Cost to fit replacement sash windows
Discussion
Looking at either having secondary glazing on our existing sash windows or replacing with new units. The secondary glazing is not cheap as it effectively means re-engineering the windows so that they can still open and close as well as obviously draft proofing etc. So…now looking at replacement sash windows, luckily we’re not in a listed building but its an old house. Some of the existing windows have interior shutters etc.
Does anyone have any idea/experience of what fitting might cost ? For a 1.7m X 1m replacement sash I am being quoted the best part of £2k for fitting by the company supplying the windows. Ground floor with easy access etc
Does anyone have any idea/experience of what fitting might cost ? For a 1.7m X 1m replacement sash I am being quoted the best part of £2k for fitting by the company supplying the windows. Ground floor with easy access etc
I had 7 new double hung sliding sash windows made of similar size just before lockdown. Double glazed, 'duplex' system with spiral balances, shop primed
They worked out around £750 each and I fitted myself (not difficult - I did them from inside as we have rebated jambs).
Might give you some idea. You could work out the installation cost roughly by adding an hourly rate plus a bit for sundry consumables.
Of course inflation has been rampant since then and you can probably add at least +30%
PS: 2k for one window is ridiculous - they don't want it
They worked out around £750 each and I fitted myself (not difficult - I did them from inside as we have rebated jambs).
Might give you some idea. You could work out the installation cost roughly by adding an hourly rate plus a bit for sundry consumables.
Of course inflation has been rampant since then and you can probably add at least +30%
PS: 2k for one window is ridiculous - they don't want it
Just had mine quoted. For simple 'square' windows of a similar size to your I was quoted about £1400 fitted. For a smaller window with a triangular peak, about £1500. I have some smaller squarish windows which are cheaper. In all, for six windows it is costing £7.8k including fitting.
Rehau ones have gone up in price recently. The quote was about 50% more using Rehau, so I have gone with another company. When I am back home this evening, I will find the company and link it here.
These are for sliding sash windows, with external Georgian bars, coloured, wood grain exterior and plain white interior. Managed to finally get approval in a conservation area to install these windows after a two year 'battle' with planning at our local council. All uPVC, not wood.
Rehau ones have gone up in price recently. The quote was about 50% more using Rehau, so I have gone with another company. When I am back home this evening, I will find the company and link it here.
These are for sliding sash windows, with external Georgian bars, coloured, wood grain exterior and plain white interior. Managed to finally get approval in a conservation area to install these windows after a two year 'battle' with planning at our local council. All uPVC, not wood.
Edited by mike9009 on Friday 17th March 13:02
I had our wood sash windows converted to double glazing and refitted in 2017 then it was £900 per sash including draft proofing and renovating the casement.
Essentially they took out the individual panes and cross bars, fitted a single double glazed panel back in and the glued the cross bars back in to keep the appearance of single panes.
Essentially they took out the individual panes and cross bars, fitted a single double glazed panel back in and the glued the cross bars back in to keep the appearance of single panes.
simon_harris said:
I had our wood sash windows converted to double glazing and refitted in 2017 then it was £900 per sash including draft proofing and renovating the casement.
Essentially they took out the individual panes and cross bars, fitted a single double glazed panel back in and the glued the cross bars back in to keep the appearance of single panes.
Would you mind sharing who did the work ?Essentially they took out the individual panes and cross bars, fitted a single double glazed panel back in and the glued the cross bars back in to keep the appearance of single panes.
I’m just in the process of getting quotes and could do with prices being sanity checked.
We need 7 windows, half are 2.4 metres by 1.4 meters, upper floor slightly smaller.
We already have scaffolding up around the entire house.
Windows coming in range of £770 to £940 (each), simple UPVC sash but some upgrades such as thin centre bar, brass look hardware, thermal glass.
Fitting ~£6,300
Estimated at “up to” £900 a window.
Basically one and half days, 2 people, per window.
Remove old, box out gap (as the existing were recessed around 80mm each side).
This is from experienced general builders (installation will be FENSA certified), who is doing some roofing and stone work currently on site (so has had chance to thoroughly examine existing windows).

We need 7 windows, half are 2.4 metres by 1.4 meters, upper floor slightly smaller.
We already have scaffolding up around the entire house.
Windows coming in range of £770 to £940 (each), simple UPVC sash but some upgrades such as thin centre bar, brass look hardware, thermal glass.
Fitting ~£6,300
Estimated at “up to” £900 a window.
Basically one and half days, 2 people, per window.
Remove old, box out gap (as the existing were recessed around 80mm each side).
This is from experienced general builders (installation will be FENSA certified), who is doing some roofing and stone work currently on site (so has had chance to thoroughly examine existing windows).
Wilmslowboy said:
I m just in the process of getting quotes and could do with prices being sanity checked.
We need 7 windows, half are 2.4 metres by 1.4 meters, upper floor slightly smaller.
We already have scaffolding up around the entire house.
Windows coming in range of £770 to £940 (each), simple UPVC sash but some upgrades such as thin centre bar, brass look hardware, thermal glass.
Fitting ~£6,300
Estimated at up to £900 a window.
Basically one and half days, 2 people, per window.
Remove old, box out gap (as the existing were recessed around 80mm each side).
This is from experienced general builders (installation will be FENSA certified), who is doing some roofing and stone work currently on site (so has had chance to thoroughly examine existing windows).
If they're taking a day and a half to fit a window they're not very experienced window fitters (or they're trying to justify their labour rate). My guys would be 2-3 days to fit 7 assuming full rip out and rebuild. Total price isn't ridiculous depending on the window you're getting but splitting out the material and labour cost should get it cheaper, and it's not. The labour is v expensive.We need 7 windows, half are 2.4 metres by 1.4 meters, upper floor slightly smaller.
We already have scaffolding up around the entire house.
Windows coming in range of £770 to £940 (each), simple UPVC sash but some upgrades such as thin centre bar, brass look hardware, thermal glass.
Fitting ~£6,300
Estimated at up to £900 a window.
Basically one and half days, 2 people, per window.
Remove old, box out gap (as the existing were recessed around 80mm each side).
This is from experienced general builders (installation will be FENSA certified), who is doing some roofing and stone work currently on site (so has had chance to thoroughly examine existing windows).
My brother in law fixes and restores them https://www.facebook.com/share/1BhSFox1He/
ssray said:
My brother in law fixes and restores them https://www.facebook.com/share/1BhSFox1He/
Thanks we looked at restore, cost to pull out, refurb, add new glass and refit/ paint - was more than the cost to buy new uPVC windows and have them fitted.technodup said:
If they're taking a day and a half to fit a window they're not very experienced window fitters (or they're trying to justify their labour rate). My guys would be 2-3 days to fit 7 assuming full rip out and rebuild. Total price isn't ridiculous depending on the window you're getting but splitting out the material and labour cost should get it cheaper, and it's not. The labour is v expensive.
Thanks for the guidance, might get 2nd estimate to fit.Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff


