WE PROUDLY OFFER WHAT OTHERS DON'T

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We know the industry ​

With over 15 years professional experience, we are experts within the automotive repairs, finance and used vehicle market in order to bring you a specific sets of skills that sets us apart from your average mechanic. 

Anyone with basic tools can go out and have a look at a car....we pride ourselves as keeping the upmost professionalism and skill throughout the entire process. ​

Licensed mobile mechanic repairers licence   MVRL57595​

We are a licensed mobile vehicle workshop. 

What does that mean?
We do NOT use unreliable third party mechanics to conduct any of our inspections.

Mechanics are hired directly by Double Chex with the right inhouse training received. 

​Our repairers licence will also allow us to disassemble and diagnose any components in accordance with manufacturers standards.

Compression Leak Testing
​(head-gasket condition)

The Compression leak test detects any presence of Co2 (carbon dioxide) within the cooling system.​

​The presence of Co2 indicates there is an internal combustion leak within the engine which will ultimately cause compression drop in the cylinders and resultant head gasket failures. ​​

Independent Asset Valuations

We supply you with a unbiased independent valuations of the subject vehicle of how much we think you should be paying.

​With attached market examples to ensure our you are paying within the expected market value for your next investment.  We take the overall condition and kilometres travelled into consideration. 
​​

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Servicing Sydney and surrounding areas

• Auburn 
• Austral
• Badgerys Creek
• Bankstown
• Bella Vista
• Beverly Hills
• Bondi
• Concord
• Campbelltown
• Central Coast
• Ermington
• Fairfield

• Hunters Hill
• Illawarra
• Ingleburn
• Londonderry
• Macquarie Park
• Narrabeen
• Northmead
• ​North Sydney
• Pennant Hills
• Putney
• Sydney Olympic Park
• Zetlands

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WHAT DO YOU RECEIVE?
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VEHICLE INSPECTION REPORTS ARE PERSONALLY TAILORED TO SUIT EACH INDIVIDUAL VEHICLE - NOT JUST A GENERIC TEMPLETE 

100+ HIGH DEFINITION IMAGE SCHEDULE

PPSR CERTIFICATE

CARHISTORY REPORT (valued at $36.95)

MARKET VALUATION (with online examples) 

ONSITE PHONE CALL

 COMPREHENSIVE TEST DRIVE COMPLETED - NOT JUST AROUND THE BLOCK
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 A COMPETENT TRADESPERSON WITH INDUSTRY EXPERIENCE 

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OUR PRE PURCHASE VEHICLE INSPECTION SERVICES

*Additional charges may apply subject to vehicle configuration and location outside Sydney metro

Pre Purchase Car Inspections

get started

• Family vehicles

• Utility's 
• Commercial vans
• Sport 
• Luxury cars 
• Prestige cars
• SUV's
• Classic cars 
• Muscle cars
• Australian muscle
• American muscle

Pre Purchase Truck Inspections

get started

• Prime mover
• Tipper trucks
• B Double combinations
• Agitators
• Curtain-sider trucks
• pan-tech trucks
• Crane trucks
• Motorhomes
• Bus
• Pantech
• Delivery vans
• flatbed trailers
• Skel trailers 

Pre Purchase Excavator Inspections

get started

• Excavators
• ​Mini excavators
• Bobcats
• Forklift
• ​Front end loaders
• Tractors ​
• Skid steer loaders
• Speciality equipment
• Auxiliary attachments
• bucket inspections

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Are you an interstate buyer?

We strive to complete a comprehensive pre purchase vehicle inspection based in Sydney, NSW which allows our clients to purchase the vehicle in confidence without the hassle of flight bookings, hire cars and hotels costs just to look at a lemon! (which can be quite expensive)

Double Chex will send you a same day easy to read report providing you with the tools you need to make your final decision all from the comfort of your living room.

Our inclusions including a vast amount of high-resolution images will provide you with you the information you need leaving no stone unturned. 
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Please explore our website and see what exactly you receive with our services. Or, request a sample report here

We have proudly worked with...

Associate bodies...

What Sets Double Chex Apart Regarding Car Valuation in Sydney

There are several reasons why you would benefit from relying on our trusted and reputable service.

• Our team has more than 15 years of collective knowledge and experience in the industry. You can enjoy the benefit of our extensive knowledge about all aspects surrounding the purchase of a used car in Sydney. Our proficiency covers all elements from financing to repairs of used and classic cars.
• We have a licensed mobile vehicle workshop, and our team of professional mechanics will take complete care to inspect every aspect of the vehicle you’re planning to purchase, at your premises. We understand that the deal might be time-sensitive and therefore we go out of our way to bring you your car pre-sale valuation report on the same day.
• Not all concerns can be seen. We take extra care to provide you with certainty about your investment by adding compression leak testing to our service. We can determine if there is any carbon dioxide in the car’s cooling system through compression leak testing, which a clear indication of internal combustion leaks. You would want to know this before investing in any used or classic car.

​Purchasing any kind of vehicle is an investment, and we provide you with the information to avoid making a risky deal.

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What You Can Expect from Double Chex Regarding Classic Car valuation

One of our much-appreciated services in Sydney is our muscle and classic car valuation inspections. When you bring a classic car to our workshop for a pre-sale valuation, we know you want certainty, and you want it quickly as these deals are often time-sensitive.

• Our team have the knowledge and skills to offer you a wide range of services and can provide you with a complete report in easily understood terms.
• We can also provide you with a car history report, giving you insight into its background and access to valuable information.
• Our comprehensive testing on every classic car includes a rust analysis, testing of the head-gasket as well as anti-freeze/anti-boil tests. As soon as we conclude our investigation of the classic car, we’ll give you a call to discuss any concerns without wasting time.

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Book your next inspection with us

No Payment required until inspection is confirmed

Tue, 10 May 2022 16:19:11 +1000 Weebly Thu, 16 Dec 2021 22:28:09 GMT https://www.doublechex.com.au/blog/how-to-tell-if-your-odometer-has-been-rolled-back-insider-tips

It is always a question you ask when the perfect used car sitting in front of you....... is This to good to be true? Sometimes it is. 

It's not a good feeling when you make the grim discovery that your odometer has been tampered with afters you fork our thousands of your hard earned dollars on a car or truck.

Service History 

the most crucial component in discovering potential odometer rollback is checking the vehicles service history either from service book or requesting what's called a 'service printout' with the servicing dealership.

The lack of service history supplied from the dealer or private seller already raises a red flag on the car's unknown history.

What you should also be checking is that if the vehicle has a service book, you need to make sure that its not a reprint or reproduction book with forged numbers.  Blank service books can commonly be purchased on the internet. 

Older vehicles with rotary style odometer readings 

If your are looking at a vehicle with a rotary style odometer gauge you will always need to ensure that the numbers are LINED UP CORRECTLY.

These old style gauges are very hard to lined back up within the gear mechanism and 9 times out of 10, they always never line up correctly. 

Inspect the general wear and tear of the vehicle 

OK.  So you have a vehicle with a full service history that has been confirmed by the dealership or servicing mechanic? that's great.  the last part of your investigation is inspection of general wear and tear items that are commonly worn down with cars or truck with higher mileage;
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• Steering wheel material - worn leather or vinyl from skin oils/makeup 
  
• Worn floor carpets, particularly around the pedals - from the driver's heel digging into the carpet while driving 
  
• Worn/cracked drivers seat - this includes cracked leather and worn material exposing some the of foam ​
  
• ​Worn seat belts 

Have your car inspected by a professional 

The final stage of your investigation will be to have a certified technician inspect the vehicle with speciality tools and computer scanning equipment to ensure that, in fact, the indicated mileage of the vehicle is correct.

Various cars and trucks have different measures or configurations, so some of the above points may not be applicable to your vehicle, however, its a good start. 

]]> Wed, 21 Jul 2021 05:43:50 GMT https://www.doublechex.com.au/blog/what-is-a-paint-thickness-test-on-a-car

A coating thickness gauge is utilised to test the coating thickness of ferrous and non-ferrous metals (otherwise known as magnetic and non-magnetic metal surfaces).
Ferrous metals include;

• Steel panels
• Iron chassis and engine blocks

Non-ferrous metals include;

• Aluminium panels
• Tin panels

When conducting an inspection and a piece of equipment, we are able to determine not only the thickness of the subject panel coating (i.e paint), but to determine whether there are any underlaying imperfections that we cannot see to the naked eye.
These imperfections include;

• Body rust
• Chassis rust
• Body filler
• Substandard welds
• Rust plates
• Fish plates
• Sand blasting
• Primer thickness
• Body deadener

All of the above mentioned are crucial factors in determining if the subject vehicle deemed as being safe with no other unexpected pre-existing damages or repairs.
In short, a coasting thickness or paint thickness test is crucial when completing vehicle inspections. No matter if it is for a pre-purchase inspection, warranty inspection or repair dispute inspections. 

]]> Sat, 13 Mar 2021 04:39:31 GMT https://www.doublechex.com.au/blog/advantages-of-using-an-infrared-gun-for-diagnostic-procedures

For all our classic vehicle inspections, inclusive of all vehicle not equipped with a suitable diagnostic port.

We measure the exhaust port temperatures outlets for any abnormalities in heat coming out of the combustion chamber.  With a classic and muscle car inspection pre purchase inspection this test is not only suitable to outlet gas temperatures (on the right exhaust manifold), but also braking systems, air-conditioning systems and HVAC systems.

​Here are some of the advantages when using an infrared gun when diagnosing vehicles without a suitable diagnostic port.  

Various aspects of engine components

With classic and older vehicle, the infrared gun is particularly useful when checking for any hot spots such as exhaust manifold temperatures on suitable manifolds, air conditioning compressors, power steering pulleys, any belt slip, catalytic convertor temperatures and coolant temperatures. 

Braking systems

This is  self explanatory, however, brakes systems can be used to measure the performance the brake callipers or drums post test drive to ensure each wheel brake is operating as it should. 

HVAC Systems

A critical element of purchasing a new vehicle, is the air-conditioning and heater working as it should?

A infrared gun can be suitable to measure the outlet air of the cabin vents to ensure heating and cooling capabilities.

This can test at the output vents, along all lines and at the condenser for a complete diagnosis of the entire system. You can also use it to identify if heating system failures are due to coolant circulation problems or blend door issues.

]]> Tue, 07 Jan 2020 04:22:13 GMT https://www.doublechex.com.au/blog/buying-a-used-car-dealership-vs-private

Buying a vehicle can be an exciting time in your life, people often buy vehicles as a statement piece and can be very proud of their new wheels!  On the other hand, buying a used car can also lead of a lot of headaches, arguments with the seller and even court appearances in some cases.
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Below are just some tips for people looking at purchasing their next car and taking the necessary precautionary methods to make a successful transaction.

Buying from a dealership:

It is always recommend buying from an authorised dealership based on the following factors;

1. Guaranteed that there are no monies owing on the vehicle (i.e. finance)
2. Dealerships will have to disclose any vehicle history of requested by potential buyer
3. Dealerships will have to advise of any odometer rollbacks reported
4. Dealerships will have to disclose if the vehicle has been in any major accident deeming it to be a repairable write off, include hail and flood damage
5. Dealership have to supply the seller with a statutory 3-month warranty period - always read the product disclosure statement before proceeding with purchase

It is recommended that the seller ask about the above-mentioned items to gain an understanding of the vehicles past life.

If your still unsure whether to go ahead with the inspection or not, just get a professional to come out and look at the vehicle and get a comprehensive report in writing.

This will usually save you all the back and forward phone calls and a lot of time.
With all the issues set in writing you will then be able to negotiate your final offer depending on the outcome of the vehicle inspection report.
 
Buying from a private seller:

Buying from a private seller can seem like a better option in some cases by one major factor, the asking prices are almost indefinitely cheaper!  Whilst this option can seem appealing, nothing comes without its downfalls. 

Please consider the following factors that all used car buyers should take into consideration before making their initial offer;

1. Ensure that the person selling the car is the actual authorised owner – please check this by cross-referencing the registration certificate.
2. Ensure that there are no monies owing on the vehicle – complete a vehicle REVS check or PPSR certificate
3. The vehicle should be sold with an up to date roadworthy certificate – this can vary from state to state but a general rule of thumb is that the roadworthy certificate should not be over a month old – please check with the applicable state authority for exact time frames.
4. Ensure that the registration number stamped on the body matches the number listed on the registration certificate
5. Once you have completed your REVS check or PPSR report , ensure that the engine number matches the one listed on the report – if these numbers do not match, this is a sign that the engine may have been replaced at some point in time.

If the above-mentioned factors are out of your capabilities, again, it is recommend engaging the services of a certified vehicle inspector and mechanic to come out onsite and report on these items as they are crucial elements that will make your car purchase a breeze.

Also, there are no grace or warranty periods for all private vehicle sales, so it is essential that the seller is aware of all the red flags and ensuring that there are no question marks when making their final offer.   

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