Dedicated to your Goals and assisting property owners with Compliance.


Welcome to D. G. Certifiers

We have the resources and have built excellent industry relationships over time, to provide you with everything that is required for Building Certification and Approvals and Pool Safety.

D. G. Certifiers working with home owners, home builders, owner builders, property developers and other industry professionals providing private certification services, issue of building approvals, inspection services and consultancy services.

Working with you to provide the expertise and professional service which we customise and simplify for you, specific to your project to achieve your goals.

We provide building approvals and inspection services throughout Queensland to include the following Local Government areas:

  • Brisbane
  • Moreton Bay
  • Sunshine Coast
  • Gympie

  • Somerset
  • Scenic Rim
  • Gold Coast
  • Logan

  • Redlands
  • Ipswich
  • Lockyer Valley


Building Certification and Consultancy Service

  • New houses
  • Alterations, additions, renovations
  • Studios/Secondary Dwellings/Granny flats
  • Underpinning, house raise
  • Sheds, Carports, Garages
  • Decks, Verandas, Patios, Pergolas, Shade Sails
  • Enclosing in garage or patio/deck
  • Retaining Walls, Block-wall fencing
  • Industrial commercial sheds up to 2000sqm
  • Mezzanine floors in sheds, total area of 2000sqm
  • Swimming pools, spas and plunge pools
  • Demolitions and Removals
  • Small Lot Assessment
  • Facilitate Energy Efficiency Assessments
  • Manage Amenities and Aesthetics applications to Council
  • Manage Design and Siting applications to Council
  • Manage Plumbing applications for new works to Council
  • Manage Build Over Sewer applications to Council
  • Town Planning assistance & liaison with Town Planning Consultants

Onsite Visit Consultancy Service

D. G. Certifiers Pty Ltd provides the property owner, designer, or builder with specific approval and Building Code advice at the concept design stage to save you design time and project costs and if the building work is existing, then what would be required to gain an approval and final certification.

We can provide you with upfront Building Code consultancy advice to guide you through all requirements. To arrange an appointment for our Building Certifier to attend onsite, please complete the Online Enquiry Form, or telephone our Narangba Office on (07) 3385-5004. Fees Apply.

Our Recent Google Reviews

Thank you so much Debbie not just for your knowledge, but your kindness and of course patience to my never ending question and worries. Your timely reply’s and reassurance really did help me at the hardest times...Darrly was very friendly approachable and knew his stuff.highly recommend D G Certifiers would defiantly use them again.
dee rawoth
dee rawoth
12:07 18 Mar 19
An absolute delight to deal with they were very helpful and were more than willing to give advice on what was needed a very pleasant experience overall
michael tol
michael tol
08:58 17 Jan 19
I was so pleased with the efficiency and professionalism that both Deb & Daryl gave us. My husband and I are very happy with all the support given. Deb was always cheerful and nothing was too much trouble. Daryl was very informative and ethical during our building process, and patiently sorted out many of our concerns. You would be hard pressed to find good old fashion service like this anywhere else these days.We are grateful to you both.Kim
Kim O'Keefe
Kim O'Keefe
14:24 16 Jan 19
They certified our pool removal. Communication was prompt and clear. The work was carried out efficiently and according to schedule.
Mike Patterson
Mike Patterson
20:27 20 Dec 18
Excellent service and fantastic advice. Darryl and Debbie have been assisting me with a complex building issue and have been exceptional with their support. Along the way they have also provided building approval and certification for an outdoor swim spa with a quick turn around at a busy time of year. Would highly recommend for top quality advice.
Paul Crawford
Paul Crawford
12:04 17 Dec 18
D & G Private Certifiers were brilliant.They were efficient & extremely helpful. All our questions were answered & explained so we knew exactly where we stood in regards to changes we wanted to make in our house.Thanks Debbie & Darryl we really appreciate your helpJohn & Linda Higgins
Linda Higgins
Linda Higgins
12:23 05 Dec 18
I rang today to get some general information. I spoke to Debbie who was the most polite, helpful person. She gladly gave me all the information I needed & even emailed me confirmation. I would certainly recommend
Kazza Dean
Kazza Dean
02:27 29 Nov 18
I made a enquiry about the building inspections, the answer from GD certifiers is very helpful to me. the staffs are very nice, friendly and professional.
Hugh Jin
Hugh Jin
01:28 28 Nov 18
D G Certifiers helped me approve my ‘as built’ carport through the council process. They were helpful and efficient and provided and asked for info in a timely manner. The steps were clearly outlined to me by Debbie and Darryl provided the technical detail I needed in order the comply. The sale process depended on this certification and the team assisted me to get it done in time. A big thank you!
Alan Tompkins
Alan Tompkins
05:43 08 Nov 18
If anyone wants a job completed with a five star racking, then look no further! A fully experienced and professional team with a high level of customer service. Darryl is thorough, helpful and fully experienced in his field. The office staff couldn't do enough to help out when the process was in transit. I highly recommend this business...
Stephanie Vesper
Stephanie Vesper
21:58 06 Aug 18
I used DG Certifiers to certify the conversion of an aquatic tank to a plunge pool. From my first phone conversation with Debbie through to final sign off, I found both Darryl and Debbie to be very helpful, patient and professional. Darryl took time to explain to me the criteria he needed to meet to be able to pass such a conversion, which enabled me to focus on providing him with that specific information. Overall I was very satisfied with the service DG Certifiers provided me with and I would have no hesitation in recommending them or using their services for my next project.
Colin Phillips
Colin Phillips
11:04 17 Jun 18
Very professional and thorough. Also, friendly and helpful with all communications. Highly recommended.
Sue Irwin
Sue Irwin
05:27 21 May 18
Excellent team. Speedy response and service beyond expectations. Thank you Debbie for your advice throughout the process! We would highly recommend.
tyrone williams
tyrone williams
20:28 17 Apr 18
Debbie was fast and efficient. Her response time to emails was great and overall we received a fantastic service. Throughout the process she made great recommendations and we now have the building approval to build our home. Thanks!
Deborah Mccall
Deborah Mccall
23:04 08 Jan 18
Exceptional service from start to finish! Asked DG Certifiers to complete a pool safety certificate (recently expired) and approvals/certification on a Titan shed I'd built 6 years earlier (but never did the final - my own laziness) and I couldn't have asked for an easier process.From the time I engaged their services to completion was barely a couple of weeks. Once the paperwork was done - Darryl completed an inspection - gave me a list of additional items to complete (which I did) and that was it.Huge thanks to Darryl and Debbie at DG Certifiers - highly recommended!
Matt Jeavons
Matt Jeavons
20:00 08 Dec 17