Summary:
Choosing the right supply teaching agency can have a significant impact on your experience as a supply teacher. A good agency can help you find consistent work, provide ongoing support and connect you with schools that suit your skills and preferences. The wrong agency can leave you frustrated, under-supported and struggling to find suitable placements.
If you’re considering supply teaching or thinking about switching agencies, here’s what to look for before registering.
Many supply teachers find work through recruitment agencies because they provide access to a wider range of opportunities and take much of the administration out of the job search process.
A good agency can help you secure day-to-day, short-term and long-term placements while offering guidance throughout your teaching career.
We’ve found that teachers who build a strong relationship with a trusted agency often enjoy more consistent work and a smoother overall experience than those constantly moving between multiple providers.
Understanding what schools look for when booking supply staff can also help teachers appreciate how agencies match candidates to vacancies. Learn more on our For Schools page.
A supply teaching agency acts as the link between schools and teachers. The agency works with local schools to understand their staffing requirements and then matches suitable candidates to available vacancies.
Beyond finding work, many agencies also assist with safeguarding checks, compliance requirements, career advice and ongoing support.
The best agencies take the time to understand your experience, teaching style and career goals before recommending placements.
If you’re considering supply teaching and would like to learn more about how the process works, visit our For Teachers page for further information.
Before registering with any agency, there are several factors worth considering.
In our experience, communication is often one of the biggest indicators of a quality agency. If an agency is difficult to reach during the registration process, that can sometimes be a sign of future frustrations.

Asking the right questions can help you determine whether an agency is the right fit for your needs.
| Question | Why It Matters |
| Which schools do you work with? | Helps you understand available opportunities |
| How often do teachers receive placements? | Indicates local demand and agency reach |
| Will I have a dedicated consultant? | Provides consistency and support |
| What training opportunities are available? | Supports career development |
| How and when will I be paid? | Avoids misunderstandings later |
| What support is available if issues arise? | Ensures you have assistance when needed |
Don’t be afraid to ask detailed questions. A reputable agency should be happy to explain its processes and answer any concerns.
Not every agency operates to the same standards. Being aware of potential warning signs can help you avoid disappointment.
An agency should work with you to find appropriate opportunities, not pressure you into accepting roles that aren’t a good fit.
Safeguarding should be a priority for every education recruitment agency.
Most agencies will have a stringent onboarding process to make sure they are complying with Safe Recruitment. These check include, but aren’t limited to, enhanced DBS, References, gaps in employment, TRN check and right to work checks
A strong safeguarding process is often a good indication that an agency takes its responsibilities seriously.
If you’re simply looking for the first available placement and have no preference regarding support, communication or career development, you may not spend much time comparing agencies.
However, teachers looking for long-term support, consistent opportunities and a positive working relationship should take the time to research their options carefully before registering.

Not all supply teaching agencies operate in the same way. Some still rely heavily on phone calls and manual booking processes, while others use technology to make arranging placements quicker and more convenient for both schools and teachers.
For schools, this can be particularly valuable when unexpected absences occur outside of normal working hours.
For example, we provide schools with access to an online portal that allows authorised users to request supply staff 24 hours a day, 7 days a week. This means that if a teacher calls in sick the evening before, schools can submit a staffing request immediately rather than waiting until the next morning to start making phone calls.
For teachers, technology can also simplify communication, availability management and placement updates, helping to make the supply process more efficient.
While technology should never replace personal support and communication, we’ve found that having the right systems in place can significantly reduce the stress associated with arranging emergency cover.
For schools, having access to a fast and reliable booking process can make all the difference when unexpected absences occur. You can learn more about this in our guide to finding emergency supply teachers in Cambridgeshire.
If you’re considering supply teaching and would like support finding suitable opportunities, our team would be happy to help.
We work closely with local schools and education settings, helping teachers find placements that match their skills, experience and career goals. Contact us today to learn more about current opportunities and how to get started.
To learn more about the portal or request access, contact the Ready to Teach Cambridge team today.
Look for an agency with strong school relationships, clear communication, fair pay arrangements, experienced consultants and a strong reputation within the education sector.
Many teachers choose to work with one trusted agency that understands their preferences and career goals. However, individual circumstances may vary depending on local demand.
Agencies typically charge schools a fee for finding and placing suitable candidates. Teachers are paid according to the terms agreed with the agency.
Most agencies will guide candidates through the compliance process and advise on DBS requirements before placements begin.
This depends on your qualifications, references and compliance checks. Once registration is complete, many teachers can begin accepting placements relatively quickly.