If you’ve spent years feeling distracted, disorganised or exhausted by the effort of keeping up, a private ADHD assessment can give you a clearer answer.
ADHD, which stands for Attention Deficit Hyperactivity Disorder, can present itself in a number of ways, from difficulty in concentrating to chronic procrastination to poor organisation and emotional overwhelm, and can have a major effect on everyday life.
According to the NHS, an estimated 2,478,000 people in England have ADHD, including those without a diagnosis, with new referrals for ADHD assessments increasing by 46.7% between June 2025 and June 2026.
Demand for ADHD assessments is rising, which means many people are left waiting several months or even years for answers, which is why we’ve outlined exactly what happens in an ADHD assessment and how going private can not only save time but also offer a more thorough, whole-person approach.
What To Expect During a Private ADHD Assessment
Step 1: Your Initial ADHD Assessment
A private ADHD assessment can take place in person or online and is carried out by a qualified psychiatrist. Lasting up to 90 minutes, the assessment is designed to explore how your mind works and how your symptoms affect daily life.
An assessment should be more than a questionnaire — a good psychiatrist will build a full picture, considering all the factors that may be contributing to your symptoms. This helps them understand whether an ADHD diagnosis fits, or whether something else is going on that needs attention.
Step 2: What The Psychiatrist Will Ask
During your assessment, the psychiatrist will ask about your childhood, education, work, family and close relationships, and your mental and physical health, as well as anything else that might be influencing your attention, energy, mood or behaviour.
The conversation shouldn’t feel rushed. Your previous mental health history and any past treatment will also be discussed, as symptoms such as low mood, sleep problems and anxiety can overlap with ADHD — answering these questions in as much detail as possible will help the psychiatrist understand exactly what’s happening.
Step 3: Building Your Treatment Plan
Following the assessment, your psychiatrist will put together a treatment plan. This may include medication or practical strategies to improve your sleep, structure your day, or change your approach to nutrition and exercise — there is no one-size-fits-all to treating or managing ADHD.
What works for one person may not work for another, so it is important that your treatment is tailored to you and your needs. At the Lagom Clinic, our goal is not to make you feel different for a few hours, but to help you function better, think more clearly and feel more in control of your life.
What If It Isn’t ADHD?
If your psychiatrist doesn’t diagnose you with ADHD, that doesn’t mean nothing is wrong. Something else may be contributing to your symptoms, such as menopause, sleep apnoea or an anxiety disorder — all of which can mimic or overlap with the symptoms of ADHD.
A good assessment will explore all these possibilities, and your psychiatrist can recommend treatment for them instead. So when you’re choosing a private ADHD clinic, it’s worth checking how thorough the assessment process is.
NHS vs Private ADHD Assessment
So why book a private ADHD assessment? Why not just go through the NHS? Both pathways have their advantages and disadvantages, and it’s important to weigh them up before deciding which route is right for you.
NHS ADHD Assessment
The most common reason people go through the NHS for an ADHD assessment is that it’s free, covering the assessment, titration, reviews and monitoring. This immediately takes away any financial barrier to accessing treatment. However, the key thing to consider here is the indirect cost of waiting to be seen.
NHS England’s own ADHD Taskforce reports waits of up to eight years for adults, with demand outweighing the capacity of services. This can have a huge impact on the individual as well as lead to an increased risk of educational failure, long-term unemployment and chronic mental health problems.
Appointment length is another factor to consider. The average NHS GP appointment lasts around nine to ten minutes, and NHS services are under the same time pressures across the board. With this in mind, think about how quickly you need answers and how much time matters to you. Having enough time to talk through your symptoms and history can make the whole experience a lot less overwhelming.
Private ADHD Assessment
Choosing to go private also has its advantages and disadvantages, the main advantage being time. Private ADHD clinics typically offer shorter waiting times and longer appointments than the NHS, giving you more time to discuss your symptoms and the impact they’ve had on your daily life.
The biggest difference between NHS and private ADHD assessments is cost. For private clinics, fees vary widely and a longer, more thorough assessment usually costs more than a short one. It’s worth checking what’s included before going private, as some clinics charge separately for the report, follow-up and titration — this can help you gauge how much it’s going to cost and what you can afford.
A private clinic can charge anywhere between £500 and £1,500 for an ADHD assessment, so it’s a significant investment — though for many people, faster answers and a longer appointment are worth the cost of a private assessment.
See the table below for how an NHS ADHD assessment compares with a private one:
| NHS ADHD Assessment | Private ADHD Assessment | |
|---|---|---|
| Waiting time | Up to 8+ years for adults in some areas of the UK | Typically a few weeks |
| Cost | Free throughout, including assessment, titration, report and monitoring | Between £500 – £1,500 for the assessment |
| Appointment length | Varies but often shorter than a private assessment | Usually 60 – 90 minutes in a single session |
| Choice of clinician | Allocated to you, though Right to Choose lets you pick an NHS-funded provider | You choose your clinician |
| Follow-up and reviews | Included, but subject to the same waits | Faster and more responsive, usually charged per appointment |
Ready To Book An ADHD Assessment?
At The Lagom Clinic, we offer private ADHD assessment and treatment in Bristol, taking a calm, thorough, whole-person approach to understand what’s really going on.
Our assessments are designed to be evidence-based, practical, and take into account the bigger picture, not just symptom management. Treatment can include anything from practical strategies and workplace/study adjustments to talking therapies and medication (where appropriate).
Whether you’re looking for an ADHD diagnosis for you or a family member or you’re not 100% sure about what you’re experiencing, our friendly team of doctors can help.
Book a 90-minute initial ADHD assessment with Dr Kitty Farooq – Consultant General Adult Psychiatrist and take that one step closer to understanding your symptoms or get in touch over the phone or by email for more information – we’d be more than happy to help.
The most valuable outcome of an ADHD assessment is real clarity.
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