Replace / add radiators: calculator for UK builders
Answer the measurements this calculation needs and JobBosh works out the materials with wastage and pack rounding, the labour hours by role, the plant, the waste and the site needs - then prices them from your own figures, a supplier's quotation or a dated price you record. Free, no account needed to start.
What it works out
- Material: Radiators + TRVs + lockshields + brackets; System inhibitor + flush
- Subcontract: Plumber: 2 radiators (0 new positions) - by quotation
- Waste: Old radiators (scrap metal - segregate)
The questions it asks
| Question | Unit / choices | Required? | Help |
|---|---|---|---|
| Radiators | nr | required | |
| Of which in new positions (new pipework) | nr | optional - default 0 (labelled assumed) | |
| Who does the specialist work? | one of: own team, existing specialist, find subcontractor, mixed | optional - default find_subcontractor (labelled assumed) | Own team: priced at your rates. Existing specialist: you enter their figure. Find subcontractor: JobBosh drafts the enquiry from the job facts. Mixed: your team's part at your rates plus the specialist's figure. JobBosh never decides who may do the work. |
The norms behind it, with their sources
Coverage, productivity and wastage defaults you can edit; each carries where it comes from and is shown as assumed until your own benchmark replaces it.
| Norm | Value | Source | Tier |
|---|---|---|---|
| Swap a radiator like-for-like incl. drain-down share | 1.5 hr | trade practice | assumed |
| New radiator with new pipework | 4 hr | trade practice | assumed |
A worked example
Answers used: Radiators 2 nr; Of which in new positions (new pipework) 0 nr; Who does the specialist work? find subcontractor. These are the recipe's own quantities for those answers - the prices are yours, the supplier's or a quotation's, never a figure typed on a web page.
| Kind | Line | Quantity | How it is worked out |
|---|---|---|---|
| material | Radiators + TRVs + lockshields + brackets | 2 nr 2 x nr - each | 2 |
| material | System inhibitor + flush | 1 item | one per system |
| subcontract | Plumber: 2 radiators (0 new positions) - by quotation | 1 item | needs a quotation or your figure - never invented |
| waste | Old radiators (scrap metal - segregate) | 0.1 m3 | 2 x 0.05 m3 |
Site questions this work raises: Protection and cleanliness, Utilities and welfare.
Specialists or hire it may need, drafted as enquiries from the job's facts: Plumber / heating engineer.
Old radiators are scrap metal: a merchant pays for them, do not pay a skip for them.
Then what
Price the lines from your crew rates and your material prices (each with its source and date), answer the site questions (parking, skip, welfare, power, water, protection), let JobBosh draft the supplier enquiries you approve, and issue a branded quotation your customer accepts on a secure link. Guest work is kept for 14 days; a free account keeps it for good.