We Reviewed a Real Boiler Quote — Here’s Everything It Got Wrong

A few months ago, an engineer sent me his quote document and asked for honest feedback. He was winning about one in four quotes and could not work out why. He was competitively priced, Gas Safe registered, experienced, and by all accounts did excellent work. But three out of every four customers were choosing someone else.

I spent twenty minutes reviewing his quote, and the problems were immediately obvious. Not because his price was wrong. Because his quote was doing almost nothing to help the customer say yes.

What follows is an anonymised breakdown of the most common mistakes I see in real boiler quotes, drawn from the dozens I have reviewed over the years. If you recognise any of these in your own quoting, do not worry. Every single one is fixable, and fixing them will change your win rate faster than anything else you could do.

Mistake One: No Personalisation Whatsoever

The quote opened with the company name, followed by a generic line: “Please find enclosed our quotation for a replacement boiler.” That was it. No customer name in the opening. No reference to the property. No mention of the conversation they had during the survey.

Consider this: the engineer spent an hour in the customer’s home. They discussed the family’s hot water needs. They looked at the existing system. They talked about what was going wrong. And none of that appeared in the quote. It read like a document that could have been written without ever visiting the property.

The fix is straightforward. Open with the customer’s name. Reference their address. Summarise what you discussed during the survey. Something as simple as: “Following our visit to your home on 14 Oakwood Drive on Tuesday, I have put together a recommendation based on what we discussed about your hot water running out during the mornings.” That single sentence tells the customer you were listening, you care, and this quote is specifically for them.

If you have read our guide on creating a proper quote front page, you will know that personalisation starts on page one. A photo of the customer’s property, a bespoke strapline, and a personalised introduction set the tone for everything that follows.

Mistake Two: Features Without Benefits

The quote listed the proposed boiler as: “Worcester Bosch Greenstar 8000 Life 30kW Combi Boiler.” Underneath was a list of specifications. Output ratings, efficiency percentages, dimensions, and weight. Technical data that means absolutely nothing to a homeowner who just wants hot water that works.

Engineers often assume that customers care about specifications because engineers care about specifications. But the customer is not buying a boiler. They are buying warm radiators, reliable hot water, lower energy bills, and peace of mind. The specification is irrelevant unless it is translated into something they value.

Instead of “30kW output” try “powerful enough to heat your entire home comfortably, even during the coldest months.” Instead of “94% ErP efficiency rating” try “one of the most energy-efficient boilers available, designed to reduce your gas bills from the day it is installed.” Instead of listing dimensions, explain that the compact size means it fits neatly in the same cupboard as the old boiler with no additional building work needed.

Every feature should be followed by a benefit. The feature tells the customer what it is. The benefit tells them why they should care. Without the benefit, the feature is just noise.

Mistake Three: No Pain-Building

The quote jumped straight from the introduction to the product recommendation. There was nothing in between to remind the customer why they needed a new boiler in the first place.

This matters more than most engineers realise. By the time a customer receives your quote — possibly days after the survey — they have had time to cool off. The urgency has faded. The broken boiler might have limped back to life. The spouse might be questioning whether they really need to spend the money.

A good quote includes a section that summarises the current situation and the problems it is causing. Not to frighten the customer, but to remind them why they started this process. Something like:

“During our survey, we identified that your current boiler is seventeen years old and showing signs of significant wear. The heat exchanger is struggling to maintain consistent output, which explains the fluctuating hot water temperatures you have been experiencing. Parts for this model are becoming increasingly difficult to source, which means future repairs are likely to be expensive and time-consuming.”

That paragraph does not sell a boiler. It sells the consequence of not buying one. It reminds the customer that doing nothing has a cost too — ongoing frustration, rising repair bills, and the risk of a complete breakdown in the middle of winter. This is the Build stage of the Establish, Build, Capture framework, and skipping it is one of the biggest quoting mistakes there is.

Mistake Four: VAT Displayed to Make the Price Look Bigger

The quote showed the price as: “Subtotal: £2,650.00. VAT @ 20%: £530.00. Total: £3,180.00.” For a domestic boiler installation where VAT is often at the reduced rate or already included in the price the customer expects to pay, breaking it out like this is a problem.

When a homeowner sees “£2,650” and then “£3,180” right below it, their brain anchors on the lower number and the higher number feels like a penalty. The VAT breakdown is doing nothing to help you and everything to make your quote feel more expensive than it needs to.

For domestic work, present one clear price. “Your investment: £3,180 including VAT” is cleaner, simpler, and less likely to trigger price resistance. If you need to show the VAT breakdown for commercial or landlord work, put it in the terms and conditions at the back of the document, not next to the headline price.

If you want to understand how pricing presentation affects customer decisions more broadly, our article on fixed price versus time and materials covers the psychology in detail.

Mistake Five: No Call to Action

The quote ended with: “If you have any questions, please do not hesitate to contact us.” And that was it. No clear instruction on how to accept. No next step. No deadline.

“Do not hesitate to contact us” is the corporate equivalent of a shrug. It puts the entire burden on the customer to work out what happens next. Should they call? Email? Text? When? What do they need to say? Do they need to pay a deposit? How do they confirm?

A proper call to action removes all ambiguity. “To accept this quotation and book your installation, simply reply to this email with ‘Go ahead’ or call me on 07700 900000. I will then confirm your installation date and arrange a 10% deposit to secure your booking.” That is a call to action. It tells the customer exactly what to do, how to do it, and what happens next.

Include a validity period as well. “This quotation is valid for 30 days from the date shown above” creates gentle urgency without being pushy. It gives the customer a reason to make a decision rather than letting your quote gather dust on the kitchen table.

Mistake Six: No Social Proof

The quote contained zero testimonials, zero references to completed work, and zero evidence that anyone had ever hired this engineer before. For all the customer knew, they could have been his first job.

Social proof is one of the most powerful persuasion tools available, and it costs nothing to include. A single testimonial from a satisfied customer — ideally someone in the same area or with a similar job — can tip the balance in your favour.

“Dave and Sarah, West Bridgford: ‘Brilliant job. Turned up on time, finished in a day, and left the house spotless. Our new boiler is so much quieter than the old one. Highly recommended.'” That takes up four lines in your quote and does more selling than an entire page of specifications.

If you do not have testimonials yet, building your Google reviews should be a priority. Every five-star review is ammunition for your quotes, your website, and your leave-behind brochure.

Mistake Seven: The Quote Looked Like an Invoice

The entire document was plain text in a default font. No logo. No brand colours. No images. No structure beyond a few lines of text and a price at the bottom. It looked like something generated by accounting software, not a professional sales document.

When a customer receives three quotes and two of them look like invoices while one looks like a branded, professional proposal, the professional one wins every time. Even if it is not the cheapest. Because the customer associates the quality of the document with the quality of the work.

You do not need to hire a graphic designer. A clean Word or PDF template with your logo at the top, your brand colours in the headings, and a logical layout makes an enormous difference. If you have invested in building your brand, your quote is where that investment pays off directly.

The Before and After

Let me paint the picture of what this quote looked like before and after addressing these issues.

Before: A plain text email with a company name at the top, a one-line introduction, a product model number with specifications, a VAT-separated price, and “do not hesitate to contact us” at the bottom. Total length: half a page. Total impact: none.

After: A branded PDF with the customer’s property photo on the front page, a personalised introduction referencing the survey conversation, a section explaining the current problems with the existing system, a recommendation that translates features into benefits, a clean single price with clear payment terms, a strong testimonial from a local customer, and a clear acceptance process with a 30-day validity period. Total length: three pages. Total impact: the engineer’s win rate went from one in four to nearly one in two within two months.

The price did not change. The work did not change. The only thing that changed was how the value was communicated. That is the power of a properly structured quote.

What You Can Do This Week

• Pull out your last quote and read it as if you were the customer. Would you feel confident choosing this business? Would you understand why the recommendation is right for your home? Would you know exactly how to say yes?
• Check for the seven mistakes above. Go through each one and honestly assess whether your quotes suffer from the same issues. Most engineers find at least four or five.
• Add one testimonial. Even if you only have one good review, include it in every quote from today onwards. It takes thirty seconds and adds genuine credibility.
• Rewrite your call to action. Replace “do not hesitate to contact us” with a specific instruction that tells the customer exactly what to do next.
• Translate one feature into a benefit. Pick the main product you recommend and rewrite the description so it focuses on what the customer gains, not what the product does.

Go Deeper With The Quote Handbook

This article gives you the what — the common mistakes and the principles for fixing them. But if you want the how, with the full anonymised case study showing a real quote before and after transformation, the complete Establish, Build, Capture framework, and a master template you can adapt for your own business, that is what The Quote Handbook was written for.

It walks you through every section of a winning quote with real numbers, real examples, and step-by-step instructions you can implement this week. If you are tired of losing quotes to cheaper competitors, grab your copy on Amazon today.

And if you want to tighten up the operational systems behind your quoting — from customer follow-up to job management software — The Systems Handbook picks up where The Quote Handbook leaves off.