JSJ Roofing - Alexandria
Trading name of JSJ Roofing (registered business name of SBMN Operating Pty Ltd) · Sydney, NSW
AustralianRoofers Trust Score New
How it's calculated: a transparent, evidence-weighted score — identity & longevity from the public ABN register, reputation from verified Google reviews, and consistency from cross-checking independent platforms. Grades are proportional to the evidence. Where we search the register and can't confirm a business, the identity check scores zero rather than being quietly left out — so a firm we couldn't verify never outranks one we could. Longevity stays unscored in that case, because without a registration date there's nothing to measure.
Our honest take
JSJ's Google record genuinely impressed us: 5.0 stars across 174 reviews, with 173 of those five-star and only a single one-star. That kind of volume and consistency is hard to fake, and the reviews themselves are specific — they name the tradesmen, describe the exact leak or panel or skylight that was fixed, and repeatedly mention before-and-after photos in the quote and after completion. To us, that's the signature of a documented, process-driven firm, not a one-truck operator getting by on charm.
The firm's own site leans heavily on strata credentials — it publishes testimonials from strata managers at Premier Strata, Westside, Norwest and others, several of whom say they've used JSJ for four to eight years and default to them when comparing quotes. The pitch is comprehensive, photo-documented quotes and reports, which is exactly what a body-corporate manager needs to justify a spend. So from what we found, this is a firm equally at home on a single-house leak call and on multi-owner strata coordination — one recent review describes them liaising with a strata manager and neighbours just to arrange access.
Now the honest counterweights. They charge for quoting — a genuine reviewer's only complaint, and the firm confirms it's a call-out fee covering two licensed tradesmen — so this isn't the one to ring for a free second opinion. The independent ProductReview score (3.8 from 5) sits well below the Google number, though on a tiny sample. And the registered entity is only about three years old, with a visible brand history as 'Cross City Roofing'. None of that would stop us recommending them — but you should know all of it before you pick up the phone.
Reputation across the web New
The same firm, checked across platforms
⚑ This firm also trades (or recently traded) as 'Cross City Roofing'
Several of the Google reviews on this listing — and the business's own replies to them — refer to 'Cross City Roofing' rather than JSJ Roofing (for example, reviewers thanking 'Aziz and his team at Cross City Roofing', and an owner reply signed off 'thank you for trusting Cross City Roofing'). The same staff names (Aziz, Daniel, Kade) recur under both banners, and the owner responds to all of them, so this is one business under two brand names — most likely a rebrand to JSJ Roofing — not a mis-attributed review from an unrelated company. We flag it only so you're not surprised if paperwork, invoices or older references arrive under the Cross City name.
Verified business details New
Checked against the public ABN register
Source: verified against the official Australian Business Register via ABN Lookup (abr.business.gov.au), including GST registration.
What they're actually known for New
Ranked by what customers mention — not a self-declared list
Who you'll actually deal with
A team operation, led on-site by named crews
This is a team-based firm rather than a visible single owner-operator, and it's honest to say the public-facing principal isn't clearly identified on the website (the 'about' and 'team' pages both currently 404). What the reviews make unmistakable is that the same small roster of tradesmen turns up again and again: Adam is the most-named (five reviews), followed closely by Daniel and Liam, with Kade, Aziz, James, Jayden and Billy recurring across jobs. A homeowner is dealing with a settled crew, not a rotating cast of subcontractors.
A couple of names look like they sit above the tools: one reviewer singles out 'Justin' as easy to deal with on a high-end home, and another describes 'Aziz and his team,' suggesting a lead/foreman role. We're inferring those roles from review context rather than any stated title, so treat them as indicative. The firm's owner replies to reviews personally and warmly, and the strata testimonials on their own site praise the office admin as much as the on-site work — so the back-office coordination appears to be a real strength, not just the trades.
What clients say
In their own words
Daniel and Kade just attended my property. Super polite, super friendly and respectful (took shoes off before coming in). Fixed my leaking roof, talked me through the issue and the fix. Prompt, easy, absolutely would use again, highly recommended
Adam and James were amazing. Punctual, polite, completed the job to a very high standard and great to work with. I’ve used them twice and both times I’ve been so impressed. Highly recommend this team.
Liam and Brad (I think?) just yet. Really nice guys, fast but quality work and very professional interactions. They even went above-and-beyond and cleaned some mess that a totally different team of tradies left from the week prior - great service!
Recurring themes: accurate leak diagnosis explained with photos, punctual and respectful crews (shoes-off is mentioned repeatedly), and clean, above-and-beyond finishes that earn repeat business.
Best for
- Leak detection and repair, skylight fixes, and general roof maintenance where you want the problem diagnosed and documented with photos, not just patched
- Strata and body-corporate work needing itemised, photo-backed quotes and reports, and coordination with managers and neighbours for access
- Homeowners who value tidy, respectful crews and clear communication over the lowest possible price
Less suited for
- Anyone wanting a free quote or a no-cost second opinion — the firm charges a call-out/quoting fee, and confirms it covers two licensed tradesmen assessing the roof
- Large-scale new-build or full re-roofing projects — the evidence points to a repair-and-maintenance specialist, so get scope confirmed for a big replacement
- Weekend or after-hours needs — listed hours are weekdays 7:30am–4:00pm, with emergency work bookable but not the default
Before you commit
Five questions worth asking
- What is your quoting/call-out fee, and is it credited toward the job if I proceed?
- Will I receive before-and-after photos and an itemised scope of works, as your strata clients describe?
- Are you now operating solely as JSJ Roofing, or should I expect any paperwork or invoicing under 'Cross City Roofing'?
- What workmanship warranty applies to this repair — one recent review mentions a 2-year warranty, so can you confirm the terms in writing?
- For my job, who is the lead tradesman, are they fully licensed, and is my property within your free/standard service radius from Alexandria?
Bottom line
We'd be comfortable calling JSJ for a leak, a skylight or strata work — a well-documented, strata-experienced repair roofer with a standout Google record and refreshingly specific reviews. Just go in expecting a quoting fee, get the warranty terms in writing, and don't be thrown if 'Cross City Roofing' appears on older paperwork.
Assessed by the editorial team at AustralianRoofers.com from public Google Business Profile data, ProductReview.com.au, the firm's own website, and the ABN register. Not a paid placement.
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