Secondary Glazing Knightsbridge

City Sound manufactures its own secondary glazing windows. We specialise in aluminium frames only, powder-coated standard white.  This can be customised to match existing décor if necessary.

Call us today for a free quotation anywhere in Knightsbridge.

Over 129 4.9-Star Reviews

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Why choose us

Working in this industry for over 50 years makes us one of the oldest existing specialist companies.  We have built a very strong reputation for being knowledgeable and transparent with excellent quality and after-sales service.

We are a family-owned company focused on every client and their specific needs.

08. Commercial secondary glazing (Sliding widows) fitted. Glazed with thick acoustic glass for noise reduction (Sloane Square, London)

We provide Secondary Glazing in Knightsbridge With The Strongest Guarantee

If you’re looking for secondary glazing in Knightsbridge then look no further!

We provide you with the highest quality, well built secondary glazing – guaranteed!

Whether you have thermal insulation problems or pesky, loud neighbours, our secondary glazing solutions will alleviate all of your woes!

Our Certified Professional Secondary Glazing Fitters are At Your Disposal

At your appointment time, our certified secondary glazing fitters will arrive with everything that they will require to do the job as swiftly and professionally as possible!

All of our fitters use methods that are in accordance with industry standards. This in turn helps to significantly decrease the risk of the secondary glazing not doing its job.

Our goal is to give you long-lasting comfort as well as peace. The installation of secondary glazing will greatly reduce noise as well as help with thermal insulation. 

07. Commercial secondary glazing (Sliding widows) fitted. Glazed with thick acoustic glass for noise reduction (Sloane Square, London)

Secondary Glazing FAQ’s

Does Secondary Glazing actually work?

Secondary glazing is an excellent, cost effective way of reducing the amount of external noise entering your home through your current windows. This simple and cost-effective treatment can increase sound insulation. This means your home will be quieter and you will sleep more peacefully. In other words, yes, it does work! Secondary glazing is also extremely effective for thermal retention and draught exclusion.

Does Secondary Glazing add value to my house?

Secondary glazing can greatly increase your home's value. If your home is older and not performing well, it may be worth considering investing in new glazing options. This will increase its appeal to potential buyers as well as allow it to sell at a higher price. Selling a property that is quiet and warm adds to the appeal.

If my Secondary Glazing breaks, who can fix it?

The Glazier who installed your secondary glazing should have a well-documented warranty on their work. Meaning they should be able to fix it for you. We here at City Sound proud ourselves on our craftmanship as well as the quality of our products, if any problems arise, please do not hesitate to contact us.

Secondary Glazing for Listed Buildings Knightsbridge

A building listed under the law is protected and Listed Building Permission may need to be obtained before any modifications can be made. Not all repairs will require consent. Please get in touch with your local authority and make enquiries as to whether you need permission to install secondary glazing.

Sash Windows (Vertical sliding) Knightsbridge

Sash windows, also known as “Vertical sliding windows”, are the most popular window type. Secondary glazing sash windows are also very popular.

Our sash windows consist of two panels, one at the top and one at the bottom. They are counter balanced with pre-tensioned springs that hold the panels’ weight. The window can be opened in any direction and the panels can be operated easily.

Horizontal Sliding Windows Knightsbridge

Horizontal sliding windows, which can be made side to side, are the most versatile style. They can be manufactured with either 2, 3, or 4 sliding panels. This type of secondary glazing matches perfectly with Crittal windows. Individual sliding panels can slide effortlessly, providing unimpeded access to external windows.

All of our windows sections are made from aluminium and powder-coated white. You can customize frames to match your decor with a different colour or finish.

Fixed Lift Out Knightsbridge

Fixed lift out windows are an alternative to screw-fixed units. They have a removable glass panel that can be lifted from the master frame and accessed through the external windows.

This type of window is used for external windows that are rarely used, or in offices with air conditioning where cleaning between windows is necessary.

Casement (Hinged) Secondary Glazing Knightsbridge

Our hinged (casement) windows can be side- or top-hung. This design allows easy access to outer windows or doors.

This type of window is popular in hospitals, surgery rooms, and laboratories because it has minimal dust ledges, tight seals, and is easy to clean.

Things to do in Knightsbridge

Photo Courtesy of: Harrods


Address: 87-135 Brompton Rd, London SW1X 7XL, UK

Main Phone: 020 7730 1234

Visit the Harrods Website

View Harrods on Google

Latitude: 51.4994055

Longitude: -0.1632344

Did you know that Harrods rates 4.4/5 based on 63343 total ratings?

Reviews for Harrods
John Awty

John Awty


a month ago

Vast range of products. Well presented. Staff on entrances and exits were very polite and welcoming. Not overcrowded and a pleasant shopping experience. Not all products seemed good value for money but the Bentley brigade will not notice.

Jill Nicholson

Jill Nicholson


2 months ago

An amazing store. Choice and quality mind boggling. Spotlessly clean, staff so helpful. We chose to eat in the coffee shop knowing the prices so not complaining but £10 for a slice of cake is really getting too much.

Rayaan Shaikh

Rayaan Shaikh


a month ago

Publicly renowned. A shopping experience in itself. Unfortunately the cafe does not live up to the rest of Harrods. The chai latte was laced with enough cinnamon to form a tree and the consistency was thin, almost water like. Not the standard expected and would only just pass as a cafe Nero item. On the other hand, the honey cake and the truffle were divine. Not all bad then

Photo Courtesy of: Yee Wang

London Oratory

Address: Brompton Rd, London SW7 2RP, UK

Main Phone: 020 7808 0900

Visit the London Oratory Website

View London Oratory on Google

Latitude: 51.4964848

Longitude: -0.1700127

Did you know that London Oratory rates 4.7/5 based on 956 total ratings?

Reviews for London Oratory
Maria R

Maria R


a month ago

It s nice that they offer daily confession but the Priest I have met as so many I have met in the last few years in different Catholic churches don't care about the people really. Just about time and admin stuff. It became a job for them. And they are dead inside. I wanted to confess waited 20 min just for the Priest to run off as it was 5 minutes past the time. He even just looked at me cold and said something like sorry too late. It s really sad. There is no Holy Spirit present anymore in most Priests. For most it s just a job. It s sad but one big reason the Catholic Church is declining like crazy.




a year ago

Great space

S. K.

S. K.


3 weeks ago

In my opinion one of the most beautiful RC churches in UK. Magnificent architecture and an outstanding choral sound in the true catholic tradition.

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