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“Should I wait and see… or book an autism assessment now?”
When parents begin noticing differences in their child’s behaviour, communication, or development, one of the most common questions they ask is:
“Should I wait and see… or book an autism assessment now?”
Key Steps:
1. “All children develop at their own pace.”
2. Speech may ‘catch up’ on its own.
3. Fear of labelling.
4. Advice from friends, family, or school to ‘give it time’.
5. Uncertainty: “What if it’s not autism?”
Why Early Assessment Matters
1. Early support is more effective
The earlier a child’s needs are understood, the sooner targeted support can begin. Research consistently shows improved outcomes in:
- Communication
- Emotional regulation
- Learning
- Social development
- Confidence and well-being
Early identification doesn’t change who your child is — it simply helps them access what they need sooner.
2. School becomes easier to navigate
Schools need clear information to put appropriate support in place. With a diagnosis (or a detailed developmental report), teachers can adjust:
- Expectations
- Routines
- Communication methods
- Sensory accommodations
- Emotional support strategies
This can reduce stress, anxiety, and behavioural challenges for your child.
3. It reduces worry and uncertainty for parents
Many families describe assessment as a relief — even when it confirms autism — because it gives them:
- Understanding
- Language to explain their child’s needs
- A roadmap for support
- Confidence in how to parent effectively
- Living in limbo can feel far more stressful than knowing.
4. It helps siblings and family life
Understanding a child’s differences helps siblings make sense of behaviours like sensory overload, meltdowns, or rigid routines.
Families can adjust patterns and expectations to reduce conflict and increase harmony.
5. An assessment explores all possible causes
If behaviours are due to something else — speech delay, ADHD, anxiety, hearing differences, trauma, or sensory processing needs — those will be identified too.
An autism assessment isn’t just about autism. It’s about understanding your child’s whole developmental profile.
What Are the Risks of Waiting?
1. Challenges can become more intense
Without support, small differences can grow into bigger difficulties, especially as school demands increase.
2. Missed opportunities for developmental support
Early interventions are most effective when initiated at a young age — even simple strategies can make a big difference.
3. Rising frustration for the child
Many autistic children know they are struggling but don’t yet have the communication skills to explain why.
4. Increased anxiety
Unidentified sensory or communication differences can lead to anxiety, meltdowns, or withdrawal.
5. Parents may adapt routines without realising the impact
Families often “work around” challenges:
- avoiding social situations
- limiting activities
- planning life around triggers
- adapting siblings’ routines
- An assessment can help build healthier, more balanced patterns.
Reasons You Might Seek an Assessment Now
Consider booking an assessment if you notice several of the following:
- Delayed or unusual speech and communication
- Differences in social interaction
- Strong need for routine or difficulty with change
- Sensory sensitivities or sensory-seeking behaviour
- Repetitive play
- Intense interests
- Difficulties with emotional regulation
- Challenges with preschool or school expectations
You do not need to see every sign — autism looks different in every child.
What If It Isn’t Autism?
A good assessment doesn’t simply give a yes/no outcome.
It helps answer:
- What is driving my child’s behaviour?
- What supports will help them at school?
- How can we help them thrive at home?
Whether the conclusion is autism, communication delay, sensory processing differences, or something else entirely, the clarity is incredibly valuable.
So… Should You Wait, or Get an Assessment Now?
While waiting can feel like the safest, least stressful option, most families find that seeking an assessment sooner rather than later leads to:
- Less anxiety
- More effective support
- Better outcomes for their child
- A clearer understanding of their child’s needs
- A calmer family environment
- If something feels different, trust your instincts. Parents are usually the first to notice early signs.
Private vs NHS assessments
NHS waiting lists for Autism Assessments vary depending on where you are in the country. It’s not uncommon for the wait to be over 12 months. By booking a private assessment, you can see a Doctor within two weeks and the whole process can be completed in six weeks.
As well as offering private assessments, we also work with NHS trusts and deliver Autism Assessments for the NHS. This means you can rest assured that our assessments will be recognised in all legal settings.
Private Autism Assessments. Book a 15 minute consultation – £49.
FAQs
How long is the wait time for a children's private autism assessment?
For private assessments, we aim to arrange a pre-assessment with a Specialist Doctor within 72 hours. If a full autism assessment is recommended, all appointments are typically completed within 4 weeks. Some delays may occur for example if the educational placement is closed during the holiday period. A comprehensive report, including a diagnosis where appropriate, is usually delivered within 10 days of your final appointment.
If you are referred through your NHS Trust, timelines are similar, although this can vary depending on local demand.
Do I need a GP referral for a private autism assessment?
No, you do not need a GP referral to access our private autism assessment service. Your first step is a consultation with one of our Specialist Doctors, all of whom also work within the NHS. They will discuss your child’s needs, development, and any concerns you or their school may have. If appropriate, you will be offered a short video consultation to review your child’s needs in more detail and decide whether to proceed with a full assessment.
What is included in a private autism assessment?
A private autism assessment at Autism Clinic London includes a detailed developmental history, clinical observations, and a structured diagnostic ADOS assessment. Input from parents, caregivers, and educational placements may also be included to ensure a complete understanding of your child’s needs. All of our reports mirror those you would receive from an NHS assessment.
How much does a private autism assessment cost in the UK?
The cost of a private autism assessment varies depending on the provider and the complexity of the assessment. To compare costs from other providers our costs cover the initial consultation, full diagnostic assessment, and a detailed written report. Mostly, you will be charged over £2,000 with some private clinics charging up to £3,500. We work hard to deliver our assessments at a lower rate than most of the market without compromising on quality. For example, some providers will assess your child without meeting them face-to-face. We believe that for an assessment to be thorough, we have to see your child in person.
Is a private autism diagnosis recognised by the NHS and schools?
Yes, a private autism diagnosis carried out by Autism Clinic London is recognised by schools, the NHS and local authorities. All our assessments are carried out by our multi-disciplinary team who follow NICE guidelines.
Many schools and local authorities accept private reports to support EHCP applications and access to support services.
Do you do assessments for ADHD?
Although our clinicians do carry out ADHD assessments in their NHS practice, we do not currently offer ADHD assessments at Autism Clinic London. Our Autism Assessments do include a comprehensive report and will highlight if there are possible ADHD concerns, which can then be explored in future by your child’s local NHS trust or by another provider.
What age can a child be diagnosed with autism?
Children can be assessed for autism from around 18 months onwards. Early diagnosis can help children access the right support sooner, improving long-term outcomes. We see children aged between 2 and 14 years.
What are the signs that my child may need an autism assessment?
How accurate is a private autism assessment?
Private autism assessments are highly accurate when conducted by experienced clinicians using evidence-based diagnostic tools and NICE guidelines. The quality of the assessment depends on the expertise of the professionals involved and the thoroughness of the process. We are regulated, inspected and rated by CQC which ensures that you can depend on the quality of our assessments.
What happens after an autism diagnosis?
Can adults get a private autism assessment too?
Yes, many private services offer autism assessments for adults as well as children. The process is similar but tailored to adult experiences, including work, relationships, and mental health history. We are a specialist clinic that only assesses children.
Is a private autism assessment faster than the NHS?
Yes, private assessments are significantly faster. While NHS waiting lists can often exceed 12–24 months, a private assessment at Autism Clinic London will typically be completed within four weeks.
Will schools accept a private autism assessment report?
Schools should accept private autism assessment reports, particularly when completed by qualified clinicians who follow NICE guidelines. These reports can be used to support SEN planning and requests for additional support.
Can I use a private diagnosis to apply for an EHCP?
Yes, a private diagnosis can support an Education, Health and Care Plan (EHCP) application. The report provides professional evidence of your child’s needs and recommended support.
What is the difference between screening and a full autism assessment?
A screening is an initial check to see whether autism may be present, while a full assessment is a comprehensive diagnostic process that can lead to a formal diagnosis. If you are concerned that your child has signs of Autism, please contact us and we can arrange an initial assessment in the first instance.
Do you offer online only autism assessments?
Some parts of the assessment process, such as initial consultations and diagnostic interviews with parent or carer, can be carried out online. However, a full diagnostic assessment will require in-person observation. Other providers may offer fully virtual assessments but such assessments do not meet our standards.
Why is an autism diagnosis important?
An autism diagnosis helps individuals and families understand their experiences, access appropriate support, and make informed decisions about education, healthcare, and daily life.
Does an autism diagnosis change anything?
A diagnosis doesn’t change who your child is, but it can open doors to support, reduce uncertainty, and provide clarity for families and professionals. Once you have a confirmed diagnosis, you can also access appropriate and targeted post-diagnostic care, which can help day-to-day life enormously.
Can a diagnosis help at school?
Yes, a diagnosis can help schools better understand your child’s needs and provide appropriate support, accommodations, and learning strategies. It can help inform an EHCP and a more complete approach to your child's educational needs.
