Licensed, Bonded & Insured • Arizona ROC #357314
Mon–Fri 8 AM–4 PM • Weekends by appointment
Water Heater & Tankless Services
Reliable Hot Water Starts With the Right System and Installation
Oasis Plumbing Solutions services and installs residential and commercial tank, tankless, storage, and related hot-water systems throughout Tucson and surrounding Southern Arizona communities.

Hot-Water Capability
Water Heater Services Built Around the Property
A water heater should be evaluated as part of the complete hot-water system. Capacity, fuel, venting, electrical supply, gas demand, water quality, pressure, drainage, recirculation, installation location, and household or facility usage all affect the right solution.
Tank Water Heater Repair
Diagnosis and selected repairs for serviceable gas and electric storage-type water heaters.
- Heating and ignition concerns
- Valves and accessible connections
- Temperature-related symptoms
- Leak and condition evaluation
Tank Water Heater Replacement
Removal and replacement with a properly selected tank system based on site and usage requirements.
- Gas and electric units
- Connections and shutoffs
- Drain pans and discharge
- Venting and code corrections
Tankless Service & Repair
Evaluation, maintenance, and selected repair of compatible tankless water-heating equipment.
- Error and performance review
- Descaling and maintenance
- Filters and accessible valves
- Flow and temperature concerns
Tankless Installation
New or replacement tankless systems evaluated for demand, utilities, venting, drainage, and location.
- Proper system sizing
- Gas or electrical requirements
- Venting and condensate
- Service-valve arrangements
Commercial Hot Water
Selected commercial water-heating, storage, recirculation, distribution, and planned replacement work.
- Commercial tanks and storage
- Multiple-unit arrangements
- Recirculation systems
- Shutdown coordination
Hot-Water System Improvements
Corrections and upgrades to accessible components that support safe, reliable operation.
- Shutoffs and supply piping
- Temperature and pressure discharge
- Expansion and pressure considerations
- Gas connection corrections
Tank or Tankless?
The Better Choice Depends on the Building and Its Priorities
There is no single best water heater for every property. The existing utilities, usage patterns, installation cost, available space, maintenance expectations, and desired recovery or flow all matter.
Conventional Tank Systems
- Familiar operation and replacement path
- Stored hot water ready for peak demand
- Often simpler when replacing an existing tank
- Available in multiple fuel types and capacities
- Requires space for the storage vessel
- Condition and age affect leak risk
Tankless Systems
- Heats water as flow is detected
- Compact wall-mounted equipment
- Can support long-duration use when sized correctly
- May require gas, electrical, venting, or condensate changes
- Flow and temperature rise determine capacity
- Routine service is important, especially with hard water

Maintenance & Condition
Small Warning Signs Can Point to Larger Equipment Decisions
Water-heater service begins with the symptoms and visible condition. Age, leakage, corrosion, maintenance history, water quality, installation details, available parts, and the surrounding plumbing all affect whether repair or replacement is practical.
Installation Details Matter
Hot Water Equipment Depends on More Than the Tank
The complete installation should be reviewed for the equipment, fuel, location, manufacturer requirements, and applicable standards.
Fuel & Power
Gas supply, shutoffs, sediment protection, electrical circuits, disconnects, and equipment demand must match the installation.
Venting & Combustion
Gas equipment may depend on correct vent material, sizing, clearances, termination, and combustion-air conditions.
Temperature & Pressure Relief
Relief valves and discharge piping are essential safety components and should not be capped, blocked, or altered improperly.
Drainage & Condensate
Pans, drains, condensate treatment, and discharge routes depend on equipment and installation location.
Water Pressure
Excessive pressure, thermal expansion, failed control components, and closed-system conditions can affect reliability.
Manufacturer Requirements
Clearances, startup, service, materials, venting, and warranty conditions vary by model and application.
What to Expect
From Hot-Water Problem to Practical Next Step
Share the Symptoms
Tell us the fuel type, equipment age if known, location, symptoms, and visible conditions.
Evaluate the System
Review the heater and accessible connections, utilities, venting, drainage, pressure, and site conditions.
Review the Options
Discuss whether repair, maintenance, replacement, or a different system makes practical sense.
Complete Authorized Work
Proceed with the agreed scope, equipment, corrections, testing, and operating checks.
Water Heater Questions
Useful Information Before Scheduling
Do you install both tank and tankless water heaters?
Yes. The appropriate option depends on the building, fuel or power available, demand, location, venting, drainage, budget, and long-term priorities.
Should I repair or replace my water heater?
That decision depends on age, condition, leak source, repair history, parts, safety, efficiency, installation issues, and expected remaining service life.
Can you flush or descale the system?
Yes, for compatible and properly functioning equipment. Maintenance cannot reverse vessel failure, severe corrosion, unsafe conditions, or existing damage.
Do you provide 24/7 no-hot-water service?
Not currently. Requests received after 6 PM are reviewed the next business day. If water is actively leaking, shut off the water and energy source only when it is safe to do so.
Restore Reliable Hot Water
Tell Us About Your Water Heater
Share the property location, system type, symptoms, approximate age, and available photos. Oasis will help identify the appropriate next step.