A clear budget starts with clear scope.
The cost follows from the existing building and the agreed work.

Compare the complete intervention
Request both direct costs and temporary provisions for each phase. Include additional removal and reinstatement when phasing otherwise appears cheaper than one coordinated intervention.
Which trade-off matters?
A complete approach can improve coordination, while phased work spreads the budget. Compare which junctions would need reworking after a delay and which elements can be completed independently.
What belongs in the budget?
- Survey, investigations and design preparation.
- Demolition, foundations, structure and new building elements.
- Electrical, water, heating and ventilation work.
- Windows, floors, walls, kitchens and bathrooms.
- Access, protection, scaffolding and waste removal.
- Clearly identified provisional sums and change arrangements.
A starting price needs a defined scope.
Ask for work, materials, VAT, assumptions and provisional sums to be clearly described. Undecided items should remain visible so an early estimate is not mistaken for a fully developed final budget.
Compare the content
Consider preparation, protection, timing and reinstatement alongside the total price.
Read the quote comparison guide