Water Heater Repair & Installation
Serving homeowners across New Jersey & Staten Island, NY.
Serving homeowners in Manasquan, NJ and surrounding areas, Guaranteed Service is your trusted partner for fast, reliable, and professional water heater solutions. Whether your current unit needs repair, you’re ready to upgrade to an energy efficient water heater, or you need same day installation, our licensed technicians are here to restore your home’s comfort. Backed by our 100% Satisfaction Guarantee, you’ll get service you can trust without surprises or stress.
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Water Heater Installation
WATER HEATER SERVICES AT GUARANTEED SERVICE
New Jersey Water Heater Repair & Installation
Water Heater Services
Your water heater plays a major role in your family’s comfort. From showers to laundry to washing dishes, hot water keeps your home running smoothly. At Guaranteed Service, we provide a full range of water heater services, including:
- Water heater repair
- Water heater installation
- Water heater maintenance
- Water heater tune-ups
- Water heater replacement
Our team works on both tank water heaters and tankless systems, with expertise in electric and gas models. Whether you’re dealing with inconsistent water temperature, high energy bills, or an older unit that’s no longer efficient, we have solutions tailored to your home and budget.
Water Heater Service in NJ
When to Replace Your Water Heater Versus Repair It
Water heaters are appliances that you use every day for many different purposes, from washing your dishes to showering. Your unit goes through an incredible amount of wear and tear over the years, and, over time, will inevitably need to be replaced. Our experienced plumbers can help you determine if your water heater is ready to be replaced and, if so, which type of unit is right for your home. Additionally, they can help to fix your water heater if that is all that is needed.
If your water heater is not working efficiently, you can have it repaired and extend its service life with regular maintenance depending on your make and the quality of the installation.
If a tripped circuit breaker or a blown fuse is not the cause of your water heater's failure, you can have it checked for the following:
- Is the power connected?
- Are sediments present?
- Is the heating element functional?
- Is the pilot light lit properly?
- Is the gas burner clean?
- Is your unit making hissing noises?
- Are all of the fittings tight?
- Is the pressure relief valve leaking?
If your water heater has surpassed the life expectancy suggested by the manufacturer, it is time to replace your unit.
Water Heater Installation
If your water heater is more than 10 to 12 years old, it may be time to replace it. Modern units are far more energy efficient, saving you money over time. At Guaranteed Service, we make water heater installation stress-free with expert guidance on selecting the right system.
We install:
- Traditional tank water heaters
- Tankless water heaters
- Electric water heaters
- Gas water heaters
Our team handles everything, including safe removal of your old unit, installation of new equipment, and any necessary gas line or plumbing adjustments. We’ll also review water heater installation costs up front, so you know exactly what to expect with no surprises on your end.
Need hot water fast? We offer same day water heater installation to keep your household running without disruption.
Points to Consider When Replacing Your Water Heater
When replacing your existing unit, you should consider upgrading to an energy-efficient unit.
Check the following factors to ensure that you make the right choice:
- A heating capacity of at least 40 gallons
- The number of gallons your heater can heat in one hour
- The height and width of the heater to ensure that it fits the space you have
- Check the energy-efficiency ratings of the unit you plan to purchase
- The label on either side of your existing unit will reveal important information like the tank capacity, model, installation guidelines, serial number, wattage capacity, working pressure, and voltage. This information will serve as a guideline when searching for a similar unit or an upgraded version as well.
When you purchase a water heater from Guaranteed Service, you can be sure of:
- Strict adherence to all safety regulations
- Timely replacement of gas safety valves
- Safe installation of both cold and hot water supply lines
- Testing of water pressure, shut off valve, and water delivery rate
- Installation of safety ground for protection against fire hazards
- Disposal of the existing water heater
Tankless Water Heater Repair & Installation
More and more homeowners are upgrading to tankless water heaters. These units heat water on demand, providing endless hot water while taking up less space. They’re also more energy efficient, which could lower monthly bills.
At Guaranteed Service, we specialize in both tankless water heater installation and repair. You could be switching from a tank system or your existing tankless unit needs maintenance.
We’ve got you covered no matter the situation.
Tankless systems require professional expertise to install correctly. Our technicians ensure your gas lines, venting, and water lines are set up for maximum performance and safety. If your unit isn’t working properly, we also provide quick repair and ongoing tankless water heater maintenance to keep your system running smoothly.
Water Heater Repair
When your water heater is not delivering the hot water you need, we provide fast, professional repair services to get things back on track. Common signs you may need water heater repair include:
- Water temperature fluctuations or running cold
- Strange noises like popping or banging from the tank
- Rust-colored water or foul odors
- Water pooling around the unit
- High energy bills from a failing system
Our licensed plumbers diagnose the issue quickly, from a failing dip tube, worn-out anode rod, to a broken thermostat, and provide clear repair options. From gas water heater repair to fixing electric models, our goal is to restore your hot water quickly and affordably.
For emergencies, we offer same day water heater repair across central New Jersey and even into southern New York.
Don't Wait for a Complete Failure
Most people wait for their existing water heater to fail completely before they replace it with a new one simply because they are unaware of the signs of a gradually failing unit. It is crucial that you know when your water heater is on its last leg to avoid damage and disruption.
Signs Your Water Heater Is Failing
Be alert for these indicators that clearly show your existing unit is about to fail:
- Rusty water
- Rumbling sounds
- The heater has sprung a leak
- Hot showers are not as hot anymore
- Having to wait for hot water when taking a shower or using any fixtures in your home
- Temperature problems
- Not enough hot water
- Noises in the tank
- Sediment buildup
- Slow recovery time
If you discover any of these signs, you should start exploring your options to identify a new water heater that best suits your needs.
Local Code Requirements
You'll find many accessories available for your new water heater. Some are required by local codes; others are just good ideas. Plumbing codes vary, so check with your local inspector.
- Gas Shutoff Valve - All codes require a gas valve near the water heater.
- Drip Leg - Any dust or grit in the gas line falls into this short section of pipe before it can reach the water heater's control valve. The required length of the drip leg varies.
- Isolation Valve - All codes require a valve on the cold-water line. Though not required by codes, a second valve on the hotline makes future water heater replacement easier.
- Overflow Pan - Most plumbing codes require a pan and drainpipe in locations where a leak can cause damage. But installing a drain pan is a good idea for any location.
- Expansion Tank - Some codes require an expansion tank to absorb the pressure created when heated water expands.
- Blow Tube - The T&P valve releases pressure, and a "blow tube" directs the scalding hot water toward the floor. The required distance between the blow tube and floor is usually 18 inches or less.
- Water Heater Bonding - New Jersey building codes require a bonding wire be installed between the cold/hot pipes and the gas line. The majority of local codes don't require the bonding wires, but they do serve a purpose. According to experts, bonding wires may actually extend the life of the water heater by diverting electrolysis from the anode rod and tank-even on electric models. So, whether or not your local code calls for the bonding wire, you may want to install one to get the most useful life out of your unit.
Contact Us Today for an Installation or Replacement
Whether you're in the market for a new water heater or your current one needs to be replaced, our heating specialists take the time to ensure that it is installed properly, guaranteed. Our experienced team will work with you to choose the right type of heater that best fits your needs. At Guaranteed Service, your comfort is our priority and we guarantee we'll get the job done right.
WHO WE ARE
At Guaranteed Service, We:

Promise not to mislead or offer any customer products or services that they do not need or want.

Promise to always be ethical and do the right thing, every time.

Promise to take personal responsibility for the satisfaction of every customer and will follow all company policies and procedures at all times.
Guaranteed Service
Our Location
2675 NJ-70 Manasquan, NJ 08736
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- Open 24 Hours
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SEE WHAT OUR CUSTOMERS ARE SAYING
TESTIMONIALS
★★★★★
Very thorough, answered all my questions.
Justin Ebner was the technician that came to my house when I had water leaking from the AC unit. He was courteous and took the time to walk me through the issue. He was very thorough, answered all my questions. I felt very comfortable that the issue was appropriately identified and the appropriate corrective action was taken.
-Suliman C.
★★★★★
Got an estimate in 1 day and install 2 days later. Everything was amazingly smooth and effortless and our new system is fantastic. Love our new thermostats too. We were very pleased, especially right now when people are having so many problems getting supplies and equipment. Already recommended to neighbors.
-Nancy Troske
★★★★★
Professional & Friendly
Truly great service! He was professional & friendly. He is clearly experienced because he installed a water-pressure sub pump backup system for us which is a complicated job. He came back again a couple of days later to replace an old leaking toilet. He was considerate with cleaning up afterwards too. I highly recommend Guaranteed Services & especially Rob.
-Steve Minarik
★★★★★
I Could Not Be Happier with the Service
I am so impressed! I had a water leak and the technician came out to fix my problem shortly afterwards. I could not of been happier with his service. Barry was polite, honest and extremely hard working. I truly appreciate all he did to help me on a bad situation.I highly recommend Guaranteed Services for all your needs. Thanks again!!
-Susan C.
★★★★★
Now we have a great system with a lifetime warranty.
These guys are the BEST. They replaced my old heating and air conditioning with energy star system. I love it. Quick and efficient. AL is a lovely young representative and he explained in detail what we getting. Brian, Tommy and Greg the installers, they worked very clean and they are wonderful. Now we have a great system with a lifetime warranty. Thank you GUARANTEED SERVICE.
-Kay G.
★★★★★
Very thorough, answered all my questions.
Justin Ebner was the technician that came to my house when I had water leaking from the AC unit. He was courteous and took the time to walk me through the issue. He was very thorough, answered all my questions. I felt very comfortable that the issue was appropriately identified and the appropriate corrective action was taken.
-Suliman C.
★★★★★
Got an estimate in 1 day and install 2 days later. Everything was amazingly smooth and effortless and our new system is fantastic. Love our new thermostats too. We were very pleased, especially right now when people are having so many problems getting supplies and equipment. Already recommended to neighbors.
-Nancy Troske
Water Heater FAQs
What are the signs I need water heater repair?
If your water heater is leaking, producing rusty water, making unusual noises, or struggling to heat water consistently, it likely needs repair.
How long does a water heater last?
Traditional tank water heaters typically last 10 to 12 years, while tankless units can last 20 years or more with proper maintenance.
How much does water heater installation cost?
Costs vary depending on whether you choose a tank or tankless system, as well as fuel type (electric vs. natural gas). We provide upfront pricing before any work begins.
What are the benefits of a tankless water heater?
Tankless systems provide unlimited hot water, use less energy, take up less space, and have longer lifespans compared to tank models.
How often should I schedule hot water heater maintenance?
Annual maintenance is recommended to extend the life of your unit, maintain efficiency, and prevent costly repairs.
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AREAS WE SERVE
Monmouth County
Ocean County
Somerset County
Mercer County
Middlesex County
Hunterdon County