Autism Charity relaunches Assessment Service as NHS data shows increased autism waiting times
14th November 2025
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At our Colchester diagnostic centre, we provide gold standard ADHD assessments for adults, using recognised diagnostic tools in line with DSM-V criteria.
Our specialist team takes a thorough and respectful approach, ensuring each assessment reflects your individual experiences and circumstances.
What to Expect:
In-Depth Interview: We begin with a detailed conversation about your personal history and current challenges. This helps us explore the main features of ADHD—such as difficulties with focus, organisation, or impulsivity—and how these affect daily life at work, home, and in relationships.
Comprehensive Background Review: We consider your developmental, medical, educational, and family history to build a clear understanding of your journey and the factors that may influence your experiences.
Ruling Out Other Explanations: To ensure diagnostic accuracy, we consider other possible conditions that may better explain the presentation, including mental health.
Our adult ADHD assessments follow full NICE guidelines. We work to the highest standards set by the National Institute for Health and Care Excellence, using a detailed, multidisciplinary approach and recognised diagnostic tools to ensure accuracy and reliability.
We take into account experiences from work, home, education, and social settings, and where helpful involve partners or close family. This allows us to build a clear picture of each adult’s unique strengths and the challenges they may face with ADHD.
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Our adult ADHD assessments are designed to be detailed yet supportive. Using a combination of interviews, questionnaires, and standardised tools, we build a clear picture of your experiences, challenges, and strengths. Our professional team ensures the process is respectful, comfortable, and focused on your needs.
A diagnosis is often the first step towards positive change. Following the assessment, we provide tailored recommendations that may include practical strategies, workplace or educational adjustments, and, where appropriate, medical advice. Our goal is to help you move forward with confidence and clarity.
At Autism Anglia, we believe that no one should face ADHD alone. By choosing us, you will be connected with a wider community of people who share similar experiences, alongside resources and guidance designed to support your ongoing journey.
Register your interestEmpathy and Understanding: At Autism Anglia, we value compassion and lived experience. Our team includes professionals who understand ADHD both personally and professionally, ensuring your assessment is approached with genuine care and respect.
Personalised Assessments: Every adult’s ADHD journey is different. We tailor our assessments to reflect your individual circumstances, providing a clear and accurate diagnosis that highlights both your challenges and strengths.
Comprehensive Support: From your first enquiry through to after the assessment post-diagnosis sessions, you will have a key person to contact. Our support includes guidance and resources designed to help you manage ADHD in work, education, relationships, and everyday life.
Community Connection: Finding people who understand can be life-changing. We connect you with support groups, resources, and networks where you can share experiences and feel part of a community that values you.
Register your interest
We understand that seeking an ADHD assessment as an adult can raise many questions. Below are some of the most common queries we receive, designed to give you clear and practical information about the process.
An ADHD assessment helps identify whether your difficulties with focus, organisation, or impulsivity are linked to Attention Deficit Hyperactivity Disorder (ADHD). Many adults seek assessment after years of feeling misunderstood or struggling silently. A diagnosis can be the first step toward tailored support and self-understanding.
If you often feel overwhelmed, forgetful, or like your brain is constantly racing, it might be worth exploring. Autism Anglia offers a free screening test to help you decide if a full ADHD assessment is right for you.
An adult ADHD assessment typically includes questionnaires, interviews, and an observation. Professionals will gather information across various settings to get a comprehensive understanding of any challenges.
NHS waiting lists for adult ADHD assessments can be lengthy. At Autism Anglia, we offer private assessments from our Colchester centre, meaning you can often be seen much sooner. Once you enquire, we’ll provide a clear timeline based on current availability.
Yes. A diagnosis from Autism Anglia is recognised and can be used to access workplace adjustments, university support, and further NHS services. You’ll receive a detailed diagnostic report outlining your outcome and recommendations.
Costs vary depending on whether the required assessment is for ADHD or AuDHD (Autism & ADHD combined), but we offer flexible payment options to make things more manageable. For more information, please click here.
While our focus is on assessment and diagnosis, we’ll recommend local services for ongoing support. Whether it’s your GP, workplace, or university, we’ll ensure you have the information you need to take the next steps.
Yes, and it’s more common than many people realise. Our team is experienced in assessing both ADHD and autism, and we understand how the two can overlap. If you believe you may have traits of both, let us know during your enquiry.
It’s completely normal to feel anxious. Many adults have masked symptoms for years and worry about being judged. Our team is warm, understanding, and here to support you, with no pressure, just clarity.
You can begin by visiting our “Get in touch” page and booking your Initial Consultation or giving us a call with any general enquires you may have. From there, we’ll guide you through the next steps.
If you have further questions about ADHD assessments for adults, our team is here to help. Please get in touch and we’ll be happy to guide you.