Autism assessments for children and teenagers

Navigating the early signs of autism can feel overwhelming. Xyla provides clear answers, early diagnosis and tailored support plans for children and teens, without the long wait.

Considering an autism assessment for your child?

A private autism assessment can provide clarity sooner, helping your child access the right support when it matters most. A formal diagnosis can also help you and your child with:

Early intervention

Identifying autism early allows for timely support, helping young people manage challenges before they affect learning, confidence and wellbeing.

Better understanding

Parents, teachers and caregivers gain valuable insights into how the child experiences the world, leading to more effective and compassionate support.

Access to school support

A diagnosis can open the door to tailored educational support, such as EHCPs, extra time in exams and classroom adjustments.

Building confidence for the future

With the right strategies in place, children are better equipped to thrive both academically and socially.

September offer: £200 off assessments

Clarity and support shouldn’t be out of reach. This September, we’re offering £200 off our ADHD, autism and combined assessments. Start with a free, no-obligation pre-assessment call. If you choose to continue, you’ll receive a personalised code to use at checkout.

How much does a child or teen autism assessment cost?

Our autism assessments for children and teens costs £2000. Get faster access to expert-led autism assessments and support for your child, with no hidden costs. We’re transparent about pricing and offer flexible payment options, so getting expert support is within reach. See what’s included and how we’ll support you every step of the way.

Most popular

Combined ADHD & autism assessment

£2̶4̶5̶0̶ | £2250
  • Tailored for ages 7-17
  • Free pre-assessment call
  • Dual online assessment for ADHD and autism
  • Detailed diagnostic report covering both conditions
  • Personalised guidance + post-diagnostic advice for individuals and families

Autism assessment

£̶̶2̶0̶0̶0̶ | £1800
  • Tailored for ages 7-17
  • Free pre-assessment call
  • Online autism assessment with expert clinician
  • Detailed diagnostic report for school, healthcare and support at home
  • Recommendations to support your child and family

Every child and teenager is different, and so is our approach. We take the time to understand your child’s unique needs, offering personalised autism assessments and tailored support to help them thrive at home, in school and beyond.

1

Book your free consultation

Free 15-minute phone call to help you take the first step. We’ll guide you through the process and recommend the most suitable assessment for you or your child, whether it’s for ADHD, autism, or both

2

Personalised assessment

We use NHS-recognised diagnostic tools to provide evidence-based and accurate assessments, all delivered online so you can access expert care from the comfort of your home.

3

Clear diagnosis and next steps

Within 14 days of your assessment, you’ll receive a clear diagnosis along with our detailed report and personalised recommendations to help guide you through the next steps.

4

Support beyond diagnosis

Our holistic support includes personalised care plans, wellbeing guidance, and practical tools to help you and your child thrive, all shaped around what matters most to you.

What happens after an autism diagnosis?

Receiving an autism diagnosis for your child is just the beginning of your journey – and you won’t be facing it alone. After the assessment, we’ll provide tailored recommendations and ongoing support and guidance to help your child thrive at home, in school, and beyond.

Therapies and interventions

We tailor our recommendations to your child or teenager’s unique needs. This may include therapies such as behavioural support, speech and language therapy, occupational therapy, or sensory integration approaches – each designed to help your child develop confidence, communication and everyday life skills.

School support and accommodations


You’ll be guided through how to access educational support, including help with applying for an Education, Health and Care Plan (EHCP) or developing an Individualised Education Plan (IEP). These tools ensure your child’s learning environment is adapted to suit their strengths and challenges.

Parent and family guidance


 With you every step of the way, our clinicians support you with practical advice and resources to help you support your child or teenager at home and in social settings. This may include behaviour strategies, routines, communication techniques and ways to build your child’s confidence and independence


Long-term planning and ongoing support


As your child or teenager grows, their needs can evolve. We’re here to guide you through each stage, from starting secondary school to navigating teenage years and planning for adulthood. Our goal is to ensure consistent support and care, so you never feel like you’re facing it alone.

Timely support

No waiting lists. Start your assessment within 2 weeks.

Easy to access

No GP referral needed. Exceptional care, made accessible to you.

Trusted NHS partner

Over 25 years partnering with the NHS to deliver care you can trust.

Tailored to you

Personalised assessments and ongoing support that fit your needs.

Signs of autism in children and teenagers  

Autism Spectrum Disorder (ASD) presents differently in every individual. Some possible signs include: 

Social and communication challenges 

  • Difficulty understanding social cues, eye contact, and conversations
  • Preferring to play alone or struggling with friendships
  • Delayed or repetitive speech patterns

Repetitive behaviours and sensory sensitivities

  • Repetitive movements (e.g. hand-flapping, rocking)
  • Sensitivity to sounds, textures, or lights
  • Strict routines and difficulty with change

Emotional and behavioural differences 

  • Strong focus on specific interests
  • Difficulty managing emotions or anxiety
  • Unusual reactions to sensory stimuli

Not sure if your child needs an autism assessment?


It’s completely normal to feel uncertain about whether an assessment is the right step. That’s why our experienced clinicians are here to help. We’ll talk you through the common signs of autism, listen to your concerns and offer clear, professional advice based on your child’s individual needs.

If we don’t think your child meets the threshold for a diagnosis of autism, we’ll be honest and we won’t recommend moving forward unnecessarily. Our priority is to support your family in making an informed, confident decision that’s truly in your child’s best interest.

Book a free 15 minute consultation


Frequently asked questions

At what age can autism be diagnosed in children?

Signs can appear early, but a formal diagnosis is typically possible from 18 to 24 months. At Xyla, we assess children aged 7 and over via remote appointments.

What’s the difference between NHS and private assessments?

The main difference is waiting times. NHS assessments are funded by the NHS but often involve long waits – sometimes up to five years in certain areas. Xyla offers faster access and expert care with the same high clinical standards.

How accurate are private assessments?

Our private child autism assessments are just as accurate as those carried out by the NHS when conducted by qualified clinicians using trusted, evidence-based tools. At Xyla, we guarantee the accuracy of our assessments as we are regulated by the Care Quality Commission (CQC-registered) and follow NICE guidelines to ensure the highest standards of care.

Will my child’s school accept a private diagnosis?

Yes. Most schools accept private assessments from recognised providers, and the report can be used to support EHCP applications or school-based accommodations.

What happens after diagnosis?

After an autism assessment for your child with Xyla, a full diagnostic report will be provided. If a diagnosis of autism is confirmed, the following support is offered:

  • Guidance on accessing services, therapies, and school accommodations
  • Assistance with EHCP or My Plan applications
  • Ongoing support for families
What are EHCPs and My Plans?
  • EHCPs (Education, Health and Care Plans) are legal documents that outline the support a child may need to succeed and thrive both in school and in life.
  • My Plans are informal support strategies put in place before escalating to an EHCP.

Have more questions about our services?

We understand that you may have questions about our services and how we can support you or your child. For more details and answers to common queries, visit our FAQs page. We’re here to help you feel confident and informed every step of the way.

Stephen W
4 September 2025
From booking my initial free call to speaking with someone directly, every team member I interacted with was approachable, friendly, and truly understanding. Their professionalism…
Jennifer B
26 August 2025
My daughter recently had a combined ADHD and autism assessment through Xyla, and I honestly can’t say enough good things about the whole experience. Our…
S Ward
13 July 2025
From our first conversation with Xyla, things moved very quickly. Within two weeks, the assessments were scheduled, and within six weeks, we had a comprehensive…
K Redpath
15 July 2025
The assessment period was seamless, informative and extremely quick. One of my concerns when going through the diagnosis process was that it would take a…
D Goldsby
29 June 2025
Our clinician immediately put both my daughter and me at ease. She was calm, compassionate, professional, and most importantly, genuinely human. Her approach was warm…

We offer a free phone consultation to answer any initial questions. We’ll listen, understand your needs and take you through our assessment options. There’s no obligation, just reassurance and a helpful starting point.

Please note: We are not an emergency service, if you are in crisis and need urgent support or are worried about immediate risk of harm to self or others, please call 999. Alternatively, you can contact your GP and ask for an emergency appointment or visit your local A&E department. You can also contact the following services 24 hours a day, 7 days a week: NHS Helpline (111) and Samaritans (116 123)