Water Heaters
Commercial Water Heater Repair & Installation in Miami
Zaldak Maintenance repairs, replaces and installs commercial water heaters across Miami-Dade and South Broward, covering tank and tankless units, electric and gas, for restaurants, offices, condos and multifamily buildings, with flushing and inspection programs and 24/7 response when hot water fails.
Hot water is a business requirement
Restaurants need hot water to stay open under health code. Gyms, salons and clinics can't run without it, and in condos and apartments a failed central heater generates a stream of resident calls within the hour. Water heaters also fail in ways that cause damage: a corroded tank can leak slowly into a utility room or burst outright onto the floor below.
South Florida water carries minerals that settle as sediment in tank heaters and scale in tankless heat exchangers. That build-up shortens equipment life and cuts efficiency, which is why flushing and descaling are the core of our maintenance work.
What we handle
- Diagnosis and repair: elements, thermostats, gas valves, igniters, anode rods
- Leaking tanks, relief valves and expansion tank problems
- Same-capacity replacement of failed tank water heaters
- Tankless water heater installation, conversion and descaling
- Recirculation pumps and long hot-water wait times
- Annual flushing, anode checks and safety valve testing
Tank or tankless for a commercial building?
Neither is always better. A kitchen with heavy simultaneous demand might need multiple tankless units or a large storage heater; a small office restroom may be best with a compact point-of-use heater. We size the replacement to the actual demand and check gas supply, venting and electrical capacity before quoting. For cost background, see our guide below.
| Factor | Tank (storage) | Tankless (on-demand) |
|---|---|---|
| Upfront cost | Lower | Higher, especially with gas or electrical upgrades |
| Peak demand | Limited by tank size and recovery | Continuous, sized by flow rate |
| Space | Large footprint | Wall-mounted, compact |
| Maintenance | Annual flush, anode checks | Regular descaling in hard water |
| Typical lifespan | Shorter | Longer with descaling |
Who we install and maintain for
Restaurants and hospitality venues, office buildings, medical offices, condo associations with central plants or common-area heaters, and apartment communities that replace in-unit heaters at turnover. Managers with many units get a schedule that replaces heaters by age and condition rather than one emergency at a time.
No hot water or a leaking tank
A leaking tank or no hot water in an occupied building gets the same 24/7 dispatch as any other plumbing emergency, with a typical response of about two hours. We make the situation safe, shutting off water and gas or power, and then quote the repair or replacement before going further.
Included
What you get
- Licensed in-house plumbers
- Tank and tankless, gas and electric
- Sized to real demand, not guesswork
- Replacement quoted before work starts
- Flushing and descaling programs
- 24/7 response to leaks and failures
FAQ
Questions we get asked
How long does a water heater last in Florida?
Tank water heaters in South Florida commonly last around 8 to 12 years, and tankless units can last longer with regular descaling. Hard water, heavy use and skipped maintenance shorten both.
Should I repair or replace a commercial water heater?
Replace it if the tank itself is leaking, because a corroded tank can't be repaired. If the unit is near the end of its expected life and needs a major part, replacement is usually the better value. Elements, thermostats and valves on a younger unit are normally worth repairing.
Is a tankless water heater worth it for a business?
Often, if demand is steady and space or energy cost matters. Tankless units cost more to install and need regular descaling in hard water, but they provide continuous hot water and take up less room. We compare both options against your actual demand.
How often should a water heater be flushed?
At least once a year in most commercial settings, and more often where water is hard or use is heavy. Flushing removes sediment that reduces efficiency and shortens tank life.
How much does water heater installation cost?
It depends on the type, capacity, fuel and whether gas lines, venting or electrical need upgrading. We quote the full scope before work begins; our blog covers typical cost factors in Florida.
Get started
Let's get it
handled.
Tell us what your property needs. You'll get a clear, honest quote — and one team that owns the result from start to finish.