Start your project

We're based in Bexley and cover all of Greater Sydney. Our primary focus is Mosman, Double Bay, Potts Point and the Eastern Suburbs — but we regularly work across the Inner West, St George, Sutherland Shire, Bayside and Sydney's North Shore. Not sure? Call us on 0432 826 086 and we'll tell you straight away.

Yes — always. We come to your site, assess the job in person and provide a clear, itemised written quote with no hidden costs and no obligation to proceed. We don't pressure you and we don't charge for our time.

Yes. BuiltByAJ holds a valid NSW builder's licence and full public liability insurance. Every job is completed to the NSW Building Code of Australia standards. Our credentials are available on request. ABN: 58 303 616 851.

It depends on the scope. A door installation typically takes half a day to a full day. A custom deck runs 2–5 days. A partial renovation can take 2–6 weeks. We give you a firm, realistic timeframe at the quote stage — and we stick to it.

The full range — from small carpentry repairs and door replacements through to full home renovations and custom builds. Common jobs: decks and pergolas, door installation, wall framing, custom fit-outs, sauna installation, steel awnings and cabinetry.

Yes — we are Sydney's authorised installation partner for NordicWellness Australia. We handle everything from delivery through to final fit-out. Indoor, outdoor and pod saunas available. Visit our sauna installation page or request a quote above.

Deck costs vary by size, materials and site access. A small timber deck can start from around $8,000–$12,000, while larger composite or hardwood decks can run $20,000–$50,000+. We provide detailed, itemised written quotes at no charge.

It depends on the size and height. Many decks and pergolas fall under Complying Development in NSW, meaning they can proceed without a full DA. Others may require council approval. We'll advise you on the most likely approval pathway at the quote stage.

We work with premium decking timbers including spotted gum, blackbutt, merbau and treated pine. We also install composite decking for lower maintenance. We'll recommend the best option for your budget, location and aesthetic.

Yes — we take on jobs of all sizes. Whether it's a single door replacement, a small repair, a half-day carpentry job or a full renovation — we're happy to help. Call 0432 826 086 or submit a quote request above.

Yes. All our work is backed by a defects liability period as required under the NSW Home Building Act. We stand behind everything we build — if something isn't right, we fix it.

You can verify any builder's licence on the NSW Fair Trading licence check website at fairtrading.nsw.gov.au. Search by name or licence number. BuiltByAJ is fully licensed under the NSW Home Building Act — ABN: 58 303 616 851.

Yes to all three. In the Sutherland Shire we work in Cronulla, Burraneer, Caringbah, Sylvania Waters, Lilli Pilli and Blakehurst. On the Northern Beaches: Manly, Seaforth, Balgowlah Heights and Clontarf. On the Upper North Shore: Turramurra, Pymble, Gordon, Killara and Wahroonga.

As NordicWellness Australia's authorised Sydney installer, we install the full range — including the XL Pod Sauna, Oasis Sauna, Barrel Saunas and custom indoor sauna rooms. We handle delivery, site preparation and full installation. See our sauna installation page.

Simple and transparent: (1) You contact us by phone, WhatsApp or online form. (2) We arrange a free on-site visit and give you a detailed written quote. (3) You approve and we lock in a start date. (4) We keep you updated throughout. (5) We finish on time and leave the site clean.

We handle the building and carpentry scope — including wall framing, fit-outs, custom joinery and cabinetry. For full wet area renovations requiring licensed plumbing and electrical, we can advise on the right approach and trades for your project.

Lead times vary by season and current workload. We typically schedule new projects within 2–4 weeks of quote acceptance. For urgent projects, call 0432 826 086 directly — we can often accommodate faster.

We typically work Monday to Saturday, 7am–6pm. Weekend availability varies depending on the project schedule. Ask us at the quote stage — we do our best to work around your timeline.

Yes — see our work page for video walkthroughs of completed decks, sauna installations and renovations, and our Instagram @builtbyaj_. We're also happy to arrange a reference call with a previous client on request.