How to Keep Your Conservatory Warmer: The Role of Glass and Sealed Units

A grandad holding a child and a playful dog in a conservatory setting
A conservatory that is freezing in winter and roasting in summer ends up as a room nobody uses. More often than not the glass is doing the heavy lifting behind that, for better or worse. Get the glazing right with a conservatory glass repair and the space becomes usable all year. Here is how the glass affects the temperature and what you can do about a conservatory that never feels comfortable.

Why is my conservatory so cold?

The most common reason is heat escaping straight through the glass. If the sealed units are old, single glazed or have lost their seal, they let warmth out quickly and cold radiate in. A conservatory with tired or failed glazing will always struggle to hold its temperature no matter how much you heat it. Draughts around worn seals make it worse.

Does the type of glass really make a difference?

It makes a big difference. A modern sealed unit traps a layer of insulating gas or dry air between the panes, which slows the heat moving through. Upgraded glass can go further with coatings that keep warmth in during winter and reflect heat away in summer. The result is a space that stays closer to the temperature of the rest of your home rather than swinging from cold to hot.

Will fixing the glass stop the summer heat too?

It helps a lot. The same qualities that keep warmth in during winter also cut down the glare and heat build up in summer. Glass with a solar control coating reflects a good deal of the sun’s heat before it gets in, so the conservatory does not turn into a greenhouse on a hot day.

What can I do to make my conservatory warmer?

If the space never feels right, the glazing is the place to start. The usual steps are:
  1. Check for misted or failed sealed units, which have lost their insulating value, and replace them.
  2. Renew worn seals and gaskets to stop draughts around the frames.
  3. Consider upgraded units with modern coatings for better all year comfort.
None of this means rebuilding the conservatory. In most cases it is a matter of putting right the glass that is letting you down.

Should I do this before winter?

It is worth sorting before the cold sets in, so you get the benefit through the season when you notice it most. Failed units and worn seals will not fix themselves and they tend to feel worse as the temperature drops. Sorting the glass while the weather is mild means the room is ready when you actually want to use it.

Make your conservatory a room you use again

If your conservatory runs cold or overheats and you are anywhere in Rutland, Oakham, Stamford, Uppingham, Melton Mowbray or Corby, Chris Triggs can check the glazing and replace the units that are letting the heat out. There is no call out fee, so you can find out what would make the difference before deciding anything.
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