A good orangery isn’t just about adding space—it’s about making that space comfortable enough to use every day. People usually choose an orangery because they want more light than a standard extension, while still keeping a proper, insulated “room” vibe compared with older-style conservatories.
The first comfort factor is the roof build-up. Many modern designs use a more solid perimeter roof with a roof lantern or roof lights. That combination can be brilliant: more insulation at the edges and daylight where it matters. But it only works if the insulation and finishes are properly detailed. Ask what’s included in the roof build-up and how ventilation is handled—especially if the space is linked to a kitchen or dining area.
Next comes glazing. The big mistake is assuming “double glazing” automatically means comfortable. If you have lots of glass facing strong sun, solar control can be the difference between a usable space and a sweaty one. In EU markets with hotter summers, solar control and shading strategies often get discussed earlier in the process. In the UK, it can still be presented as an optional upgrade, so it’s worth raising it yourself if your layout needs it.
Doors are a major part of the feel too. Large openings look amazing, but they need the right thresholds and hardware to stay smooth over time. If you want that modern look with minimal step, ask how the threshold handles weathering and drainage. If someone can’t explain it clearly, that’s a warning sign.
Finally, define what “finished” means. Some quotes include plastering, electrics, flooring, lighting, and making good; others stop at the shell. This is where budget surprises are born. Get a simple written list of inclusions and exclusions and you’ll avoid the classic “I thought that was included” moment.
For a quick budget reality-check before you start comparing installers, you can build a rough estimate using the Double Glazing Cost Calculator. It’s a straightforward way to compare like-for-like and spot when a quote is missing key elements.
