Comparing driveway quotes: make the missing details visible

Send the same brief to each business

Provide the same area sketch, photographs, intended use and known problems to everyone you approach. Show which paths, borders, entrance sections and access covers are included. Explain access restrictions and any important dates, without insisting that an unassessed programme is guaranteed. Ask each business to distinguish information it has checked on site from assumptions based on your description.

If contractors propose different solutions, retain both options but do not compare them as though the construction were identical. Ask why one recommends retaining the base and another proposes replacement. A difference may reflect evidence, risk allocation or simply missing information. Resolve it through questions about the site and specification rather than assuming the highest or lowest price must be the most honest.

Use confirmed, excluded and unconfirmed as separate labels

Make a row for every important element and a column for each quotation. Copy the wording or reference the relevant quote section. Mark an item confirmed included only when the documents support that conclusion. If the item is absent, mark it unconfirmed rather than assuming that it is excluded or included. Request clarification and keep the written reply with the original quote.

Describe the proposed resin system precisely enough to recognise a substitution. Record bound or bonded construction, named binder, aggregate blend, layer specification, edge detail and the proposed base preparation. Ask how finished levels and drainage have been addressed. Product names and certification claims can be investigated, but their presence alone does not prove that the entire installation has been designed correctly.

• Measured area and exact boundary of the work.
• Removal, preparation, base work and waste disposal.
• Surface specification, borders, drainage and cover adjustments.
• Tax basis, exclusions, allowances and total payable.
• Programme assumptions, access needs and handover documents.

Understand allowances, changes and payment stages

Separate fixed-price work from provisional amounts and optional additions. For an unknown base condition, ask what investigation is possible and how any extra work would be priced. Agree who authorises changes, what evidence is supplied and when the revised total is confirmed. A verbal promise to sort it out later gives you little basis for comparing the financial risk between proposals.

Request payment stages that clearly describe what triggers each payment, alongside the business identity and contract terms. Check whether VAT is included and ask for clarification of conflicting totals. Do not treat a square-metre rate as the final payable sum unless every other charge is accounted for. If a contractor revises its scope, update the comparison rather than keeping an obsolete headline price.

Check evidence and aftercare without borrowing confidence

Ask to see relevant work and understand whether photographs show that business's own installations. A reference may help you ask about communication and disruption, but it cannot establish your site's suitability. Check claimed memberships or insurance with the relevant organisation or documents where appropriate. A badge, attractive portfolio or confident sales explanation is not a substitute for the written proposal.

Before accepting, request the intended handover information: system-specific care instructions, vehicle-return guidance, defect-reporting contact and any warranty terms. Read who provides cover, what it includes and which exclusions apply; no particular warranty length proves workmanship. Keep a final agreed version of the scope and comparison. This independent guide does not vet contractors, appoint an installer or promise that an enquiry will produce multiple quotations.