AI for comparing renovation supplier quotes: items, units and exclusions

Compare scope before totals

AI can help compare renovation supplier quotes when several documents describe the same job differently. One contractor includes removal and disposal, another covers supply only, and a third provides a single total. The useful task is not asking a model to choose the cheapest supplier. It is preparing a table that shows which items are comparable and which still need clarification. This article proposes a working procedure, not a comparison feature currently available in Reformia or a guarantee of savings. Always retain the original PDF and the exact version the client has accepted.

Start with a small package, such as kitchen cabinetry and services. Give each quotation a reference, date and supplier. Extract its original description, quantity, unit, unit price, subtotal, stated tax treatment and exclusions. An empty field must remain unknown: it is neither zero nor permission to estimate the amount. Microsoft's documentation distinguishes extraction confidence from the need for review; a high score does not establish that two items have equivalent technical scope. The purchasing lead must check that equivalence with the professional who understands the project.

A table that keeps hours and metres separate

Request separate columns for supply, fitting, travel and supporting work where the documents actually distinguish them. Do not combine an hourly rate with a price per square metre to create a supposed average. Do not convert tile boxes into area without the product's stated coverage. If one offer says complete installation while another lists individual operations, label the proposed match as unconfirmed. Recalculate quantities and totals in a spreadsheet or other deterministic calculation tool. A language model's prose should not become the financial calculator for the project record.

For an Alicante kitchen retaining some existing services, the comparison needs to identify which connections stay and which require checking. Use the kitchen renovation guide to understand the overall package and separate kitchen plumbing replacement. These guides explain services; they do not replace a survey or automatically set a supplier's price. Where older wiring is involved, raise a question for the electrician. Do not let the AI decide it is included merely because two descriptions contain similar words.

Turn differences into useful questions

The output should include questions answerable with yes, no or a specific description: is removal included, which hardware reference is supplied, and who makes good the wall junction? Put the relevant document page beside each question. Do not disclose one supplier's confidential prices to another when explaining an uncertainty. AI can draft an email from the exclusions, but the responsible person must check its recipient, tone and attachments before sending. An informal reply does not itself amend the accepted quotation. Keep clarified scope and the next formal revision together.

Test the workflow against completed quotations and compare its output with the manual review. Count omitted items, incorrect matches and correction time, not just generation speed. The article on renovation contingencies and extras helps distinguish an unresolved scope question from a later change. To extend the approach to other tasks, revisit the AI roadmap for construction businesses. If the table needs more correction than a manual comparison, narrow the package or change the template before expanding the pilot.

An example to test the workflow

Example instruction: compare only attached offers A and B, retain each item's original wording and show differences without choosing a winner. Do not complete missing prices. During review, deliberately include one offer covering removal and another excluding it. The expected result is not merely a difference in totals but a warning that scope is not equivalent. Keep a copy of this test and repeat it when changing the template. If the system groups those items as identical again, the pilot still needs correction before it is used with new quotations.

Source and pilot boundaries

Reference consulted: Microsoft Learn. The workflow is Reformia's editorial proposal, not an announced product feature or a promise of results.

Before using real data, review access, retention and the AI provider's terms with your company's responsible person. Start with synthetic or anonymised information. The pilot must allow drafts to be corrected or rejected, original documents to be retrieved and work to continue manually if the service fails. Do not connect payments, purchases or external communications without specific human approval.

Frequently asked questions