Granny Flat Plumbing in Brisbane & Gold Coast – Licensed, Affordable & Fully Compliant
Building or upgrading a granny flat? JR Gas & Water provides licensed granny flat plumbing services across Brisbane, Gold Coast, Logan, Ipswich, Redlands, and Moreton Bay. Whether it’s a self-contained unit, studio, or backyard dwelling, we’ll take care of all the plumbing, drainage, and gas requirements — start to finish.
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🔧 Fully Licensed Plumbers & Gasfitters – QBCC License #1297081
📍 Trusted across Southeast QLD by homeowners, builders, and developers
Why Choose JR Gas & Water for Granny Flat Plumbing?
Granny flats have unique plumbing needs — compact layouts, tight access, and often limited connections. We’ve completed hundreds of small home, studio, and dual-occupancy fit-outs and know how to make the most of your space without blowing the budget.
With us, you get:
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✅ Full water, drainage & gas plumbing installations
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✅ Advice on council compliance and service connections
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✅ Connection to existing house infrastructure or new mains
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✅ Compact system design for small space living
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✅ Friendly, clean, and experienced tradespeople
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✅ Fixed quotes and staged scheduling to suit your build
What’s Included in Our Granny Flat Plumbing Services?
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🚽 Bathroom plumbing: toilets, showers, vanities, drains
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🚿 Laundry plumbing: taps, troughs, washing machine points
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🍳 Kitchen plumbing: sinks, mixers, dishwashers, fridge water points
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🔥 Gas hot water systems or cooktop installations
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🪠 Sewer and stormwater connections
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💧 Water supply from mains or existing dwelling
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🏠 Compliance certification and pressure testing
Whether you're building a new granny flat or upgrading an old one, we handle the full plumbing package so you don’t have to juggle multiple trades.
How Much Does Granny Flat Plumbing Cost?
Pricing varies depending on location, scope, and whether you're connecting to an existing home or starting from scratch. As a guide:
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Full internal plumbing fitout: From $5,500–$9,500
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Add-on to existing property (shared connection): From $3,800
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New mains water, sewer, and stormwater connections: Custom quoted
We offer staged invoicing to suit your builder’s timeline and council requirements.
Can You Work with My Builder or Owner-Builder?
Yes – we regularly work with:
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Custom home builders
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Owner-builders
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Dual occupancy specialists
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Modular and relocatable home providers
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Project managers and developers
We’re flexible, communicative, and always aim to keep the project moving.
Areas We Service
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Brisbane – All metro and fringe suburbs
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Gold Coast – From Upper Coomera to Coolangatta
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Logan, Ipswich, Redlands, Moreton Bay
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Scenic Rim and regional properties by request
FAQs – Granny Flat Plumbing
Can I connect my granny flat to the main house’s plumbing?
Yes – we can connect to your existing services if the system has capacity. We’ll assess and advise the best option.
Do I need council approval for plumbing a granny flat?
Yes – most builds require Form 4 lodgement and plumbing approvals. We handle this as part of our service.
Do you install hot water systems?
Absolutely. We install electric, gas, and heat pump hot water systems — sized to suit small dwellings.
What if the granny flat is on a sloping block or acreage?
We provide custom drainage solutions, pump systems, and trenching for complex or rural setups.
Do you provide compliance certificates?
Yes – we issue all required Form 4 and QBCC plumbing certifications after final testing.
Book Expert Granny Flat Plumbing with JR Gas & Water
Need reliable, licensed plumbing for your granny flat? We’ll take care of everything — water, gas, drainage, and compliance — from start to finish.
