What Should a Construction Quote Include?

A construction quote should give you a clear picture of what you are paying for, what is included and what is not. If a quote is vague or leaves important details out, it becomes difficult to compare with other quotes and easy for costs to escalate once work begins.

This guide explains what a thorough construction quote should contain so you can compare quotes properly and avoid surprises.

The basics every quote should include

A clear description of the work. The quote should describe exactly what will be done, room by room or stage by stage. "Kitchen renovation" is not enough. "Strip out existing kitchen, install new units, worktops, tiling, flooring, electrics and plumbing to the layout shown in the attached plan" is what you need.

Materials specification. The quote should state what materials will be used, including brand names or quality levels where relevant. "Kitchen units" could mean £2,000 flat-pack or £15,000 bespoke cabinetry. The quote should make this clear.

Labour costs. Some quotes show labour as a separate line, others include it in the total. Either approach is fine as long as it is clear. What matters is that you understand what you are paying for people versus what you are paying for materials.

VAT. Always check whether the quoted price includes VAT at 20 percent. A £50,000 quote excluding VAT becomes £60,000 including it. Some smaller builders are not VAT registered, which means their headline price is the total. Ask explicitly.

Timeline. The quote should include an estimated start date and completion date, or at minimum a project duration.

Payment schedule. A clear breakdown of when payments are due and what milestone each payment is tied to. Avoid quotes that simply state "50% upfront, 50% on completion" with no detail on what triggers the second payment.

What is often missing

Exclusions. A good quote explicitly states what is not included. Common exclusions that catch homeowners out include: planning application fees, structural engineering fees, building regulations fees, party wall agreements, kitchen or bathroom units and appliances, decoration, landscaping, and furniture.

Contingency. Some quotes include a contingency sum (typically 5 to 10 percent) to cover unexpected discoveries during the build. Others do not. If the quote does not mention contingency, ask how unexpected costs will be handled.

Waste removal. Check whether skip hire and waste disposal are included. If not, this can add £500 to £2,000 to the project cost depending on scope.

Scaffolding. For extensions and external work, scaffolding hire can cost £800 to £2,500. Check whether it is included.

Professional fees. Architectural drawings, structural engineering calculations and building control applications are sometimes included in a builder's quote and sometimes not. Always ask.

How to compare quotes

When you have three quotes, compare them line by line. The cheapest quote is not always the best value. A low quote may exclude items that the higher quotes include, which means the actual cost could end up similar or higher once the missing elements are added.

Create a simple spreadsheet with every element listed and note which quotes include which items. This makes the comparison fair and transparent.

If one quote is significantly cheaper than the other two, ask the builder to explain what they have included differently. If they cannot, that is a warning sign.

Red flags in a quote

No breakdown of costs. A single lump sum with no detail makes it impossible to understand what you are paying for.

No written scope. If the work is described verbally but not written down, there is no agreement to fall back on if something is missed.

Pressure to sign quickly. A reputable builder will give you time to review the quote, compare options and ask questions.

Large upfront payment. A deposit of 10 to 15 percent is normal. Anything above 25 percent before work begins should be questioned.

Our approach to quoting

At Renex, every quotation includes a full scope of work, materials specification, VAT, timeline, payment schedule and a clear list of exclusions. We believe a good quote removes uncertainty, not creates it.