Rinnai gas hot water unit on house with plants to the side

NEVER RUN OUT OF HOT WATER AGAIN

Alan Jamieson: Jason impressed us with his professional approach, time management and technical competency. Our experience with JVS Gasfitting has been excellent.

0800 587 427info@jvsgasfitting.co.nz

Gas Hot Water Installations, Servicing & Replacements

Need to upgrade, repair, or switch to gas hot water? We’ve got you covered.

Every job is completed by Jason, your Licensed Certifying Gasfitter with 280 reviews.

Expect safe, reliable solutions, tailored to your home and water usage.

We provide free, no-obligation quotes Auckland-wide, with transparent pricing and no hidden costs.

PREFER TO TEXT JASON?

Got a question or ready to book a quote?

Call or email us for a quick friendly response.

0800 587 427

HEAR FROM SOME OF OUR HAPPY CLIENTS

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NEW GAS HOT WATER INSTALLATIONS

From $3375.25 inc gst

REPLACEMENT GAS HOT WATER INSTALLATIONS

From $2328.75 inc gst

GAS HOT WATER SERVICE

From $293.25 inc gst

Get Hot Water on Demand

If you're looking for a reliable, energy-efficient hot water system, a Rinnai instantaneous gas hot water system is an excellent choice for your home.

At JVS Gasfitting, we recommend Rinnai continuous flow hot water systems because they heat water only when it's needed, providing endless hot water while helping to reduce energy costs.

Whether you're replacing an existing system or installing gas hot water for the first time, we'll help you choose the right Rinnai model and ensure it's installed safely and professionally.

Call us on 0800 587 427 or email info@jvsgasfitting.co.nz to book a consultation or request a free quote.

What Affects the Cost of a Gas Hot Water Installation?

One of the first questions we're asked is, "How much does it cost to install a gas hot water system?" The answer depends on your home and the installation requirements.

The cost can vary depending on the unit you choose, the amount of gas piping required, and the complexity of the installation. The location of the unit is also important, as installation regulations require specific clearances from windows, heat pumps, and other structures to ensure the system is safe and compliant.

To provide an accurate quote, we carry out a free on-site assessment. This allows us to assess your property, discuss the best installation options, and provide a detailed, transparent quote with no hidden surprises.

Call 0800 587 427 or email info@jvsgasfitting.co.nz to book your free on-site assessment.

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Transparent Pricing

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Servicing Auckland Wide

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20+ years experience

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250+ 5 Star ratings for Jason alone!

Is Your Hot Water System Showing Its Age?

Has your gas hot water system stopped working or no longer keeping up with your household's needs? If so, it may be time to consider a replacement.

Whether your current unit has broken down or you're upgrading to a more reliable or higher-capacity system, we can help you choose the right solution for your home.

To help you plan ahead, we've provided a starting price guide below, giving you an idea of the typical costs involved in replacing a gas hot water system in Auckland.

Call 0800 587 427 or email info@jvsgasfitting.co.nz to discuss the best replacement options for your home.

Thinking about switching to gas or upgrading your gas hot water? Let’s chat about the best option for your home.

LET'S CHAT

Regular servicing helps ensure safe, efficient, and dependable hot water for your home.

Using gas to heat your water is a cost-effective and efficient choice but like any gas appliance, your gas hot water system needs regular maintenance to keep it running safely and at peak performance.

Over time, even the best units can lose efficiency or develop safety issues. That’s why we always recommend booking a regular gas hot water service. Servicing helps catch potential problems early, ensures your unit is operating efficiently, and makes sure you're not paying more for gas than you need to.

It’s important that your gas hot water unit is checked by a licensed and registered gasfitter not just for safety, but to meet compliance standards.

At JVS Gasfitting, we’ve been servicing and installing gas hot water systems across Auckland for years. When we service your unit, we also provide a gas safety certificate, which is often required for insurance purposes.

Call 0800 587 427 or email info@jvsgasfitting.co.nz to book your gas hot water service today and keep your system running safely and efficiently.

FAQ

Reasons to choose a gas hot water system

Instantaneous (or continuous flow) gas hot water systems offer a smart, energy-efficient way to heat water in your home. Here are some of the key benefits:

✅ Endless Hot Water – Water is heated only when you need it, so you’ll never run out, perfect for busy households.

✅ Energy Efficient – No need to keep a full tank heated all day, helping reduce gas usage and lower your energy bills.

✅ Compact & Space-Saving – Wall-mounted units are sleek and take up far less space than traditional hot water cylinders.

✅ Reliable Performance – With fewer moving parts than storage systems, they’re known for long-lasting, low-maintenance operation.

✅ Precise Temperature Control – Many models include digital controllers, letting us set the correct water temperature for comfort and safety.

How much does it cost to install a gas hot water system in Auckland?

Installation costs can vary depending on the type and size of the unit, how much piping is required, and the complexity of the job. We offer free on-site assessments to provide an accurate quote tailored to your home. This way there are no surprse costs at the end of the job and you're not paying more than what is required for your job.

What’s the difference between instantaneous and storage gas hot water systems?

Instantaneous (or continuous flow) systems heat water only when you need it, making them more energy-efficient than storage systems that keep a tank of water heated at all times.

How often should a gas hot water system be serviced?

We recommend having your system serviced every 1–2 years by a licensed gasfitter to ensure it’s running safely and efficiently. Regular servicing can also extend the lifespan of your unit and keep gas costs down. Its important to follow the manufactures servcing requirements which can be found in their installation instructions.

What size gas hot water system do I need?

The right size depends on how many people live in your home and how many bathrooms you have.We’ll help you choose the right system based on your household’s needs.

Can I replace an electric hot water cylinder with a gas system?

Yes, you can switch from electric to gas, and many homeowners do to enjoy the benefits that gas hot water provides. We'll assess your property to determine the best installation approach and ensure compliance with gas fitting regulations.

How long does a gas hot water system last?

With regular servicing, a Rinnai gas hot water system can last up to 20 - 25 years. We can advise you on when it’s time to consider a replacement based on performance and age.

GAS HOT WATER GALLERY