Transforming Sydney Bathrooms Into Luxury Sanctuaries.
Led personally by licensed builder Kurt with 20+ years of carpentry & renovation craftsmanship. From seamless waterproof wetrooms to bespoke ensuite retreats, delivered on-time, transparently priced, and backed by a 6-year warranty.
"I personally supervise every single wet area. Bathroom renovations require precision carpentry, flawless waterproofing, and trades you can trust inside your home."
Why Sydney Homeowners Choose Kurt For Their Bathrooms
A bathroom renovation is one of the highest value investments you can make in your home, but it is also the most technically demanding room in any property. Poor waterproofing or sub-par fall angles ruin homes.
AS 3740 Waterproofing
Double-membrane application with full cure and flood testing prior to tiling. Certified for council and strata compliance.
72-Hour Fixed Price Quotes
Personal on-site visit followed by an itemised scope within 72 hours. No hidden variations or surprise add-ons.
Precision Custom Joinery
Kurt's background in detailed carpentry allows for bespoke vanity joinery, recessed shaving cabinets, and hidden laundry nooks.
Direct Access to Kurt
No middlemen or commission-based sales reps. You speak directly with the licensed builder managing your project from day one.
Four Guarantees No Other Sydney Builder Puts in Writing
Kurt backs every bathroom renovation with four ironclad commitments, written into your contract, not just promised on a website. That's real risk reversal, not marketing.
On time, or Kurt pays you $500 cash for every week late
One of the only firms in Sydney to guarantee your project finishes on schedule. Miss the agreed deadline and Kurt pays you $500 cash for every week we run over, written into your contract.
Complete within budget, or KGB covers the difference
The price you agree to is the price you pay. If anything pushes the build outside the agreed fixed price, Kurt covers those costs out of his own pocket, never passed back to you.
6 years structural + 7 years plumbing, electrical & waterproofing
Every bathroom is backed by a 6-year warranty on structural defects and a full 7-year warranty covering plumbing, electrical and waterproofing, well beyond the NSW statutory minimum.
Free defect fixes for 6 months, no questions asked
After handover you're covered by an extended 6-month maintenance period. Spot any defect in that window and Kurt's team returns to fix it free of charge, no questions asked.
Every guarantee above is written into your building contract before any work begins.
Get Your Guarantees in WritingChoose Your Own Finishes, With Kurt's Builders' Discount, Zero Markup
The moment you sign your contract, the fun part begins. Kurt personally walks you through Sydney's best showrooms to pick the exact fittings and tiles you love, and passes our wholesale builders' price straight to you. No markup, no hidden commission. The trade discount is yours to keep.
Acqua Bathrooms
Builders' Trade DiscountThe moment you sign your contract, Kurt walks you through your fittings selections at Acqua Bathrooms. You choose the tapware, vanities, showers and baths you love, and pay only our builders' trade discount. KGB adds no markup, so the full wholesale saving stays in your pocket.
- Hand-picked premium fittings & tapware ranges
- You receive our wholesale builders' trade price
- Zero markup, you keep the entire discount
Lexatonia Tiles
Builders' Trade DiscountFor every tile, slab and mosaic, Kurt sends you to Lexatonia Tiles to browse the full range in person. Select exactly what suits your design and again pay only our builders' trade discount, with no markup added on top. Transparent, pass-through pricing end to end.
- Full porcelain, natural stone & mosaic ranges
- Designer tiles at wholesale trade pricing
- No markup, the discount is yours to keep
Kurt's 4-Step Renovation Process
Transparent, organised, and zero drama from initial site check to final inspection.
Free On-Site Consultation
Kurt visits your home, examines existing plumbing, ventilation, and walls, discusses design layouts and finishes.
72-Hour Itemised Quote
You receive a fixed-price, detailed quote within 72 hours outlining trades, fixtures, waterproofing, and a clear project timeline.
Expert Craftsmanship
Demolition, master carpentry, plumbing, electrical, and certified waterproofing tested before first tile is laid.
Handover & 6-Yr Warranty
Joint thorough inspection, professional silicone seal check, deep clean, and issuance of your 6-year warranty certificates.
Recent Bathroom Transformations
Every project managed and completed by Kurt and the KGB team.
Coastal Luxury Ensuite, Maroubra
Modern Minimalist Main Bath, Castle Hill
Heritage Character Bathroom, Glebe
Bespoke Master Retreat, Russell Lea
Executive Penthouse Bathroom, Sydney
Bring Your Architectural Drawings or Pinterest Boards to Kurt
Have plans or inspiration? We custom-build vanities, shower recesses, niches, and plumbing layouts to suit your exact vision.
No idea where to start? KGB Constructions can both design and build the entire space for you , from concept 3D planning and council/strata sign-off to full turnkey handover.
Real Sydney Bathroom Transformations
Drag the interactive slider to inspect the exact quality of Kurt's structural overhauls, waterproofing, and high-end finishes.
Ensuite Spa Transformation, Sydney Eastern Suburbs
• Built in 2.5 Weeks
Before: Dated 90s beige travertine with bulky elevated step-in spa, obsolete access vents, tired brass fixtures, and boxed-in layout.
KGB Delivery: Stripped to framework. Replaced with seamless walk-in rain shower, fluted glass screen, vertical porcelain textured tiles, floating oak vanity, backlit curved LED mirror, and concealed in-wall cistern.
Calculate Your Bathroom Renovation Cost
Select your bathroom type and preferences to see realistic Sydney market pricing.
Instant Sydney Bathroom Cost Estimator
Get an instant ballpark estimate tailored to your space before booking Kurt's free on-site check.
Includes full strip out, structural check, certified waterproofing to AS 3740, licensed plumbing & electrical, tiling, and Kurt's 6-year warranty.
100% Free • No Obligation • Transparent 72-Hour Itemised Quote
What Sydney Clients Say About Kurt
Honest feedback from actual bathroom and full-home clients across Sydney.
"Just completed our bathroom renovation with Kurt and the KGB team, and we couldn't be happier! The layout maximizes space, the bespoke floating timber vanity is breathtaking, and the microcement finish is flawless. Kurt was on-site every day ensuring the waterproofing and finishes met his impeccable standards."
"We wanted to create a spa-like haven for our family. Every inch of the room was designed with so much intent, and created with true craftsmanship. Kurt made our vision come to life and added smart lighting and custom niche storage that took it to the next level."
"Kurt was always available when needed, providing clear guidance, daily progress updates, and transparent pricing. He finished on schedule in under 3 weeks with zero hidden costs. The 6-year structural guarantee gave us complete peace of mind."
Book Kurt for a Free Bathroom Consultation
Tell Kurt about your bathroom and he'll personally inspect your space and deliver an itemised fixed-price quote within 72 hours.
Frequently Asked Questions
How long does an average Sydney bathroom renovation take?
Most bathroom renovations take between 2 to 3.5 weeks from demolition to final handover. Kurt provides a concrete, day-by-day project schedule before any tools touch your home, ensuring minimal disruption.
Do you supply the tiles, vanities, and fixtures or can I choose my own?
Both, and you keep the savings. Once you enter into a contract, Kurt walks you through your fittings selections at Acqua Bathrooms and your tile selections at Lexatonia Tiles. You choose the exact products you love and pay only our builders' trade discount, KGB adds no markup, so the full discount comes straight to you.
Are you licensed and insured in NSW?
Yes, 100%. Kurt from KGB Constructions is fully licensed in NSW (Contractor License), fully insured with Public Liability, and provides Home Building Compensation Fund (HBCF/iCare) insurance for all eligible works.
What guarantee do you provide on waterproofing and workmanship?
Every bathroom is backed by a 6-year warranty on structural defects and 7 years on plumbing, electrical and waterproofing, all to AS 3740-2021, flood-tested before any tile is laid. KGB is also one of the only Sydney firms to put a Timeline Guarantee in writing ($500 cash for every week we're late) and a Fixed Budget Guarantee (we cover any cost overrun beyond the agreed price), plus an extended 6-month maintenance period where any defect is fixed free of charge.
How much does a bathroom renovation cost with Kurt?
Standard modern upgrades typically range from $18,000 to $28,000, while bespoke luxury architectural renovations range from $30,000 to $48,000+. We provide a 100% free, fixed-price itemised quote within 72 hours of our site inspection so there are zero surprises.