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Every landlord eventually faces the same moment: the boiler stops working on a Friday afternoon, the tenant is on the phone, and you need someone competent at the property quickly. The tradesperson you call in that moment will shape how smoothly the next few days go. Get it right and you barely notice the repair happened. Get it wrong and you can lose weeks, hundreds of pounds, and a good tenant's patience.

Building a small network of reliable tradespeople before you need them is one of the most valuable things you can do as a landlord or property manager. It turns emergencies into routine jobs and protects both your income and your relationship with your tenants.

Why the right tradesperson matters more than the lowest price

It is tempting to pick whoever quotes the least, especially when you are managing several properties and watching every cost. But cheap work that needs redoing is expensive work. A poorly fitted shower sealant that leaks into the ceiling below, or a gas appliance serviced by someone unqualified, can cost thousands to put right.

Reliable tradespeople bring more than labour. They arrive when they say they will, they communicate clearly with tenants, and they flag problems you had not noticed. A good plumber tells you the stopcock is seized. A good electrician notices the consumer unit is overdue for replacement. That kind of early warning saves money.

There is also a compliance dimension. Gas work must be carried out by a Gas Safe registered engineer, and certain electrical work in rented property must be done by a competent person who can issue the right certification. Using someone unregistered is not just risky, it can leave you unable to prove compliance when it matters.

Check qualifications, insurance and registration

Before anyone touches a property, do the basic checks. Ask for evidence rather than taking reassurance at face value.

• Public liability insurance: ask to see a current certificate. If a tradesperson damages a tenant's belongings or your property, you want to know there is cover in place.
• Relevant registration: Gas Safe for gas work, and appropriate electrical registration for notifiable work. Ask for the registration number and verify it.
• Trade body membership: membership of a recognised trade association is not a guarantee, but it usually indicates a business that takes standards seriously.
• Employer's liability insurance: if they employ anyone, this is a legal requirement and worth confirming.

Keep copies of certificates in your property file. If a dispute or insurance claim arises later, having that paperwork ready makes everything easier.

Ask for references and check recent work

A confident tradesperson will happily provide two or three recent references, ideally from landlords or letting agents rather than only homeowners. Rental work is different: it involves tenant access, sometimes awkward timing, and an expectation of documented outcomes.

When you speak to a referee, ask specific questions. Did the tradesperson turn up when agreed? Did they clean up afterwards? Was the final invoice in line with the quote? Did they explain what they had done in plain English? Would you use them again without hesitating?

For larger jobs, ask whether you can see a similar completed project. It is a reasonable request and a professional will not be offended by it.

Agree a written quote before work begins

A verbal estimate is not enough. Ask for a written quote or estimate that sets out the scope of work, the materials to be used, the timescale, and the cost. Clarify the difference between a quote, which is usually fixed, and an estimate, which can change.

Make sure the paperwork covers:

• The exact work to be carried out and what is excluded
• Whether materials are included and what grade they are
• VAT, if applicable, and how it is shown
• Payment terms, including any deposit and when the balance is due
• What happens if additional problems are found once work starts

For anything beyond a minor repair, agree in writing that any extra work must be approved by you before it is carried out. This single rule prevents most billing surprises.

Manage access, tenants and communication

Rental repairs involve people, not just pipes and wiring. Give tenants proper notice before a visit, in line with their tenancy agreement and the law. Confirm the appointment the day before, and let the tradesperson know about parking, keys, alarms and pets.

Where possible, be present for the first visit from a new tradesperson, or ask a trusted letting agent to attend. It helps you assess their manner with the tenant and their attitude to the property.

Ask tradespeople to photograph their work before and after, particularly for anything hidden behind a wall or under a floor. Those images are worth keeping alongside the invoice.

Keep thorough records of every repair

Good record-keeping protects you in deposit disputes, insurance claims and any future sale. For each job, keep the quote, the invoice, any certification, photographs, and a short note of what was done and when.

Note the tradesperson's name, company, registration numbers and contact details in one place. Over time this becomes a genuinely useful asset: a shortlist you can call with confidence, plus a full maintenance history that shows a well-run property.

Review your list once a year. Rates change, businesses close, and standards slip. A quick check that your regular electrician, plumber, gas engineer and general handyperson are still insured and still delivering good work keeps your lettings running quietly in the background, which is exactly where you want them.