FORMAL INSURANCE COMPLAINT LETTER
Important legal-advice, jurisdiction and formality warning
This fictional letter is a worked example, not legal advice, a binding coverage determination or a guarantee that an insurer or ombudsman will pay a claim. It assumes a domestic buildings-and-contents policy for a property in England and Wales. The policy schedule, endorsements, exclusions, excess, notification requirements, FCA rules, evidence and time limits must be checked against the actual policy and event. Do not admit a cause, discard damaged items, authorise substantial works or accept a settlement without considering independent advice. The Financial Ombudsman Service and a court may reach different conclusions on coverage, causation and valuation.
Date: 18 November 2026
To: Customer Relations and Complaints Team, Northbridge Mutual Insurance plc, 7 Exchange Quay, Manchester M5 3EF
From: Daniel Robert Ellison, 44 Heathercombe Road, Bristol BS7 8QW Telephone: 0117 555 9264 Email: daniel.ellison@example.test
Policy: HomeSecure Buildings and Contents, NS-8842196 Claim: NB-260904-331 Policyholder: Daniel Robert Ellison Property: 44 Heathercombe Road, Bristol BS7 8QW Subject: Formal complaint about rejection of water-damage claim
1. Decision being challenged
I complain about Northbridge Mutual’s decision dated 28 October 2026 rejecting my claim for sudden water damage at the insured property. The rejection says the damage resulted from “gradual seepage and defective maintenance” and relies on exclusions 6.2 and 6.8. I disagree. The loss was caused by a sudden failure of a concealed push-fit connector on the first-floor bathroom supply pipe on 3 September 2026. I reported it promptly, took reasonable steps to limit the damage and supplied a plumber’s report identifying the failed connector. I ask Northbridge Mutual to withdraw the rejection, assess the insured damage under the policy and pay the amount reasonably established by the evidence.
This is a formal complaint under the applicable FCA complaint process. It is not a new claim and does not waive any notification, policy or legal right. Please link it to claim NB-260904-331 and preserve the claim file, recordings, photographs, adjuster notes and decision-making records.
2. Policy and chronology
The policy began on 1 January 2026 and renews annually. The schedule records buildings cover of £410,000, contents cover of £62,000, an escape-of-water excess of £350 and alternative-accommodation cover of up to £7,500. I paid the annual premium of £486.20 on 28 December 2025. There is no endorsement excluding the first-floor bathroom or a connector installed behind the wall. I have complied with the policy’s reasonable-care conditions to the best of my knowledge and have not made a previous claim for water escape at this address.
At 06:42 on 3 September 2026, my wife Lucy Anne Ellison heard a continuous hiss from the airing cupboard and saw water running through the ceiling of the kitchen. I turned off the internal stopcock at 06:48, switched off the kitchen circuit at the consumer unit, moved furniture away from the affected area and called Harbourside Plumbing and Heating Limited at 07:03. Their engineer, Adrian Cole, attended at 08:25. He removed a section of the airing-cupboard panel and found that the push-fit connector on the cold-water supply to the bathroom basin had separated. The connector and pipe were dry on the external surface except for the fresh fracture line, and there was no evidence of long-term corrosion.
Adrian isolated the branch, replaced the connector and tested the pipework at 09:14. His report dated 5 September 2026 records “sudden escape of pressurised water; no visible historic staining or deterioration at the failed fitting”. His invoice was £312.00. I notified Northbridge Mutual through its claims line at 10:02 on 3 September and received reference NB-260904-331 because the claim was registered the following day. The claims handler told me to photograph the damage, retain damaged materials and arrange emergency drying if needed.
An adjuster, Mara Singh ACII, visited on 10 September. She photographed the kitchen ceiling, two cabinets, laminate flooring and airing-cupboard lining. On 18 September she requested receipts and a drying record. I supplied those documents on 22 September. On 28 October Northbridge Mutual rejected the claim without commissioning a moisture survey or obtaining an independent plumbing opinion. The rejection refers to old staining in a photograph, but the visible mark is a shadow from a previous paint touch-up in 2024 and not water damage. I disclosed that fact to the adjuster during the visit.
3. Coverage and evidence
The policy covers water escaping from fixed domestic installations, subject to the stated excess and exclusions. I accept that the cost of repairing the failed connector itself may be treated differently from resultant damage, depending on the wording. I am not asking Northbridge Mutual to pay an excluded maintenance improvement. I ask it to assess the ceiling, floor, cabinets, drying, redecoration and reasonable temporary accommodation consequences caused by the sudden escape.
The evidence includes the policy schedule and wording (DE-01), claim acknowledgement (DE-02), dated photographs taken at 06:55 and 07:18 on 3 September (DE-03 to DE-07), Harbourside’s report and invoice (DE-08), the emergency drying certificate (DE-09), the adjuster’s photographs (DE-10), hotel and storage receipts (DE-11 to DE-14), and the rejection letter (DE-15). The original damaged laminate, failed connector and removed plasterboard were retained in sealed bags until 2 October, when the adjuster confirmed in writing that disposal was permitted after photographs were taken. I have not concealed or altered the evidence.
The independent moisture survey by Olivia Marek, CSRT, of Dryline Assessments, dated 14 October 2026, found elevated moisture in the kitchen ceiling and lower wall, with a drying period of 21 days. It attributes the pattern to a recent point-source escape, not long-term seepage. The survey recommends replacement of 6.8 square metres of laminate, removal and replacement of 4.2 square metres of plasterboard, drying, repainting and replacement of the two damaged base cabinets. I invite Northbridge Mutual to inspect the original records and, if it disagrees, to identify the expert basis for that disagreement.
4. Schedule of loss
My current quantified loss is:
* emergency plumbing and isolation: £312.00; * drying equipment and monitoring for 21 days: £546.00; * replacement laminate and fitting: £1,184.00; * removal, replacement and decoration of kitchen ceiling and wall: £2,460.00; * replacement of two water-damaged base cabinets: £1,180.00; * alternative accommodation for four nights while electrical testing took place: £620.00; * secure storage of kitchen contents for 21 days: £238.00; and * reasonable travel to inspect the property and meet contractors: £96.40.
These items total £6,636.40. Less the policy excess of £350.00, the present net claim is £6,286.40. I have not included the £168.00 cost of the replacement push-fit connector because I accept that Northbridge Mutual may treat the failed component as a maintenance item. I also do not claim inconvenience as a fixed sum, but ask the insurer to consider the four-day displacement and repeated cancelled contractor appointments when assessing any fair complaint remedy. The loss schedule may change if concealed damage is discovered during authorised works; I will give notice and supporting evidence.
No repair contractor has started permanent reinstatement because I wanted to preserve the opportunity for a fair inspection. The exposed area is protected and the kitchen remains usable with a temporary sink arrangement. Please confirm within seven days whether Northbridge Mutual wants a further inspection before works proceed. I will obtain competitive quotations and mitigate loss, but I cannot leave the home deteriorating indefinitely.
5. Remedy requested and complaint timetable
I ask Northbridge Mutual to reconsider the coverage decision, accept that the reported event was a sudden escape of water, and pay £6,286.40 after applying the £350.00 excess, or provide a detailed item-by-item counter-assessment. I also ask for reimbursement of reasonable additional loss proved during reinstatement, confirmation of the approved repair scope, and £400.00 for avoidable distress and inconvenience caused by the unsupported rejection and the delay in arranging a meaningful assessment. The requested complaint resolution is therefore £6,686.40 plus any later verified reinstatement loss; the £400.00 is separate from the indemnity calculation and is not a claim for punitive damages.
Please acknowledge this complaint within five business days and issue a final response within eight weeks, explaining the policy wording, evidence and reasons for any refusal or partial payment. If the complaint is not resolved, I may refer it to the Financial Ombudsman Service within the applicable period after the final response. I reserve the right to pursue any court or contractual remedy, but will consider proportionate alternative dispute resolution. Referral to the Ombudsman does not itself guarantee payment or extend every legal limitation period.
Please send all correspondence to me and do not contact the plumbing contractor without telling me what information is sought. Nothing in this letter accepts the rejection, waives a policy condition, admits contributory negligence or prevents me from updating the schedule. I ask Northbridge Mutual to retain the complete claim file and to identify any expert evidence on which it relies.
Yours faithfully,
Daniel Robert Ellison
Signed electronically by Daniel Robert Ellison on 18 November 2026