Why You Should Never Give a Discount (And What to Offer Instead)

“Can you do anything on the price?” It’s the question every plumber and heating engineer dreads. And too often, the answer is a quick discount just to get the job over the line. But here’s the problem: every time you drop your price, you’re telling the customer your original quote wasn’t worth what you said it was.

There’s a better way — one that keeps your margins intact, makes customers feel valued, and actually grows your business at the same time. It’s called behaviour rewards, and once you understand the concept, you’ll never hand out a lazy discount again.

The Problem With Discounts

Let’s explore what really happens when you give a discount. On the surface, it feels like a smart move — you win the job, the customer’s happy, everyone’s a winner. But look a little deeper.

When you discount, you’re training the customer to expect it. Next time they need work done, they’ll ask again. And if you say no? They’ll feel like they’re getting a worse deal than last time, even though they’re getting the same service at the proper price.

Worse still, discounts attract the wrong type of customer. The ones who shop purely on price are the ones most likely to haggle, least likely to leave a review, and first to disappear when a cheaper quote comes along. You don’t want to build your business around those customers.

The Maths That Should Worry You

Consider this: if your profit margin on a job is 20%, and you give a 10% discount, you haven’t lost 10% of your profit — you’ve lost half of it. That’s the bit most people don’t think about. Discounts come straight off the bottom line, and the bottom line is what keeps your business alive.

If you’ve ever felt busy but not profitable, this could be one of the reasons why.

Behaviour Rewards: The Smarter Alternative

A behaviour reward is fundamentally different from a discount. A discount gives something away for nothing. A behaviour reward gives something in exchange for something — an exchange of value.

The customer gets a benefit. You get something that helps your business. Everyone wins, and nobody’s margins get hurt.

Here’s the key principle: never reduce your price without getting something of value in return.

What Does an Exchange of Value Look Like?

Instead of knocking £100 off a boiler install because someone asks, you’d offer that £100 saving in return for a specific action that benefits your business. For example:

• A Google review: “I’ll apply a £100 review reward once you leave an honest Google review after the job’s complete.”
• A referral: “If you refer a friend or neighbour who books work with us, I’ll send you £100 as a thank you.”
• A testimonial: “Happy for us to use a short testimonial and a photo of the finished work? That’s worth £100 off the invoice.”
• Prompt acceptance: “Accept this quote within 7 days and I’ll include the magnetic filter at no extra charge.”

Notice what’s happening here. The customer still feels like they’re getting a deal. But you’re getting a review, a referral, or marketing material in return — all of which have real, measurable value to your business.

The Refer-a-Friend System

Of all the behaviour rewards you can offer, a refer-a-friend system is probably the most powerful. Word-of-mouth has always been the lifeblood of trades businesses, but most plumbers and heating engineers rely on hope rather than a system.

Hope is not a strategy. A system is.

A proper referral system means you’re actively encouraging referrals, making it easy for customers to refer, and rewarding them when they do. It turns every happy customer into a salesperson for your business — without them even realising it.

How to Structure It

Keep it simple. When you present your quote, include a referral reward as part of the package. Something like:

“Know someone who needs a new boiler or bathroom? If they book work with us and mention your name, we’ll send you £100 as a thank you. There’s no limit — refer five people, get £500.”

Put it in writing. Include it on the quote. Mention it at the end of the job when the customer’s happiest. Then follow up a few weeks later to remind them. This ties in perfectly with a solid follow-up system.

Discounts for Reviews: Why This Works So Well

You already know how important Google reviews are for your business. But getting customers to actually leave them? That’s the challenge.

A behaviour reward solves this neatly. You’re not paying for positive reviews — you’re offering a reward for an honest review. The distinction matters, both ethically and for Google’s terms.

The beauty of this approach is that it turns a potential discount into a marketing investment. That £50 or £100 reward isn’t a loss — it’s the cost of acquiring a review that could bring in thousands of pounds of future work.

Make It Part of Your Process

The key is building this into your quoting process rather than doing it ad hoc. Every quote should include your behaviour rewards as standard. When it’s systematic, you don’t have to think about it — and neither does the customer. It’s just how you do business.

Handling the “Can You Do Anything on the Price?” Question

Now you’ve got a system, handling the discount question becomes straightforward. Instead of squirming or caving, you’ve got a confident, professional response ready:

“I don’t discount the work — the price reflects the quality of what you’re getting. But I do offer rewards for customers who help grow the business. For example, if you leave an honest Google review after the job, I’ll apply a £[amount] reward to your final invoice.”

This does several things at once:

• It shows you value your own work
• It gives the customer a way to save money
• It positions you as professional and structured
• It gets your business something valuable in return

Compare that to just knocking £50 off because someone asked. Night and day.

Building It Into Your Quotes

The most effective way to use behaviour rewards is to include them directly in your written quote. When the customer sees them as part of your professional quoting process — not something you’ve made up on the spot — they carry far more weight.

If you’ve been working on presenting your quotes professionally, adding a behaviour rewards section is a natural next step. It sits alongside your pricing, your guarantees, and your terms.

Having it in writing also means the customer can refer back to it. They’re more likely to actually leave that review or make that referral when it’s documented rather than something you mentioned in passing.

The Bigger Picture

Behaviour rewards aren’t just about protecting your margins — though they absolutely do that. They’re about building a business that grows through systems rather than luck.

Every review you gain makes you more visible. Every referral brings in pre-qualified work. Every testimonial strengthens your brand. And none of it costs you a penny more than you were going to give away as a discount anyway.

The only difference is that now, every penny works twice.

Your Practical Takeaway

Next time someone asks for a discount, don’t say yes and don’t say no. Say: “I don’t do discounts, but I do offer rewards.” Then explain the exchange. You’ll be surprised how positively people respond when they feel like they’re earning something rather than begging for something.

Get the Complete Behaviour Rewards System

The Quote Handbook lays out the complete behaviour rewards system with exact wording you can use on your quotes, a referral framework that runs on autopilot, and a quote acceptance template that builds these rewards right into your process. It’s the difference between hoping for referrals and engineering them.

If you want to take the systems side even further — turning your entire business into a well-oiled machine — The Systems Handbook picks up where the quoting process ends.

Grab your copy of The Quote Handbook on Amazon here.