Private ADHD Assessment For Adults

You are not alone, and there is a clear path forward.

Private ADHD assessments for adults across the UK, conducted by specialist clinicians. Each assessment is DSM-5 and NICE guideline compliant and includes a full written report, personalised treatment plan, and supporting letters, delivered within 10 working days. No GP referral required.

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Same-Week Availability

Shared Care Available

No Referral Needed

NHS Waiting Times
Are Now Averaging 5+ Years for Adult ADHD Assessment

Over 2.5 million people in England are estimated to have ADHD, the majority of whom remain undiagnosed. NHS waiting lists for adult ADHD assessment currently average more than 5 years in many areas, leaving thousands without answers and without access to appropriate support.

Private ADHD assessment for adults with ADHD Certify provides a clinical-grade diagnosis from a specialist clinician, typically within the same week of booking. Your report is accepted by the NHS, by employers, and by educational institutions.

Wait 5+ Years

Average NHS Wait for Adult ADHD Assessment

Same Week

ADHD Certify
assessment availability

What Happens
at Your Adult ADHD Assessment?

The process is straightforward. From booking to receiving your report, here is what to expect:

Book Your Assessment

Select a date and time that suits you. No GP referral required. Available online across the UK or in person at selected clinic locations.

Complete Pre-Assessment Forms

Two questionnaires are sent in advance; one is completed by you, and the other by a person who knows you well (family member, partner, or close friend). These help your clinician understand your background and symptom history before the session.

Your 90-Minute Assessment

A structured clinical interview conducted by a specialist clinician via video call or in person. The session covers symptom presentation, developmental history, and functional impact across key life areas. DSM-5 and NICE guideline compliant throughout.

Receive Your Report

Your comprehensive written report is delivered within 10 working days. It includes your diagnostic outcome, supporting clinical rationale, a personalised treatment plan, and letters suitable for employers, universities, or your GP.

Common Reasons
Adults Seek an ADHD Assessment

ADHD in adults is frequently unrecognised, particularly in individuals who have developed compensatory strategies over time or who were not diagnosed in childhood. An assessment may be appropriate if you consistently experience any of the following:

We Offer Transparent Pricing. No Hidden Costs

Understanding your options before you commit matters. Here is a direct comparison of the main routes to an adult ADHD assessment in the UK:

	ADHD Certify	NHS	Other Private Clinics
Wait Time	1-2 Weeks	2+ years	8+ weeks
Cost	From £495	Free (with long wait)	£800–£2,400
GP Referral Needed	No	Yes	Often yes
NHS-Accepted Report	Yes	Yes	Varies
Payment Plans	Yes	N/A	Rarely
Right to Choose (England)	Yes	3–12 months	N/A

Our ADHD assessment for adults includes your full diagnostic session, comprehensive written report, personalised treatment plan, and supporting letters. No referral needed. Discounts may be available, check our pricing for current offers before booking.

Adult ADHD Diagnosis
Is Just the Beginning: Here Is What It Unlocks

A formal ADHD diagnosis from ADHD Certify is a clinically valid document that can be used across multiple areas of your life. Here is what becomes available to you:

ADHD Medication

Following a confirmed diagnosis, treatment options will be discussed with your clinician. If you choose to proceed with private prescribing, prescriptions can be issued directly, with medication delivered to your door via our partner pharmacy.

Workplace Rights for People with ADHD

A formal ADHD diagnosis may entitle you to reasonable adjustments under the Equality Act 2010. Your written report includes a supporting letter suitable for sharing with your employer or HR department, detailing recommendations for workplace accommodations. Learn more about ADHD and Access to Work.

ADD University & Student Support

Students with a confirmed ADHD diagnosis may be eligible for Disabled Students’ Allowance (DSA), extra time in exams, and other academic accommodations. Your report and supporting letter can be submitted directly to your institution’s disability services team.

Financial Support (PIP) for ADHD

DHD can be a qualifying condition for Personal Independence Payment (PIP). Your diagnostic report provides the clinical evidence required to support a PIP application. Learn more about PIP for ADHD and the eligibility criteria. We recommend consulting a benefits adviser or Citizens Advice for guidance on your application.

Meet Our Clinical Team

All ADHD Certify assessments are conducted by qualified clinicians registered with the relevant regulatory body. Our team includes registered mental health nurses, advanced practitioners, and specialist psychologists, each with experience in NHS and private ADHD assessment.

Rebecca Wilson

Clinical Director . NMC: 13E2851E

Shymaa Sword

Clinical Lead . NMC: 20F1602E

Lisa Smith

Advanced Practitioner . NMC: 07K0886E

Garrett Kennedy

Counselling . HCPC: PYL26015
Psychologist . / BPS: 2363

What Our Clients Say

Our therapists are qualified, experienced, and genuinely invested in the people they work with. Every clinician on our platform is accredited with a UK professional body and verified before joining.

      EXCELLENT  
   Based on 374 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Brett Sayce 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very very happy with these guys, Rebecca Wilson senior clinician is outstanding and then I dealt with Annisah to discuss medication, a very emotional and informative chat and for the first time in 53 years I realised what is wrong with me, could not recommend more highly, thank you for helping me to change my life for the better, excited about the future for the first time ever
  
 
      Posted on Google  
   
   Jamie Nicol 
 
 
 
 Trustindex verifies that the original source of the review is Google. We would highly recommend ADHD Certify.  All communications and interactions with them have been positive and we were able to arrange and complete my son’s ADHD assessment within a week.   The practitioner that completed his assessment (Roina Moussirou) was brilliant with a very calm and helpful style.   My son often struggles to engage with strangers however he felt at ease talking to Roina about his life.  As a parent I learnt more about my child and his daily struggles and found the assessment to be very thorough.  After the assessment Roina arranged for a follow up session a few days afterwards where my son’s diagnosis was delivered sensitively.    I have recieved extensive information and support through links and documents following the diagnosis which will be helpful for support moving forward.   Once again, I would highly recommend, very impressed with the service.   Thank you
  
 
      Posted on Google  
   
   Lee Evans 
 
 
 
 Trustindex verifies that the original source of the review is Google. Created a safe place very quickly explain the process we had the odd technical glitch but very different to a therapy session and we we do some dark hard places.

I felt safe going there as Holly was with me.
  
 
      Posted on Google  
   
   idris ahmed 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had an excellent experience during my ADHD screening with Toni Henderson. The interview was thorough and in depth, with specific, thoughtful questions and plenty of time to give detailed answers and discuss my experiences without feeling rushed. Toni was incredibly understanding and accommodating of my travel circumstances on the day, which I really appreciated. Her wealth of knowledge and experience was evident throughout, yet the conversation felt natural and flowed easily. She made me feel comfortable, listened to and understood. I’m very pleased to have been seen by someone so experienced and compassionate, and I would highly recommend her.
  
 
      Posted on Google  
   
   Beth Holland 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had a meeting with toni yesterday and she was fantastic. Really helped me understand myself and my traits. Would definitely recommend
  
 
      Posted on Google  
   
   Emma Mary Busby 
 
 
 
 Trustindex verifies that the original source of the review is Google. Annisah is great and really supportive , educating me about the meds , ensuring that I’m getting the best out of them. If needed I get clear guidance and quick answers to my questions .
  
 
      Posted on Google  
   
   Natalie Jones 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had my assessment yesterday with Kerri. I get super nervous and anxious meeting new people, especially in these kind of circumstances, but Kerri was incredible, so kind and patient and I felt comfortable so quickly. Kerri was very clear throughout, and gave me ample time to think and speak. Very glad I chose ADHD Certify, and extra glad I chose Kerri. Thank you 🖤
  
 
      Posted on Google  
   
   Jasmine 
 
 
 
 Trustindex verifies that the original source of the review is Google. Shymaa was an amazing assessor and made me feel comfortable and heard throughout my assessment. She gave me some amazing advice and ideas on how to move forward
  
 
  
  
 
    Verified by Trustindex  Trustindex verified that these reviews were published on ADHD Certify's Google Business Profile. Learn more

Ready to Get Answers?

NHS waiting lists for adult ADHD assessment now exceed more than 2 years in most areas. A private assessment with ADHD Certify is available within the same week of booking,and comes with everything you need; a comprehensive clinical report, personalised treatment plan, and letters for employers, universities, or your GP.

No referral needed. No long wait. Assessed by a specialist clinician, not a generalist.

Frequently Asked Questions

Do I need a GP referral?

No. We operate as a self-referral service. You can book directly without speaking to your GP first. If you would like your GP to be informed of your diagnosis, your report can be shared with them following your assessment.

How long does the adult ADHD assessment take?

The clinical assessment session is 90 minutes for adults. You will also complete two pre-assessment questionnaires in advance, which take approximately 20–30 minutes each.

How quickly will I receive my report?

Your full written report is delivered by email within 10 working days of your assessment. It includes your diagnostic outcome, clinical rationale, treatment plan, and supporting letters.

Can I get medication after a private diagnosis?

Yes. If medication is recommended as part of your treatment plan, our clinicians can prescribe directly. Medication is dispensed via our partner pharmacy and delivered to your home.

What is the difference between ADHD and ADD?

ADD (Attention Deficit Disorder) is an older term that is no longer used in clinical diagnosis. The current diagnostic classification under DSM-5 and ICD-11 uses ADHD (Attention Deficit Hyperactivity Disorder), with three recognised presentations: Predominantly Inattentive, Predominantly Hyperactive-Impulsive, and Combined. Your report will specify which presentation is most consistent with your clinical picture.

What if my assessment does not result in a diagnosis?

Not all assessments result in an ADHD diagnosis. If your clinician concludes that ADHD is not the primary explanation for your difficulties, your report will include clinical observations and, where appropriate, recommendations for further assessment or alternative support pathways.

Online vs In-Person ADHD Assessment for Adults: Are They Clinically Equivalent?

Yes. Both online and in-person ADHD assessment for adults follow the same DSM-5-compliant clinical protocol and produce the same comprehensive report. The online assessment is conducted via a secure video call with full ID verification.