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Agreeing the job · Guide · For homeowners

What is actually included in the building quote?

The quote says:

Rear extension, complete: £76,000.

You imagine a finished room ready to use. The builder may imagine the structural shell, windows, basic services and plaster finish. Neither interpretation is absurd. They are simply different.

The project title does not tell you whether the price includes:

  • demolition and waste;
  • structural design;
  • utility alterations;
  • kitchen units and appliances;
  • flooring;
  • decorating;
  • external drainage;
  • making good outside the new work;
  • Building Control fees;
  • certificates and handover documents.

If those questions are left unanswered, the price cannot be understood properly either.

Scope is the positive description of the job

The scope should tell you what the contractor proposes to do, where and against which requirements.

For a small job, that might be a clear paragraph and a short list. For an extension, it may connect work items to drawings, specifications, structural information and responsibilities.

The purpose is not to create paperwork for its own sake. It is to let both parties recognise the same project.

What is an inclusion?

An inclusion confirms that a named element is part of the proposed work, price or responsibility.

For example:

Includes removal of the existing kitchen, disposal of waste, protection to the hallway and making good disturbed plaster ready for decoration.

That sentence answers four common questions before they become four additional charges.

What is an exclusion?

An exclusion identifies something related to the project that is outside the proposed work, price or responsibility.

For example:

Decoration and finished floor covering are excluded. The customer will appoint others after the contractor completes plaster making good and subfloor preparation described above.

The exclusion is useful because it identifies the boundary and the interface with later work.

An exclusion should not be a trapdoor

You should be able to see an important exclusion before accepting. It should not contradict the main promise or turn “complete bathroom refurbishment” into a room without products, electrics or finishing unless that boundary was made clear.

The scope and exclusions should tell one story.

Weak:

All unforeseen and associated works excluded.

Useful:

Repair to concealed timber floor structure is excluded because its condition cannot be assessed before strip-out. If deterioration is found, the condition and any proposed work will be recorded before proceeding where practicable.

The useful version tells you what is unknown and what happens next.

What to check before accepting

Read the proposal as though the contractor will not be standing beside you to explain it.

Ask:

  1. 1What finished result does the scope describe?
  2. 2Which rooms, areas and quantities are covered?
  3. 3Who supplies the visible products?
  4. 4Are preparation, protection, waste and making good included?
  5. 5Which drawings and specification revisions apply?
  6. 6Which tests, certificates and handover documents are included?
  7. 7What is excluded?
  8. 8Who is responsible for each excluded interface?
  9. 9What assumptions support the scope?
  10. 10How will later additions or changes be agreed?

Do not compare prices before comparing scope

A £70,000 proposal may be more expensive than a £64,000 proposal.

It may also include:

  • £3,000 of flooring;
  • £1,800 of decorating;
  • waste removal;
  • scaffolding;
  • testing and certification;
  • final cleaning.

Line up the work and boundaries before deciding which proposal is cheaper.

How Assurr supports the process

Assurr keeps the source quotation beside the project structure interpreted from it. The trade reviews the work items, inclusions, exclusions, assumptions and referenced documents before the customer is asked to accept the plan.

That process cannot guarantee that nothing has been missed. It makes gaps, questions and revisions easier to identify while the project is still being agreed.

The practical rule

If an expected result appears in neither the positive scope nor the exclusions, do not rely on “surely”. Ask for it to be clarified.

General guidance, not legal advice
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