Enjoy instant hot water, lower energy bills, and reliable service—fast.
Tired of running out of hot water or dealing with an outdated, energy-wasting system? Many Sydney homeowners and businesses face high utility bills and frustrating wait times because of old water heaters. At In House Plumbing, we provide expert tankless water heater installation and repair services that deliver instant hot water, reduce energy use, and save space. Backed by over 20 years of hands-on experience and hundreds of 5-star reviews, we make upgrading your water system fast, clean, and completely stress-free.
In House Plumbing is proud to serve homes and businesses throughout Sydney—including Castle Hill, Blacktown, Hornsby, and beyond. We’ve built our reputation on dependable service, expert workmanship, and a true commitment to customer care. With over two decades in the industry, our licensed team handles everything from hot water upgrades to full plumbing renovations. Clients trust us because we’re transparent with our pricing, show up on time, and leave every workspace spotless. If you’re looking for a local plumber you can rely on, we’re ready to help.
Our tankless water heater installation and repair services are designed to make your switch to modern, efficient hot water as simple as possible. We’ll help you choose the right system—whether electric or gas—for your needs and property size. Then, our licensed technicians will handle everything from delivery to full installation, including any adjustments needed for continuous flow systems. Already have a unit? We offer reliable repairs and ongoing maintenance to ensure you’re never left without hot water. From start to finish, we prioritize clear communication, timely service, and no hidden fees.
Tankless water heaters provide hot water only when you need it—unlike traditional tanks that store and reheat constantly. If you’re curious about the technology behind this, check out our guide on how continuous flow hot water systems work.
This not only reduces energy costs, but also saves valuable space in your home or commercial property. Sydney families and business owners love these systems for their efficiency and low-maintenance performance. You’ll enjoy consistent hot water, lower utility bills, and fewer breakdowns over time.
At In House Plumbing, we take pride in our 5-star reputation across Google and local directories. Customers trust us because we’re professional, respectful, and committed to doing the job right the first time. Our team is fully licensed and insured, and we always provide honest, upfront pricing. We also clean up after every job—so the only thing you’ll notice is the improvement to your water system. If you’ve been burned by messy trades or unclear quotes in the past, you’ll find our approach refreshingly simple.
We’ve helped families in Kellyville, Baulkham Hills, Quakers Hill, and surrounding suburbs get fast access to better hot water. Thanks to our deep knowledge of Sydney’s plumbing infrastructure and property types, we offer faster installs and better recommendations. Whether it’s an emergency repair or a planned upgrade, we show up on time, work efficiently, and treat your property with respect. With In House Plumbing, you’re not just hiring a plumber—you’re partnering with a neighbour who knows the local landscape and delivers top-tier results.
Don’t wait for your old water heater to fail. Contact In House Plumbing today to get a free quote online for your tankless water heater installation and repair. We’re here to help with friendly service, clear communication, and expert results—every time. Let us show you why so many Sydney locals trust us to keep their water running hot and their homes running smoothly.
Emergency Service
No hidden charges
Workmanship
after ourselves
With over 20 years of expertise, In House Plumbing proudly serves homes and businesses across Sydney and greater NSW. From urgent repairs to full-scale renovations, our reliable service and 5-star reputation mean you get high-quality plumbing solutions—delivered with care, precision, and professionalism.
Join homeowners, property managers, and businesses who trust IHP for expert plumbing, gas fitting, and renovation services.
From Blacktown to Castle Hill, our experienced team is ready to deliver seamless plumbing services right in your neighborhood.
Your confidence is our commitment—trusted by thousands for quality, reliability, and excellence!
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