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Solving the Problem of Droughty Windows in London

Living in London, you might find yourself frequently grappling with the issue of droughty windows. These windows not only make your home uncomfortable but also lead to higher energy bills. Droughty window London allow cold air to seep in during winter and let cool air escape in summer, making it harder to maintain a comfortable indoor temperature. This blog will guide you through understanding the causes of droughty windows, how to fix them, and ways to prevent drafts in the future.

Understanding the Causes of Drafty Windows

  1. Old or Worn-Out Seals

Over time, the seals around your windows can wear out or become damaged. Weather stripping and caulking are essential for keeping drafts at bay, but they can degrade due to age, weather exposure, and regular wear and tear.

  1. Poor Installation

Improperly installed windows can leave gaps that allow air to flow in and out. Even high-quality windows can become drafty if they weren’t installed correctly in the first place.

  1. Single Glazing

Many older London homes still have single-glazed windows, which are less efficient at insulating than double or triple-glazed options. Single glazing can easily lead to drafts and cold spots.

  1. Structural Shifts

Houses naturally shift and settle over time, which can cause gaps to form around window frames. These gaps can let in cold air and make windows feel drafty.

How to Identify Drafty Windows

  1. Feel for Drafts

On a windy day, run your hand around the edges of your windows. If you feel a noticeable change in temperature or a breeze, you likely have a drafty window.

  1. Visual Inspection

Look for visible gaps or cracks around the window frames. Check for signs of worn or damaged weather stripping and caulking.

  1. Candle Test

Hold a lit candle near the edges of your windows. If the flame flickers or goes out, there’s likely a draft.

  1. Check for Condensation

Condensation between window panes or on the inside of windows can indicate poor insulation and potential drafts.

Fixing Drafty Windows

  1. Replace Weather Stripping and Caulking

One of the easiest and most effective ways to fix drafty windows is to replace old or damaged weather stripping and reapply caulking. Weather stripping seals the movable parts of the window, while caulking fills in gaps and cracks around the frame.

  1. Install Window Film

Window film can add an extra layer of insulation to your windows. It’s a cost-effective solution that can significantly reduce drafts and improve energy efficiency.

  1. Use Draft Snakes

Draft snakes, or draft stoppers, are fabric tubes filled with insulating material that you can place at the base of your windows to block cold air from entering.

  1. Upgrade to Double or Triple Glazing

If your budget allows, consider upgrading to double or triple-glazed windows. These windows provide better insulation and can significantly reduce drafts and energy costs.

  1. Install Storm Windows

Adding storm windows can create an additional barrier against drafts. They can be installed on the exterior or interior of your existing windows and help improve insulation.

Preventing Future Drafts

  1. Regular Maintenance

Perform regular maintenance checks on your windows to ensure that seals, weather stripping, and caulking are in good condition. Address any wear and tear promptly to prevent drafts from developing.

  1. Invest in Quality Windows

When replacing windows, invest in high-quality, energy-efficient options. Double or triple-glazed windows with low-emissivity (Low-E) coatings can provide excellent insulation and reduce the risk of drafts.

  1. Professional Installation

Ensure that windows are installed by a professional to avoid gaps and other installation-related issues. Proper installation is crucial for maintaining an airtight seal and preventing drafts.

  1. Add Insulating Window Treatments

Consider adding insulating window treatments such as thermal curtains or cellular shades. These treatments can provide an additional layer of insulation and help keep drafts at bay.


Dealing with droughty windows in London can be frustrating, but with the right approach, you can identify, fix, and prevent drafts effectively. Regular maintenance, high-quality materials, and professional installation are key to ensuring your windows remain airtight and energy-efficient. By addressing drafty windows promptly, you can create a more comfortable living environment, reduce your energy bills, and enhance the overall efficiency of your home. Whether you choose quick fixes like weather stripping and caulking or invest in long-term solutions like double glazing, taking action against drafty windows will pay off in comfort and savings.



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