The term ‘cowboy builder’ covers a range of conduct, from the tradesperson who simply does poor quality work and charges too much for it, to the contractor who deliberately misrepresents their qualifications, takes payment for work that will never be done, or operates through a succession of different business names to escape the consequences of previous complaints. Understanding which of these you are dealing with matters, because the response — and the legal route available to you — is different in each case.
This article explains how to investigate a cowboy builder, what information you can gather yourself, and when professional investigation is the right approach.
Start With What You Have
Before instructing anyone to investigate, gather and organise everything you have from the initial engagement:
- The original quote, estimate, or written contract — including any emails or messages in which the scope of work was agreed.
- All receipts, invoices, and bank records showing what you paid and when.
- All communications with the builder: emails, texts, WhatsApp messages, letters. Screenshot and preserve these in full.
- Photographs documenting the state of the work at different stages. If you do not have these, take a comprehensive photographic record now of the current condition of the work.
- Any documents the builder provided about themselves or their business: a business card, a letterhead, a vehicle registration, a VAT number.
Companies House Investigation
If the builder operated through a limited company, the company is registered at Companies House and its details are publicly searchable. The Companies House registration tells you: the registered name and number of the company; the registered office address; the names of directors; the date of incorporation; whether the company has filed its accounts; and whether the company is still active or has been dissolved.
A builder who operates through a dissolved company, or through a succession of companies that have been incorporated and dissolved in rapid succession, is showing a pattern that is directly relevant to your claim and to any trading standards or Companies Standards complaint. Directors who have been associated with multiple dissolved or insolvent companies are also identifiable through Companies House.
Checking Qualifications and Memberships
Many trades have accreditation or registration bodies whose membership confers specific standards: NICEIC and NAPIT for electrical work, Gas Safe Register for gas work, NHBC for builders, FMB for master builders. If a contractor claimed membership of any of these bodies, their membership can be verified directly with the relevant organisation.
A contractor who claimed qualifications or memberships they do not hold has committed a misrepresentation that strengthens any legal claim you have against them. This is worth establishing clearly before you proceed.
Online Investigation
A systematic online search of the builder’s name, business name, and telephone number can reveal a great deal: reviews on Trustpilot, Google, Checkatrade, or Rated People that tell a story about previous clients; social media profiles that may reveal other business activities or the builder’s current location; local news stories or community forum posts that reference the business; and any other publicly available information relevant to their conduct and identity.
Where the contractor appears to operate under multiple trading names — the business name on the invoice differs from the one on the vehicle, which differs from the one on the quote — each name is worth searching independently.
When to Instruct a Professional
Professional investigation adds most value in cowboy builder cases where: the contractor has become uncontactable and needs to be traced; the background investigation requires access to databases not available to the public; the dispute is heading toward court proceedings and evidence needs to be gathered and documented professionally; or the financial value of the dispute justifies a more thorough investigation than self-help can provide.
At ARF Investigations, we handle cowboy builder investigations regularly. The most common outcome of a background investigation is the identification of a pattern of behaviour — multiple dissolved companies, multiple trading names, a history of complaints — that substantially strengthens a claim and may support a trading standards referral alongside the civil dispute.
Dealing with a cowboy builder and need investigation support? Contact ARF Private Investigators for a confidential consultation.