We live in a detached house in Debrecen, most likely built in the late 60s or early 70s — the kind of era when insulation was minimal, energy efficiency wasn’t really part of construction standards, and heating costs were simply “part of life.” Antal bought the house about fifteen years ago. It was already in bad shape, but the price was unusually low. At the time, he could only afford to fix the most urgent structural and electrical problems. Everything else had to wait, usually until something broke again.
As energy prices kept rising in recent years, the lack of insulation became impossible to ignore. Winters felt colder inside than outside, and in the summer the house overheated within hours. We both realized that continuing with small, ad-hoc repairs would never make the house truly livable — and certainly not sustainable.
So this summer, we decided to take on a major renovation focused specifically on improving the home’s energy performance. The goal wasn’t just aesthetics or comfort; it was about finally reducing heat loss, lowering our consumption, and making the house more resilient long-term. Proper insulation felt like the most meaningful “green” investment we could make.
Although we hired professionals for part of the work, we were deeply involved in the project ourselves. We removed old panels, prepared wall surfaces, and handled a lot of the manual labour to lower costs and maintain control over quality. It also allowed us to understand, step by step, how our home actually functions energetically — where the heat escapes, where moisture collects, and which structural elements are beyond saving.
The process was far from easy. For weeks, our house had no real windows or doors. Summer storms came through the temporary coverings. Dust covered everything. We cooked outside, slept in one room, and worked from makeshift desks. At moments, it felt like camping inside our own home. But in a strange way, participating in the work made the experience meaningful. We knew exactly why we were doing it.
The professionals we worked with had mixed reliability. Some were excellent — knowledgeable about sustainable materials, patient when explaining the details, and committed to doing things properly. Others were harder to coordinate: last-minute cancellations, vague timelines, or shortcuts we had to push back against. Being present every day allowed us to make sure the green aspects of the renovation weren’t compromised for convenience.
Now that the insulation is complete, the difference is dramatic. The house keeps warmth significantly better, the rooms no longer have cold corners, and even on hot days, the indoor temperature stays stable much longer without cooling. We haven’t received our full winter bill yet, but we’re already seeing noticeable reductions in energy use.
Beyond lower costs and better comfort, the project changed the way we think about our home. Insulation isn’t glamorous, but it is one of the most impactful things individuals can do to reduce their environmental footprint. For us, it became a very tangible way to align our daily life with the values we talk about — sustainability, responsibility, long-term thinking.
Our advice: Renovations can be exhausting and messy, especially when you’re living inside the project. But if you’re able to, take part in the work yourself. It gives you control, it teaches you how your home really works, and it makes the green upgrades feel like a shared accomplishment — something you’ve literally built with your own hands.