BuiltByAJ
Sydney, Australia

Built to last.

The Sydney builder that gets it right the first time. Licensed, insured and 5-star rated — trusted by homeowners in Mosman, Double Bay and the Eastern Suburbs.

0 ★★★★★ Google Rating
0 5-Star Reviews
0 Years Experience
0 Projects Completed

Serving Sydney since 2018  ·  Licensed & Insured  ·  Free Quotes

“The best in the business. Carpentry to perfection and detail.” — John Kandylas, Google Review ★★★★★
About

We don't cut corners.
We build them properly.

BuiltByAJ is a Sydney-based premium building and carpentry company built on one principle — do the job right. Every time. We bring the same uncompromising standard to every project, every suburb, every client. No shortcuts, no hidden costs, no excuses. Just quality workmanship that stands out long after the job is done. We are also Sydney's authorised installer for NordicWellness Australia — bringing premium sauna installation experiences into homes across the city.

Serving Sydney since 2018. Licensed and insured.

Currently taking on new projects in Sydney

Follow our work

New projects posted regularly — follow along @builtbyaj_

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Wainscoting Installation Kingsgrove
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Jamb Cutting South Coogee
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Property Renovation Hurstville
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Job Walkthrough Balmain
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Cedar Cladding Mosman

Sauna installations
done right

Sydney's authorised NordicWellness Australia installation partner

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XL Pod Sauna Coal Cliff
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Delivery & Pickup Sydney
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Oasis — 3 Person Sauna Burraneer
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Oasis — 2 Person Sauna Balmain

Sydney projects that speak
for themselves

Full home renovation North Wahroonga Sydney by BuiltByAJ
Full Renovation North Wahroonga

Full Renovation · North Wahroonga · 2024

Custom kitchen and living room build Blakehurst Sydney by BuiltByAJ
Custom Build Blakehurst

Custom Build · Blakehurst · 2025

Laundry renovation North Wahroonga Sydney by BuiltByAJ
Laundry Renovation North Wahroonga

Laundry Renovation · North Wahroonga · 2025

Kitchen renovation Wahroonga Sydney by BuiltByAJ
Kitchen Renovation Wahroonga

Kitchen Renovation · Wahroonga · 2024

What we build
across Sydney

From a single door replacement in Mosman to a full custom build in the Eastern Suburbs — every job gets the same standard of care.

Get a Free Quote
01

Carpentry & Fit-Outs

Hand-crafted timber work, precision fit-outs and repairs built to the highest residential standard. No flat-pack solutions — everything made and installed properly.

02

Door Installation Sydney

Supply and installation of internal and external doors — solid core, flush or feature. Perfect alignment, quality hardware and clean reveals every time.

03

Framing & Structural Work Sydney

Wall framing, structural alterations and load-bearing work done with proper planning, full compliance and no half-measures.

04

Decking & Outdoor Structures Sydney

Hardwood and composite decking, outdoor platforms and privacy screens built to withstand Sydney's climate without compromise.

05

Awnings & Pergolas Sydney

Custom steel awnings, pergolas and shade structures designed to complement your home — built to last decades, not seasons.

06

Renovations & Custom Builds Sydney

Full home renovations and custom builds — dedicated project management throughout, no hand-offs. On time, on budget, no excuses.

07

Sauna Installation Sydney

Premium sauna installation from delivery through to final fit-out — fully integrated into your home. Every detail handled for you.

Official Sydney Installation Partner

The standard every job is held to

Licensed & Insured

Fully licensed under the NSW Home Building Act with public liability insurance on every single job.

5-Star Rated

18 five-star Google reviews from real Sydney homeowners. No exceptions, no excuses.

Always On Time

We show up when we say we will. Your time is valuable and we treat it that way.

Direct Communication

Call or WhatsApp and get a real response. No call centres, no delays, no runaround.

Ready to get started?

What Sydney clients
say about us

5.0
★★★★★
18 Google Reviews
✓ Verified Google Business Reviews
View all reviews on Google
5.0 Rating
Verified Business
NSW Licensed

Our Sydney process,
made simple

01

Get in Touch

Call 0432 826 086 or submit a quote request online. We'll discuss your project, answer your questions and give you an honest overview — no obligation.

02

Site Visit & Written Quote

We come to your Sydney property, assess the job in person, and give you a clear written quote. No surprises. No hidden costs.

03

Delivered. Every Time.

We deliver. On time. Site left clean. Finished to the standard BuiltByAJ is known for across Sydney.

Sydney's
premium suburbs

Based in Bexley, BuiltByAJ services homes and properties across all of Greater Sydney. From Mosman and the Eastern Suburbs to Inner West, Sutherland Shire and beyond — wherever the job is, we'll be there.

Not sure if we cover your area? Call us on 0432 826 086.

Primary Focus

  • Mosman
  • Double Bay
  • Potts Point
  • Eastern Suburbs
  • Inner West
  • Vaucluse
  • Rose Bay
  • Woollahra

Also Servicing

  • Sutherland Shire
  • St George
  • Bayside
  • Sydney CBD
  • South Sydney
  • Hunters Hill
  • Manly
  • Cronulla
  • Wahroonga
  • & surrounding suburbs

Common questions
answered

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 — we're proud to provide them. 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 depending on size and complexity. A partial renovation can take 2–6 weeks. We give you a firm, realistic timeframe at the quote stage — and we stick to it.

We cover the full range — from small carpentry repairs and door replacements through to full home renovations and custom builds. Common jobs include: decks and pergolas, door installation, wall framing, custom fit-outs, sauna installation, steel awnings and cabinetry. If it involves building or skilled carpentry, call us — we'll tell you honestly whether we can help.

Yes — we are Sydney's authorised installation partner for NordicWellness Australia. We handle everything from delivery through to final fit-out, fully integrated into your home. Contact us for a free sauna installation quote.

Sydney homeowners choose BuiltByAJ — over 50 projects delivered

Licensed & Insured

ABN: 58 303 616 851

Get a free quote
from your Sydney builder

Fill in the form and we'll call you back to discuss your project. Or call us direct — we pick up.

e.g. 0432 826 086
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We typically respond within 2 hours

Request received.

We'll be in touch shortly to discuss your project.

BuiltByAJ is a licensed and insured Sydney building and carpentry company with over 7 years' experience delivering premium residential construction across Greater Sydney. Based in Bexley, our team operates across every corner of the city — from heritage homes in Vaucluse and Rose Bay to modern renovations in Paddington and Woollahra. Trusted by homeowners across Mosman, Cremorne, Neutral Bay and the Upper North Shore, as well as Kingsgrove, Balmain, Hurstville, South Coogee and beyond. Premium building and carpentry across Hunters Hill, Gladesville, Drummoyne and the Inner West. Serving Cronulla, Burraneer, Sylvania Waters, Blakehurst and all of the Sutherland Shire. Wahroonga, Turramurra, Pymble, Gordon and the Hills District — we cover it all. Services include custom carpentry and timber fit-outs, wainscoting installation, cedar cladding, door installation and replacement, wall framing and structural work, hardwood and composite decking, custom pergolas and steel awnings, sauna installation, and full home renovations. We are also Sydney's authorised NordicWellness Australia sauna installation partner — delivering XL pod sauna installations in Coal Cliff, Oasis sauna fit-outs in Burraneer and Balmain, and premium sauna installations across the Eastern Suburbs, Mosman and Greater Sydney (NordicWellness Sydney). Every project is professionally managed by our team from first quote to final handover. We're fully licensed and insured under the NSW Home Building Act and operate to the NSW Building Code of Australia. Get a free quote: call 0432 826 086 or submit online. ABN: 58 303 616 851. Sydney homeowners trust BuiltByAJ for quality craftsmanship that lasts.

Call or WhatsApp us — 0432 826 086
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