Retrofitting Lintel in solid brick wall

[popplestones]

I am in the process of buying a house. It does not have cavity walls and a survey has found no lintels above the UPVC windows (max1.2m width). Apparantly former owner had wooden windows replaced with UPVC but didn't realise the woodn windows were actually load bearing.
What recommendations do you have for fitting lintels above windows in this case? Preferably without too much damage internally.
Thanks.

 

[pred]

You will need strong boys!!

 

[jockscott]

You will need strong boys!!

What if the OP only has girls?

 

[pred]

You will need strong boys!!

What if the OP only has girls?

If the OP doesn't know what strong boys are he should leave it to a builder, IMO

 

[JBR]

You will need strong boys!!

What if the OP only has girls?

I've met some very strong girls, believe me!

 

[pred]

You will need strong boys!!

What if the OP only has girls?

I've met some very strong girls, believe me!

Do they clip on the top of accro props??

 

[JBR]

You will need strong boys!!

What if the OP only has girls?

I've met some very strong girls, believe me!

Do they clip on the top of accro props??

The ones I'm thinking about don't need acrow props!