Secondary Glazing London With Gecko Panes

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Sash Window Secondary Glazing in London

Are your sash or other timber windows cold, damp or noisy?

Gecko Panes offer secondary glazing in London for homeowners and renters who want warmer rooms, less condensation and a quieter home. Our secondary glazing for sash windows pops inside your existing frames in seconds. You keep your original windows and gain the benefits of double glazing.

If you’re looking for an affordable alternative to double glazing, Gecko Panes save you time and money compared with replacement windows, and they suit the period homes found across the capital.

Gecko Panes London

Secondary glazing London with Gecko Panes for sash and other timber windows.

  • Fast, simple install in seconds
  • Keeps windows unobstructed
  • Leaves frames free from damage
  • Cuts heating costs and outside noise
  • Tackles condensation
  • Up to 80% more affordable than double glazing
  • Extended payment plans
    10 year guarantee

Secondary Glazing for Sash Windows in London

You have Georgian terraces in Islington, Victorian conversions in Clapham and Edwardian mansion blocks in Maida Vale, much of London’s housing still has original single glazed sash windows. They look the part, but they also let heat out and street noise in.

Our secondary glazing for sash windows fits inside the frame with no drilling, screws or brackets. Each pane seals against the window to trap a layer of insulating air. Lift the panes out in seconds when you want to clean the glass.

You keep your original sash windows, your home keeps its character, and your rooms feel warmer from the first day.

Gecko Panes for Listed Buildings and Conservation Areas in London

Large parts of London sit within conservation areas, and thousands of homes carry listed status. Replacing original windows in a listed building needs listed building consent, and many conservation areas restrict changes to front elevations.

Gecko Panes sit inside the existing frame and leave the original windows untouched. As a removable addition, secondary glazing is often the preferred option for listed properties. Check with your local conservation officer if you’re unsure what applies to your home.

Each pane is precision-cut from crystal-clear 2mm acrylic, framed in lightweight aluminium and sealed with a patent-pending sponge surround. The panes pop into place and fit over 99% of timber sash windows. More than 1,000 customers have fitted Gecko Panes to improve comfort, energy efficiency and EPC ratings while keeping their period features intact.

Listed Buildings

Reviews of Gecko Panes London

Stephanie lives in a traditional Victorian house, with tall ceilings, original single glazed sash windows, and all the charm that comes with an older property. During the colder months, her home came with a familiar set of problems cold rooms and heavy condensation.

Secondary Glazing for Noise Reduction in London

Buses, night traffic, sirens and aircraft on the Heathrow and London City flight paths all reach you through single glazing. The sealed air gap between your window and a Gecko Pane reduces outside noise, so bedrooms and home offices on busy roads become quieter places to sleep and work as better insulation means less sound.

 

Secondary Glazing for Renters in London

Renting a flat with draughty sash windows? Most tenants have no say over window replacement. Gecko Panes fit without screws or drilling, leave the frames as you found them, and lift out when your tenancy ends. You stay warm through winter and spend less on heating.

 

Secondary Glazing vs Double Glazing in London

Replacing sash windows with double glazed units in London means new frames, a fitting team, and often weeks of waiting. Listed buildings and many conservation areas add consent applications on top.

Gecko Panes work alongside your existing windows. Your original sashes stay in place, the panes fit from inside, and the whole job takes minutes per window. You keep the period look from the street and gain the insulation benefits inside.

For most period homes in London, secondary glazing gives you warmer rooms and lower heating bills for a fraction of the cost of replacement windows.

 

How Much Does Secondary Glazing Cost in London?

Gecko Panes cost up to 80% less than full double glazing, with one pane starting from £24.00. You order online, the panes arrive by fast UK delivery, and you can fit them yourself. If you choose DIY installation are no fitter call out charges or London labour rates to add on.

Book a Window Survey London

Not sure which setup suits your windows? Our team offers window surveys and glazing assessments across London. We’ll measure, advise and make sure every pane fits.

Book a free window survey near London, ask our team any questions, or order online with fast UK delivery.

Secondary Glazing for listed buildings

Gecko Glazing Serving All Areas of London

Gecko Panes supply homes across North, South, East and West London, including Islington, Camden, Hampstead, Kensington, Chelsea, Notting Hill, Fulham, Clapham, Battersea, Greenwich, Hackney, Stoke Newington and Richmond.

If you live in a Georgian townhouse in Islington, a Victorian terrace in Clapham, a mansion block flat in Marylebone or a listed property in Greenwich, Gecko’s secondary glazing for sash windows fits the homes London is known for.

Secondary Glazing London FAQs

 

Do I need planning permission for secondary glazing in London?

Secondary glazing sits inside your existing window and is usually treated as a reversible addition. Planning permission isn’t normally required. Listed buildings follow stricter rules, so speak to your local conservation officer before fitting.

Will Gecko Panes fit my sash windows?

Gecko Panes fit over 99% of timber sash windows. Book a free survey and our team will measure your windows and confirm the right fit.

How long does installation take?

Each pane pops into place in seconds, with no tools or fitter needed.

Are Gecko Panes suitable for rented flats?

Yes. The panes fit without screws or drilling and lift out cleanly, so the window frames stay as you found them.

Do Gecko Panes stop condensation?

Gecko Panes create a sealed layer of air between the pane and your window. This keeps the inner surface warmer and stops condensation forming on cold mornings.

What guarantee comes with Gecko Panes?

Every Gecko Pane comes with a 10 year guarantee.

 

Find out how Gecko Panes can improve your home's insulation in London.

DIY is easier than you think

Join over 2,000+ customers who measured and installed Gecko Panes themselves.

Not sure? You can still choose professional help later.

STEP 1

Measure

In 1 minute per window

STEP 2

We make it

We custom make your panes to the exact size.

STEP 3

You fit it

Push fit installation. No special tools. Takes seconds.

Money-back guarantee

Full refund on your trial Gecko Pane. No questions asked.

Large trial panes over 1m qualify for a 75% refund.

Save up to 20% on DIY orders.

Save 10 to 20% by installing yourself.

 

Discounts are automatically applied on the order page.

Need Help? We’re with you every step of the way.

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