Autism & ADHD Assessments for Adults (18+) For many adults, the signs of Autism or ADHD have been present for years — but may have gone unnoticed, misunderstood, or mislabelled. It’s common for people to reach adulthood having developed a range of coping strategies or “masking” behaviours to blend in, while inwardly struggling with focus, energy, relationships, burnout, or a persistent sense of being different.
Major life transitions starting a new job, becoming a parent, entering higher education, or facing burnout — can bring these difficulties into sharper focus. For some, the realisation comes after their child is diagnosed, prompting reflection on their own lifelong patterns. Whether you're exploring this for the first time or have long suspected you might be neurodivergent, seeking a diagnostic assessment can be a powerful and validating step. At Therapeutic Support Services, we offer gold-standard diagnostic assessments for Autism and ADHD in adults. Our process is compassionate, thorough, and grounded in the latest clinical guidance — providing not just a label, but a deeper understanding of yourself.
Why Seek a Diagnosis as an Adult? Many adults come to assessment seeking clarity — but leave with more than that. A diagnosis can help you:
Make sense of lifelong challenges and patterns
Understand your sensory, emotional, or executive functioning needs
Access reasonable adjustments in work, university, or training
Explore tailored therapeutic support or coaching
Reduce self-blame and increase self-acceptance
Feel part of a wider neurodivergent community
Whether or not a formal diagnosis is reached, the assessment process itself can be an empowering journey of self-discovery and reflection.
A Clinically Robust, Neuro-Affirming Approach We use gold-standard tools and procedures that align with:
NICE guidelines
Royal College of Psychiatrists’ best practice
NHS-recognised diagnostic standards
Our reports are written with clarity, insight, and practical application in mind — whether for use in workplace support, personal growth, or access to further care.
What to Expect from the Assessment Each adult assessment is tailored to your individual profile and needs. It typically includes:
A pre-assessment consultation to understand your goals and background
A detailed developmental and social history interview (often with a family member or partner if available)
Use of validated tools such as the DIVA-5, ADOS-2, WISC-V UK and structured clinical interviews
Optional input from work, education, or therapeutic settings
A comprehensive report, diagnostic outcome (where applicable), and post-assessment feedback session
Respectful, Person-Centred Assessment We approach adult assessments through a therapeutic and trauma-sensitive lens. Our clinicians understand the emotional weight that can come with seeking a diagnosis later in life — and we hold space for that with warmth, care, and curiosity. Our service is not about ticking boxes — it’s about helping you make sense of your story.
Fees & Pricing Packages - Investing in clarity, confidence, and the right support. We know that pursuing an assessment is a significant step — emotionally, practically, and financially. That’s why we’re committed to offering not only gold-standard assessments, but also excellent value and supportive care throughout the process. 🧠 Step 2 - Pre-Assessment Screening Service – £495 A structured, early-stage evaluation to determine whether a full diagnostic assessment is appropriate, and which pathway is most suitable. Includes: • Initial 30-minute telephone consultation with Clinical Lead • Developmental history questionnaire • 1–2 hour Zoom session with parents/carers • 30–45 minute observation with the child If a full diagnostic assessment is pursued, this fee is deducted from the final cost.
🔍 Autism Assessment Package Includes: ✔️ Pre-assessment consultation ✔️ Full diagnostic assessment using gold-standard tools (ADOS-2, WISC-V UK) ✔️ Post-assessment feedback session ✔️ Comprehensive written report and recommendations Standard Fee: £2,800 Without pre and post support sessions: £2,600
🧠 ADHD Assessment Package Includes: ✔️ Clinical interview and developmental history ✔️ Validated ADHD rating scales (e.g. Conners 4, SNAP-IV, WISC-V UK) ✔️ Feedback session and full report ✔️ Liaison with schools if appropriate Standard Fee: £1,800
💡 Combined Autism & ADHD Assessment For any adult seeking a comprehensive dual assessment: ✔️ Full autism and ADHD evaluations ✔️ Pre- and post-assessment sessions ✔️ One integrated report with detailed recommendations Standard Fee: £2,995
Your details will be held securely by Therapeutic Support Services, in accordance with GDPR regulations. Your details will never be shared with a third party, and will be securely discarded, should you choose not to go ahead with our services.