Are you FENSA registered?

Yes we are a FENSA registered company (30829) and new window/door installs will be certificated to prove that they comply with building regulations concerning energy efficiency and safety.

Can I visit a job in progress and/or take up recent references?

Yes absolutely we normally have 2-3 installs each week and have completed work in lots of roads within south and west London. You can also find some of our reviews on www.checkatrade.com and which? Trusted traders.

After my new windows and doors are installed what work will there be left for me to carry out?

New windows are fully painted and damage to the external cement work or internal plasterwork inside is made good by us, you may be left with the coloured paint/paper to re-apply over any new plaster.

What time do you start and finish each day and do you need me at home while the works are carried out?

Our installation teams start at 8am and finish around 4pm each day, we require access each morning and instructions for locking up at the end of each day.

Do you take away and dispose of the old windows and debris?

Yes we always take away the old windows and debris as part of the job.

Will my property be secure overnight while works are being carried out?

Yes we will always leave you secure by fitting the new or old sashes temporarily overnight if needs be, the windows may not be operational and may be a little draughty but will be secure!

What preparation do we need to make in advance of you arriving?

We will require some space around the windows and window coverings to be removed, if your property is within a restricted parking zone permits would be very much welcome. These details can be discussed and we can remove and refit window coverings or plantation shutters by arrangement.

If you draught proof and overhaul my existing sashes will they be painted or prepared for painting as part of the service?

No, the draught proof overhaul service is carpentry based and does not include preparing or painting the windows for decoration.

How long is the guarantee on new windows and doors?

We supply a 10 year guarantee which is insurance backed by IWA.biz. In the event of a problem you would call us first and in the unlikely event we had ceased trading IWA.biz would honour the guarantee and arrange for the works to be carried out.

Do you dust sheet the room for us?

Yes we fully dust sheet the room including polythene sheeting over the furniture and floor covering materials as required.

Are you insured?

Yes we have 5 million pounds public liability cover and 10 million pounds employers’ liability.

Are your staff employed or sub-contracters?

All our staff are fully employed by the company giving us total control over quality and the standard of work completed.

Contact us today >

  • Really friendly, reliable and efficient service. We had our windows replaced in several blocks and the same guy came each time, he was so tidy and the windows have transformed our house!

    ACTON, W3

  • Andy and his team did exactly what they said they would, when they said they would. They were a joy to have around and the result is even better than I hoped. Rear windows next!


  • Very happy with the service. We recommend A Sash Window Wizard to everyone needing help with their windows. Very good value for money.


  • Efficient service. It does make a difference-the house definitely holds heat better now. Professional and no fuss.

    EPSOM, KT19

  • Windows are fabulous-only wish I’d had them done ages ago!


  • We are really happy with our windows. The work was carried out with little disruption or fuss.

    EPSOM, KT17

  • Friendly, courteous, professional but above all came at the agreed time and carried out work meticulously to plan.


  • We are extremely pleased with the finished product.


  • Very professional job. So wonderful to find a company that delivers on its promises on time!


  • Extremely pleased with all aspects of the work.


  • All I can say is thank you very much Andy and staff. I have already recommended you to a friend.


  • Good value, well built product. Exemplary.


  • Reliable, friendly, professional. I have no hesitation in recommending ‘A Sash Window Wizard’ to other potential customers.