Mashman Group
What that means practically: you can't verify working style, pricing fairness, punctuality, or quality of finish from the review record alone. For a waterproofing job in Darwin, where a failed membrane can cause serious structural damage season after season, it's worth asking for photos of comparable completed work and references from recent clients before committing.
What they help with
Based on what their customers hired them for
How they stack up
Context from 247 waterproofings in Darwin
Credentials & background
Sourced from 3 public records so you don't have to look them up yourself
About Mashman Group
Mashman Group operates as a general contracting outfit with a waterproofing focus out of Winnellie, servicing the Darwin area — a market where the tropical wet season makes moisture intrusion a persistent and costly problem for both residential and commercial properties. With roughly a year of active trading, this is a young business, which in Darwin's tight trades market can mean more flexibility and responsiveness than longer-established firms who are booked out weeks in advance. The Winnellie base puts them centrally placed for both the industrial precincts nearby and the suburban residential areas spreading south toward Palmerston. Waterproofing in the NT context typically spans wet area membranes in bathrooms and laundries, balcony and roof deck sealing, and sub-floor or retaining wall treatments — all of which become urgent once the build-up season arrives. Because the two Google reviews left contain no written text, there's genuinely nothing to report about their working style, specific team members, or which jobs they've handled best — prospective customers should ask directly about relevant project types before booking. As a newer operation, they may be well suited to homeowners who want a smaller, attentive contractor rather than a large firm where their job might sit low in the queue.
Best for: Darwin homeowners needing a locally based waterproofing contractor, jobs where a smaller and more available operator is preferred over a large firm, and pre-wet-season moisture protection work.
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Claim This Profile — Free →Common questions about Mashman Group
What areas does Mashman Group service?+
Mashman Group is based in Winnellie, which sits centrally within the Darwin metro area and provides convenient access to the CBD, inner suburbs, and the Palmerston corridor. Their service radius hasn't been documented in customer reviews, so it's worth confirming directly whether they cover your specific suburb or any regional locations outside greater Darwin. Being a smaller, newer operation, they may be willing to travel further than a larger firm with a full schedule.
Does Mashman Group handle both residential and commercial waterproofing jobs?+
Their Google business classification includes 'general contractor', which suggests they work across both residential and commercial project types — not exclusively one or the other. However, customer reviews don't contain written detail about the kinds of jobs they've completed, so you can't draw firm conclusions from that source. Ask them directly about their experience with your specific project type, whether that's a bathroom renovation, a commercial roof deck, or a new build wet area.
How long has Mashman Group been operating?+
Mashman Group has been active for approximately one year, making them a relatively new entrant to Darwin's waterproofing market. For homeowners, that means less of a track record to evaluate compared to longer-established firms — but it can also mean more availability and personal attention on your job. Requesting references or examples of recent completed work is particularly important when engaging a newer business.
What do customer reviews say about Mashman Group's work quality?+
Mashman Group has received two 5-star ratings on Google, but neither review includes any written commentary, so there's no customer-sourced detail about their work quality, communication, pricing, or reliability. This makes it difficult to assess the business from reviews alone. Before booking, it would be reasonable to ask for photos of recent waterproofing jobs and contact details for a past client who can speak to the outcome firsthand.
Is waterproofing particularly important for Darwin homes?+
Darwin's wet season brings intense, sustained rainfall that makes waterproofing a critical concern for local homeowners — far more so than in drier southern climates. Failed membranes in wet areas, balconies, or sub-floors can allow moisture to penetrate quickly, leading to mould, structural damage, and costly remediation. Engaging a waterproofing specialist before the wet season arrives, rather than during or after water ingress occurs, is generally the more cost-effective approach for NT properties.