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If you’re comparing suppliers, you’ll hear plenty of confident promises. Neat sites, fast responses, safe working, reliable delivery. What’s harder to judge is whether those promises will hold up across every visit and every season. This is exactly why grounds maintenance KPIs matter. With the right measures in place, you can compare like-for-like, spot risks early, and keep performance transparent once the contract is live.
At Great Oaks, we use clear reporting to show what’s been done, what’s coming next, and where attention is needed, without burying you in noise. It’s a practical, safety-led approach that works for day-to-day grounds maintenance, but also for higher-risk activity like arboriculture and time-sensitive works such as site clearance.
The best grounds maintenance KPIs do three jobs at once:
They also make it easier to compare suppliers on a like-for-like basis. If two providers price similarly, KPIs help you spot who has a realistic plan for mobilisation, inspections, and performance management, rather than relying on assurances.
A useful rule of thumb is to balance:
KPIs fall apart when they are vague, overly complicated, or impossible to evidence. A workable set is:
To make them contract-ready, define these basics upfront:
If you’re procuring services through a formal route, it can help to frame KPIs using recognised performance language from public procurement guidance. For example, the UK Government’s KPI guidance in the Procurement Act “manage” phase is a useful reference point for clear, measurable performance management.
Most contracts benefit from KPIs across seven areas:
Great Oaks are an ARB Approved Contractor, ROSPA members, and hold Constructionline Gold, Once For All accreditation. That matters because it points to structured competence, safety, and assurance processes that translate well into KPI-led reporting.
Tree work is high visibility and high risk. The KPIs should show that the work is controlled, competent, and delivered to the agreed scope.
Measure completion against the agreed schedule and scope, not just “a visit happened”.
Examples
A strong indicator of quality is how often work passes inspection without rework.
Examples
Storm damage and fallen limbs can quickly become a safety issue. Set response time bands that match your risk profile.
Examples
This is about demonstrating that every task is matched to competent staff, with training and refreshers tracked.
Examples
Tree work often involves saws, chippers, stump grinders, and handheld tools. It’s sensible to measure controls like equipment checks and exposure management.
For contracts where vibration exposure is a real consideration, it can be helpful to align the KPI approach with HSE guidance on controlling vibration risks in amenity horticulture.
Examples
Once arboriculture is under control, the next step is consistent visual standards across the wider estate. This is where grounds maintenance KPIs help you see whether the service is delivering outcomes, not just activity
This is the backbone KPI for routine works.
Examples
Instead of one overall score, split inspections by area type so you can pinpoint where standards slip.
Examples
Good reporting is not pages of commentary. It’s clear evidence that work has been completed to standard.
Examples
Reactive work is where confidence is won or lost. You want to see speed, clarity, and follow-through.
Set bands that reflect severity rather than a single flat target.
Examples
If a supplier is slow to quote, projects stall.
Examples
This shows whether reactive work is truly resolving the cause.
Examples
This is also a strong differentiator when assessing grounds maintenance contractors for commercial sites, because it highlights whether the supplier is simply reacting, or actively stabilising standards.
Clearance works often come with time pressure, hazards, and a need for robust evidence, especially on infrastructure and development sites. If site clearance is a priority, set KPIs that measure control from start to finish, including how waste and materials are handled for site clearance across the North West.
Examples
Examples
Examples
Safety-led delivery needs measurable controls. That’s especially true where multiple contractor teams, traffic interfaces, or public access are involved.
Examples
For a simple, consistent approach to management and measurement, some clients like to align contract reporting with FM management standards used in Government estates.
Commercial KPIs are not about squeezing suppliers. They’re about making spend predictable and keeping change controlled.
Examples
They also make it easier to assess how a supplier will manage change and keep costs predictable.
A KPI suite is only as good as the reporting around it. In the first 90 days, the contract should settle into a predictable rhythm.
You should expect to see:
A useful pack usually includes:
Use this when comparing proposals or reviewing a sample report.
Questions worth asking
Red flags
Grounds maintenance KPIs should make your contract simpler to run. You should be able to see, at a glance, whether standards are being met, whether safety controls are active, and whether issues are being closed out properly.
If you want to see what KPI-led reporting can look like in practice, Great Oaks can talk you through a sensible KPI set for your sites and the reporting cadence that supports it. If you’re ready to discuss requirements, contact us.
07884 274693
office@greatoakstreeservices.co.uk
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Climbing, grounds maintenance and utility work.Climbing, grounds and utility work.
Arboricultural Association Approved Contractor.
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Starts Monday 19 October 2026
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Entry requirements: Ground Based Chainsaw Operator and Tree Climbing and Aerial Rescue
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