How Plumbers Can Use Referrals to Grow Their Business

Author : MESHHH SEO | Published On : 05 Oct 2026

Ask a number of established plumbers where their work comes from and they will usually say that someone told them. A landlord told a letting agent, a site manager told a contractor, a customer told a neighbour. Referrals are the subtlest type of marketing for the trade and for many firms the most dependable.

They do not happen by accident though, plumbers who receive a constant stream of referrals are doing a small number of things consistently, and most of them are easy to copy. Here is an overview of where referrals come from and how to encourage them (without sounding desperate) plus how to turn a one-off referral into a repeat customer.

Why Referrals Work So Well

A recommendation carries the extra element of somebody else's reputation. When a builder tells a client "Use this plumber, they were reliable on our last job" the client is borrowing the builder's judgement. Hiring a plumber is also a trust based thing, the work is often hidden behind plaster and floorboards and it is not uncommon for things to go wrong years later. People are often more comfortable with the idea of someone they have already worked with.

Referred customers also usually come in with a more positive view of the work. Arrive confident, compare less quotes, and have a better idea of what you want; all things that do not mean you should be complacent when in comes to cost and quality, but the conversation is always more comfortable to start with.

Know Where Your Referrals Actually Come From

Before trying to generate others, find out where your own come from. Many plumbers think the majority of their work comes from customers when a good chunk actually comes from elsewhere.

Review the last twelve months of jobs and note how you acquired each one, a simple list of the past months is fine. You may find that three electricians account for a surprising amount of work, or that a single letting agent sends you most of your repeat jobs. Now you know where the work comes from, focus your efforts instead of spreading them out thin.

• The most common sources for UK plumbers are:
• Past customers, including friends and family who share your name.
• Other trades such as electricians, heating engineers, kitchen fitters, tilers and builders.
• Builders and contractors who need to subcontract plumbing.
• Letting agents, landlords and property managers.
• Merchants and suppliers whose staff know who is busy.

Do the Job in a Way People Want to Talk About

Nobody recommends a plumber because the work was adequate, they recommend someone because the experience was better than they expected. People recommend someone when the plumber arrived on time, explained what the problem was clearly, gave a reasonable quote, kept the house tidy, and called when they said they would return.

Small things make an impact, laying dust sheets, wearing shoe covers, letting the customer know if you will be late, and leaving a short summary of what you did all stand out. On sites, the equivalent includes working well with other trades, notifying of delays early (not when the job is over), and tidying snags up without being asked. It costs nothing to develop these habits and it has a big impact on the conversations you have afterwards.

Make Recommending You Easy

Even happy customers will sometimes not think to pass your name on to someone else. Sometimes it is because they forget, or they are unsure if you want more work. A gentle prompt at the right moment does wonders.

The best time to prompt someone is after you have solved a problem or finished a job they were happy with, just the right time to say "If you know anyone else who needs a plumber, I'd be glad to help". It does not sound like much pressure, and it tells them that you welcome referrals.

Give people something to pass on. A business card, a short text message with your details or a magnetised fridge card can all help. Leaving a card with your invoice is far more likely to be kept than handed over in a conversation.

Ask for Reviews and Testimonials

Online reviews are a form of referral whilst you sleep. A prospective customer who searches for your name and finds recent reviews is getting a recommendation from people they've never met.

Ask people for reviews directly after a job by sending a short message with a link to the place you'd like the review to appear. Specific feedback is always more useful, so mentioning the type of job is usually good, and reply politely to all reviews (especially less positive ones) as it shows how you react when things don't go to plan. Never offer anything in exchange for a positive review, it may violate the rules of the review platform.

Build Relationships With Other Trades and Suppliers

Tradespeople are some of the best referral sources because they know the same customers at different points of a project. A kitchen fitter who needs a plumber for the sink and dishwasher connections, or a heating engineer who can not take on a bathroom job, will often recommend someone they trust.

These relationships are usually reciprocal, if you pass work to an electrician or tilter you respect, they are more likely to do the same for you. Be clear about what you do and do not cover so people know to whom to refer jobs, and visiting your local merchant regularly and being known as straightforward and reliable can also bring in recommendations.

Use Referrals to Reach Builders and Contractors

If you want to move from domestic jobs to subcontract work, referrals are still the way to go. Site managers and project managers tend to appoint people they have seen working or whose name comes from another trade. Learning how to Connect With Construction Companies in a way that fits how they appoint subcontractors helps you present yourself properly when a recommendation does arrive, including having insurance, health and safety documents and examples of previous work to hand.

It also helps to remember that construction still relies heavily on personal contact. A closer look at why the Construction Industry UK is slow to digitise demonstrates why a quiet recommendation from a trusted colleague counts for more than any formal application.

Keep Track of Who Helps You

Referrals are often lost in the mix, and a simple record makes it easy to say thank you and notice patterns. Keep a note of who recommended you for each job, what it was and when. A quick message of thanks to the person who recommended you, even a short text, is good manners and encourages them to do it again.

Digital tools can help here, a Networking App for plumbers gives you a place to keep your profile, completed projects and contacts together, so people who have worked with you can find you and pass on their details more easily. It supports personal relationships rather than replacing them.

Thank People and Be Honest About Limits

Gratitude does not have to include gifts. A genuine thank you, an update on the progress of the job, or returning the favour with a referral is usually appreciated. If you choose to offer a thank you gesture, keep it modest and consider if it is likely to create a conflict of interest, especially where the referrer works for a company with their own policies on gifts.

Equally, do not accept referrals you can't deliver well. If a job falls outside your skills, or you can't start for several weeks, say so honestly and, where you can, suggest someone else. A referral that does not come out well can damage the reputation of the person who made it, and they will remember.

A Practical Next Step

Look back over your last twenty jobs and mark how each one came to you. Pick the two sources that produced the most work and contact each this week: thank them, tell them what kind of jobs you would like more of, and ask whether there is anything coming up where you could help. That small, specific conversation is often the start of a steadier stream of referrals.