Not all asphalt quotes are equal. Here is what to check before you sign with any bitumen contractor on the Central Coast.
Why the Quote Is the Last Thing to Compare
Most people shopping for an asphalt contractor start by getting three quotes and choosing the middle one. The logic is understandable but the approach is flawed, because quotes for asphalt work are not quotes for the same thing unless the specification, materials, and method are identical. A quote that is 20% cheaper than the others is almost always cheaper for a reason: thinner asphalt, inferior mix design, skipped compaction testing, or a sub-base assessment that was never done.
This guide gives you the questions to ask and the things to look for before you compare prices.
Getting other quotes too? Smart. Take our one-page checklist along:
Download the questions sheet (PDF)Owner-Operated vs Franchise vs Subcontracted
The structure of the business doing your work matters more than most people realise.
An owner-operated contractor typically has their name, licence, and reputation directly on the line for every job. The person who quotes you is often the person running the crew on site. Accountability is direct and problems get resolved promptly because there is no corporate layer between the customer and the person responsible.
Franchise operations and larger group businesses often subcontract the physical work to smaller crews who are engaged on a job-by-job basis. The quality of work varies with whoever the subcontractor sends that week. This is not universally true, but it is common enough to be worth asking: will the crew on site on the day be your employees or subcontractors?
On the Central Coast, where the market is relationship-driven and word of mouth matters, owner-operators tend to have a strong incentive to deliver well. Ask who will personally be supervising your job.
Sub-Base Preparation: The Most Important Question
A well-specified asphalt layer on a poorly prepared sub-base will fail. This is the single most common cause of premature asphalt failure on residential and commercial sites.
Before any contractor quotes your job, they should be asking you, and you should be asking them:
- What depth of excavation is proposed, and to what level?
- What base material will be used (DGB20 crushed rock is standard), and to what compacted depth?
- Will the base be tested for compaction before asphalt is placed, and with what equipment?
- How is drainage being handled, and what fall is being designed in?
A contractor who quotes without discussing these questions has not diagnosed your job. They are pricing a surface treatment, not a pavement. Those are different things and produce different outcomes.
Understanding Mix Specifications: AC10, AC14, and Spray Seal
The asphalt specification affects durability, finish, and suitability for the application. A contractor should be able to explain what they are specifying and why.
AC10
AC10 is a fine-graded asphalt with a maximum aggregate size of 10mm. It produces a smooth, closed surface finish and is the standard specification for residential driveways and light commercial areas. It handles foot traffic and light vehicle loads well and provides a neat appearance.
AC14
AC14 has a maximum aggregate size of 14mm and is a more open-graded, robust mix. It is appropriate for commercial car parks, driveways with regular heavy vehicle access (trades vehicles, delivery trucks), and areas with significant turning loads. It is less susceptible to rutting than AC10 under heavier loads.
Spray Seal
Spray seal (bitumen seal) is a sprayed binder with aggregate rolled in. It is appropriate for rural driveways, large-area applications where budget is a primary constraint, and as a holding treatment over an existing surface. It does not produce the same smooth finish as asphalt and is not appropriate for all residential applications. A contractor who recommends spray seal for a suburban driveway where asphalt is expected should be able to explain the reasoning clearly.
What a Proper Quote Should Include
A professional quote for asphalt work is not a single line item number. It should specify:
- The scope of work: what is being removed, what sub-base work is included, what asphalt is being laid and to what compacted depth
- The asphalt mix specification: grade, binder type, and where it is being sourced
- The drainage approach: how surface water will be managed and what fall is being designed in
- Compaction testing: whether density testing is included and by what method
- Exclusions: anything that is not included in the quoted price
If a quote does not address sub-base preparation, drainage, or compaction testing, ask for those items to be specified in writing before you accept it. Vague quotes allow contractors to cut corners on the most important parts of the job.
Red Flags to Watch For
Certain practices indicate a contractor who is cutting corners or lacks the capability to do the job properly:
- No site visit before quoting: Asphalt cannot be properly specified or priced from photos or measurements alone. A contractor quoting without visiting the site has not assessed the sub-base, drainage, or site access constraints.
- Cold-lay patches as a primary treatment: Cold-mix asphalt is a temporary repair material. It should not be offered as a permanent solution for potholes or panels. It fails quickly and masks the underlying problem.
- No ITP or quality records: An Inspection and Test Plan (ITP) is a document that records what was checked, when, and by whom during construction. For commercial work especially, absence of any quality documentation means there is no verifiable record that the work was done to specification.
- Pressure to decide immediately: Pricing pressure tactics ("this price is only valid today") are common in door-to-door asphalt operators who are running leftover material from another job. Reputable contractors price their work accurately and don't need high-pressure tactics to close work.
Reading Google Reviews for Contractors
Google reviews are a useful signal but require some interpretation. Look for reviews that describe the outcome after several months or a year, not just the day of installation. A surface that looked good on the day but cracked within 12 months tells you much more than a 5-star review posted the same week as the job.
Look for reviews that mention specific aspects of the work: sub-base preparation, drainage outcomes, whether the contractor returned to address any issues. Generic reviews praising the crew's friendliness are less informative than reviews describing a specific problem that was handled professionally.
Negative reviews are worth reading carefully. A pattern of drainage complaints, recurring cracking, or contractors not returning to address defects is more meaningful than a single outlier review.
BWB's Approach
Brisbane Water Bitumen quotes and lays with the same crew. The crew that quotes your job lays the asphalt, which means the people who assessed your site are the same people responsible for the outcome on the day. We carry compaction testing equipment on all jobs and apply RMS-standard compaction requirements to private work. We have been operating on the Central Coast for over 30 years, and our reputation is our primary business asset. If you'd like a straight conversation about your project, call us on 0447 039 682 or send an enquiry through the contact page.
