Leafy North London · London
Secondary Glazing & Windows in Barnet
From the Arts and Crafts homes of Hampstead Garden Suburb to the substantial detached houses of Totteridge, Mill Hill and Finchley, Barnet is North London at its leafiest. We upgrade its period and family homes while keeping their distinctive character.
- FENSA
- Which?
- CERTASS
- TrustMark
Your local specialist in Barnet
Barnet is North London's largest borough and one of its greenest, known for the internationally significant Arts and Crafts housing of Hampstead Garden Suburb, the semi-rural mansions of Totteridge and Mill Hill, and the comfortable interwar and Victorian family homes of Finchley, Whetstone and East Barnet.
Hampstead Garden Suburb in particular is a designated conservation area with exacting controls on external alterations, where secondary glazing is the ideal way to add warmth and quiet without changing the carefully composed elevations. Elsewhere in the borough, its wider streets and larger plots suit a full range of upgrades.
We fit discreet secondary glazing for the protected homes, and A-rated windows, elegant doors, conservatories and orangeries for the borough's many unrestricted properties.
Neighbourhoods & postcodes we cover
Barnet architecture
Matched to how Barnet was built
We tailor every installation to the period homes that define Barnet.
Arts and Crafts homes
Hampstead Garden Suburb's homes have carefully composed casements and leaded lights; bespoke secondary units add comfort while leaving the celebrated elevations untouched.
Interwar detached & semis
Finchley and Mill Hill's substantial 1930s homes, with their bay windows and metal casements, gain warmth and quiet from tailored secondary glazing.
Victorian & Edwardian villas
The borough's older villas take slim sliding units matched to their sash proportions, restoring warmth without altering the timber.
Conservation & listed homes
Upgrades that respect Barnet's planning rules
Barnet's best-known conservation area is Hampstead Garden Suburb, one of the most tightly controlled in the country, alongside Mill Hill and Totteridge. Secondary glazing's reversible, internal design means it usually needs no planning permission and is favoured where external change is restricted.
Up to 75%
less heat loss through your original windows
Up to 80%
less traffic, rail and aircraft noise
Since 1973
family-run, FENSA-registered and fully guaranteed
Recent local work
Projects across Barnet
A snapshot of the kind of homes we help across the borough.
Hampstead Garden Suburb, NW11
Bespoke units behind the leaded casements of an Arts and Crafts home
Totteridge, N20
Secondary glazing to a substantial detached home on a semi-rural lane
Finchley, N3
Discreet glazing to the bay windows of a 1930s semi
What we install
Our services in Barnet
A complete range of home improvements, expertly fitted and fully guaranteed.
Also in Barnet
Opening up the back of your Barnet home?
We also design and fit made-to-measure aluminium bi-fold doors across Barnet — slim frames, wide spans and year-round warmth for kitchens, extensions and garden rooms.
How it works
From first call to aftercare
- 01
Free Barnet survey
A specialist surveyor visits, measures each window and recommends the right system for the period and planning context.
- 02
Design
We design discreet units matched to your sightlines, with acoustic, thermal or security glass to suit.
- 03
Manufacture
Every panel is made to measure to the exact dimensions of your original windows.
- 04
Installation
Our own fitters install cleanly in a day for most homes, protecting your floors and original windows throughout.
- 05
Aftercare
Your installation is fully guaranteed, with friendly local aftercare whenever you need it.
FAQs
Secondary glazing in Barnet — your questions answered
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Ready to improve your Barnet home?
Book a free, no-obligation quote today. Friendly advice, honest pricing and no pushy sales.