Westlake Village, Simi Valley, Moorpark, and Santa Barbara.