This deal has a redemption window, however the original amount you paid is protected for up to 3 years from your purchase date — either as GrabOne account credit or redeemable with the GrabOne partner. See How it works
Manta Wash are a locally owned, full-time exterior cleaning crew based in Wellington & Nelson.
We're softwash specialists, not generalist cleaners. We don't water-blast paint, we don't use harsh corrosive chemistry, we don't subcontract out. Our gear is professional-grade (commercial rigs) and we maintain it like ops.
Fully insured (public liability + property damage), Site Safe trained, NZQA-aligned working-at-heights certified. We arrive on time, leave the place tidy, and walk you through what we've done.
Most of our work comes through repeat customers and word of mouth.
Conditions
Valid from Jun 18, 2026
Expires Sep 30, 2026
Limit: 3 per user and 2 as gift for others
Bookings essential. Subject to availability. To book visit: https://mantawash.co.nz/fast-quote/ and fill in the request form. Please enter your GrabOne voucher code/s in the "Coupon" field. Manta Wash will schedule your job at the earliest date, and send you a booking confirmation email. Valid for option stipulated on coupon only. House Sizes: Small: ≤120m², Medium: ≤180m², Large: ≤230m². Must be used in one visit on one property only. Coupons can be combined. Manta Wash is a mobile service. Valid service area: Nelson, Richmond and Stoke as well as the surrounding area. They will arrive at your property and review the service in preparation for washing. Once cleaning is completed they will survey the property and confirm the job is complete. One voucher per property unless otherwise agreed. House size confirmed at booking. If property exceeds the voucher band (e.g. Medium voucher used on a Large home), an upgrade fee applies, paid direct to Manta Wash. Multi-level tier is required for any 2+ story home. This is honored on a no-questions basis at booking - please pick the right tier when you buy. 24-hour cancellation or coupon is void. Not valid on public holidays. While stocks last. No refunds unless required by law. No cashback. Not to be used with any other offer. See the rules that apply to all deals.