Water-heaters

Water Heater Repair in Greenville, SC. Same-Day Service

No hot water? First Class provides fast, professional water heater repair for tank and tankless systems throughout Greenville and the Upstate.

  • Free second opinions at no cost
  • Fully licensed and insured, SC #117789
  • Financing available on qualifying systems, as low as 0%
  • Background-checked technicians
  • Better Business BureauA Rating
  • Locally owned small businessGreenville, SC
  • HVAC Contractor of the YearBusinessRate 2025
Clear flat-rate pricingFree second opinionsBackground-checked techsNo overtime chargesRheem Pro PartnerLicensed #117789

Losing hot water is more than an inconvenience, it disrupts your entire daily routine. First Class Heating & Air provides fast, professional water heater repair in Greenville and surrounding areas for both traditional tank and tankless systems.

Common water heater problems we repair include no hot water, insufficient hot water, water that's too hot, strange noises, leaks, rusty water, and pilot light issues. Our technicians diagnose the problem accurately, explain your options, and complete the repair efficiently.

We service all major water heater brands including Rheem, A.O. Smith, Bradford White, Rinnai, Navien, and more. Whether you have a gas or electric tank system, or a tankless on-demand unit, we have the expertise to repair it.

For Greenville homeowners on well water, mineral buildup is a common issue that reduces water heater efficiency and lifespan. We can flush and descale your system to restore performance and prevent premature failure.

Same-day service is available for most water heater repairs. Call us in the morning and we'll work to get a technician to your home the same day.

Signs You Need Water Heater Repair

No Hot Water

Complete loss of hot water usually indicates a failed heating element, gas valve issue, or pilot light problem.

Lukewarm Water Only

If your water doesn't get hot enough, you may have a failing element, a broken dip tube, or sediment buildup in the tank.

Rusty or Discolored Water

Rusty hot water often indicates corrosion inside the tank. This may be repairable with an anode rod replacement if caught early.

Strange Popping or Rumbling Noises

These sounds typically come from sediment buildup at the bottom of the tank being heated. A flush can often resolve this.

Water Leaking from Tank

Leaks from the tank itself usually mean the inner lining has failed and replacement is needed. Leaks from connections or valves can often be repaired.

What to Expect

1

Call for Service

Describe the problem and we'll schedule same-day service when available.

2

Diagnosis

Our technician inspects your water heater, identifies the issue, and explains your options with upfront pricing.

3

Repair

We complete the repair using quality parts. Most water heater repairs are finished in one visit.

4

Testing

We verify proper operation, check for leaks, and ensure your hot water is restored before leaving.

What We Offer

Tank & Tankless Repair
Same-Day Service
All Major Brands
Flat-Rate Pricing
Element & Thermostat Replacement
Anode Rod Service
Sediment Flushing
Gas Valve Repair

What it costs

Cost depends on the scope of the work and a look at your system. Our pricing page lists what we actually charge for HVAC installation, repair, and maintenance. Estimates on replacements are free.

See the full pricing guide

Ready to Get Started?

Free estimates · No pressure · Flat-rate pricing

What Our Customers Say

Real reviews from Greenville homeowners on Google

"After reviewing nearly a dozen quotes, I felt confident in First Class' knowledge, practicality, and ability to do our full system and ductwork replacement, and they did not disappoint! The whole team was great to work with. Their pricing was competitive and transparent."

Matthew Sansoucy

Google Review

"First Class installed a Rheem 19 SEER system at our home in Boiling Springs. Cameron was extremely professional and knowledgeable, walked us through every option without any pressure. The install crew was on time, clean, and efficient. Our energy bills have already dropped noticeably. Highly recommend!"

Zach Taylor

Google Review

"Tommy, Cam, and the entire crew at First Class renovated our 3,800 sq. ft. office, and we couldn't be happier. The building was originally built in the 1940s, and now it has fully functional heating and air conditioning. 5 stars, 10/10."

Michael Liller

Google Review

Water Heater Repair FAQ

Common questions about water heater repair in greenville, SC.

How much does water heater repair cost in Greenville?

Repair costs depend on the issue. Simple fixes like thermostat or element replacements are affordable, while gas valve or tankless control board repairs cost more. We provide flat-rate pricing before starting any work so there are no surprises.

Should I repair or replace my water heater?

If your water heater is under 8 to 10 years old and the repair cost is reasonable, repair usually makes sense. If it is older, leaking from the tank itself, or needing frequent repairs, replacement is typically the better long-term investment. We will give you an honest recommendation based on the age and condition of your unit.

Do you repair tankless water heaters?

Yes, we repair all major tankless water heater brands including Rinnai, Navien, Rheem, and more. Tankless units require specialized knowledge, and our technicians are trained to diagnose and repair error codes, ignition failures, scale buildup, and flow sensor issues.

How long do water heater repairs usually take?

Most water heater repairs are completed in a single visit, typically within 1 to 2 hours. We carry common replacement parts on our trucks including heating elements, thermostats, anode rods, and gas valves. More complex repairs that require ordered parts may take an additional visit.

Why does my water heater make popping or rumbling noises?

Popping or rumbling noises typically come from sediment buildup at the bottom of the tank being heated and shifting. This is especially common in Greenville homes with hard water. A professional tank flush can often resolve the noise and improve heating efficiency. We recommend annual flushing to prevent sediment accumulation.

Ready for first-class comfort?

Let's get your home comfortable again

Schedule online or call for expert HVAC, generator, and water heater service, backed by a 100% satisfaction guarantee.

Licensed #117789 · Free estimates · Financing available

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