Guide
Commercial drainage contract or call-out: which costs you less?
Updated
Most commercial sites end up on whichever arrangement they fell into. The choice is worth making deliberately, because the two are priced on completely different logic and only one of them protects you on the worst day.
What you are actually buying in each case
- Call-out
- You pay for attendance and work when something fails. No commitment either way. The rate is set at the moment your site is down and the contractor knows it, and you take your place in the queue behind their contracted customers.
- Planned programme
- Scheduled jetting, gully and interceptor servicing, CCTV at agreed intervals. Predictable spend, fewer surprises, but no attendance promise when something unplanned happens.
- Contract with response times
- A planned programme plus a stated attendance window for reactive work, usually with an agreed reactive rate. You are paying for capacity to be held for you, which is why the response time is the single biggest price lever in the whole arrangement.
The response time is the product
Ask three contractors for a two-hour response and you will get three prices. Ask the same three for next-day attendance and the spread narrows sharply. If your operation can genuinely tolerate a four-hour or next-morning attendance, saying so honestly is the cheapest decision available. If it cannot, get the window written down with the consequence of missing it, because a response time with no remedy attached is marketing rather than a term.
What a comparable contract quote contains
- The reactive response window in hours, and whether it runs from the call or from an acknowledgement.
- The planned schedule: which assets, how often, and what the visit includes. Gullies, interceptors, pump stations and grease management are separate assets and should be listed separately.
- The reactive labour rate for work outside the planned schedule, day rate and out-of-hours rate stated as figures.
- Exclusions: excavation, reinstatement, traffic management, disposal above an agreed volume. Everything not excluded should be included, and a quote that is silent is a quote that will grow.
- Reporting: what you receive after each visit, and whether the CCTV footage and drainage plan belong to you or to the contractor.
- Term and exit: contract length, notice period, and whether prices are fixed for the term.
How to run the comparison
- Write the scope once and send the same scope to everyone. Two quotes for different scopes cannot be compared, and that is usually how the cheap one wins.
- Ask for the contract and the ad-hoc rate together. The gap between them tells you what the response commitment is worth, and whether it is worth it to you.
- Price the reactive work you actually had last year. Take your own call-out history, apply each contractor's contract rates to it, and compare the totals rather than the headline annual figure.
Multi-site operators should be explicit about the number of sites at the enquiry stage. A portfolio changes how the work is routed and mobilised, and a price built for one unit rarely scales cleanly across twenty. Say the number in the form and let contractors quote against the real thing.