Made about 7.7 miles from St John’s Wood

Secondary glazing in St John’s Wood

Secondary glazing for St John’s Wood homes, made to measure about 7.7 miles from our workshop in N18 and fitted by our own team across NW8.

Get a St John’s Wood quote 020 8803 8004

Covering NW8 and the surrounding streets

White sash windows with arched top light in a brick wall

10 yearsinsurance-backed guarantee

Local factory & showroomUnit G, 1 Anthony Way, London N18 3QT

Call the local team020 8803 8004

Email usinfo@adawindows.com

FENSA & TrustMark10-year insurance-backed guarantee

Local advice

Secondary glazing for St John’s Wood homes

Around St John’s Wood you will mostly find stucco villas, mansion blocks and converted period flats. For flats where the lease or freeholder prevents changing external windows, secondary glazing fitted inside is usually the simplest way to reduce traffic noise and heat loss.

In 1930s bays, secondary glazing can follow each facet of the bay or span across it, so we measure carefully around radiators, sills and curtain tracks. Older cottages with small leaded or timber windows can keep their character with discreet secondary panels, hinged or removable so the originals stay accessible for maintenance.

Much of the area falls within the St John's Wood conservation area, so Westminster City Council will expect any new windows to match the originals closely. In mansion blocks the managing agent or freeholder usually has to agree first; we can supply drawings and specifications to help with that.

Secondary glazing is a discreet second window fitted on the inside of your existing windows, leaving the originals untouched. It suits listed buildings, conservation areas, flats where external windows cannot be changed, and anyone wanting to cut noise and draughts without replacing period windows.

Keeps original windows in place
Reduces draughts and outside noise
Panels open or lift out for cleaning

All about our secondary glazing More about St John’s Wood

Questions from St John’s Wood

Do I need planning permission for secondary glazing in St John’s Wood?

Much of the area is in the St John's Wood conservation area, so Westminster City Council expects close matches to original windows; we check before quoting and help with freeholder consent for flats. Secondary glazing is fitted internally, so it does not usually need planning permission or Building Regulations approval, but listed buildings may need listed building consent first.

How soon can you fit secondary glazing in St John’s Wood?

Lead times vary by product and workload — confirmed with your quote. Being about 7.7 miles from our factory makes surveys, fitting days and aftercare visits easy to arrange.

Is secondary glazing allowed in listed buildings in St John’s Wood?

Secondary glazing is generally seen as less intrusive than replacing original windows, because it sits inside and is reversible. However, listed building consent may still be required, so speak to the council's conservation officer before work starts. We can provide product details to support your application.

Can I see samples before I decide?

Yes. Our showroom is at Unit G, 1 Anthony Way, London N18 3QT (Mon–Fri 8am–5pm), about 7.7 miles from St John’s Wood. We can also bring samples to your home in St John’s Wood at the free survey.

Our work

Secondary glazing we make and fit

Spread the cost

New windows now.
Pay over 1–5 years.

Finance on orders from £1,000 over 1–5 years, or our standard terms of 50% / 25% / 25%.

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Ada Windows Limited is an introducer appointed representative of Ideal Sales Solutions Ltd T/A Ideal4Finance. Ideal Sales Solutions is a credit broker and not a lender (FRN 703401).