We rate the document
SII assesses whether the quotation is clear, complete, and traceable. It does not score the contractor, designer, or supplier.

SII RATING SYSTEM / LEVEL 1–5
SII Level 1–5 shows whether a renovation or construction quotation has enough structure to be read, compared, and reviewed before you sign or pay.
WHAT THE LEVEL MEANS
SII Level 1–5 is not a contractor score. It describes how a quotation progresses from insufficient information to a mature basis for review.
SII assesses whether the quotation is clear, complete, and traceable. It does not score the contractor, designer, or supplier.
A higher Level means the document provides a stronger basis for reading, comparison, discussion, and further review.
Level 5 does not guarantee workmanship, performance, legal outcomes, or the absence of future disputes.
FIVE LEVELS OF DOCUMENT MATURITY
Select Level 1–5 to see what each stage means, the signals commonly found there, and what should happen next.
REVIEWABLE
Most major items and prices have a usable structure. Initial review and comparison are possible, but some specifications, responsibility boundaries, or performance terms still require clarification before commitment.
COMMON SIGNALS
Major items, quantities, and unit prices are generally available, revealing the budget structure.
A smaller number of important specifications or responsibility terms remain unclear.
The document can support comparison, but key points still need a second check before signing.
LEVEL 4 VS. LEVEL 5
Level 4 means the document structure is already strong. Level 5 goes further by creating a more mature basis for final cross-checking and review.
Major items, pricing, materials, and performance terms are well structured and can support deeper comparison, although a small number of exceptions or responsibility details may still need work.
Beyond completeness, key prices, scope, materials, and responsibilities are more consistent and traceable, making the document better suited to final verification and decision-making.
FOUR REVIEW DIMENSIONS
SII does not judge a quotation by total price alone. We review the transparency, consistency, reasonableness, and executability of the information in the document.
Are prices, materials, brands, specifications, and scope clearly disclosed rather than reduced to vague labels or lump sums?
Do units, quantities, amounts, dates, and scope remain internally consistent throughout the same document?
Do payment, fees, and pricing structures have a clear basis that can be checked against the actual content of the quotation?
Are schedule, acceptance, warranty, variations, and responsibility terms specific enough to support actual performance and communication?
UPGRADE PATH
Moving from a lower Level to a higher one means systematically filling the ambiguity, omissions, and unconfirmed details in the document.
Document the work item, quantity, unit, unit price, and total so the quotation has a basic readable structure.
Turn lump sums, site-dependent wording, and equivalent-product notes into identifiable scope, quantities, methods, or pricing rules.
Add brands, models, dimensions, thickness, grades, installation methods, and substitution rules.
Put payment, schedule, acceptance, warranty, variations, changes, and responsibility procedures into writing.
Align price, specifications, scope, and responsibility across quotations before making the final selection.
WHEN TO REVIEW
A quotation can be reviewed at different stages. The earlier you identify what is missing, the more time you have to clarify it before payment or signing.
Identify what the document is missing before jumping into negotiation simply because a total price is visible.
Make sure the quotations use comparable material, scope, and responsibility assumptions before comparing price.
Confirm that payment, acceptance, warranty, variations, and responsibility are clearly documented before commitment.
RATING SYSTEM FAQ
These answers also clarify what the SII Rating System does—and what it does not do.
No. SII Level 1–5 rates the information maturity of the quotation itself—whether work items, pricing, materials, specifications, scope, and performance terms are documented well enough to be read, compared, and reviewed. It is not a contractor credit score or a judgment of capability or character.
No. Level 5 means the document provides a mature basis for review. It does not guarantee workmanship, performance, legal responsibility, or the absence of future disputes. Before signing, the quotation, contract, drawings, and documented commitments should still be cross-checked.
Not necessarily. Level 1 mainly means the current document does not provide enough information for effective understanding or comparison. Early quotations are often brief. The priority is to identify the gaps and request clarification rather than infer bad intent.
Yes. Document maturity can improve when missing quantities, units, unit prices, material specifications, scope, payment, acceptance, warranty, or variation terms are added. The Level reflects the document version being reviewed at that time.
SII reviews transparency, consistency, reasonableness, and executability, with reference to the public SII-R001–SII-R030 criteria. Level 1–5 is an overall interpretation of document maturity, not a simple count of individual issues.
Level 4 means the main information structure is substantially complete. Level 5 goes further: key pricing, specifications, scope, and responsibilities form a more mature and traceable basis for final review. In simple terms, Level 4 means most of what should be there is present; Level 5 means the document is better prepared for final verification.
No. The Level helps you judge which document is easier to understand and compare, but the final decision must still consider scope, requirements, price, contract terms, and the contractor itself. If two documents have very different maturity, align the comparison basis first.
You can submit the first quotation, documents you are actively comparing, or a quotation you are about to sign or pay against. You do not need to wait for a perfect document. Finding information gaps earlier usually gives you more time to clarify them before commitment.

START WITH YOUR DOCUMENT
Upload the renovation or construction quotation you have now. Start with its document maturity and key risk signals, then decide what needs to be clarified before you sign or pay.