Problem: energy efficiency regulations are tightening, and most window and door specialists treat them as a cost instead of using them to sell better.
Solution: a 2-page document to give the client that explains what's changing and why new windows are an investment, not an expense.
Result: average quote value up 22%, closing rate rising because the client feels they're buying something necessary.
The installer who stopped complaining
A window and door specialist in Northern Italy specialised in PVC. He sold practically one type of window: standard PVC, double glazing, Uw around 1.3 W/(m2K). It had worked for years.
Then energy regulations tightened: higher requirements for new builds and major renovations. The Green Buildings Directive is pushing towards higher energy classes..
The first reaction? The one I hear from nine installers out of ten: "Now I have to change my whole catalogue, suppliers are raising their prices, clients won't want to pay more."
I told him: let's do the maths before we complain.
The trap of 'I just have to put up with the regulations'
The thinking from almost everyone: the regulations force me to sell more expensive products, quotes will rise, clients will say no, I'll lose work.
Seems logical. But it's wrong.
The client doesn't compare the price of their old window with the new one, because in most cases they don't even know what they currently have, how much it's costing them, or what changes with the new requirements. When you have no information, you decide based on the only thing you understand: the price.
The problem wasn't the regulations. It was selling a technical product as though it were generic. Old window out, new window in, here's the price. No context, no explanation.
The regulations, when you use them well, give you exactly the context you were missing.
The 2-page document that changed everything
Instead of complaining about the new requirements, we put them at the centre of the commercial proposal. Two clean pages, designed for the private client.
Page one: what's changed. In plain language. The windows fitted until recently are no longer up to standard for new buildings. For renovations, requirements are progressively aligning. Then three lines on the practical reasons: less heat loss, lower energy bills, better comfort at home.
Page two: the numbers. The ones the client understands.
| Standard window (Uw 1.3) | High-efficiency window (Uw 0.8) | |
|---|---|---|
| Loss per m2/year | ~45 kWh | ~28 kWh |
| Saving on 20 m2 of glazing | ~340 kWh/year | |
| Saving in EUR | ~85 €/year | |
| Over 20 years of service life | ~1700 € |
These aren't life-changing numbers. But they're real, verifiable numbers that give the client a rational reason to spend more.
At the bottom, one line on state grants. And above all: "For the exact calculation of grants for your specific case, we'll do that together at the site visit." You're not saying "go and find out yourself." You're saying "I'll handle it."
The results: +22% average value
| Before | After 6 months | |
|---|---|---|
| Average quote value | 12.000 € | 14.500 € |
| Standard product | PVC double glazing | Triple glazing Uw 0.8-0.9 |
| Closing rate | 28% | 34% |
The average value rose because the client says yes to triple glazing when they understand why they need it. You're not selling them a more expensive product. You're selling them the product the regulation demands and that will save them money.
The closing rate rose because the client who has the regulations explained to them and sees the saving figures has a different perception of the purchase. They're not buying new windows because the old ones are ugly. They're making a necessary investment, guided by a professional who knows what they're talking about.
Grants in the quote: everything changes
Including the grant calculation in the quote changes how the price is perceived.
Without grants: the client sees 17.000 € and thinks "too much."
With grants and savings in the quote: cost minus state grants, minus energy savings over 20 years. The actual lifetime cost drops by 2500 €-3000 €. And the client has a warmer house, no condensation, windows that meet the regulations.
Make these calculations once, put them in your quote template, and from that point every proposal has an "grants and savings" section that no competitor has.
Calculate grants and savings with BAU Gest
BAU Gest includes automatic calculation of grants and energy savings in every quote. The client sees the real cost, not just the price.
See how it worksMade
The three things to do
Know the regulations in your area. In Italy the Green Buildings Directive is pushing towards Class E by 2030. For most older buildings, replacing windows is the first intervention needed. You don't need to become a regulation expert. You need to know three things: what the law requires in your area, what grants are available, which products meet those requirements.
Put the information in writing. Two pages. Page one: what's changing and why. Page two: saving figures and grants. Update it once a year. Hand it over in person at the site visit. The client arrives at the negotiation already informed.
Change the product you propose as standard. If you're still offering double glazing as your base option, you're losing money. Triple glazing with Uw below 1.0 is the new standard. Propose it as the default option, not as an upgrade.
The regulations are your competitive advantage
Stricter requirements force the market to move upmarket. Those who move first take a larger slice. Competitors still selling standard double glazing will struggle on new builds. Whoever already has the right product and the know-how to explain it to the client is ahead.
Between 2026 and 2030, demand for high-performance windows will continue to grow. Those who prepare now harvest the rewards for years to come. Those who wait will find themselves playing catch-up.
If you'd like to understand how to apply this strategy in your area, book 30 minutes with us. We'll look at your catalogue and tell you how much margin you're leaving on the table by selling the wrong product as standard. No commitment, no contract.
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