★★★★★ 5.0 on Google · 25 reviews · Licensed FL #CFC1434171 · Insured Jacksonville Beaches · St. Johns County · Palm Coast · (904) 754-9877
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Water heaters

Water heater replacement & installation

Leaking tank or a heater past its prime? We replace gas and electric water heaters, often the same day, with the permit, haul-away and cleanup handled for you.

  • 5.0 ★ on Google
  • Licensed FL #CFC1434171
  • Same-day service
  • Owner on every job
New water heaters installed by CMA Plumbing

A new water heater, installed right

When a tank starts leaking from the body or bottom, it can’t be repaired, and it can fail suddenly. We carry common sizes so we can usually swap your old unit the same or next day.

Every installation is brought up to current code: new connections, a properly piped temperature & pressure relief valve, an expansion tank where required, and correct venting for gas units. We remove the old heater and leave the area clean.

When replacement makes sense

Water around the base

A leaking tank body means the inner lining has failed. Replace it before it floods.

10+ years old

Most tanks in our area last about 8–12 years. Plan ahead instead of waiting for a failure.

Rust in the hot water only

Often a sign of internal corrosion in the tank.

Constant repairs

When repairs add up, a new efficient unit usually costs less over time.

Choosing your new water heater

We’ll size it to your household and fuel type.

Most common

Electric tank (40–80 gal)

Reliable and affordable. Common in St. Johns County homes.

Gas tank

Faster recovery for big households. Requires proper venting.

Most efficient

Hybrid heat pump

Much lower running cost for electric homes. Needs space and airflow.

Endless hot water

Tankless (gas or electric)

Compact, long-lasting and never runs out. See tankless water heaters.

What’s included

  1. Sizing & quote

    We confirm size, fuel and code requirements, then plan a clean installation.

  2. Permit

    We pull the permit when your jurisdiction requires one.

  3. Installation to code

    New connections, T&P relief line, expansion tank and pan where required.

  4. Haul-away & walkthrough

    We remove the old unit, test the new one, and show you the shut-offs and settings.

Free estimate on a new water heater*

*Free within a 25-mile radius of our St. Johns office. Tank leaking? Turn off the water to the heater and the power or gas, then call. We’ll take it from there.

Why homeowners choose CMA Plumbing

Licensed & insured

Florida license CFC1434171 and full insurance, for your protection and peace of mind.

The owner does the work

Marian handles your job from the first call to the cleanup. No subcontractors.

Clean, courteous plumbers

We wear shoe covers and leave your space spotless.

Warranty on parts & labor

We stand behind our work with a 100% satisfaction guarantee.

“My water heater rusted out of the bottom and CMA fixed it the next morning in just a couple hours. So I had hot water that afternoon! Wonderful job Marian. Thank you!”

★★★★★Robert Stachura · Google review
CMA Plumbing job photoCMA Plumbing job photoCMA Plumbing job photo

Water Heater Replacement FAQ

How long does a water heater replacement take?

A standard tank swap typically takes a few hours. Tankless conversions or relocations take longer.

What size water heater do I need?

Roughly 40 gallons for 1–2 people, 50 for 3–4, and 65–80 for larger households, but usage matters more than headcount. We’ll recommend the right size.

Do you remove the old water heater?

Yes. Haul-away and disposal of the old unit are included.

Is an expansion tank required?

On many homes with a closed water system, yes. We’ll check and include it in your quote if it’s needed.

Book a visit

Tell us what’s going on. We’ll call you back fast.

For leaks, no hot water or backups, call. You’ll reach the owner, not a call center.

Call or text(904) 754-9877
Service areaJacksonville Beaches, St. Johns County & Palm Coast
Hours
Mon – Fri8:00 am – 8:00 pm
Saturday8:00 am – 5:00 pm
SundayEmergencies only
🚨 Water leaking right now? Shut off the main valve, then call now →

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Plumbing problem right now?

Talk to the owner directly. Most calls get same-day service.

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