# How to compare three construction quotations for one project Create a common comparison sheet that exposes scope differences, unpriced work, alternatives and payment assumptions before comparing totals. Bunyady · 2026-10-15 Three quotations are useful only if you understand what each contractor has priced. A neat table of totals can conceal different drawings, excluded packages and provisional selections. Begin by creating one comparison basis, then resolve differences through written clarifications. The three-offer example in this guide is a hypothetical evaluation format, not a claim that a particular number of bids guarantees a good decision. Use professional technical and commercial review for the actual project. ## Confirm that every bidder received the same information List the drawings, specifications, quantity schedules and clarifications issued for pricing, with their revisions. Ask each bidder to confirm the basis of its offer. If one used an older plan, obtain a revised quotation before treating the figures as comparable. Keep information sent during the enquiry available to all relevant bidders through the agreed process. A fair comparison begins with consistent inputs; otherwise time spent analysing small price differences may be wasted because the offers describe different homes. ## Build rows around scope rather than bidder format Use a common set of work packages even if the contractors organise their quotations differently. Map each offered item to that structure with help from the reviewer, preserving the original references. Ask for clarification where a package spans several rows or a combined total cannot be separated reliably. Do not invent an allocation merely to fill the table. Mark it as combined or unresolved. The comparison should reveal what is known and what needs explanation, not create artificial precision through spreadsheet formatting. ## Expose exclusions and owner-supplied packages For each offer, list work excluded or assigned to the owner. Ask whether it is unnecessary for the project or simply outside that bidder’s scope. Obtain a price for required remaining work or show it clearly as unresolved. Check that an allowance is not added twice when another line already includes it. The owner’s completion budget must account for the same intended home under all three offers, including separately appointed services or purchases that the construction total does not cover. ## Compare specifications and alternatives separately Ask the technical team to identify material differences in proposed products or systems. Keep the requested base specification and any alternative price in distinct columns or notes. Do not count a lower-priced substitute as equivalent until the relevant review has been completed. Record the owner’s appearance preference separately from technical acceptance. If an offer uses broad quality labels, request identifiable references or a clear specification before deciding what its price represents. A product name alone may not explain the complete installed package. ## Read commercial terms alongside the price Compare quotation validity, proposed payment stages, programme assumptions and the treatment of changes. Ask the contract adviser to review legal wording rather than assigning an unsupported monetary value to every contractual difference. A convenient payment sequence does not repair an unclear scope, and a low total does not explain an unrealistic start assumption. Keep these terms visible beside the price comparison so the family can judge the complete proposal. Record any revised terms in the bidder’s updated offer before final selection. ## Finish with a reconciled decision record Prepare a summary of comparable scope, confirmed clarifications, remaining gaps and the reasons for preferring an offer. Distinguish bidder prices from reviewer estimates used only for analysis. Ask the selected contractor for a coherent revised offer reflecting the agreed scope, then review its contract and attachments against the comparison. Use official legal sources for professional contract review. The result should be an explainable decision, not simply the lowest cell highlighted in colour while unresolved differences remain hidden elsewhere in the workbook. ## Your practical checklist 1. Confirm one shared drawing and specification basis. 2. Resolve exclusions, alternatives and combined prices. 3. Reconcile the selected offer with the final contract package. ## Frequently asked questions ### Should I average three totals to estimate the budget? An average does not resolve different scopes. Clarify quantities, specifications and exclusions first; otherwise the resulting number may describe none of the offered projects. ### Can I fill a missing bidder price with my own estimate? Keep any analysis estimate clearly separate and obtain a confirmed offer for the actual commitment. Never present your estimate as a price accepted by the bidder. ### What should the chosen bidder provide next? A revised, internally consistent offer incorporating accepted clarifications and options, ready to be checked against the proposed contract and exact attachment revisions. ## Sources and further reading - [Bureau of Experts — Civil Transactions Law](https://laws.boe.gov.sa/BoeLaws/Laws/LawDetails/655fdb42-8c96-422b-b8c4-b04f0095c94c/1): Official legal reference. Case-specific interpretation requires a qualified adviser. 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