Renew gutters and downpipes (PVCu): 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: PVCu gutter 112 mm half-round; Brackets, unions, angles, stop ends, outlets; PVCu downpipe 68 mm + clips, offsets, shoes
- Labour: Renew gutters and downpipes
- Plant: Tower hire (2 storeys)
- Waste: Old gutters, pipes, fascia
The questions it asks
| Question | Unit / choices | Required? | Help |
|---|---|---|---|
| Gutter length | m | required | |
| Downpipes | nr | optional - default 2 (labelled assumed) | |
| Storeys | nr | optional - default 2 (labelled assumed) | |
| Renew fascia / soffit too? | yes / no | optional - default no (labelled assumed) |
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 |
|---|---|---|---|
| Gutter brackets per metre | 1.1 nr/m | 1 m spacing + ends | assumed |
| Take down and renew gutter per metre | 0.3 hr/m | trade practice | assumed |
| Renew a downpipe incl. shoe and offsets | 1.5 hr/pipe | trade practice | assumed |
| Renew fascia and soffit per metre | 0.6 hr/m | trade practice | assumed |
A worked example
Answers used: Gutter length 4 m; Downpipes 2 nr; Storeys 2 nr; Renew fascia / soffit too? no. 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 | PVCu gutter 112 mm half-round | 4.2 m 2 x length - 4 m lengths | 4 m +5 % |
| material | Brackets, unions, angles, stop ends, outlets | 8.4 nr 9 x nr - each | 4 m x 1.1 + 2 x 2 |
| material | PVCu downpipe 68 mm + clips, offsets, shoes | 11.55 m 5 x length - 2.5 m lengths | 2 pipes x 5.5 m |
| labour | Renew gutters and downpipes | 4.2 hr | 4 m x 0.3 h + 2 x 1.5 h |
| plant | Tower hire (2 storeys) | 1 hire-day | hire-days = labour days |
| waste | Old gutters, pipes, fascia | 0.04 m3 | 4 m x 0.01 m3/m |
Labour on this example: about 4.2 hours across the roles; at your rates it becomes money.
Site questions this work raises: Access equipment and temporary works, Parking and traffic, Waste.
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.