• Our team can deal with your horses on-site or at our veterinary clinic

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  • We cater for the full range of equines (and donkeys) from the field companion up to the top level of competition animals

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  • The practice boasts the latest in portable medical laser technology. These can be used for treatment of musculoskeletal problems and treatment of wounds

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  • Our team can deal with your horses on-site or at our veterinary clinic which is fully equipped with menage, hard and soft lunge areas and hard trot up strip

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  • All of our vets carry video endoscopes for analysis of respiratory problems and we have a gastrocope for diagnosing gastric ulceration

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  • Each of our vehicles have an ultrasound scanner and digital x-ray equipment on board, allowing immediate on-site diagnosis. Radiographs can be emailed to a referral centre within hours

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PJ McMahon and Team

Our team can deal with your horses on-site or at our veterinary clinic

P J McMahon Equine Veterinary Services – MVB MRCVS

P J McMahon Veterinary Surgeons are based at Kings Park Equine Clinic which is situated in the tranquil village of Plaistow, West Sussex. It is ideally situated for easy access from the neighbouring counties of Surrey and Hampshire. Our vets are ambulatory and cover the Surrey, Sussex, Hampshire, Berkshire and Gloucestershire areas. We can also see you at our fully equipped clinic if required. Clinics are usually held first thing in the morning.  We cover all aspects of veterinary care services for your horse from children’s ponies up to top class competition animals.

Veterinary Services

If you need to book an appointment either on-site or at our veterinary clinic, please call our 24 hour number:
01403 871331 or fill out our appointment form →


P J McMahon and Brian Sherry View Our Team

The Clinic

Kings Park Equine Clinic is situated in the tranquil village of Plaistow, PJ McMahon qualified in Dublin in 1971. He moved to England and worked with the late Richard Hartley from 1973 to 1976. Richard was a leading show jumping vet who pioneered the treatment and maintenance of competition horses.

What our customers say

  • “PJ” was first introduced to me as our Polo team vet way back in 1989! Ever since, we have sought PJ’s opinion has been sought on the numerous and varied problems and issues with our four-legged friends. With his vast wealth of knowledge and experience, PJ always provides us a with precise and succinct opinion - providing a fantastic source of comfort with all the many varied problems and issues with our four-legged friends! We could not recommend PJ highly enough.

  • I have been fortunate enough to have had the pleasure of working with P.J. McMahon since the early 1970’s, and he has proved an invaluable source of experience and knowledge with my yard of polo ponies over the last 30 + years. He is a consistent provider of reliable, trustworthy expertise and his on-call services are second to none. He is equally as brilliant with the injuries picked up during the summer months when the ponies are playing, as he is with the ailments procured during the winter months. With 150+ horses here in his care, he is fast, efficient and his attention to detail is phenomenal, whilst his diagnostic abilities are, in my opinion, the very best. He is ably assisted by a wonderful team of staff - his administration team are organised and easy to communicate with, whilst the vets who work alongside him are always to the highest standard. He has proved a tremendous source of talent within the veterinary sphere and a large number of successful vets in the local area learnt their trade from him. P.J. has, since I’ve known him, always been to the forefront of the latest technologies available within the veterinary world, and his mobile equipment reflects this. He has always had my full trust and I know that my horses are receiving the very best possible care under his guidance.

  • I have been with P J McMahon MRCVS and his lovely Team, for some years now. My vet is the lovely, Marco-however ALL the Team are wonderful . I have had PJ a few times too, during very sad times and All the Team have been so kind, supportive and friendly. Nothing appears to be too much trouble, and they are always there at the end of the phone. Also very rare is that they listen to" YOU" the owner, and they are very happy to work with YOU, ON YOUR ideas and thoughts. Behind the scenes are the Office girls, who are at the end of the phone, and so helpful and polite. It gives me so much peace of mind, knowing that my horses are in such good hands.

  • Kings Park Equine vets provide a service second to none. PJ and his team have a unique and highly intelligent approach to assessment and support of sport horses. They are always aware of new veterinary research and any relevance it may provide to improving an already outstanding service. The PJ pre-purchase examination goes so far beyond a standard “5 star” vetting. After so many years of caring for so many world class competition horses it is hardly surprising that PJ’s knowledge and experience allow him to provide highly effective and targeted support of all our competition horses and ponies. Every horse is an individual and the care and attention to detail for each equine is overwhelming. Thank you.

  • PJ has been my vet for around 17 years. As a young vet he worked for Richard Hartley who at that time looked after my mother’s (Debbie Johnsey) top show jumpers. We have always had a good relationship with PJ, he is extremely hard working and always tries to his very best for the horses.

  • PJ McMahon and his practice have looked after our 30 livery and riding school horses for around 25 years and we have no hesitation in highly recommending them. PJ's vast experience and his excellent team of vets make the sometimes inevitable need for medical diagnosis/treatment less distressing. They are always calm and reassuring around the horses (and clients), combining the ability to be sympathetic with realistic assessments of the injury/condition. They have access to sophisticated equipment for both diagnosis and treatment and, in our experience, emergency calls have always been handled very efficiently.

  • What a delightful team at P J Mcmahon. All the team are friendly and extremely helpful. From the front of house team to the Vets they go over and above to help you. They are quick to respond and extremely knowledgeable and helpful. We have also used them to vet new horses and they have been extremely thorough ensuring that our pennies are well spent. I would highly recommend them.

  • I have been with PJ and his team for well over twenty years. I have always appreciated the straight talking practical approach, with a small team of vets who actually know you and your horses. In the variety of stressful situations horses put you in, the vets at PJ’s have proved themselves true professionals time and again. The whole team are genuinely caring and supportive but most importantly the wealth of knowledge and experience is first class. I wouldn’t trust the welfare of my horses to anyone else!

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