How do I choose the right windows for energy efficiency in my home?

mufaddalG

I'm looking to replace my old windows

tacpot12

You have a few options:

1. become an expert in windows/energy efficiency yourself (it might be useful in other ways, e.g. advising family or friends)
2. find someone who is an expert but doesn't sell windows (any friends or family members who are experts in enery efficiency?)
3. find a consultancy/architectural service that will recommend what you need (for a fee) 
4. find a window company you trust and accept their recommendation

The right answer depend on how bothered you are about the efficiency of the new windows and whether a hgh specificaion makes sense in relation to the rest of the building. There is no point having A++ windows if the roof still only has 100mm of insulation in it and you can't afford to upgrade this because you've sepnt all your money on new windows.

You should look out for firms that have a properly thoughout plan for how to install the windows in an energy efficient manner. Just filling gaps around the frame with any old expanding foam isn't good enough for a properly efficient installation, although if you don't want a super-efficient installation, there are expanding foams that are designed to be insulating rather than just gap-filling. 

FreeBear

tacpot12 said: The right answer depend on how bothered you are about the efficiency of the new windows and whether a hgh specificaion makes sense in relation to the rest of the building. There is no point having A++ windows if the roof still only has 100mm of insulation in it and you can't afford to upgrade this because you've sepnt all your money on new windows.

A well fitted A+ window will out perform a poorly installed A++ window.

Also, don't get let the salesman tell you their A++ frames are better than everyone elses and save loads of energy. What is more important is the glazing units and fitting - Frames only account for a small area, so contribute (relatively) little to heat loss.

But I smell a rat - Five minutes after the OP posts his query, the spammer plugs his company. Methinks they are one and the same.

Albermarle

But I smell a rat - Five minutes after the OP posts his query, the spammer plugs his company. Methinks they are one and the same.

Plus the query was rather brief to say the least.