Construction Company Prices in Lagos Nigeria (2026): What to Expect and How to Compare Quotes

Understanding How Construction Companies Price Their Work in Lagos

One of the most confusing aspects of building in Nigeria for first-time builders is understanding how construction companies arrive at their prices — and how to know if a quote is fair. Unlike buying a product with a fixed price tag, construction pricing involves dozens of variables, and the difference between the cheapest and most expensive contractor for the same project can easily be 40–60%.

This guide demystifies contractor pricing in Lagos and across Nigeria, explains the different pricing models used, identifies red flags in quotes, and gives you the tools to evaluate whether you are getting fair value.

The Three Main Pricing Models Used by Nigerian Contractors

1. Lump Sum (Fixed Price) Contract

The contractor agrees to complete the entire project for a fixed total amount. Any cost overruns (due to material price increases, underestimated quantities, or unforeseen site conditions) are absorbed by the contractor — unless they raise a formal variation claim.

Pros: Budget certainty; contractor manages cost risk.
Cons: Contractors build a contingency into lump sum prices (typically 15–25%). Any design changes are priced as expensive variations.

2. Bill of Quantities (Measured Contract)

A quantity surveyor prepares a detailed BoQ itemising every material and labour element. Contractors price each item individually. The contract sum is the total of all priced items. This is the most transparent and recommended pricing method for residential projects above ₦20M.

Pros: Full price transparency; easy to identify inflated items; change orders are priced on the same unit rates.
Cons: Requires upfront investment in QS preparation (₦150K–₦400K); takes longer to prepare.

3. Cost-Plus (Day Rate / Prime Cost)

The contractor charges actual material and labour costs plus an agreed percentage (typically 15–25%) for overhead and profit. Used for projects with poorly defined scope or highly complex/unusual designs.

Pros: Flexible for complex or changing scope; transparent cost base.
Cons: No budget certainty; contractor has no incentive to manage costs efficiently; requires very close client monitoring.

Current Contractor Price Ranges in Lagos (2025)

For residential construction in Lagos, contractor all-inclusive turnkey prices fall within these ranges per square metre of built-up area:

Note: These prices include materials, labour, and contractor overhead and profit. They exclude land, professional fees (architect, engineer, QS), government approval costs, and external works (fence, gate, driveway).

What Drives Price Differences Between Contractors?

When two contractors quote ₦25M and ₦38M for the same project, the difference is rarely purely profit. The main explanations are:

• Specification assumptions: One contractor priced local tiles; the other priced imported porcelain. Always clarify the exact specification attached to each quote.
• Material quality tier: Two contractors using "long span aluminium" may be pricing 0.40mm and 0.55mm gauge respectively — a significant quality difference at different prices.
• Labour quality: A contractor with experienced, full-time artisans charges more per day but produces better quality and fewer rework incidents.
• Overhead and risk margin: A well-established registered contractor with an office, insurance, and bonded workers carries higher overhead than a sole trader working from his phone.
• Project management: A contractor who provides a full-time site manager charges for that service — and the quality difference is usually worth it.

How to Get Reliable Contractor Quotes in Lagos

1. Prepare a detailed scope of work. Send every contractor identical information: your drawings, the specification (finishes schedule), and a list of what is included vs excluded.
2. Request itemised pricing. Never accept a lump sum with no breakdown. Ask for pricing by trade at minimum: foundation and structure, roofing, electrical, plumbing, finishes.
3. Get at least three quotes. With three quotes, you can identify the outliers — both the suspicious lowball and the overpriced incumbent.
4. Verify references. Ask each contractor for contact details of two clients from completed residential projects of similar scale. Call them. Visit the completed buildings if possible.
5. Check registration. Verify the contractor is registered with the Council for the Regulation of Engineering in Nigeria (COREN) or the Nigerian Institute of Building (NIOB).

Warning Signs in a Contractor Quote

• Requesting more than 30% upfront — a reputable contractor does not need large advance payments to start work
• No written contract offered — every professional engagement should have a signed agreement
• Vague material specifications — "good quality tiles" is not a specification; "Eleganza 60×60cm locally made ceramic, ₦6,500/carton" is
• Unusually low price without explanation — a quote 30–40% below all others is usually based on different (lower) specifications or planning to substitute cheaper materials during construction
• No mention of supervision costs — who is managing the site daily? This should be explicitly stated and costed

How to Use an Independent Estimate to Evaluate Contractor Quotes

The most powerful tool a Nigerian property developer has when evaluating contractor quotes is an independent cost estimate — ideally a full Bill of Quantities from a certified quantity surveyor, or a well-calibrated digital building cost estimator.

When you have an independent estimate in hand, you can compare each line item from the contractor's quote against the market benchmark. Items significantly above the estimate warrant a negotiation discussion or a request for justification. Items below the estimate may signal a quality shortcut. This process consistently saves builders ₦3M–₦10M on residential projects — far more than the cost of the estimate itself.