Specialist inter partes costs support for law firms and private clients across England and Wales
Ison Harrison Solicitors provides specialist legal costs services to fee earners, solicitors, and private clients. Our experienced Costs Lawyers and Costs Draftsmen manage the detailed assessment, drafting, and negotiation of costs across major practice areas, including personal injury, clinical negligence, commercial litigation, housing disrepair, and contested probate.
We prepare accurate bills of costs, points of dispute, replies, costs budgets, and schedules, ensuring compliance with the Civil Procedure Rules and maximising reasonable recovery. Whether acting for receiving or paying parties, we offer strategic advice, skilled negotiation, and representation before the Court to protect financial interests and secure favourable outcomes.
Our team handles both Claimant and Defendant work, giving us strong commercial awareness and the ability to anticipate and manage risk effectively.
A trusted outsourced costs partner
Our service is designed to reduce internal pressure, minimise risk, and improve recovery without compromising quality. We work flexibly, offering overflow support, specialist technical input, or a fully outsourced costs function, and integrate seamlessly with existing systems and processes.
Our outsourced legal costs services
Personal injury costs – Comprehensive support for multi-track and fixed-cost disputes, with expertise in high-value matters and enhanced hourly rates.
Clinical negligence costs – Technical expertise in complex, high-value claims, ensuring costs strategy aligns with litigation risk and client objectives.
Housing disrepair costs – Extensive experience acting for local authorities, including defended claims and issues such as mis-certification and exaggerated bills.
Commercial litigation and contested probate – Wide-ranging experience supported by strong knowledge of case law and effective costs arguments.
Core services
- Preparation of detailed, electronic, and traditional bills of costs.
- Drafting and negotiation of costs budgets and Precedent H/R forms, plus assistance with CCMCs.
- Preparation of robust points of dispute and replies.
- Strategic advice on proportionality, hourly rates, conduct, and CPR compliance.
- Skilled negotiation to achieve settlement without detailed assessment.
- Representation at Court before Costs Judges and the Senior Courts Costs Office.
In high-value or technically complex costs litigation, we deliver precise, commercially informed support to secure strong outcomes for both receiving and paying parties.
Speak to our Costs Team
For an initial, no-obligation discussion about how we can support your firm, please contact the Ison Harrison Costs Team:
- Call: 0113 384500
- Email: costs@isonharrison.co.uk
Our Commitment to You
We combine commercial realism, technical knowledge and determined advocacy to pursue the best achievable outcome in each matter.
We work towards your agreed objectives at a proportionate cost and seek to exceed your expectations. As part of a long-established legal practice regulated by the Solicitors Regulation Authority, we are qualified to manage all relevant procedural steps.
Our attention to detail sets us apart. Whether seeking an appropriate reduction in Counsel’s fees following a reduction in profit costs or challenging an unreasonable disbursement, we take practical steps to protect your position. We understand that the result must make commercial sense for you, and that focus distinguishes us from many independent costs companies.
We aim to earn long-term instructions by delivering consistent value on every matter. Some of our current clients have instructed us for more than ten years.
We provide negotiation, litigation and costs-recovery services in a streamlined, economical and professional manner.
Our specialist team combines technical costs expertise with experience of acting for both receiving and paying parties across a wide range of disputes.
Testimonials

Robert leads the Costs Team and has extensive experience evaluating and progressing complex costs matters. He combines technical analysis with a clear understanding of the commercial pressures on clients to deliver timely, effective results.
Robert specialises in technical costs issues and points of principle, applying that expertise to improve costs recovery for his clients. In defendant matters, he has led costs initiatives for private-paying clients in claims against firms of solicitors, achieving excellent results.

Simon has worked in costs for more than 15 years, acting for both receiving and paying parties.
His experience covers clinical negligence, personal injury, boundary disputes and general litigation, and he also specialises in solicitor-client costs disputes.

Mary has extensive litigation experience and strong commercial awareness. She applies that experience to maximise costs recovery, manage risk and achieve commercially effective outcomes for her clients.

Marjan is a Solicitor Graduate Apprentice in the Costs Team, based in our Leeds office.
Marjan is an excellent negotiator with experience of achieving strong outcomes for both paying and receiving clients. She is committed to securing the best possible results for her clients.

Wagma is a Trainee Law Costs Draftsman in our Costs Department, based at our Leeds Head Office.
Wagma is legally trained and brings excellent attention to detail to every matter.
















