Instantaneous Gas Hot Water Systems in Perth

Endless Hot Water, Heated Only When You Need It
 

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PERTH COMPLETE ELECTRICAL

Hot Water for Your Family Fast

Instantaneous (continuous flow) gas hot water systems heat water on demand as it passes through the unit – so you never run out, and you never pay to keep a tank hot. Perth Complete Electrical supplies and installs leading continuous flow units, removes your old system, and diagnoses faults on systems that aren’t performing. Prices are quoted for a standard installation, and any additional work is always priced and approved with you before we begin.

PERTH COMPLETE ELECTRICAL

Why Choose Instantaneous Gas Hot Water

Continuous flow systems suit households that want efficiency, space savings and hot water that never runs out.

Endless Hot Water

Water is heated as you use it, so back-to-back showers and busy mornings never leave anyone in the cold.

Lower Running Costs

No storage tank means no standby heat loss - you only pay for the hot water you actually use.

Compact, Wall-Mounted Design

Continuous flow units mount neatly on an external wall, freeing up the space a bulky storage tank once occupied.

Precise Temperature Control

Optional controllers let you set exact water temperatures for kitchens, bathrooms and family-safe showering.

Long Service Life

Quality continuous flow units typically outlast storage tanks, with readily available parts and simple servicing.

Safer for Families

Temperature-limited delivery reduces scald risk, and sealed combustion keeps the unit safe outdoors.

The right continuous flow unit, correctly sized and professionally installed, delivers years of efficient, reliable hot water.

Licensed and Qualified

Every job is carried out by fully licensed Perth electricians you can trust.

Workmanship Guaranteed

We stand behind our work for life, so you only pay for it once.

100% Solutions Focused

Whatever the problem, we don't leave until you have a safe, working fix.

Fast Local Response

Perth-based team on the road daily, with same-day service for urgent faults.

PERTH COMPLETE ELECTRICAL

Is Instantaneous Gas Right for Your Home?

We assess a few key factors before recommending a continuous flow system.

Household Size & Usage

Flow rates are matched to your household - how many bathrooms you have and how often hot water is used simultaneously.

Gas Supply & Meter Capacity

We confirm your gas supply and meter can deliver what a continuous flow unit needs, and arrange upgrades where required.

Location & Ventilation

Units need a suitable external wall position with correct clearances - we find the spot that keeps pipe runs short and efficient.

Temperature Controllers

Kitchen and bathroom controllers add convenience and safety - we advise where they are worth including.

If instantaneous isn’t the right fit, we’ll say so – and recommend the storage system that suits your home better.

PERTH COMPLETE ELECTRICAL

Our Instantaneous Gas Hot Water Services

New System Supply & Installation

We supply and install quality instantaneous gas systems sized correctly for your household, including gas fitting, valves, and any electrical connections – installed to Australian standards and manufacturer specifications.
Hot water system

Old System Removal & Changeovers

Switching from a storage tank to continuous flow? We disconnect and remove your old system, dispose of it responsibly, and complete the changeover including relocating pipework where needed.

Diagnostics & Fault-Finding

Error codes, fluctuating temperatures or no hot water at all? We diagnose ignition, flow sensor, gas supply and temperature faults, and give you a clear repair-or-replace recommendation.
PERTH COMPLETE ELECTRICAL

Explore Our Hot Water Systems

Perth Complete Electrical

Explore Our Residential Electrical Services

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Lighting Design and Upgrades


Good lighting enhances comfort, security, and energy efficiency. We install LED upgrades, pendants, outdoor lighting, and sensor systems. Our team helps you choose the right lighting to match your needs, improving…

ResidentialSwitchboard Upgrades

Switchboard Upgrades


Upgrading outdated switchboards to improve safety, compliance, and capacity, helping your home support modern appliances and increasing overall electrical reliability.

ResidentialPower Point Installations

Power Point Installations


Supply and installation of standard, weatherproof and USB power points across Perth homes. Standard installation pricing is quoted up front – $200 + GST for a standard power point – with any additional work always…

ResidentialCeiling Fan Installation

Ceiling Fan Installation


Professional installation of ceiling fans with secure mounting and compliant wiring to improve airflow, comfort, and energy efficiency throughout your home.

ResidentialSafety and Compliance Inspections

Safety and Compliance Inspections


Electrical safety is our priority. We conduct comprehensive inspections to identify hazards such as outdated wiring, overloading, or faulty switchboards. After testing, we provide clear recommendations and reports to…

ResidentialElectrical Repairs and Maintenance

Electrical Repairs and Maintenance


We repair electrical faults, replace damaged wiring, and restore power safely. Regular maintenance helps prevent breakdowns, extend system life, and maintain compliance with safety standards. Whether it’s a tripping…

ResidentialRewiring and Upgrades

Rewiring and Upgrades


Full and partial house rewiring for Perth homes. We replace ageing and unsafe wiring, upgrade circuit protection, and bring your electrical system up to current standards with minimal disruption.

ResidentialRenovations and Rewiring

Renovations and Rewiring


When renovating or extending your home, proper electrical planning ensures everything works seamlessly. We design and install new circuits, lighting layouts, and outlets, coordinating with builders for smooth…

ResidentialSmoke Alarm Installation

Smoke Alarm Installation


Smoke alarm supply, installation, testing and replacement for Perth homes. Smoke alarm supply and install is $185 + GST for a standard installation, with hard-wired and compliant units fitted by licensed electricians.

ResidentialAir Conditioning Services

Air Conditioning Services


Air conditioning electrical services across Perth – split system, ducted and evaporative. We handle dedicated circuits, isolation switches, control wiring and safe, compliant connection to your switchboard.

ResidentialSplit System Air Conditioning

Split System Air Conditioning


Electrical installation and connection for split system air conditioners, including dedicated circuits, isolation switches, and safe integration with your home’s existing electrical setup.

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Ducted Air Conditioning


Complete electrical support for ducted air conditioning systems, including control wiring, load management, and safe connection to ensure consistent performance throughout the home.

ResidentialEvaporative Cooler Installed on Roof

Evaporative Cooling


Evaporative cooling electrical services for Perth homes – installation, connection, control wiring and fault-finding for ducted evaporative systems, carried out by licensed electricians.

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Hot Water Systems


Supply, installation, replacement and repair of hot water systems across Perth – gas, electric and heat pump. We diagnose faults, remove old units, and get your hot water working properly again.

ResidentialEV Charger Installation

EV Charger Installation


Professional home EV charger installation across Perth – including load assessment, dedicated circuits, switchboard upgrades where needed, and safe, compliant connection by licensed electricians.

ResidentialSolar and Battery Installation

Solar and Battery Installation


Solar panel and battery installation, upgrades, inverter repairs and maintenance for Perth homes – designed and installed by licensed Master Electricians to cut your power bills and improve energy independence.

ResidentialData and Network Points

Data and Network Points


Residential data point installation across Perth – hardwired Cat 6 network points, Wi-Fi access points and home network setups for fast, reliable internet in every room, neatly concealed and fully tested.

ResidentialTechnician installing a digital TV antenna on a metal roof in Gwelup

Expert TV Antenna Installation


TV antenna installation and tuning for Perth homes – new antennas, replacements, additional outlets and reception fault-finding by licensed technicians.

PERTH COMPLETE ELECTRICAL

Why Choose Perth Complete Electrical

Comprehensive Electrical Services

We handle all electrical work, including installations, maintenance, and repairs for Perth homes and businesses

Qualified and Experienced Team

With more than 20 years of electrical experience, our licensed electricians deliver dependable workmanship on every project.

Responsive Same-Day Service

Contact us before midday to arrange same-day electrical service whenever possible for urgent or routine jobs.

Lifetime Workmanship Warranty

Our lifetime guarantee ensures long-term confidence and reliability in every service we provide.

Master Electrician Member

As Master Electricians, we maintain strict compliance, safety, and quality standards.

Customer Satisfaction Focused

We value professionalism, clear communication, and prompt service, ensuring every Perth client receives outstanding results.

What Our Happy Clients Are Saying

 
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Excellent135 reviews
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Kim Ruiz
31 days ago
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We had a large job that required quite a bit of digging in our front yard and also under pavers. Dylan came out on time, did an excellent job and was absolutely lovely to speak to as well. Very professional service. Can recommend.
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Sally-ann Jackson
40 days ago
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I couldn't be happier with the service from Perth Complete Electrical. The whole team was professional, friendly and incredibly easy to deal with from start to finish. Their workmanship was outstanding, they turned up when they said they would and everything was completed to a very high standard. It's hard to find a company that genuinely cares about its customers, but the team at Perth Complete Electrical went above and beyond. Their communication was excellent, they left everything clean and tidy, and nothing was too much trouble. I highly recommend PCE to anyone looking for reliable, high-quality electrical work. I'll definitely be using PCE for all of my electrical work in the future. Thanks again to the entire team!
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Kevin Davies
42 days ago
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Great service and Dillon / Sam were great and helpful. Very professional guys .
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Petch F
49 days ago
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We had blake and the team help get a client internet line connected in a commercial property in the city. They did a great job and the client is super happy.
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Paul Claessen
51 days ago
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Kurt came out and gave our AirCon unit a service. Organised quickly, was on time, did a great job and cleaned up after himself. Perth Complete Electrical went over and above to do a great job!
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N Milo
60 days ago
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Fantastic service start to finish. Made it easy to get our new spit system AC. Installed the very next day. Good and clean work from Kurt.
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DS Bax
68 days ago
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Arrived on time. Both very polite and considerate. Good at asking questions to understand the future task for which I needed a quote, then clearly explained the complexities. Got after the job to be done that morning, persisting to make sure it was all working when they left. Very satisfied.
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David Bearsley
70 days ago
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Perth Complete Electrical is the Go To for all your electrical needs. On time and professional in all aspects of their service delivery. They go above and beyond in providing a great service. Happy to recommend to all my friends and family.
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CheragD
108 days ago
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We had Perth Complete Electrical out to fix a faulty air‑conditioning zone motor and to service the entire AC system. They were on time, professional, and incredibly thorough. The technician took the time to explain what was wrong, what needed to be done, and made sure everything was working perfectly before leaving. The attention to detail and quality of work were outstanding. Our AC is running better than it has in years. Highly recommend Perth Complete Electrical for anyone looking for reliable, honest, and skilled electrical and air‑conditioning service
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Marcel St Jack
109 days ago
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Contacted PCE to install RCDs and smoke alarms at a residential address. Communication was excellent and the job was completed professionally and in a timely manner. The service definitely exceeded expectations. The whole experience was very positive and based on this I would highly recommend PCE.
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Perth Complete Electrical

Areas We Service

We proudly provide residential electrical services throughout Greater Perth. Tap a region on the map to see where we work.

If your suburb isn’t listed, simply give us a call. We service a wide area across Greater Perth and are always happy to confirm whether we can assist.

Frequently Asked Questions

How is an instantaneous system different from a storage tank?

A storage system heats and stores a tank of water, reheating it around the clock. An instantaneous (continuous flow) system heats water only as you use it – so there is no tank to run cold and no standby energy loss.

What size continuous flow unit do I need?

Sizing is based on flow rate (litres per minute) rather than tank capacity. As a rough guide, a one-bathroom home suits a 16-20L/min unit, while larger homes with two or more bathrooms usually need 26-32L/min. We confirm the right size before quoting.

Can you replace my old storage system with an instantaneous unit?

Yes. Changeovers are one of our most common jobs. We remove and dispose of the old tank, adjust gas and water pipework, and install the new continuous flow unit – usually within a single day.

How long does installation take?

A like-for-like replacement is typically completed in two to four hours. A changeover from storage to continuous flow usually takes most of a day, depending on pipework and gas supply requirements.

My unit shows an error code - can it be repaired?

Often, yes. Many continuous flow faults – ignition issues, flow sensors, blocked filters – are repairable. We diagnose the fault first and give you an honest repair-or-replace recommendation based on the age and condition of the unit.

Do instantaneous systems work with tempering requirements?

Yes. Delivery temperatures are controlled to meet Australian requirements for sanitary fixtures, and optional controllers let you manage temperatures precisely in kitchens and bathrooms.