How to Write a Quotation for a Construction Job in Nigeria

Quick answer: A construction quotation in Nigeria should include your business details, the client's details, a clear scope of work, an itemised breakdown of materials and labour costs, the total price, a validity period (typically 14–30 days), payment terms, and your signature. Unlike an invoice, a quotation is an offer — not yet a demand for payment.

What a Quotation Actually Is

A quotation (or "quote") is a formal price estimate you provide to a potential client before any work begins or money changes hands. It is not a bill — it is an offer that the client can accept, reject, or negotiate. Once accepted, the quotation typically becomes the basis for the contract and the invoices you will issue as work progresses. A weak or vague quotation is one of the most common reasons contractors lose jobs to competitors, even when their actual pricing is competitive — clients trust what looks organised and specific.

What Every Construction Quotation Must Include

Step-by-Step: Writing a Construction Quotation

1. Visit the site before quoting where possible. Ground conditions, access constraints, and existing structures all affect real cost — a quote written without a site visit is often wrong in one direction or the other.
2. Define the scope precisely. List exactly what is included — for example, "supply and installation of roofing sheets, including fascia boards; excludes ceiling and electrical work." Ambiguity here is the single biggest source of disputes after work begins.
3. Break down materials with current prices. List each major material (cement, blocks, iron rods, roofing sheets, etc.) with quantity and unit price, sourced from current market rates rather than outdated figures — material costs move quickly in Nigeria.
4. Price labour separately and realistically. Include mason, carpenter, electrician, plumber, and general labour rates appropriate to your location — labour costs in Lagos, for instance, typically run 15–25% higher than in many other Nigerian cities.
5. Add a contingency where appropriate. Many experienced contractors build in a 5–10% contingency for unforeseen site conditions, rather than absorbing that risk silently or under-quoting and losing money mid-project.
6. State your validity period. Given how quickly cement, steel, and fuel prices move, a quotation open-ended with no expiry exposes you to being held to an old price months later. State clearly: "This quotation is valid for 21 days from the date above."
7. Include payment terms. State your required deposit (commonly 30–50% for construction work) and how the balance will be staged against project milestones.
8. Sign and date it. A signed quotation, even informally, carries more weight than an unsigned message and signals professionalism to the client.

Sample Quotation Structure

QUOTATION #: QT-2026-0087
DATE: [Date]   VALID UNTIL: [Date + 21 days]

CLIENT: [Name]   PROJECT: [Site Address]

SCOPE OF WORK: [Brief description of what is included]

Description  |  Qty  |  Unit Price  |  Total
------------------------------------------------
Materials: [Item]  |  X  |  ₦XX,XXX  |  ₦XX,XXX
Labour: [Trade, duration]  |  —  |  —  |  ₦XX,XXX

TOTAL: ₦XXX,XXX

Payment Terms: 40% deposit, 40% at midpoint, 20% on completion
Estimated Duration: [X weeks]

Common Quotation Mistakes That Cost Contractors Jobs

• No scope definition — leads to "scope creep" disputes where the client assumes items were included that were never priced
• Underpricing to win the job — often leads to disputes or abandoned projects when the contractor runs out of budget mid-way
• No validity period — a client can return months later expecting the old (now outdated) price
• Handwritten or inconsistent quotes — corporate and diaspora clients in particular expect a clean, typed, professional document before approving any spend
• No follow-up after sending — quotations sent and forgotten rarely convert; a polite follow-up within a few days significantly improves acceptance rates

From Quotation to Contract

Once a client accepts your quotation, it becomes the reference point for the entire project — invoices should reference it, and any additional work should be documented as a variation against it rather than silently absorbed. See our guide on how to invoice a client for construction work in Nigeria for how staged invoicing flows from an accepted quotation.

Quoting for Different Types of Construction Work

The structure above applies broadly, but the emphasis shifts depending on the type of job. A new-build residential quotation typically needs the most detail, since it spans multiple trades and stages from foundation to finishing — expect to break it down by structural stage as described earlier. A renovation or extension quotation needs extra attention to existing-condition assumptions, since hidden issues (weak existing foundations, outdated wiring) are common and should be flagged as a contingency or an explicit exclusion, not silently absorbed into your price. A small repair or single-trade job (e.g. re-roofing, fence repair) can use a shorter, simpler quotation format, but should still include the same core fields — scope, pricing breakdown, validity, and payment terms — just condensed.

Using a Quotation to Compete Against Other Contractors

Nigerian clients, particularly for larger residential or commercial projects, frequently request quotations from two or three contractors before deciding. A well-structured, itemised quotation is a genuine competitive advantage in this process — it signals professionalism and makes it easy for the client to compare your pricing against competitors line by line, rather than just comparing two unexplained lump-sum totals. If you know you are one of several contractors being asked to quote, invest extra care into the clarity and presentation of your document; it often matters as much as the price itself in winning the job.

Frequently Asked Questions

Should I charge for site visits before quoting?
Many contractors offer the first site visit free to win the job, then charge for detailed re-assessments if the scope changes significantly. This varies by market and project size — larger commercial quotes more commonly involve a paid feasibility visit.

How detailed should a quotation be for a small job?
Even a small job benefits from a basic written quotation with a scope, price, and validity period — it protects both you and the client, and takes only a few minutes longer than a verbal estimate.

What if the client wants to negotiate the price?
Negotiate on scope, not just price — for example, offering a lower-cost material alternative rather than simply discounting your labour margin, which erodes profitability on future jobs too.

How do I quote for a job where the full scope isn't clear yet?
State clearly that the quotation is a preliminary estimate subject to confirmation on further site investigation, and outline what specifically could change the price — this manages expectations honestly rather than committing to a number you may not be able to hold.

Should I include a breakdown by structural stage even for a small job?
For very small jobs a single combined total is usually fine, but anything spanning more than a couple of weeks benefits from at least a rough stage breakdown, since it also gives you a natural structure for staged invoicing later.