Listen, the government is offering you money for a warm home, but you're still cold. Why?
Tom here, an installer at Wingedas. I've been in the window and door industry for 18 years, and I'll tell you straight: if in 2026 you're still paying 100% of the price for new windows, you're simply throwing money away. I'm serious. The "Clean Air" programme isn't some supermarket leaflet; it's real money up for grabs – up to approx. €31,837 for home thermal modernisation. And replacing old, leaky windows is a key part of it.
It's February, freezing outside, and you're sitting in your living room feeling an unpleasant chill from the window. Supposedly new, bought 5 years ago, yet it's already draughty. I know this scenario; I hear it every week. Now imagine not only having perfectly warm, draught-free windows, but also the state refunding you most of the cost. Sounds good? Then read on, because I'm about to explain how to do it and what mistakes to avoid so you don't lose a single penny.
Why is it important? How much money is on the table?
We're not talking about small change here. We're talking about a significant cash injection and real savings for years to come. From my observations on construction sites, the grant for window replacement 2026 is one of the most beneficial programmes in years. The stakes are high. On one hand, you have the chance to recover a significant portion of your expenses; on the other, if you do it wrong, you'll be left with old problems and an empty wallet.
Think of it this way: you're investing in windows that meet stringent standards. As a result, your heating bills drop by 20-30% annually. With today's energy prices, that's a saving of several thousand euros every year! Plus, there's the grant from the Clean Air programme itself, which covers not only the cost of windows but also doors, garage doors, sills, and professional installation. It's a worthwhile endeavour, but only if you know the rules.
Last November, we had a client near Warsaw. A house from the 90s, old wooden windows through which the wind howled. Mr. Marek heard about Clean Air and decided to act. He contacted us; we helped him select windows that met the programme's requirements (Uw below 0.9), prepared a quote, and documents for the auditor. The entire window investment for his 200m² house cost him approx. €10,465. He qualified for the enhanced grant level. After a few months, he received a refund of over approx. €6,977 to his account. This winter, he called to thank us – his gas bills dropped by almost 40%, and the house is finally warm. Is it doable? Yes, it is.
Clean Air 2026: For whom and how much? Grant levels
The "Clean Air" programme is not monolithic. It's divided into three thresholds depending on income. This is important because it determines how much money you'll get back. Remember, we're talking about income per household member.
Grant levels in the Clean Air 2026 programme
Below are the specific ranges. Check which group you fall into. Please note that income thresholds are adjusted periodically, but for 2026, we assume they will look like this:
| Grant Level | Annual Applicant Income | Average Monthly Income per Person | Maximum Grant (Comprehensive Thermal Modernisation) | Grant Intensity (windows) |
|---|---|---|---|---|
| ✅ Basic | up to approx. €31,395 | N/A | approx. €15,349 | up to 40% |
| ⚠️ Enhanced | N/A | up to approx. €440 (multi-person household) up to approx. €617 (single-person household) |
approx. €23,023 | up to 70% |
| ❌ Highest | N/A | up to approx. €253 (multi-person household) up to approx. €355 (single-person household) |
approx. €31,395 | up to 100% |
Note: The amounts and income thresholds provided are approximate for 2026 and may be subject to change. Always check current guidelines from relevant national or regional environmental protection funds.
What windows to choose to get a grant? Technical requirements
This is the "meat" of it. This is where most people make mistakes. They think it's enough to buy any "energy-efficient windows." Then the application is processed, and it's a shock. No money, because the windows don't meet the requirements. The key parameter you must remember is the Uw heat transfer coefficient.
According to the technical conditions (often based on standards like EN 14351-1), which apply to grant programmes in 2026, for façade windows, the Uw coefficient must not be higher than 0.9 W/m²K. For roof windows, the limit is 1.1 W/m²K. Full stop. If a salesperson tries to convince you to buy windows with Uw = 0.95, saying "it's almost the same," they are either misinformed or trying to trick you.
Don't buy windows that just meet the minimum. If the standard requires Uw ≤ 0.9, don't look for the cheapest product that barely scrapes by with that value. Why? Because it's the bare minimum. Investing in windows with a Uw of 0.75-0.8 is a small extra cost (approx. 15-20% more for the window), but the thermal comfort and future savings are incomparably greater. Remember, the programme refunds part of your expenses, so your real cost for this "better" option will be lower. It simply pays off. Besides, standards might increase again in a few years. It's better to be prepared.
Comparison of popular window profiles for grant eligibility
So you don't have to wander aimlessly, I've prepared a small comparison. These are profiles we frequently install for clients applying for a window replacement grant. Prices are approximate for a reference window of 120x150 cm, net.
| Profile | Approximate Price (net) | Uw Coefficient (with triple glazing) | Meets "Clean Air" requirements? | My Rating |
|---|---|---|---|---|
| Gealan S9000 | approx. €221 - €279 | ~0.77 W/m²K | ✅ Yes | ✅ Very good value for money. A solid mid-range choice. |
| Salamander bluEvolution 82 | approx. €256 - €326 | ~0.73 W/m²K | ✅ Yes | ⚠️ Higher-end. Excellent parameters, beautiful profile white. Worth it if the budget allows. |
| Rehau Synego | approx. €233 - €302 | ~0.76 W/m²K | ✅ Yes | ✅ Proven and reliable. Very good parameters at a reasonable price. A safe choice. |
| "No-name" 5-chamber Profile | approx. €140 - €186 | ~0.95 - 1.1 W/m²K | ❌ No | ❌ Avoid at all costs. You won't get the grant, and in 3-4 years, the windows will need re-adjustment or replacement. A false economy. |
You can read more about specific models and their prices in our complete PVC window price list for 2026.
Step by Step: How to get a grant for window replacement?
The procedure might seem complicated, but if you break it down, everything becomes clear. I've guided clients through this process for years. Here's the path you need to follow:
If you want to receive the maximum grant amount (i.e., comprehensive thermal modernisation), you should start with an energy audit. An auditor will inspect your home and identify what needs improvement to reduce energy consumption by at least 40%. The cost of the audit (approx. €279) is also refundable. This is your roadmap to a warm home.
You submit the application online through the relevant national/regional grant portal or directly to your local environmental protection fund. Attach documents such as proof of property ownership and income statements. Then, you await a decision and the signing of an agreement.
After signing the agreement, you have time to act (usually 30-36 months). You choose a company, like ours, and sign a contract. We take measurements, manufacture the windows, and install them. Remember to choose "warm installation" – this is crucial for maximising the benefits of your new windows and is also an eligible cost!
Once installation is complete, you submit a payment request. Attach invoices, a work acceptance protocol, and – most importantly – documents confirming that the installed windows meet the Uw ≤ 0.9 W/m²K requirement (e.g., a declaration of performance from the manufacturer). After verification, the environmental protection fund will transfer the money to your account.
Pre-financing: Money before the work starts
Recently, the programme introduced a great option for individuals with lower incomes (enhanced and highest levels) – pre-financing. What does it involve? You don't have to pay the full amount out of your own pocket. You sign a contract with a contractor (like us), and the fund transfers an advance payment (up to 50% of the grant value) directly to our account. We then carry out the work, and after completion, the fund pays out the remaining amount. This is a huge simplification that opens the door to thermal modernisation for those who don't have savings to begin with.
- You have savings to cover the entire investment.
- You want complete freedom in choosing contractors (not all agree to pre-financing).
- You qualify for the basic grant level.
- You don't have funds to pay upfront.
- You qualify for the enhanced or highest grant level.
- You want to simplify the process and transfer some formalities to the contractor.
Pitfalls and mistakes that will cost you money (and nerves)
In these 18 years, I've seen it all. People who lost grants due to silly mistakes that could have been avoided. Here's my blacklist of things to watch out for when applying for a window replacement grant 2026.
Most common mistake: Pro-forma invoice and advance payment BEFORE signing the grant agreement. In grant programmes, the date of the first invoice is crucial. If you receive an invoice or pay an advance before entering into an agreement with the environmental protection fund, that entire expense may not be recognised! ALWAYS sign the grant agreement first, and only then order windows and pay the contractor. I've seen the tragedy of people who lost tens of thousands of euros in grants this way.
- Lack of documentation from the window manufacturer: After installation, you must have "paperwork" confirming that the windows have a Uw ≤ 0.9. Demand a declaration of performance or an energy label for each window from the seller. Without this, you won't be able to settle your application.
- Choosing a contractor "from an advert": A general handyman who offers to do everything cheaper might have no idea about the programme's requirements. Choose companies with experience in these grant programmes, who will sign a clear contract with you and provide an acceptance protocol compliant with guidelines. This is your security.
- Saving on installation: You bought super windows with Uw=0.73, and then you commissioned installation with just foam, without vapour-tight and vapour-permeable tapes. Congratulations, you've just created thermal bridges and in 2 years, you'll be battling mould around the windows. Warm installation (layered) is an absolute must and is also eligible for a grant!
- Ignoring the fine print in the contract: Both in the agreement with the environmental protection fund and with the contractor. Check deadlines, scope of work, and responsibilities of both parties. Don't sign anything on the fly.
Planning a replacement? Check our article on how much window replacement costs and how to prepare for it to avoid surprises.
Your grant checklist - print it and get started
To make your life easier, I've prepared a simple list. Go through it point by point, and the whole process will go smoothly.
- Check your income: Calculate the income per person in your household and determine which grant threshold you qualify for.
- Find an auditor (optional): If you're aiming for comprehensive thermal modernisation, look for a certified energy auditor in your area.
- Choose an experienced window company: Ask directly if they have completed orders under grant programmes and if they will assist with documentation.
- Request a quote for windows with Uw ≤ 0.9 W/m²K: Ensure the offer includes windows that meet the requirements and the "warm installation" option.
- Submit your application to the relevant environmental protection fund: Either online yourself or with the help of an advisor.
- Await the signing of the grant agreement: ABSOLUTELY DO NOT PAY ANYTHING BEFORE THIS DATE!
- Sign the contract with the contractor and commission the window replacement.
- Collect all documents after installation: VAT invoice, work acceptance protocol, declarations of performance for the windows.
- Submit your payment request to the environmental protection fund.
- Enjoy your warm home and money in your account!
FAQ: Most frequently asked questions about window grants I hear from clients
In the Wingedas showroom, clients ask me a lot of questions. I've gathered the most common ones here. I answer briefly and directly, without mincing words.
💡 Check your windows with our online configurator — a quote in 60 seconds.