STANDARDINTEGRITY
INSTITUTE
SII / READING A LUMP-SUM QUOTE
Lump-sum quote?Get the scope in writing.
A lump sum puts a group of works under one price. It can still have a detailed schedule. The problem is not the pricing label—it is paying without knowing what the sum covers and what could cost extra.
Check the quote and its attachments. The words “lump sum” alone do not establish a problem with the contractor.
SII / QUOTE READING NOTE
One price. A defined scope.
- Work included and excluded
- Materials and quantities
- Conditions that change the price
QUOTED ITEM + MATCHING SCHEDULE
One pricing label. Different details to ask for.
Choose a work item close to yours. Compare the short quote entry with the details you can ask to have added to the quote or an attachment.
THE SHORT QUOTE ENTRY
“Site protection and handling: lump sum”
This line does not identify what is protected, what is moved or how long protection remains in place.
DETAILS TO ADD
- Identify protected areas, such as corridors, lifts and rooms, with materials and duration.
- State what is moved, the route, floor level and access restrictions; confirm whether waste removal costs extra.
- Identify who removes protection, cleans and makes good, and which conditions trigger extra charges.
A QUESTION TO SEND
Please add the protection areas, materials, duration and handling scope, plus removal of protection, cleaning, making good and any extra-charge conditions.
These examples illustrate questions to ask, not a complete construction specification. The actual scope and methods need project-specific confirmation.
Six things the lump sum should explain.
You do not need access to every internal cost. You need a written description that connects the work, materials and price. Open a question where your quote leaves a gap.
01Scope: what is in and out?
- WHAT TO LOOK FOR
- Locations, work items, protection, removal, handling, waste disposal, making good and finishing.
- WHY IT MATTERS
- The same item name may omit preparation or finishing. Mark missing details as unresolved, not automatically included.
- A QUESTION TO SEND
- Please list the locations, work items, inclusions and exclusions for this lump sum. Confirm whether protection, removal, handling, waste disposal, making good and finishing are included.
02Quantities: estimated or measured?
- WHAT TO LOOK FOR
- Points, lengths, areas or sets, with estimates, measurement dates and calculation methods.
- WHY IT MATTERS
- If quantities are not final, identify what the quoted price assumes so later increases or reductions can be explained.
- A QUESTION TO SEND
- Please provide the main quantities, units and measurement methods. For estimates, state when quantities will be confirmed and how increases or reductions affect the price.
03Specifications: what will be supplied?
- WHAT TO LOOK FOR
- Brands, models, dimensions, thicknesses, grades and permitted substitute materials.
- WHY IT MATTERS
- “Premium” or “equivalent” does not identify a product. Different specifications also make totals difficult to compare.
- A QUESTION TO SEND
- Please list brands, models, dimensions, thicknesses and grades for the main materials and equipment. For substitutions, state the specification, price difference and advance confirmation process.
04Price: what makes up the amount?
- WHAT TO LOOK FOR
- Main quantities, rates and subtotals, or another stated basis for the total; tax and separate charges.
- WHY IT MATTERS
- A number without a scope is difficult to compare. It also leaves little basis for adjusting the price when work is removed.
- A QUESTION TO SEND
- Please provide the main quantities, rates and subtotals, or another basis that explains the total. Identify tax, delivery and any other separately charged items.
05Changes: how are they agreed?
- WHAT TO LOOK FOR
- What triggers a change, how it is priced, who confirms it, when it is recorded and any schedule effect.
- WHY IT MATTERS
- “To be decided on site” can leave both cost and timing unresolved. A stated process gives you something specific to check.
- A QUESTION TO SEND
- Please list items awaiting site confirmation. Explain how additions, omissions and changes are priced, who confirms them, the advance written confirmation process and any effect on the schedule.
06Completion: what will be checked?
- WHAT TO LOOK FOR
- Deliverables, acceptance items, checking methods, defect corrections and the responsible contact.
- WHY IT MATTERS
- “Complete” needs a checkable description so both sides know what is to be delivered.
- A QUESTION TO SEND
- Please state the deliverables, acceptance items and checking methods for this lump sum. Explain how defects are corrected and identify the contact responsible for handling them.
SII / REQUEST FOR CLARIFICATION
Send the six questions together.
After pasting, add the work item, quote date and version. Ask for a revised quote or written attachment—not just a reply saying “everything is included”.
When the reply arrives
- Match each answer to the original work item. Check that it refers to the same scope and quote version.
- Ask for an amount or pricing method for separate charges. Keep unconfirmed items on an open list.
- Align scope, specifications and quantities with other quotes before comparing the totals.
STANDARD INTEGRITY INSTITUTE
SII-R002 / TRANSPARENCY
SII-R002 looks behind the lump-sum label.
Bundled lump-sum pricing falls under Transparency in SII’s public review criteria. The question is whether the documents explain the work—not whether the pricing label makes a contractor or price unacceptable.
Read SII-R002 and the 30 public criteriaTransparency
Are work items, quantities and specifications clear?
Consistency
Do the quote, schedules and drawings agree?
Reasonableness
Is there a stated basis for charges and adjustments?
Executability
How are changes, completion and acceptance confirmed?
Still unsure what your quote covers? Upload it with its attachments for Free Key Results: Document Maturity, main risk signals and details to clarify.
Upload your quote for Free Key ResultsMore questions about lump-sum quotes
Does a lump sum mean there is a problem with the contractor?
No. It is a pricing method. Check whether the quote or attachments explain scope, quantities, specifications and change conditions. Missing information calls for clarification; it does not establish bad intent or poor workmanship.
Which work needs more than a total price?
Work with many items, variable quantities, significant material differences or easily misunderstood boundaries needs supporting detail. Electrical and plumbing renewal, cabinetry and equipment are examples. Not every small charge needs a separate line, but the main deliverables should be identifiable.
What if site quantities are not yet known?
State the estimated quantities and assumptions, then record the measurement method, confirmation date and pricing basis for increases or reductions. List unconfirmed costs separately. Do not treat them as zero or invent an amount as if it were agreed.
Can I compare two lump-sum quotes?
Start with scope, materials and quantities. Ask both firms for information in the same format where needed. Compare totals once separate charges and their pricing methods are clear; keep unresolved costs apart from confirmed amounts.
Will SII tell me whether the lump sum is too expensive?
SII reviews document information and structure, not market value or contractor quality. LEVEL 1–5 describes Document Maturity only. It is not a contractor ranking, value-for-money score or engineering-safety guarantee.
SII reviews documents, not contractors or individuals. Its website and document reviews are not legal advice, engineering or price appraisals, or construction-quality guarantees. Seek appropriate professional advice for individual legal or engineering questions.