NSW's Trusted Unrestricted Certifiers

We're a team of accredited unrestricted certifiers who move fast, communicate clearly, and take pride in getting your project from blueprint to site in record time.

Get a Free Quote 0421 936 489

About Us

Who we are

No 1 Building Services is a leading provider of residential, commercial and specialist building certification and compliance guidance. We bring 15 years of experience, expertise, latest technology, and a fast response to help your development succeed.

Our team of qualified certifiers and inspectors brings expertise and attention to detail to every project we undertake. Whether you're a homeowner, builder, developer, or designer, we are committed to providing complying development certificates (CDC), construction certificates (CC), and occupation certificates (OC) efficiently.

Reasons why clients choose us

We provide quality, trusted building certification and compliance services across New South Wales.

Personalised
Approach

We take the time to meet, understand, and assess your project requirements. No generic templates—just practical, direct solutions tailored to your development.

Cost Effective

Clear, transparent pricing based strictly on your project scope with no hidden compliance fees or surprise costs.

Fully Insured

Guaranteed protection with complete Professional Indemnity cover.

Licensed

Fully registered, accredited unrestricted building certifiers.

Eco-Friendly Products

We strictly coordinate visual and timber pest inspections using approved eco-friendly treatments that are completely baby and pet safe.

Free Quotes

Upfront fee proposals with no obligation to help get your project budgeted.

Credentials

Accreditations & Authority

We operate under strict NSW legislation with full unrestricted authority. This allows us to certify buildings of any size, height, or complexity with total confidence.

Licence No. BPB123456

NSW Fair Trading

Registered Unrestricted Building Certifier in New South Wales.

Unrestricted Status

Class 1–10 Authority

Authorised to certify all building classes with no height or floor area limits.

Active Coverage

Full PI Insurance

Complete Professional Indemnity cover protecting every project.

Regulated Practice

Building Commission

Operating strictly under the Building and Development Certifiers Act 2018.

Maintained Compliance

Annual CPD

Continuously updated training on NCC and SEPP amendments.

Where We Work

Sydney Metro & Greater NSW

Our certifiers travel directly to project sites across the Sydney metropolitan area and surrounding regions. If your project falls outside the areas listed below, don't hesitate to contact us - we travel for the right project.

Call 0421 936 489

CamdenCampbelltownCanterbury-BankstownFairfieldLiverpoolWollondillyPenrithThe Hills ShireBlacktownHawkesburyBlue MountainsCity of SydneyInner WestBurwoodCanada BayStrathfieldCity of Parramatta CouncilCumberland CouncilNorthern BeachesKu-ring-gaiHornsbyNorth SydneyLane CoveMosmanRydeWilloughbyHunters HillRandwickWaverleyWoollahraBaysideGeorges RiverSutherland ShireCity of NewcastleLake MacquarieMaitlandPort StephensCessnock+ More on request

Ready to fast-track your approval?

Talk to Saroj, Daniel and the team today. Get a clear answer on your certification requirements - no obligation, no runaround.

Call 0421 936 489 Get a Free Quote

Get in touch

Request a quote

We'll review your project details and get back to you within 24 hours.

Building certifier inspecting blueprints

Unrestricted certifiers

Your project is reviewed directly by NSW-accredited certifiers - no middlemen.