Water heater help in Central Florida
Water Heater Expansion Tank Installation in Orlando & Central Florida
Tell us what is happening. We will find the cause, explain your options, and handle water heater expansion tank with care.
65+ years serving Central Florida
Licensed local service team
Fast scheduling and clear communication
Service Overview
Water Heater Expansion Tank With Clear Answers Before Work Begins
If your home is on a closed plumbing system — which is now required by most Central Florida municipalities — your water heater needs an expansion tank to safely handle thermal expansion. Every time water heats up, it expands. Without a tank to absorb that pressure, the excess force has nowhere to go. Over time, this leads to stress on your water heater, worn-out pressure relief valves, leaking pipes, and costly damage that could have been easily prevented. Many homeowners don't know there's a problem until something fails.
Lapin Services has been protecting Central Florida homes and businesses since 1958. Our licensed plumbing technicians install, inspect, and replace expansion tanks on all water heater types — ensuring your system meets code, operates safely, and lasts as long as possible. With a 4.9-star Google rating from more than 1,000 customers and 200+ years of combined technical expertise on our team, we bring unmatched reliability to every job — no matter how straightforward or complex.
Problems We Solve
Common Water Heater Expansion Tank Problems We Fix
You do not have to diagnose the problem yourself. These are common issues we help confirm, explain, and repair.
No Expansion Tank on a Closed System
Florida code now requires expansion tanks on closed-loop plumbing systems, yet many older homes were never updated. Running without one puts constant pressure stress on your water heater, valves, and supply lines every single day.
Worn or Waterlogged Expansion Tank
Expansion tanks have a limited lifespan and can become waterlogged over time — meaning the internal bladder has failed and the tank no longer absorbs pressure. A waterlogged tank provides zero protection and needs immediate replacement.
Pressure Relief Valve Constantly Releasing
If your T&P (temperature and pressure) relief valve drips or releases frequently, it's often a sign that thermal expansion pressure has nowhere to go. An expansion tank relieves that pressure before it ever reaches the valve.
Undersized or Incorrectly Installed Tank
An expansion tank that's the wrong size for your water heater capacity — or installed at the wrong location or pressure — won't protect your system effectively. Proper sizing and placement are critical for safe, code-compliant operation.
Failed Inspection or Permit Requirement
Water heater replacements in Orange, Osceola, Seminole, and surrounding counties often require a properly installed expansion tank to pass inspection. Lapin handles permits and ensures your installation meets all local code requirements.
When to Call
Signs Your Water Heater Needs Professional Attention
If you notice any of these signs, call Lapin. We will find the cause and explain what needs to happen next.
Your Home Has a Pressure Reducing Valve (PRV)
A PRV creates a closed plumbing system by preventing water from flowing back to the municipal supply. If your home has one and you don't have an expansion tank, code likely requires one — and your system may already be under excess stress.
Your T&P Relief Valve Is Dripping or Leaking
A relief valve that frequently trips or drips isn't just wasting water — it's a warning sign that pressure in your system is exceeding safe limits. An expansion tank is often the correct fix before valve damage worsens.
You're Having a New Water Heater Installed
Most water heater installations in Central Florida now require an expansion tank by code. If you're replacing your water heater, Lapin will ensure the expansion tank is properly sized, installed, and documented at the same time.
You Hear Banging or Knocking in Your Pipes
Pressure fluctuations caused by thermal expansion can create banging or "water hammer" sounds in your pipes. If you notice this — especially after the water heater runs — an expansion tank may resolve the issue.
Your Water Heater Is Over 8–10 Years Old with No Tank
Older water heaters that have operated without an expansion tank on a closed system have likely experienced years of unnecessary pressure cycling. Adding a tank now can extend the remaining life of your water heater and prevent premature failure.
Our Process
What to Expect From Your Water Heater Expansion Tank Visit
Tell us what is happening. We arrive prepared, explain the work clearly, and give clear pricing before work begins.
Step 1
Tell Us What Is Happening
Call or request service. You do not have to know exactly what failed; describe what you see, smell, hear, or need done.
Step 2
We Find the Cause
A Lapin technician or crew checks the issue, reviews the project, and explains what needs to be done in plain language.
Step 3
You Approve the Work
You get clear pricing and options before work begins, so you can make a confident decision.
Step 4
We Handle It With Care
We complete the approved work, respect your home, business, or jobsite, and keep you informed.
Step 5
We Stand Behind the Job
Before we leave, we confirm the work, answer questions, and make sure you know what to expect next.
Why Lapin
Why Central Florida Chooses Lapin for Water Heater Expansion Tank
Our name is on every job. We respect your time, budget, property, and trust.
65+ Years of Plumbing Expertise
Lapin has served Central Florida since 1958. Our name is on every job, and we do the work in a way we can stand behind.
Clear Communication
We explain what we find, what it means, and what your options are before work begins.
Respect for Your Property
We protect the home, business, property, or jobsite and treat people the way we would want to be treated.
The Right Team for the Work
We handle plumbing, septic, drains, sewer, underground utilities, commercial service, and serious project work.
Care When It Matters
Every call affects a family, tenant, customer, business, property, or project. We do not take that lightly.
Related Services
Related Services
FAQs
Water Heater Expansion Tank FAQs
What is a water heater expansion tank and what does it do?
A water heater expansion tank is a small pressurized vessel connected to your water heater’s supply line. When water heats up, it expands in volume — in a closed plumbing system, that expanded water has nowhere to go. The expansion tank provides a safe space to absorb that excess pressure, protecting your water heater, pipes, and fixtures from premature wear and failure.
Does my Orlando home actually need an expansion tank?
If your home has a pressure reducing valve (PRV) or a backflow preventer — which creates a closed plumbing system — Florida plumbing code requires an expansion tank on your water heater. This applies to most newer homes and many updated older homes throughout Orange, Osceola, Seminole, and surrounding Central Florida counties. Our technicians will assess your system and let you know exactly what’s required.
How do I know if my expansion tank has failed?
A failed expansion tank often feels heavy and full of water when you tap it — that means the internal bladder has ruptured and the tank is waterlogged. Other signs include a T&P relief valve that drips frequently, fluctuating water pressure, or banging sounds in your pipes. If you’re unsure, a Lapin technician can test your expansion tank during any service visit.
How long does a water heater expansion tank last?
Most expansion tanks last between 5 and 10 years, depending on water quality, system pressure, and usage. They should be inspected periodically and replaced when they show signs of failure. When Lapin installs a new water heater, we assess the existing expansion tank and recommend replacement if it’s nearing the end of its service life.
Can I install a water heater expansion tank myself?
Expansion tank installation requires proper sizing based on your water heater’s capacity and system pressure, correct placement on the cold water supply line, and accurate pre-charge pressure setting. Improper installation can void your water heater warranty and fail code inspection. Florida also requires a licensed plumbing contractor for permitted water heater work — our team handles the entire process correctly and legally.
How much does expansion tank installation cost in Orlando?
The cost of expansion tank installation depends on the tank size needed, your water heater type, and whether any additional work is required. Lapin provides upfront, transparent pricing before any work begins — no surprises. Call us at (407) 326-3367 or request service online for a straightforward quote.
What size expansion tank do I need for my water heater?
Expansion tank sizing depends on your water heater’s storage capacity (in gallons), your incoming water pressure, and the pre-charge pressure of the tank. A 40–50 gallon water heater typically uses a 2-gallon expansion tank under standard pressure conditions, while larger systems may require a bigger tank. Our licensed technicians size and configure the right tank for your specific system — never a one-size-fits-all guess.
Do you handle permits for expansion tank installation in Central Florida?
Yes. When a permit is required — such as during a full water heater replacement — Lapin manages the permitting process from start to finish. We coordinate with local building departments, ensure the installation meets all applicable codes, and provide the documentation you need. You won’t have to chase down paperwork or deal with inspectors on your own.
Schedule Service
Tell Us What Is Happening
Call Lapin or request service. We will get the right team moving, explain your options, and handle the work with care.