When replacing windows, the key question is whether to choose double or triple glazing. This directly affects insulation, noise and energy costs.
What’s the difference
Double glazing – 2 panes, 1 chamber
Triple glazing – 3 panes, 2 chambers
More layers = better insulation.
Double glazing
Pros:
- Lower cost
- Lighter construction
- Suitable for well-insulated apartments
Cons:
- Lower thermal performance (Ug ~1.0–1.1)
- Less noise reduction
- Cooler near windows in winter
Triple glazing
Pros:
- Excellent insulation (Ug ~0.5–0.7)
- Reduced heat loss
- Better noise reduction
- More comfort in winter
Cons:
- Higher cost
- Heavier
What to choose in Tallinn
- Apartment → double is usually enough
- House / older building → triple recommended
- Noisy area → triple
- Saving on heating → triple pays off
Conclusion
Double glazing is a budget-friendly option.
Triple glazing provides better comfort, silence and energy efficiency.
In Tallinn’s climate, triple glazing is usually the better long-term choice.