Independent quantity surveying and estimating consultants

Shrewsbury, supporting projects across the UK 01743 403120 info@qsconsultants.co.uk

Compare quotes on the same basis. Original quote: Keep the offer intact; Missing scope: Add the work left out; Overlap: Remove costs counted twice; Delivery and terms: Lead time, access and payment. Show each adjustment beside the original price.
QSEC insight

The Lowest Quote May Not Price The Same Job

Two quotes can price different work even when their totals look close. Check the scope and terms first, then compare the cost of each offer on the same basis.

Two quotes can price different work even when their totals look close. Check the scope and terms first, then compare the cost of each offer on the same basis.

Two quote totals can hide two different scopes. What is missing?

Compare quotes on the same basis. Original quote: Keep the offer intact; Missing scope: Add the work left out; Overlap: Remove costs counted twice; Delivery and terms: Lead time, access and payment. Show each adjustment beside the original price.
Show each adjustment beside the original price.

Compare Subcontractor Quotations By Scope

Use one schedule to check quantities, design, plant and access. Add tests, making good and handover duties where needed.

Read exclusions and ask about gaps. Silence on an item is not proof that it has been priced.

Show What You Add Or Deduct

Keep the quoted sum unchanged and show your adjustments on a separate sheet. State the reason, source and how firm the cost is.

If one firm excludes a hoist, add its cost for comparison. Do not change the firm's offer as though it had priced that work.

A lower total may still leave work for you to buy. What changes on a common basis?

Bring every quote onto one basis
  1. Original quote

    Retain the supplier’s scope and terms.

  2. Adjustments

    Price exclusions, access and delivery gaps.

  3. Common basis

    Compare the same finished package.

QSEC · Use these checks with the facts and terms of your job.

Keep each supplier’s original offer and show the comparison adjustments with their source.

Check Delivery And Terms

Check lead times, quote expiry, payment terms and retention. Make sure the trade has the skills and staff to deliver to the programme.

Some terms define scope; others pass work or risk back to you. Settle the key points before order and include agreed replies in the final terms.

General guidance. Check your signed contract and the job facts. Get legal advice where needed.

General guidance This article is not project-specific contractual or legal advice. Review the signed contract and facts before acting.

Need a clearer commercial position on your project?

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