What does an autism assessment involve?

Our assessment includes a comprehensive clinical interview, standardised diagnostic tools, and a review of your developmental history. It typically takes 3-4 hours, sometimes spread over two sessions.

What happens after diagnosis?

We provide a detailed written report explaining your diagnosis, its implications, and recommendations for support. We also offer post-diagnostic therapeutic support to help you integrate this understanding into your life.

Autism Assessment

Q: Can autism be diagnosed in adults?

Yes. Many adults are not diagnosed until later in life, particularly women and those who have learned to mask their difficulties. A specialist assessment can provide clarity at any age.

Specialist adult autism assessment at Cardinal Clinic, Windsor. Comprehensive diagnostic evaluation by experienced clinicians.

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Clinically reviewed by Dr Jane Perera | Last reviewed: 1 March 2026

Many adults go through life feeling different, struggling with aspects of social communication and sensory experience, without understanding why. An autism assessment can provide clarity, self-understanding, and access to appropriate support. Cardinal Clinic offers comprehensive adult autism assessments conducted by clinicians with specialist expertise in autism spectrum conditions.

Conditions We Treat

We provide specialist assessment and treatment for the full range of conditions in this area, including:

Autism Spectrum Condition (ASC)

A neurodevelopmental condition affecting social communication, interaction, and flexibility of thinking and behaviour.

Late-Diagnosed Autism

Many adults — particularly women and those who have learned to mask their difficulties — are not diagnosed until adulthood.

Autism with Co-occurring Conditions

Autism frequently co-occurs with ADHD, anxiety, depression, and eating disorders.

Autism in Women

Autism presents differently in women and is significantly under-diagnosed. Our assessments account for the female phenotype.

Autism & ADHD

A significant proportion of autistic individuals also have ADHD — we can assess for both conditions.

Sensory Processing Differences

Hyper- or hypo-sensitivity to sensory input is a core feature of autism that can significantly affect daily life.

Our Approach to Treatment

We combine consultant-led psychiatric care with evidence-based psychotherapy to create an integrated and effective treatment plan. Our goal is not just to alleviate symptoms, but to empower you with the understanding and tools to manage your condition in the long term.

Diagnostic Assessment

A comprehensive evaluation including clinical interview, standardised tools (ADOS-2, ADI-R), and developmental history.

Post-Diagnostic Support

Understanding your diagnosis, its implications, and how to access appropriate support and accommodations.

Therapeutic Support

Psychological therapy adapted for autistic individuals, addressing anxiety, depression, or relationship difficulties.

Workplace & Relationship Support

Practical guidance on navigating workplace challenges, social situations, and personal relationships.

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For many of our patients, receiving an autism diagnosis is a moment of profound relief. It helps them make sense of a lifetime of experiences and opens the door to self-compassion and appropriate support.

Dr Jane Perera

Medical Director & Consultant Psychiatrist

Find the Right Level of Care

The right level of care depends on the severity of your condition, your personal circumstances, and your goals. Our clinical team will guide you to the most appropriate option.

Frequently Asked Questions

Ready to take the first step?

Our admissions team is available 7 days a week, 8am–10pm. All enquiries are completely confidential.

Enquire Confidentially +44 (0)1753 869755