Who we are
Apex Psychological Services is an independent London-based practice specializing in psychosexual and relationship therapy. We provide confidential, evidence-based support to individuals and couples navigating the full range of intimate concerns — from specific sexual difficulties to the wider relational and emotional contexts in which they arise.
Every therapist who sees clients through Apex is a registered member of COSRT — the College of Sexual and Relationship Therapists, the UK's professional body for psychosexual practice — and many hold additional BACP or UKCP memberships. We work within a strict professional code of ethics, and all sessions are conducted in strict confidence, whether in person at our London rooms or online across the UK.
Our philosophy : Intimate difficulties are extremely common, rarely anyone's "fault", and almost always more treatable than people expect. Our job is to meet you where you are, without judgment, and work collaboratively towards meaningful change at your own pace.
Meet the Director
Andrew Mirrlees
Director - Apex Psychological Services
COSRT-registered Psychosexual Therapist Couples & Individuals
Andrew is the Director of Apex Psychological Services and leads the clinical approach of the practice. He has built Apex around a core belief that specialist psychosexual therapy should be accessible, compassionate, and evidence-based — delivered in a warm, non-judgmental environment where clients feel safe exploring difficult or sensitive topics.
Andrew works with individuals and couples across the full range of psychosexual presentations, including desire and arousal concerns, ejaculation and erection difficulties, painful sex, loss of intimacy, trauma, and compulsive sexual behaviour. He draws on an integrative approach combining psychosexual techniques with cognitive-behavioural and systemic ideas, tailoring the work to each client's goals and pace.
Alongside client work, Andrew leads Apex's standards on clinical governance, supervision, and continuing professional development — ensuring every therapist at Apex practises to COSRT's exacting standards.
Connect with me on LinkedIn
Our wider team of COSRT-registered therapists contributes a breadth of training and lived clinical experience. Full therapist profiles are available on request.
What we can help with
Our therapists work across the full range of psychosexual and relationship concerns. Click any topic below to read more about how we approach it.
Don't see exactly what you're looking for? Get in touch — we'll help you figure out whether we're the right fit.
How we work
Accreditation & ethics
Apex Psychological Services operates under the professional standards of COSRT, the UK's leading body for psychosexual and relationship therapy with over 40 years of accrediting specialist practice. COSRT registration requires postgraduate-level clinical training, supervised practice, ongoing CPD, and adherence to a strict ethical code.
Your confidentiality : everything you discuss is kept in strict confidence. Records are held in line with GDPR and COSRT ethical requirements. The limited exceptions — risk of serious harm or legal obligation — will always be explained at the outset.