(610) 432-8070Family-owned in Allentown since 1988

Water Heater Replacement Services

ICS Heating & Air Conditioning replaces, installs and repairs water heaters in Allentown and across the Lehigh Valley.

Signs it's time to replace your water heater

A gas tank water heater usually lasts 8 to 12 years. These signs mean yours is near the end:

  • The tank is 10 years old or more
  • Rusty or discolored hot water
  • Water around the base of the tank
  • Hot water runs out faster than it used to
  • Popping or rumbling while it heats
  • Rust on the tank, the fittings or the relief valve

A leak from the tank itself can't be repaired. If you see water at the base, turn off the cold water supply to the tank and call us before it gets worse.

Water heaters we install

ICS installs Bradford White and A.O. Smith gas water heaters.

Most homes use a 40- or 50-gallon tank. A larger household, a big soaking tub, or several showers running at once may call for more. We size the new water heater to how your household uses hot water.

Water heater repair

Some problems are worth repairing: a pilot that won't stay lit, a worn thermocouple, a failed gas control valve or a dripping relief valve. We'll tell you whether a repair or a replacement makes more sense for your tank's age.

Replacement day

Most water heater replacements take a few hours. Our technicians:

  • Shut off the gas and water, then drain and remove the old tank
  • Set the new water heater in place
  • Connect the gas line, water lines and venting
  • Install the relief valve and its discharge pipe
  • Fill the tank, light it and check for gas and water leaks
  • Check the venting draft and set the water temperature
  • Take the old tank away
Michael Schrey4 reviewsG
★★★★★November 2025

“The price was very reasonable and the workers professionalism and friendliness was spectacular.”

Matthew Rohrbach1 reviewG
★★★★★November 2025

“Had my water heater replaced by ICS. Great customer service, communication, and absolute professional work all around.”

LKLocal Guide · 76 reviews · 47 photosG
★★★★★July 2026

“They sent a couple techs out this morning. They identified and fixed the problem and saved us from a sweltering day and gave us relief from the terrible heat!”

Jennifer Roscher3 reviewsG
★★★★★November 2025

“Prices are reasonable and they won’t try to “upsell” you on anything you don’t need, which is always appreciated.”

Jodi Eslinger1 reviewG
★★★★★November 2025

“Their pricing is very reasonable and their technicians are very professional and courteous.”

Joshua Edelman22 reviews · 25 photosG
★★★★★April 2026

“Instead of upselling me on a brand new air conditioner like the other heating and cooling companies tried to do, he performed an honest capacitor replacement and had my AC running like new within an hour of diagnosis.”

Lauren Coker8 reviews · 5 photosG
★★★★★November 2025

“Their pricing is fair, and I always feel confident that they’re giving me honest recommendations and taking the best care of my home.”

Keith BendelLocal Guide · 11 reviewsG
★★★★★November 2025

“Installed my boiler and made sure everything works well. Dave came to service my system and was quick and knowledgeable.”

Michael Harden12 reviewsG
★★★★★November 2025

“The entire team was knowledgeable, thorough in their explanations, and maintained a clean workspace throughout the project. They also removed the oil tank efficiently and without any odor.”

Cindy Polzer11 reviewsG
★★★★★March 2025

“They provided excellent service from start to finish: sales, installation, training us on the new smart thermostat and the office support staff. They even completed the rebate forms for me.”

Dave SLocal Guide · 27 reviews · 3 photosG
★★★★★January 2016

“We called ICS and even with a full schedule they were able to visit the same day.”

Darlene Reilly8 reviewsG
★★★★★June 2019

“I was lucky to find such a professional company since they took out an oil burner & replaced it with a gas unit in my other house on South Side of Easton.”

Frequently asked questions

How long does a water heater last?
A gas tank water heater usually lasts 8 to 12 years. Hard water and sediment buildup shorten that.
What size water heater do I need?
Most homes use a 40- or 50-gallon tank. Larger households, a big tub, or several showers at once may need more. We size it at the visit.
How much does it cost to replace a water heater?
It depends on the tank size, the brand, and any venting, gas line or code updates the job needs. You get the price before the work starts.
What should I do if my water heater is leaking?
Turn off the cold water supply to the tank and turn the gas control to Off or Pilot. Then call us. A leak from the tank itself means it needs to be replaced.
Should I drain my water heater?
Draining a few gallons from the valve at the bottom once a year clears out sediment, which makes the tank rumble and heat less efficiently.

Request service

What do you need?

No heat or no cooling right now? Call (610) 432-8070.

Need a new water heater?

Call the office at (610) 432-8070 or send a request online.

1732 W Fairmont StAllentown, PA 18104
Get directions
Office hoursMonday to Friday: 9 AM to 4 PMSaturday and Sunday: Closed
EmergenciesExisting customers can reach our answering service 24/7 for emergency repairs.

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