"I had Wandsworth Sash Windows replace…"

I had Wandsworth Sash Windows replace seven sash windows in my house – five at the front including a bay on the ground floor, and two more elsewhere. The whole process was really straightforward and easy. The work was done by Nishan and Bipi who were brilliant from the moment they arrived. They had a long drive to get to me in Heathfield every day, but they were always cheerful and positive. They worked incredibly hard and barely took a break – even when I tried to offer them tea, they just smiled and carried on.

The windows look amazing and you can really see the quality in the finish. I’ve already had a few neighbours comment on how nice they look from the outside, which says a lot. It’s made a real difference to the house. You can tell Nishan and Bipi really care about doing things properly, and they left everything clean and tidy when they were done.

Overall, I’m really happy I went with Wandsworth Sash Windows. Great team, great windows, and a job really well done. Would definitely recommend them to anyone thinking about getting their sash windows replaced. Solid five stars from me.

"These guys really know their stuff!!"

These guys really know their stuff!!! When they arrived the technicians clearly explained their method of working and what they were going to do. I really appreciated that because replacing windows is not something I have ever done before so it was all completely new to me. I was really reassured and the technicians did the job so well. I did spot a couple of bits that I thought needed a bit of extra work which I pointed out to them and they happily dealt with for me.

"John and Shaun"

John and Shaun - fantastic work.

WSW replaced 8 sash windows, two of which needed extensive repairs to the box just shy of a full box replacement. Despite the challenge, John and Shaun did a great job and the results look as good as new. Excellent team and I can't recommend them enough.

"Great process overall"

Great process overall. Professional with good documentation throughout.
The team that installed were very professional, tidy and did a fantastic job. Window looks great.

"I had two rear casement windows fitted…"

I had two rear casement windows fitted and, despite a slightly longer lead time than expected, I am very satisfied.

The windows themselves are excellent quality and have made a big difference to the comfort and appearance.

There was a small issue I noticed just after installation, but I was really impressed with how professionally and quickly the team responded, it was dealt with without any fuss and to a high standard. It’s clear the company genuinely cares about delivering a great service and standing by their work. The installation was tidy. I’d be happy to use Wandsworth Sash Windows again.

"Help years later"

I had 3 windows fitted by WSW a few years ago. Recently I had a problem where one of the windows was difficult to operate up and down as has normally been the case in the years since the window was fitted.


I knew I had a guarantee with WSW so I contacted them and asked for their help. There was no wrangling or quibbling, they helped me right away and got someone booked in to fix it for me.


The fix only needed 10 minutes on site but it is beyond my capabilities to know what is best to do. I’m glad they were there to help and it’s impressive the service they are still willing to provide many years after I had my windows fitted. It reduces my stress knowing that they can do that for me.

"Great work"

Had four new front sash windows installed by Wandsworth Sash Windows and couldn’t be happier with the result. The quality of the windows is excellent, and they’ve really improved both the look and warmth of the house. Jon and his colleague were fantastic — professional, skilled, and clearly knew exactly what they were doing. The whole process was smooth from start to finish. Highly recommend!

"What a professional and a reliable team…"

What a professional and a reliable team of people.
I’d recommend Wandsworth sash windows and Matt to anyone and everyone who needs quality windows.

"I had a mixed experience with…"

I had a mixed experience with Wandsworth Sash Windows. The craftsmanship was good, and the staff helpful, but there were small issues like paint finishes that needed fixing later. They did address the concerns, but overall, their service was not flawless. It’s decent, but I wouldn’t call it perfect. 3 stars.

"5 Star experience with Wandsworth Sash Windows"

I had Wandsworth Sash Windows come to my house in Tooting, South West London, to fit four new windows, and I have to say, I’m really happy with how everything turned out. Two of the windows were just new timber sashes fitted into the old box frames, and the other two were complete new box sash windows with timber double-glazed sashes. The windows look fantastic, and they’ve already made a big difference in keeping the house warmer and more comfortable.

The fitter, Vasile, was great. He worked hard, was super tidy, and clearly cared about doing a good job. You can tell he takes pride in his work because everything was done to such a high standard. He cleaned up really well after himself, and it was nice to see someone pay attention to the little details. Honestly, it’s rare to find someone with that kind of attitude, and it made the whole process a lot easier.

James in the office was also really helpful and always got back to me quickly whenever I had a question. He made sure everything went smoothly, and it felt like the company really cares about their customers, which isn’t always the case with tradespeople.

The windows themselves are top quality — they open and close perfectly, and the finish on the timber is really nice. The house feels a lot warmer, and the noise from outside has definitely gone down too, which has been a nice bonus. I’m sure the better insulation will help with energy bills as well, so it feels like a worthwhile investment.

I was so pleased with the whole experience that I’ve already told my neighbours about Wandsworth Sash Windows, and I wouldn’t hesitate to recommend them to anyone thinking about getting new windows. From start to finish, everything was straightforward, and I felt like I was in good hands the whole way through.

A big thank you to Vasile, James, and the rest of the team for making the process so easy. The house looks great, the windows are brilliant, and I’m really glad I chose them. Definitely a 5-star experience!