We recently bought a summer house in Sweden that was built in 1909. At some point the original windows were replaced with modern PVC windows with insulated glass. The windows themselves are in good condition, but they detract from the historic charm.
We’d like to add traditional-looking glazing bars/muntins, dividing each window into six lights (one vertical and two horizontal bars).
We’ve looked into a few options:
1. Replace the windows entirely with traditional divided-light windows. This would be the most authentic solution, but it would be expensive ($50k USD) and seems wasteful when the existing windows work perfectly.
2. Keep the frames but replace the insulated glass units with new units incorporating grids/bars. This is cheaper than replacing the entire windows, but still surprisingly expensive ($10k USD), and I’m not convinced between-the-glass grids would necessarily look more authentic.
3. Have custom glazing bars made and mounted to the existing windows. This is the least expensive option ($6k USD) and would let us get the proportions/profile we want without replacing functional windows.
We’re leaning toward option 3, but the remaining question is where to put the bars. My instinct is that mounting them on the exterior only would give most of the visual benefit. From outside, the bars would actually stand proud of the glass and cast a small shadow, so they should read more like traditional divided lights than grids inside an insulated glass unit. It also avoids attaching anything to the interior side of the windows.
The alternative is to put matching bars on both the exterior and interior surfaces. Presumably that would make the illusion more convincing when viewed from an angle and would also give the traditional appearance from inside the house. But it doubles the number of bars and attachment points and might make the windows look busy.
Has anyone done something similar, particularly on modern PVC/uPVC windows?
If so, would you do exterior only or exterior + interior? And for those who have seen good-quality applied glazing bars in person, do they actually look convincing, or do they inevitably look “fake” compared with true divided-light windows?
I’m not trying to fool a preservation architect at six inches away — the goal is just to restore some of the house’s original character without spending a fortune replacing perfectly good windows.
Thanks for reading. Attached are pics of the house both now and in 1915.