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J Hope – Islington, N7 (June 2014)

"I just wanted to say thank you. The doors/windows look great. Your team was very efficient and really tidied the place up and left everything in immaculate condition so we were [...]

A Paterson – Camden, NW5 (May 2014)

We been contracted twice by this customer. In total we’ve completed the comprehensive fitting 1 double glazed sash replacement and draught proofed 5 sash windows. What did the customer think? We [...]

S Landels – Wanstead, E11 (December 2013)

“Such a relief to deal with a professional and friendly company with a quality product. Given honest and clear advice of what I could expect. The whole team was great to [...]

J Muller – Camden, NW6 (November 2013)

“I am very pleased with my sash windows from Core Sash windows. From customer service, to the product to the price! The technicians were very neat and tidy. The product is [...]

T&J Williams – Tower Hamlets, E17 (October 2013)

“Excellent. Clear advice, no pressure and an excellent product! Great fitter – friendly and helpful.”

J Voss – Lambeth, SW2 (June 2013)

“We are very pleased with our new windows – it’s the coldest June ever so we had to put on the central heating and every room was noticeably warmer than usual. [...]

T Jones – Middle Lane, N8 (March 2013)

“We’ve hired Core Sash Windows on two occasions to upgrade old sash windows at our Victorian property in Hackney. We started with our bedroom windows and went on to do the [...]

K Harrison – Hackney, N1 (February 2013)

“Thanks guys for the great job you did last week. Our double glazed windows in the bedrooms look amazing, it feels warmer, quieter and there’s no condensation on windows! Also people [...]

A Walpole – Islington, North London (January 2013)

“We were very happy with the installation. A prompt, friendly and efficient service and our new windows look great.”

I Foster – Muswell Hill, N10 (November 2012)

“The windows are now finished and we are so happy with them – they look absolutely beautiful and we’ve noticed the difference in terms of sound and heat insulation – and [...]

C Marshall – Beck Road, E8 (May 2012)

“We’ve now got windows to be proud of – thank you. I’ve been really impressed not just by the quality of workmanship and attention to detail, but all the thought that [...]

P Parkinson – Allen Road, N16 (April 2012)

“Having suffered many times over the years from unreliable, shoddy and expensive buildings maintenance workmanship in London, Sean and Dan have completely restored my faith in the business, and in human [...]