About Flash Hot Water Systems
Flash Hot Water Systems is a local, owner-led team that repairs, replaces and installs hot water systems across Sydney.
Thursday Hot Water Deal
Call Now & Get $65 Off Your First Service
We work out why the hot water has stopped before we quote, and we tell you exactly what's wrong and the best way to fix it.
-
Honest Diagnosis
-
$0 Call-Out Fee
-
Same Day Service
-
Lifetime Labour Warranty
Who We Are
We're a small, closely knit team, born and raised in the area, with 15+ years' experience. The director still works on the tools, so you deal with the business itself, never a call centre. The business is fully licensed and insured.
Our work covers hot water repairs, hot water replacement and heat pump hot water for Sydney homes, strata schemes and businesses, across gas, electric, solar and continuous flow systems.
Our Process
-
The call
A real person answers the phone 24 hours a day and books Same Day Service. -
Find the fault
We check the system and find out why it has stopped heating. -
The written quote
You get the price in writing before any work starts, on every job. -
Repair or replace
We fix the fault or fit the replacement system you choose. -
The warranty
Our labour carries the Lifetime Labour Warranty.
Why Choose Flash Hot Water Systems
Four promises stand behind every hot water job we take on.
-
Honest Diagnosis
We'll tell you exactly what's wrong and the best way to fix it, including whether a repair or a replacement makes more sense.
-
$0 Call-Out Fee, Upfront Pricing
The call-out fee is $0, and the pricing is fair and upfront, with no surprises. Best Price Guaranteed applies on a written quote, and new customers get $65 off their first service.
-
Lifetime Labour Warranty
Every job carries the Lifetime Labour Warranty, and Quality Workmanship Guaranteed backs the work.
-
NSW Contractor Licence
We work under contractor licence 498750C, issued by NSW Fair Trading for plumbing, draining and gasfitting work.
Opening Hours
We're open 24 hours for same-day emergency service. A real person answers the phone at any hour, day or night.
Reviews From Sydney Customers
Customers have left 300+ five-star reviews. Each card below is a real review, summarised in a line.
-
From the first visit through to a replacement hot water system, professional the whole way.
-
Turned up to the minute, worked without fuss, friendly from arrival to handshake.
-
An emergency call answered immediately, then careful, exacting work from a tradesman who clearly cares.
-
Punctual from the first knock, walked us through the problem in plain terms and finished to a standard you could inspect. Pricing felt fair, and not a scrap of mess was left behind.
-
Kept us informed the whole way through, and the finished job matched the chat.
-
Easy to deal with, and the job was wrapped up faster than expected.
-
The claims on the door turned out to be the truth in person. Couldn't fault the team.
-
Did what they promised. We'd book them again without thinking twice.
-
A genuinely good crew. Service you'd happily call back.
-
Straight shooters who do solid work.
-
No drama, no delays. They just got on with it.
-
The tradesman who came out couldn't have been more courteous.
Recent Hot Water Jobs Across Sydney
Photos from real jobs our team has completed.
Plumber installing a continuous flow hot water unit on a renovation wall 
Old electric hot water unit beside a brick wall before its replacement 
Valves and fittings laid on top of a new hot water unit before connection 
Old hot water unit beside the boxed replacement unit 
Rust-stained leak running down a hot water unit in a cupboard 
Rust stains across the top of an old hot water tank
Areas We Service
We fix hot water systems right across Sydney, including the Northern Beaches, North Shore, Inner West, Eastern Suburbs, Hills District, Western Sydney, South West Sydney, Sutherland Shire and St George.
Book a Hot Water Plumber in Sydney
Call (02) 9073 7890 to book Same Day Service with a $0 call-out fee. A real person answers 24 hours a day, and new customers get $65 off their first service.