Architects’ Professional Indemnity & Liability Insurance

Cover built for your practice – from concept to build

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Bespoke cover tailored to your needs

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​Professional Indemnity Insurance for Architects

Protect your practice against claims of negligence, errors, or omissions with tailored cover arranged by specialist brokers.

Many architects are experiencing rising premiums and increased restrictions, particularly around fire safety, cladding, and higher-risk projects. If your renewal is approaching, we can review your current terms and provide a competitive alternative from our panel of leading insurers.

If your renewal isn’t due yet, simply send us your renewal date and we’ll be in touch closer to the time.

  • Specialists in Professional Indemnity Insurance for Architects
  • Bespoke cover tailored to your projects and contractual obligations
  • Support with contract reviews and risk exposure
  • Fast, no-obligation renewal review

Ready for a review?

Request a quote, call our office on 01732 252 898, or email your current policy details and renewal date to info@clarkewilliams.co.uk — we’ll take care of the rest. We’re happy to work from other insurers’ proposal forms or provide one of our own.

Further Reading

If you’re reviewing your Professional Indemnity Insurance as an architect, the following guides may be useful:

Why Architects Choose Clarke Williams

We are an award-winning, independent insurance broker specialising in Professional Indemnity Insurance for architects and construction professionals. Our UK-based team provides a responsive, personal service — no call centres, just experienced brokers who understand your sector.

We work with a panel of leading insurers to secure competitive terms, with cover limits from £100,000 to £10 million and above. Our approach is tailored to your specific activities, ensuring your policy reflects the risks associated with design, specification, and project delivery.

We can arrange bespoke cover to include specialist extensions such as fire safety, cladding, basements, and other complex project exposures. We also support clients with contract reviews to help identify potential insurance gaps before they become an issue.

As an architect, your advice and designs are relied upon by clients, contractors, and stakeholders. Even a small oversight can lead to significant financial loss — making the right Professional Indemnity cover essential.

Why Architects Need Professional Indemnity Insurance

No matter how careful or experienced you are, the potential for mistakes is always there — and in today’s blame culture, even a small oversight can lead to big claims. Professional Indemnity Insurance protects your architectural practice against allegations of professional negligence, such as giving incorrect advice, design errors, or specification issues.

If a client claims that your design caused unexpected structural costs or project delays, the policy is there to fight your corner — covering legal defence fees and any damages awarded, so you can focus on running your business rather than worrying about costly disputes.

Many clients, contractors, and local authorities now make Professional Indemnity Insurance a compulsory condition of their contracts or tendering process, and won’t appoint an architect or practice without it. Having the right cover in place not only protects your reputation but also keeps you eligible for the projects you’ve worked hard to win.

Real Claims Examples – How Your Policy Protects You

Even the most experienced architects can face unexpected disputes. Here are a few examples of how Professional Indemnity Insurance can step in to protect your practice when things don’t go to plan:

  • Design Error – Structural Miscalculation:
    An architect specified an incorrect load-bearing detail for a residential project, leading to cracking and remedial works. The claim for rectification costs exceeded £120,000. The PI policy covered the defence and settlement costs, allowing the architect to continue trading with minimal disruption.

  • Planning or Regulatory Oversight:
    A drawing submitted for planning approval omitted key accessibility features, delaying the project and resulting in a claim from the client for lost time and professional fees. The insurer covered legal costs and negotiated a fair resolution.

  • Specification Dispute:
    A client alleged that the architect’s material specification led to water ingress after completion. Investigations showed partial responsibility shared with the contractor. The PI cover funded expert reports and contributed to settlement—protecting both the architect’s finances and reputation.

  • Contractual Delay Claims:
    A commercial client alleged that design changes caused project delays. The insurer provided defence support and legal representation, ensuring the practice could continue working on other live projects while the issue was resolved.

Your insurance doesn’t just pay claims—it fights your corner, funds your defence, and helps protect the reputation you’ve worked hard to build. With Clarke Williams, you’ll have a broker who understands the risks unique to architectural work and ensures your cover responds when you need it most.

Jon Weller profile picture
Jon Weller
3 years ago
Highly recommend Clarke Williams and especially Scott, who helped me find the best cover for both my construction businesses. Answered all questions promptly and helped explain everything easily. Great Service.
James profile picture
James
3 years ago
I received very good service from Clarke Williams and would certainly recommend. Graham was extremely thorough and efficient.
Rachel Gardner-Poole profile picture
Rachel Gardner-Poole
3 years ago
I found Scott Williams particularly helpful in getting my insurance setup for my new business.
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Call 01732 252 898 or email us today for a comprehensive insurance policy at a competitive price.

The best way for us to understand your business and get the best premium back from the market is for you to complete our proposal form.

If you have already completed a proposal form, please feel free to send a copy to info@clarkewilliams.co.uk

Alternatively if you renewal is not due yet, register with us now so that we can contact you nearer the time.

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    Architects Professional Indemnity – Frequently Ask Questions 

    What limits of indemnity do you provide?

    We can provide cover limits ranging from £100,000 – £10,000,000 and we have access to the following extensions of cover:

    • Negligence or breach of duty of care – making a mistake in your work or giving bad advice.
    • Disputes caused by your breach of a duty of care referred under the Housing Grants Construction and Regeneration Act 1996
    • Loss of Documents
    • Fire Safety, Basements and Swimming Pool cover extensions
    • Criminal defence costs relating to a regulation or statute which applies to your business, such as the CDM regulations
    • Infringement of intellectual property rights – using content from a website or publication without permission
    • Breach of confidence – sharing confidential or sensitive information without consent
    • Negligent misstatement or misrepresentation – making a mistake or error when providing information
    • Collateral warranty review services
    • Mitigation Cover – costs incurred in remediating or mitigating a loss or potential loss that may otherwise result in a claim subject to specific requirements.
    • Pollution Cover – claims arising out of the actual, alleged or threatened, sudden or accidental presence, discharge, dispersal, release, migration or escape of Pollutants other than asbestos, nuclear or radioactive material of any sort.
    • Joint Ventures Cover – covers you against liability arising out of your professional services in respect of any joint venture, provided that you have previously declared to us all fees/turnover received from any joint venture subject to specific requirements
    • Fraud & Dishonesty Cover
    • Court Attendance Costs Cover

    What other insurances might I need?

    Public and Public Liability Insurance, covers you for any bodily injury or property damage which arises in the course of your day today activities, such as visiting a client’s premise.

    Employers’ liability Insurance is a legal requirement for all employers within the UK. The minimum required limit is £5,000,000 although most insurers give £10,000,000 as standard. The policy is designed to protect employees’ who sustain an injury or illness during their normal business activities by providing compensation.

    Buildings & Contents Insurance. Cover your computers, equipment and other workplace property such as business records against fire, flood, theft and more so you can have peace of mind that you’re protected against the unexpected.

    Business Interruption Insurance. We can help you get back to work after a crisis. Business Interruption can insure you against lost business income and any additional expenditure that you might have incurred following a loss.

    Cyber & Data Insurance. From sensitive client plans and designs to personal data and project correspondence, a single breach could lead to costly legal claims, reputational damage, or project delays. Cyber insurance helps protect your practice against data loss, hacking incidents, and liability arising from cyber attacks, giving you peace of mind so you can focus on designing, not defending.

    How do insurers calculate an Architects Professional Indemnity Insurance Premium?

    When looking at an architect’s business, there are many factors that can affect the terms provided:

    Fee Income  

    The fee income is an important rating factor when an underwriter is considering a Professional Indemnity Insurance premium, as it is the one element that all companies can be judged on.

    Project Sizes

    The size and complexity of past and present contracts are taken into consideration. The insurers proposal form will ask you for details of the work in which you are involved in. Small home projects can be considered lower risk, as opposed to large hotel complexes or high rise offices.

    Overseas Contracts

    Does the business carry out work for overseas clients? Specialist architects often find that their services are required on the other side of world, especially in countries trying to expand their tourism and business economies. The legal requirements in other countries can be very different to the UK, with countries such as the United States and Canada being more litigious. As a result this can affect the premium being offered.

    Number of years trading and experience 

    Newly established architects can be seen as an increased risk to insurers as there is a lack of trading history to confirm a good claims experience or ability within the organisation. When presenting a risk to an insurer, it can be beneficial if a copy of the directors’ CV’s are provided, as this can present a better picture of the business or person being insured.

    Activities Undertaken 

    Activities and sectors will have their own rating of risk, and insurers will be interested in the types of projects and disciplines in which an architect is involved in. For instance,pre-planning designs for a new home would be considered very low risk compared to an architect that ismanaging a super basement in London. The reason for these different ratings is due to risk and size of the potential claim.

    Can you offer fire safety cover for architects?

    Yes. We provide quotations that include inner limits for fire safety and combustibility cover, tailored for architects involved in complex or high-risk projects. This ensures your practice is protected when working on sensitive developments or large-scale buildings.

    Are basements and swimming pool projects covered?

    Yes. While insurers may initially impose restrictions, we can often negotiate inner limits for clients, subject to project details. This allows you to confidently take on specialist designs such as basements, pools, or other bespoke architectural features.

    Is it possible to pay the policy premium monthly?

    Yes. Some insurers offer interest-free direct debit or reduced-interest payment options. Where these aren’t available, we can provide our own finance facility to make monthly payments simple and manageable.

    Our account managers will arrange Professional Indemnity and Liability policies at a competitive price with comprehensive wordings which are acceptable to your clients or Professional Body.

    Professional Bodies for Architects in the UK

    Some professional bodies give guidelines on what levels of insurance a company should hold. Below are the professional bodies that represent architects within the UK. It may be useful to consult with them if you do not know your requirements.

    The Royal Institute of British Architects (RIBA)
    RIBA is not a governing body but they do require members to hold Professional Indemnity Insurance. They represent the interests of the profession and provide qualifications, information, professional training and seminars.
    Architects Registration Board (ARB)

    This ARB is the governing body for architects. They set the guidelines and standards for architects providing professional services in the industry. Below is an outline of guidelines set by the ARB in relation to Architects Professional Indemnity Insurance:

    • Minimum Limits of indemnity – For fee income that is less than £100,000 a minimum limit of indemnity of £250,000 must be held.
    • Policy wording – Cover must be written on a civil liability basis.
    • Limit of indemnity – The limits must be on an “any one claim/each and every claim” basis, and not aggregated during the policy period.
    • Legal defence costs – Legal defence costs must be in addition to the limit of indemnity provided.
    • Run-off cover – if the practice ever ceases, the partners must ensure that they purchase run-off cover. This must be held for at least six years.

    Want to speak to one of our specialists?

    Call us today for a comprehensive insurance policy at a competitive price.

    Telephone: 01732 252898

    or email us.

    "It will never happen to me". Still not convinced? Have a look at the below claims examples for Architects:

    We hope it will never happen, but here are some claims examples from the real world.

    Time Delays

    Problems in the construction of a new house caused delays and additional costs, leading to a claim against the architect who had been involved in planning, design and site inspection.
    Amount paid: £82,000.

    Allegation of Non-Compliant Designs.

    The Insured designed a factory unit.  The client alleged that the lighting was inadequate and did not comply with relevant BSI regulations. The insurer successfully defended the claim on the client’s behalf with only legal defence costs paid by the insurer.
    Amount Paid: £25,000

    Bad Recommendation 

    An architect provided designs for a single-story extension and recommended a local builder that may be able to assist. The works were completed but it transpired later that the foundations and materials used were severely inadequate. The builder had gone bust and there was no one left in the chain, which only left the architect who was sued for his involvement.
    Amount Paid: £8,000

    Failure to seek planning permission

    An architect was instructed to design a large shopping development. Although a planning permission request was received by the Local Authority, there was a mix up, which led to a failure to seek permission for the correct area.
    Amount Paid: £40,000.

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