BuildCostLab
Tool set

Project Cost Estimating

Estimate patio, driveway, decking, fencing, painting, and plastering budgets with materials, labour, extras, and contingency combined into a more realistic early planning range.

Project costs6 calculatorsRelated guides included

Start with the budget question that matches the job

These project-cost calculators combine material, labour, extras, and contingency so you can build a planning budget before you start chasing trade quotes. Use them as parent budget tools, then drop into the supporting material calculators when you need deeper take-offs.

Patio Cost Calculator

Estimate patio material, labour, extras, and rough total cost from area, finish level, and contingency.

Driveway Cost Calculator

Estimate driveway material, labour, prep, and rough total cost from area, build-up, and contingency.

Decking Cost Calculator

Estimate decking material, labour, framing extras, and rough total cost from deck area and finish level.

Fence Cost Calculator

Estimate fence material, labour, post-setting extras, and rough total cost from run length converted into area-based pricing.

Plastering Cost Calculator

Estimate plastering material, labour, prep, and rough total cost from wall or ceiling area and finish allowance.

Move from tool set to budget

Start with the tool that fits the job, then move into a broader budget or contact path when the estimate needs more context.

Live estimate

Patio Cost Calculator

Run the calculator first so the guide or cluster notes have a real number to work from.

Budget next

Patio Cost Calculator

Use the rough quantity result as the input for a wider materials-plus-labour planning range.

Tool set

Project Cost Estimating

Open the full tool set to check the supporting materials, waste, and ordering logic around this estimate.

Need a tighter number?

Contact BuildCostLab

Use the calculator result as the starting point, then build a cleaner quote brief or send the estimate to the BuildCostLab team for feedback.

Regional cost pressure

Use the UK region selector as a planning weight for labour, access, and extras. It is useful for early budgeting, but it is still not a trade quote.

UK average

Neutral planning baseline

Use this when the final project location is not fixed yet or when you want a national-average planning range.

London

Highest labour and access pressure

Labour, parking, delivery friction, and access constraints usually push the budget furthest above the UK average here.

Midlands

Close to the working baseline

A useful centre-point for planning because many domestic job costs land near the UK average once scope is clear.

North of England

Lower labour pressure than the South

Material costs can stay fairly close to the baseline while labour pressure often lands below London and the South East.

Scotland

Near-average core rates with firmer extras

Base labour can remain close to the average, but access, transport, and weather-related allowances can push extras higher.

Build a cleaner quote brief

Project-cost pages work best when the assumptions are written down before you compare contractors, merchants, or buying routes.

Have these details ready

  • A measured area, length, or footprint for the real job.
  • Use the finish and contingency settings to match the real job, then use the linked material calculators to pressure-test the parts of the budget that matter most.
  • A useful budget usually includes contingency. Labour, site prep, delivery, disposal, and snagging can all move after the first quote or opening-up work begins.
  • Before committing, compare the planning range against at least one real quote and sense-check the linked material layers separately where the job feels most uncertain.

Use the result properly

Keep the calculator total, the selected UK region, the finish level, and any uncertainty notes together. That makes the estimate easier to pressure-test against real quotes.

Open the contact path or review the methodology page before sharing the brief.

What changes these budgets most

Labour rate, prep or groundwork, access, finish level, and contingency usually move the total more than small changes in the visible area alone.

How to use them best

Use the project-cost result as a parent budget, then open the linked material calculators for the layers of the job that still feel uncertain.

Before you commit

Compare the planning range against local quotes, delivery constraints, disposal, and whether supporting materials such as sub-base, paint, screws, or sand have been priced separately.

Comparison and budget pages

Use these pages when the job has moved beyond a raw quantity and you need a clearer choice between buying routes, cost rates, or budget structure.

High-intent budget pages

Use these pages when you mainly want to know what the full job could cost, not just how much material to buy.

Budget-planning guides and next steps

These guides explain cost per m2, finish levels, contingency, and how to move from a planning budget into a better buying plan.