Moved Into a New Build? Here's Why the Mould Is Already Back.
Anti-Mould Paint · Bathroom & Kitchen Protection · New Build Specialist
Most new-build bathrooms and kitchens are painted with standard contractor emulsion — not mould-resistant. Legacy Trade-Strength Anti-Mould Paint fixes what the builder's paint couldn't.
No more mould, or your money back. That's how confident we are in Legacy Anti-Mould Paint.
Your Builder Didn't Skimp on the Kitchen — They Skimped on the Paint
Standard trade/contractor emulsion is bulk-bought for cost, not moisture resistance. It's fine for a hallway. It fails fast in a bathroom or kitchen running high humidity from day one.
Builder-grade, not bathroom-grade
Contractor emulsion is specified for cost per litre across the whole house — not formulated to resist steam or condensation.
Mould returns within 6–24 months
Without a mildewcide in the paint film, spotting typically reappears well within the first two years of moving in.
Your warranty likely won't cover it
Snagging and new-build warranties routinely classify cosmetic mould as "condensation," not a build defect.
Legacy vs. Standard Contractor Paint
Legacy Trade-Strength
- ✓Mildewcide built into the paint film, not just the surface
- ✓Engineered specifically for bathroom & kitchen humidity
- ✓Wipe-clean, steam-resistant finish
- ✓Applies straight over existing builder paint
- ✓5 Year Guarantee against regrowth
Standard Contractor Emulsion
- ✗Bulk-specified for cost per litre, not performance
- ✗Little to no anti-mould additive
- ✗Breaks down fast under repeated steam
- ✗The exact paint most new-build bathrooms ship with
- ✗No protection guarantee
Check Before You Order
| Situation | Result | Notes |
|---|---|---|
| New-build bathroom, first signs of spotting | ✓ | Most common use case — apply as soon as spotting appears. |
| New-build kitchen (behind hob, kettle, extractor) | ✓ | Same builder-grade paint issue applies to kitchens as bathrooms. |
| Existing black mould already established | ⚠ | Clean with a fungicidal wash first, then apply. |
| Underlying leak or persistent condensation | ⚠ | Address ventilation or the leak first — paint is a barrier, not a fix for the source. |
| Exterior masonry | ✗ | Interior formula only. |
Don't Just Paint Over It
Eradicate
Clean the area with a fungicidal wash to kill deep-seated spores before painting.
Fix the Source
Address leaks or improve ventilation. Paint prevents regrowth — it doesn't replace airflow.
Protect
Apply 2 coats of Legacy Anti-Mould Paint directly over the existing contractor paint.
The Complete Guide to Understanding, Preventing & Treating Household Mould
A free, in-depth PDF guide from the people who manufacture Legacy™ Anti-Mould Paint — covering everything on this page in more detail, plus the science behind why it works.
- What mould is, how it forms, and where it typically appears
- The full 5-step treatment protocol, explained in depth
- Prevention habits that stop it coming back
- The binder & pigment technology behind Legacy™ Anti-Mould Paint
Get the Free Guide
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What You're Getting
Made in Glasgow ● Water-Based Acrylic ✓ Batch Tested
New Homeowners, Real Results
"Moved in 8 months before the mould started around the shower seal. Painted directly over the builder's finish — hasn't come back since."
"Kitchen wall behind the kettle went black within a year of moving in. This has held up brilliantly and still wipes clean."
"Assumed a brand-new house wouldn't have this problem. Builder called it 'condensation.' Two coats and it's stayed completely clean."
