Why Do Electricians Give Different Quotes for the Same Project? What to Check Before You Choose

You can ask several electricians to quote for the same electrical project and receive very different prices. One quote might seem affordable, while another may be significantly higher. Naturally, you may wonder whether someone is overcharging you or whether the cheaper option offers better value.

Different quotations do not automatically mean someone is dishonest or that the most expensive electrician will do the best job. Prices can vary because of differences in the work included, materials, quantities, labour, installation requirements and terms.

Understanding these differences can help you compare quotations fairly and make a more informed decision.

1. Differences in the Scope of Work

Two electricians can inspect the same building but interpret the project requirements differently.

One quotation might cover wiring only, while another includes conduit installation, accessories, distribution board work, protective devices, testing and finishing. Although both electricians may be quoting honestly, they may not be pricing the same scope of work.

For larger projects, drawings, a written scope of work or a detailed schedule can help ensure that every electrician prices the same requirements.

What to check

• Which rooms, circuits, fittings and installation tasks are included?

• Does the price cover the complete project or only specific stages?

• Are any existing installations, repairs or finishing works excluded?

Ask for clarification before comparing the final prices.

2. Differences in Materials and Specifications

Materials can make a substantial difference to the total cost of an electrical project.

Quotations may specify different cable sizes, cable types, switches, sockets, conduits, circuit breakers and other accessories. Brands, product quality and compliance with the project's requirements can also affect the price.

For example, two electricians may quote for wiring the same building, but one may specify suitable cables and correctly rated protective devices while the other provides insufficient information about the proposed materials.

A lower price is not necessarily a bargain if it relies on unsuitable materials or compromises essential safety requirements.

What to check

Ask for the proposed cable sizes, material quantities, relevant brands or specifications, and the types and ratings of protective devices. Have a qualified electrician assess any proposed substitutions before accepting them.

3. Differences in the Bill of Quantities (BOQ)

A bill of quantities, commonly called a BOQ, lists the materials, quantities and sometimes the work items required for a project.

One electrician might provide a detailed BOQ showing estimated cable lengths, conduits, sockets, switches, circuit breakers and labour. Another might provide a single overall price with little breakdown.

A detailed BOQ can make it easier to understand how a quotation was calculated and compare it with other proposals. However, the document is only useful if the quantities and specifications are appropriate for the actual project.

Differences in estimated quantities can also explain price variations. One electrician may have allowed for additional circuits, longer cable runs or other work that another has omitted.

What to check

Where appropriate, request an itemised quotation or BOQ. Compare the quantities, specifications and work items—not just the final amount.

4. Differences in Labour and Project Complexity

Electricians do not all calculate labour costs in the same way. The price may reflect the project's complexity, the time required, the number of workers involved, supervision and the electrician's experience.

Installing wiring in an unfinished building may require a different approach from rewiring an occupied property, where access is limited and existing finishes must be protected. Work at height, difficult cable routing and coordination with other trades can also affect labour requirements.

A higher labour charge does not automatically guarantee better workmanship, just as a lower charge does not automatically mean poor work.

What to check

Ask what the labour charge covers, who will carry out and supervise the work, and how the electrician plans to handle the project's specific challenges.

5. Differences in Testing, Finishing and Handover

Not every quotation includes the same level of completion.

Depending on the project, one electrician may include circuit identification, distribution board labelling, appropriate electrical testing, commissioning, finishing and documentation. Another may charge separately for some of these tasks.

These details matter because an installation should not simply look complete; it must also be checked appropriately before being put into service.

What to check

Confirm whether testing, commissioning, labelling, finishing and any required documentation are included. Ask for a clear explanation of additional charges and the expected handover arrangements.

6. Transport, Overheads and Warranty

A quotation may also account for transporting materials, travelling to the site, sourcing equipment, supervising workers and other project-related costs.

Some electricians may offer a workmanship warranty or after-service support, while others may have different arrangements. The duration, coverage and exclusions matter more than the mere presence of the word “warranty”.

These differences can affect the price, but they should be explained clearly.

What to check

Ask whether transport and other project-related costs are included, what workmanship warranty is provided, and what happens if an installation issue arises after completion.

7. Is the Cheapest Electrical Quote the Best Choice?

Choosing the lowest price can be tempting, particularly when you are working within a budget. However, the final amount alone does not tell you whether a quotation represents good value.

A low quotation may be reasonable if the electrician has priced the work efficiently and included everything required. However, it may also leave out important tasks, underestimate quantities or rely on specifications that need clarification.

Likewise, a high quotation is not proof of superior quality. You should be able to understand what justifies the price.

The goal is to find a quotation that offers an appropriate scope of work, suitable materials, safe installation practices and clear terms at a price you can afford.

8. Questions to Ask Before Accepting an Electrical Quote

Before choosing an electrician, ask these questions:

• Does the quotation cover the entire scope of work we discussed?

• Can I see the BOQ, material quantities and relevant specifications?

• Which brands or types of materials and protective devices will be supplied?

• Are labour, transport, testing, commissioning and finishing included?

• What work or materials are excluded from the price?

• How will extra work, changes or unexpected site conditions be priced and approved?

• What workmanship warranty or after-service support is provided, and what does it cover?

• What is the expected project timeline and payment schedule?

You do not need to be an electrical expert to ask these questions. A professional electrician should be willing to explain the quotation in language you can understand.

9. How to Compare Electrical Quotations Fairly

For a useful comparison, try to obtain quotations based on the same scope of work and, where possible, the same drawings, quantities and material specifications.

Compare these key details

Scope of work: Are the same tasks, rooms and circuits included?

Materials: Are the specifications and quality requirements comparable?

Quantities: Have the required materials and work items been accounted for?

Labour: Is the work and supervision clearly described?

Exclusions: Are additional charges and omitted items identified?

Completion: Are testing, finishing and handover requirements clear?

Terms: Are the payment schedule, timeline and warranty explained?

If one quotation is significantly cheaper than the others, ask the electrician to explain the difference before making a decision. You may discover that the scope is smaller, the materials differ or the electrician has simply priced the same work more efficiently.

If important differences remain unexplained, consider obtaining another quotation or asking a qualified professional to review the proposals.

Final Thoughts

Electricians can quote different prices for the same project because they may be allowing for different work, materials, quantities, labour requirements and levels of completion.

The best approach is to compare what each quotation actually provides, clarify anything you do not understand and ensure essential safety requirements are not compromised to reduce costs.

A clear quotation helps both you and your electrician agree on the work, budget, responsibilities and expected outcome before the project begins.

Planning an electrical installation or renovation in Benin City? BrightForge Electrical & Security Ltd can help you discuss your project requirements and understand the work involved before proceeding. Contact us to make an enquiry about your electrical project.