Renovating a bathroom is one of the most rewarding home upgrades, but understanding the process helps ensure it runs smoothly from start to finish.
At Double Diamond Construction, we don’t just focus on the final result. We guide Sydney homeowners through every stage (initial ideas, council approvals, and final handover) with clear communication, qualified trades and workmanship.
Here’s exactly what to expect when you renovate your bathroom with our team.
Stage 1: Initial Consultation & Free Quote
All successful bathroom renovations begin with a conversation. We start by understanding your goals and vision, budget range, the size and layout of your current bathroom, and whether this is a cosmetic refresh or a full structural upgrade.
During your free consultation, we assess the existing space and discuss:
- Layout improvements
- Storage solutions
- Fixtures and fittings
- Tile selections
- Waterproofing requirements
- Timeline expectations
Stage 2: Design & Planning
Achieving a dream bathroom requires a fair share of creative thinking, and our team works with you to:
- Refine the layout
- Select finishes (tiles, tapware, vanities, shower screens, etc.)
- Confirm plumbing and electrical positioning
- Finalise scope and materials
We ensure everything aligns with what you are hoping for, your property requirements and NSW building regulations. If council approvals or strata approvals are required, we assist in navigating that process.
Stage 3: Detailed Quote & Scheduling
Once the design and scope are finalised, clients can expect clear pricing, no hidden surprises, and realistic timelines for the build.
We schedule your renovation and coordinate all required trades (plumbers, electricians, tilers, waterproofers and carpenters) for a streamlined workflow.
How much should you spend on a renovation? A common rule of thumb is to allocate around 5–10% of your property’s current value to home additions and renovations. However, this benchmark is only a general guide.
For owner-occupiers planning to stay long term, renovation budgets are usually shaped by lifestyle goals and quality expectations.
With communication at every corner, you’ll know when trades are arriving and what to expect throughout the build. There is no need to stress!
Stage 4: Demolition & Site Preparation
With planning complete, the bathroom renovation process begins.
- Safe removal of old fixtures, tiles and fittings
- Disposal of materials
- Preparing walls and flooring for new installations
- Inspecting plumbing and structural elements
If any underlying issues are identified (such as water damage), we address them before moving forward. We don’t cut corners or compromise on quality.
Stage 5: Plumbing & Electrical



Before new finishes go in, the essential infrastructure is installed:
- Relocating plumbing lines (if required)
- Installing new pipework
- Electrical wiring and lighting placement
- Exhaust fan installation
Everything is completed to Australian standards by fully qualified trades. Learn more by reading one of our articles: How to Prepare Your Home (and Yourself) for a Major Renovation
Stage 6: Waterproofing
Waterproofing is one of the most critical stages in the bathroom renovation process. Our team ensures:
- Proper membrane application
- Compliance with industry guidelines
- Adequate curing time before tiling begins
This stage protects your home long term; high-quality waterproofing is non-negotiable.
Stage 7: Tiling & Surface Installation
Once waterproofing is certified, the transformation becomes visible. This stage includes:
- Floor and wall tiling
- Feature tiles (if selected)
- Grouting and sealing
- Ensuring precise alignment and finish
Learn more about us at Double Diamond and why you should choose our dynamic professionals.
Stage 8: Fixture & Fitting Installation
Now your new bathroom starts coming together. We install:
- Vanity units
- Toilets
- Shower screens
- Tapware
- Basins
- Mirrors
- Bath (if included)
Stage 9: Final Inspection & Handover



Before completion, we conduct a detailed quality check to ensure:
- All finishes meet our standards
- Fixtures operate correctly
- Waterproofing integrity is maintained
- The space is thoroughly cleaned
We walk you through the finished bathroom and make sure you’re completely happy with it. Our goal is simple: deliver a bathroom that exceeds expectations, on time and within budget.
What Makes Double Diamond Construction Different?
- Clear communication
- Responsive service
- Reliable timelines
- Fair pricing
- High-quality workmanship
Our projects speak for themselves!
Need North Shore, Parramatta, or across Western Sydney? We’ve delivered stunning bathroom renovations across metropolitan and regional NSW.
How Long Does the Bathroom Renovation Process Take?
While timelines vary depending on scope, most standard bathroom renovations take approximately 2–4 weeks from demolition to completion. What may influence timing?
- Structural changes
- Custom materials
- Strata or council approvals
- Complexity of plumbing relocation
We provide realistic scheduling from the outset so you can make plans around the reno process.
Start Your Bathroom Reno
Double Diamond Construction has over 15 years of experience as fully insured, licenced builders in Sydney turning houses into true homes. From Council Approvals to finding materials and managing the construction phase,
Call 1300 659 393 or our mobile 0414 144 935. You are also free to email us at info@doublediamondconstruction.com.au.
Book your free consultation and quote today. We’ll always go the extra mile.

