FENSA-accredited windows company for new windows in Mitcham, South London

If you are searching for a reputable and trusted local windows company for double glazing installations in Mitcham, Beddington, or Merton, then make Unique Windows your first port of call.

As one of South London’s premier window installation companies, we bring our discerning customers the very best double and triple glazing from the likes of Kommerling, Origin, Rehau, Solidor, Atlas, and Spitfire. Blending innovative engineering and design with stunning aesthetics, these products are considered some of the very best and most cutting-edge windows and doors on the market.

We provide both residential and commercial windows, doors, roof lanterns, and other double glazed products and our specialists offer a thorough and seamless service, from start to finish. Whether you would like new triple glazed windows to create a more contemporary look or you need traditional replacement windows for a period property, our team is here to help every step of the way. From choosing your new windows through to efficient installation and beyond, your new windows are designed for a lifetime of use.

Our windows come in a range of designs, colours, and styles to suit your property and personal taste.

Our products include:

  • uPVC windows
  • Aluminium windows
  • Sliding sash windows
  • Casement windows
  • Tilt and turn windows
  • Residence 9 windows
  • Bifold doors
  • Lanterns
  • Flat glass roofs

Our products will boost the value of your home by enhancing warmth, security, and aesthetic appeal.

Get a quote from Unique Windows today by calling 020 8770 7397.

Check out all of our windows, doors and roof lanterns we install




Lanterns & Flat Glass Roofs

Bespoke uPVC windows fitted near Beddington

Our made-to-measure uPVC windows are fitted each home’s character near Beddington, Mitcham, or Merton. Providing excellent energy efficiency, advanced uPVC windows will reduce heating costs and always exceed industry standards for security.

Our windows installation team is highly experienced and will always leave your property clean and tidy. You can relax in the knowledge that our friendly fitters and installation team will revamp your home and leave it looking spotless.

  • Kommerling: We can supply and fit the 070 Gold and C70 Gold ranges from Kommerling. These windows use Kommerling’s innovative lead-free Greenline technology so it offers exceptional performance. These windows are available in 44 woodgrain and colour finishes and have high-security multipoint locking and shootbolts.
  • Rehau: The Rehau Total70 uPVC range has a multi-chamber profile that is safe and secure, meeting PAS24 security standards. These windows are very easy to keep clean and have a multi-chambered system from improved thermal efficiency.

Enjoy luxurious living with CR0 double glazing or triple glazing

Here at Unique Windows, we believe in offering quality windows in Mitcham and installations at a fair price. Our windows experts have over 30 years of experience in the windows trade and have built a solid reputation for outstanding value and customer service. Our leading home improvements experts can give you advice and guidance regarding your double glazing or triple glazing at any time.

When you choose replacement windows, we understand that you will want to pick the right company for the job. Your home is likely to be your biggest asset, and our windows team cares about every detail – from the quality of the products we install to customer service and aftercare.

We are committed to offering the highest levels of service at every stage. As long-standing members of FENSA, you can expect premium products and unbeatable service.

Why choose replacement windows in Mitcham?

New windows in Mitcham play a central role in your property’s comfort, appeal, and security.

If your windows are old and tried, there are many benefits in investing in new ones:

  • Increased kerb appeal, so your windows dramatically improve the look of your property
  • Energy efficiency so your windows preserve energy and lower your fuel costs
  • Thanks to advancements in technology, new windows do not require much maintenance to keep them looking good
  • If you live near a busy road or over a flight path, new windows can provide excellent noise reduction
  • Increased home value because homebuyers are looking for energy-efficient glazing with innovative designs
  • Comprehensive guarantees so you can feel confident your windows have been designed and installed to last

Read our blog: How long should double glazing last?

Residence 7S Windows

No obligation surveys in :-

Very impressed with the service provided, from the initial consultation to the final installation, everything was dealt in a very professional way.


Amazing job, I really recommend Unique Windows (London). They fitted the new doors and removed the old ones, left the place looking as it was and this was all done within a week of getting the quote, amazingly fast and reliable service with quality trades people.


We had changed all the windows in the house. They look very smart and elegant. So much that I only had praises from my neighbours and friends. Unique windows did a fantastic job at a very competitive price. Very tidy, quick and efficient. Overall, an excellent customer service. I have already recommended Unique Windows to my neighbours and friends, and I believe they have contact this company already. I will certainly use them again.


Very pleased with our new doors and windows. The fitting is excellent and Unique Windows were able to accommodate a couple of non-standard requests. Price was fair and communication clear. I would use them again in future for the remainder of the windows on our house and recommend.


Our Wonderful Reputation