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 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?
- Original quote
Retain the supplier’s scope and terms.
- Adjustments
Price exclusions, access and delivery gaps.
- Common basis
Compare the same finished package.
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.