What is a service level agreement?
A service level agreement, or SLA, is the part of a service contract that turns "we will look after you" into numbers. It states how fast the provider will respond, how fast it will fix problems and how performance will be measured, and it says what follows if the provider misses the target.
You will see SLAs in many places: internet providers, cloud software, IT support and facility services. In field service, they most often sit inside an annual maintenance contract, where the customer wants to know how quickly a technician will turn up when something breaks.
A good SLA helps both sides. The customer knows what to expect, and the provider knows exactly what it has promised.
A simple example to understand it
Meet Karthik, who runs a company that maintains air conditioning for office towers in Chennai. His AMC includes this SLA for a client:
- Response time: a technician acknowledges a fault within 2 hours of the report.
- On-site time: the technician reaches the site within 4 hours for a fault that stops cooling in a critical area.
- Resolution time: the fault is fixed, or a workaround is in place, within 24 hours.
- Measured by: the time on the service ticket, from when the client reports to when the client confirms it is fixed.
- If missed: a credit on the next invoice, as the contract states.
The numbers are only an example. What matters is that they are specific, measurable and written down.
Key parts of an SLA
- Services covered. What the SLA applies to, and what it does not.
- Response time. How soon the provider acknowledges and starts on an issue.
- Resolution time. How soon the issue is fixed.
- Availability or uptime. For systems that must stay running, the share of time they must be available.
- How it is measured. Where the clock starts and stops, and who records it.
- Reporting. How often the provider shares performance figures.
- Escalation. Who gets involved if the target is at risk of being missed.
- Remedies. Credits or other consequences if the target is missed.
- Exclusions. Events outside the provider's control, such as power cuts or damage by third parties.
Response time vs resolution time
People often mix these up, and the difference matters.
| Response time | Resolution time | |
|---|---|---|
| What it measures | How soon someone acknowledges or arrives | How soon the problem is fixed |
| Clock starts | When the issue is reported | When the issue is reported |
| Clock stops | When the provider responds or reaches site | When the client confirms it is solved |
| Why it matters | Tells you someone is on it | Tells you the work is done |
A provider can meet a fast response time and still take days to fix the fault. A fair SLA sets both.
SLA vs AMC vs warranty vs contract
| SLA | AMC | Warranty | Contract | |
|---|---|---|---|---|
| What it is | The promised service levels | A paid yearly maintenance agreement | A promise to fix defects for a period | The legal agreement as a whole |
| Usually sits | Inside an AMC or contract | On its own, with an SLA inside | With the product | Contains the others |
See also warranty and AMC differences.
Common mistakes with SLAs
- Promising what you cannot deliver. An aggressive response time that your team cannot meet damages trust faster than a modest one.
- Not defining the clock. If nobody agrees when the clock starts, every missed target becomes an argument.
- One level for everything. A broken lift and a dripping tap are not the same. Many contracts set different targets by how serious the fault is.
- No way to measure. If response times are not recorded, the SLA cannot be proven either way.
- Ignoring the warning signs. The best time to act is before a target is missed, not after.
How ZEP360 handles SLAs
In ZEP360, an SLA is a live clock and not a line in a PDF. Complaints are logged in ZEP Customer Support, assigned to an owner and given an SLA timer, so everyone can see how much time is left. SLA escalation fires before a breach so a manager can step in, and the contract itself, including its SLA terms and renewal date, lives in the same system as the visits it governs. Because every ticket and visit is time-stamped, you can show a client exactly how you performed against the agreement. Read more on field service management software.
Related terms
Annual Maintenance Contract · Service Ticket · Preventive Maintenance · Corrective Maintenance · Work Order · Facility Management
Frequently Asked Questions
What does SLA stand for?
SLA stands for service level agreement. It is a written commitment on how well and how quickly a service will be delivered, measured in terms such as response time, resolution time or availability. In other contexts, the same letters can mean other things, so check the setting.
What is a good SLA response time?
It depends on the service and how critical it is. A system that stops a business needs a response in hours. A minor fault can wait a day or more. Set targets your team can meet consistently, and let the seriousness of the fault decide the speed.
What happens if an SLA is breached?
The contract should say. Common remedies are service credits, a discount on the next invoice, or the right to end the contract after repeated breaches. Some SLAs have no financial penalty but require a report and a corrective plan.
What is the difference between an SLA and an AMC?
An AMC is the whole maintenance agreement, covering equipment, visits and fees. An SLA is the part of it that sets measurable service levels, such as how fast the provider responds. Most AMCs include an SLA, but an SLA can also sit in other kinds of contract.
Who is responsible for monitoring an SLA?
Both sides, but the provider usually records the data and reports it, while the customer checks it. Clear records from tickets and visits, with time stamps, make the monitoring simple and fair.
Do small businesses need an SLA?
If you promise a response time to a client, even informally, then you have an SLA. Writing it down, with numbers and a clear way to measure them, protects both you and the customer.
Related Terms
