Professional indemnity insurance · Yeovil & South Somerset
Engineers Professional Indemnity Insurance in Yeovil
Apex Insurance Brokers · FCA-authorised specialist commercial & PII broker · FRN 724952 · Bristol & the South West
If you run a consulting, design or specialist engineering practice around Yeovil, your professional indemnity (PI) insurance is doing a harder job than the generic policy most brokers will hand you. Yeovil is a working aerospace and defence town — Leonardo Helicopters (the former Westland site) anchors a dense supply chain of design houses, stress and systems engineers, machinists, test specialists and consultancies. Cover that satisfies a domestic structural job will not survive contact with an aviation-grade design-liability requirement, a Leonardo or MoD contract clause, or a claim arising from a component that ends up on an airframe. This page is written for the engineer buying the cover, not for other brokers.
Professional indemnity for engineers responds to claims that you were professionally negligent — a design defect, a miscalculation, a specification error, faulty advice or a missed tolerance — that caused a third party financial loss. Unlike solicitors under the SRA or architects registered with the ARB, most engineering disciplines have no single statutory minimum-terms policy imposed by a regulator. That sounds like freedom; in practice it means the burden of getting the wording right sits entirely with you, and the contracts you sign are what actually dictate the cover you need.
Why Apex handles this
- We place PII for consulting and design engineers across the South West as a specialist line, not a bolt-on to a general policy.
- We understand aviation and defence design-liability exposures — and why standard engineers' wordings often exclude exactly what Yeovil work involves.
- We read the contract before we place the cover: Leonardo, MoD and tier-one supplier clauses drive the limit, the retroactive date and the wording.
- We work with insurers who will write high-hazard design risk rather than decline it — this is a high-premium, specialist niche and we treat it as one.
- We are directly FCA-authorised (FRN 724952) and independent, so the advice is about your exposure, not a panel quota.
The Yeovil engineering economy and what it does to your risk
Yeovil's engineering base is unusually concentrated. The Leonardo Helicopters site — designing and supporting the AW159 Wildcat, AW101 Merlin and export platforms — sits at the centre of a supplier network reaching across Yeovil, Chard, Crewkerne, Wincanton and out towards Bridgwater and Taunton. Around it are independent design consultancies, stress-analysis firms, avionics and systems engineers, tooling and jig designers, CNC machinists and NDT specialists, many of them small partnerships or owner-managed limited companies.
That concentration matters for PII because the value at risk downstream of an engineering error in aerospace is enormous relative to your fee. A design or specification defect that grounds a fleet, triggers a recall, or delays a delivery programme generates loss claims that dwarf a typical civil-engineering job. Insurers price for that severity. It is why a Yeovil design engineer frequently pays materially more, per £1,000 of turnover, than an equivalent practice doing commercial fit-out in Bristol — and why using a broker who understands the sector, rather than the cheapest online quote, is the sensible move. Apex is directly authorised by the FCA, and our page on how we run engineers PI placements explains how the placement work is run.
Design liability, aviation contracts and the wordings that catch people out
The single biggest issue we see with engineers' PI in this market is inadequate design and construct (or "design liability") cover, and standard exclusions that quietly remove aviation or aerospace exposure. Points to test on any quote:
- Aviation / aerospace exclusions. Many off-the-shelf engineers' wordings exclude liability arising from the design or manufacture of any aircraft component or anything installed on an aircraft. For a Yeovil supplier that exclusion can gut the policy. The cover has to be arranged with insurers who will affirmatively write the aviation exposure.
- Design-and-construct liability. If you carry responsibility for a design that is then built or manufactured, you need the wording to respond to the cost of the defective design and its consequences — not just to "advice". Fitness-for-purpose obligations in a contract can bite where a policy only covers "reasonable skill and care", so the two must be reconciled.
- Retroactive date. PII is written on a claims-made basis. A defect in a design you completed three years ago is claimed against today's policy. The retroactive date must reach back to cover your historic work, and it must not quietly reset when you switch insurer.
- Contractual liability and hold-harmless. Aviation and defence contracts routinely impose liability terms harsher than common law. Insurers will only cover so much of what you sign — we flag the clauses that will not be insurable before you commit to them.
Limits of indemnity: what Leonardo, the MoD and tier-one contracts require
In this sector the limit of indemnity is usually set by the contract in front of you, not by a rule of thumb. Prime contractors and the Ministry of Defence commonly specify a minimum PII limit in their supplier terms, sometimes coupled with requirements on aggregate cover, run-off, and the basis of the wording. We regularly see requirements stepping up from £1m to £2m, £5m or higher on defence and aviation-adjacent work, and it is not unusual for a single demanding contract to reset the limit for your whole practice.
Two practical traps. First, "each and every claim" versus "in the aggregate" — an aggregate limit can be exhausted by one large claim, leaving nothing for the rest of the year, so contract wording and policy wording have to line up. Second, buying a limit just for one contract and forgetting it applies across every job you do that year. We size the limit to your real contractual obligations and your worst-case exposure, then keep evidence of cover ready so you can satisfy a supplier audit without a scramble. If you also carry public and products liability or contract works exposure, it is worth reviewing those alongside — see our commercial insurance guide for the South West.
Run-off, mergers and retirement
Because PII is claims-made, cover has to continue after you stop trading, sell, or merge — or a claim on old work lands with no policy behind it. This matters acutely for the many small, owner-managed engineering practices around Yeovil where retirement or a trade sale is on the horizon. Run-off cover typically needs to run for several years after you cease, matching the period in which latent design defects tend to surface. We build the run-off question into the arrangement from the start rather than leaving it as an afterthought, and we handle the continuity of cover when a practice is acquired by, or merges into, a larger supplier.
How we quote it
We start with what you actually do — disciplines, the split between design and advisory work, your aviation and defence contract exposure — and the contract requirements you have to meet. From there we approach insurers who genuinely underwrite high-hazard engineering design, present your risk properly, and come back with terms and a wording you can rely on at claim time. Get a tailored quote via /get-a-quote/ or the commercial quote form, or talk it through first at /contact/. You can also browse the full range of specialisms we cover on our sectors page.
Frequently asked
Is professional indemnity insurance a legal requirement for engineers?
There is no single statutory PII requirement for most engineering disciplines the way there is for solicitors or architects. In practice it is effectively mandatory: prime contractors, the MoD, Leonardo's supplier terms and most commercial clients require evidence of PII before you can win or keep the work. The contract, not a regulator, sets your obligation.
Why is engineers' PI more expensive in Yeovil than elsewhere?
Because so much local work touches aerospace and defence, where the financial consequences of a design or specification error are severe. Insurers price professional indemnity primarily on the severity of a potential claim, and aviation-adjacent design risk sits at the higher end. A specialist broker can still find competitive terms, but the honest position is that this is a high-premium niche.
My policy excludes aviation. Is that a problem?
Potentially a serious one. If any of your design or manufacturing work ends up on, or in, an aircraft — including components, tooling, jigs or test equipment for an airframe — an aviation exclusion can remove cover for exactly the claims most likely to hurt. We arrange wordings with insurers who affirmatively cover the aviation exposure rather than carving it out.
What limit of indemnity do I need?
Usually whatever your contracts require, benchmarked against your worst realistic loss. Defence and aviation supply contracts commonly specify minimum limits that step up from £1m into several million, sometimes with aggregate and run-off conditions attached. We size the limit to your actual contractual obligations rather than a generic figure.
What happens to cover if I retire or sell the practice?
Because PII is claims-made, you need run-off cover to continue for several years after you stop trading, so that claims on historic designs are still met. We build run-off and continuity into the arrangement, which is particularly important for the many owner-managed engineering firms around Yeovil planning a sale or retirement.
Do you cover other professional disciplines too?
Yes. We place PII across the professional and technical sectors in the South West and South Wales. If your work overlaps with other regulated professions, our sector guides — including the accountants' PI guide and our wider sectors index — are a useful starting point, and we can quote combined arrangements where a practice spans more than one discipline.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority, FRN 724952. Cover availability, limits and terms depend on insurer underwriting at the time of quotation. This page is general information, not advice for your specific circumstances — contact us for a tailored recommendation.
What might your PI premium look like?
A guideline range built from the premiums insurers have actually quoted on risks we handle. Pick your profession and enter a few details — it updates instantly.
Choose your profession and enter your fee income to see a guideline range.
How these figures are produced
This guide is built from Apex's own market data: the premiums insurers have actually quoted and charged on professional indemnity risks we have handled. Each night that data is aggregated into anonymised rate bands by profession, fee income and limit of indemnity. No client information is published — a band only appears where it contains at least five separate records, and unusually high premiums are excluded so a single atypical risk cannot distort the guide.
The range shown spans the typical spread of recent market outcomes for similar risks. Individual quotes can fall outside it in either direction. Figures exclude insurance premium tax at 12%.
This calculator is not a quote and is not an offer of insurance or advice. Your actual premium depends on full underwriting of your business, including your activities, claims record and insurer appetite at the time.