THE SHORT ANSWER
Estimate irrigation repair from the exact damaged components and zone tested. Separate the four visible heads from unknown buried piping or controller faults.
Use this fictional four-head zone repair in Cardiff to plan the estimate. The agreed work is: Repair four identified sprinkler heads in one accessible existing zone. Include system review, selected head allowance, replacement labour, two small fitting allowances, zone operation check and clean-up. Controller replacement, new trenching and buried-pipe diagnosis excluded. The matching garden irrigation repair example and PDF shows the same inputs. These quantities and rates are teaching examples; use your own site measurements, product selections, supplier information and labour figures for a customer job.
1. Mark the repair locations
Identify each head by zone and position, then document the observed problem. Counting four heads is more auditable than saying system tune-up.
2. Verify the selected parts
Nozzle pattern, connection and head model must suit the existing layout. Replace the fictional head allowance with the chosen parts list.
3. Bound hidden repairs
This sample assumes accessible connections at four heads. A buried leak or failed valve requires further diagnosis and a revised scope.
4. Test the affected zone
Include a defined operation check and surface reset at the worked locations. State whether seasonal adjustment or full-system balancing is outside the repair.
Calculate the measured lines
The PDF uses 6 separate items. For example, Sprinkler head allowance is 4 each × £30.40 = £121.60; Head replacement labour is 4 each × £62.40 = £249.60. Check that each unit describes the work being priced: area for a surface, metres for a run, and a count or defined lump sum for a discrete task. A material purchase allowance can differ from the installed quantity when product sizes, cuts or layout require it.
Adding the 6 rounded line amounts gives £708.00. The example PDF uses a 0% tax input and no markup; those settings do not determine how to price or treat an actual job. Do not copy the rates as a local price guide.
Check the scope before sending
- Mark all four heads and the zone.
- Confirm replacement part compatibility.
- Identify buried-work limits.
- Define operation check and surface reset.
Outside the base scope: No controller replacement, valve repair, buried main repair, new trenching or full-system redesign.
Confirm the site address, selected products, access, quantities, customer details and validity date. If opening the work reveals a different condition, record the change and update the relevant line before asking the customer to approve the revised work. Preview every page of the PDF so the written scope, line amounts and total tell the same story.
Common questions
Can four bad heads be priced as one repair?
They can be grouped if the location and product assumptions match, but a count and unit basis make revisions easier.
Does a head replacement fix low pressure?
Not necessarily. Pressure or buried-line problems need separate diagnosis rather than an implied guarantee.
FROM SITE NOTES TO AN ITEMISED PDF
Make your own garden irrigation repair estimate.
Enter the scope in Estimates on iPhone or Android, edit each quantity and rate in pounds, add your business and customer details, and review the PDF before sharing it.
