Waterproofing & Leak Rectification
Wet-area waterproofing repairs and leak rectification for bathrooms, showers and balconies.
Details on waterproofing & leak rectificationLicensed bathroom and waterproofing specialists for Sydney strata buildings
We repair and rebuild wet areas for owners corporations and homeowners across southern Sydney — waterproofing, tiling, plastering, painting and carpentry, all from one licensed trade.
Contractor Licence 501504C. No disciplinary actions, claims or penalties on file. GST registered since 2021.
501504C
Contractor licence number
6
Licensed trade classes
Zero
Disciplinary actions on file
2021
GST registered since
What we do
Six licensed trades, one point of contact — every service below sits under our current contractor licence.
Kitchen, Bathroom & Laundry Renovation
Full wet-area renovations — kitchens, bathrooms and laundries — from strip-out to finish.
Details on kitchen, bathroom & laundry renovationDry Plastering
Wall and ceiling plastering and patch repair, for renovations and defect rectification.
Details on dry plasteringPainting
Interior and wet-area painting, finished to trade standard.
Details on paintingCarpentry
Framing, fit-outs and finishing carpentry for renovation projects.
Details on carpentryDecorating
The finishing details that complete a renovation.
Details on decoratingMore than half of NSW strata buildings have a defect problem
A 2023 survey by the Strata Community Association NSW and the NSW Building Commission found that 53% of buildings surveyed had serious defects — waterproofing was the single most common category, at 42%. That's exactly our specialty, with owners corporation / owner cost-split invoicing built into how we quote.
See our Strata & Commercial serviceSource: SCA NSW / NSW Building Commission, 2023 Strata Defects Survey
Before & after
Real project photos are added as jobs are completed — nothing here is stock imagery.
Licensed, compliant, and built for strata
- Contractor Licence 501504C, current and in good standing
- No disciplinary actions, claims or penalties on file
- GST registered since 2021
- Experienced with owners corporation / owner cost-split invoicing
501504C
Active 7 Sept 2026 – 6 Sept 2027
Kitchen Bathroom Laundry Renovator, Waterproofing Technician, Dry Plasterer, Painter, Carpenter, Decorator
What clients say
Testimonial pending — added as reviews come in.
Testimonial pending — added as reviews come in.
Frequently asked questions
Is JY Interior a licensed contractor?
Yes. Contractor Licence 501504C covers Kitchen Bathroom Laundry Renovator, Waterproofing Technician, Dry Plasterer, Painter, Carpenter and Decorator, active through 6 September 2027, with no disciplinary actions, claims or penalties on file.
Do you work with owners corporations and strata buildings?
Yes — this is most of our current work. We handle strata and owners corporation wet-area defect repair, including bathroom waterproofing rectification, with owners corporation / owner cost-split invoicing built into how we quote.
What services does JY Interior provide?
Waterproofing and leak rectification, kitchen/bathroom/laundry renovation, dry plastering, painting, carpentry and decorating — all under one contractor licence.
Where is JY Interior based?
Penshurst, NSW, servicing southern Sydney.
How do I get a quote?
Use the quote request form with your suburb, the service you need and a description of the job, or call 0456 448 889 directly.