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Installing a skylight offers several potential advantages for a property. As well as being a fantastic source of natural light and fresh air, they are relatively simple to incorporate into the existing structure of your home, as well as new extensions and conversions.

That being said, skylights are not without their drawbacks. Aside from the initial costs, skylights can cause a great many problems if installed incorrectly. They are not a feature that should be installed as a DIY project!

If you are interested in a skylight installation project, the best thing to do will be to have a local glazier inspect your property and take proper measurements. They should be able to advise you on what type of skylight will best suit your home and provide you with a bespoke quote for the work. Importantly, they will have the equipment and experience required to safely work at heights, which is crucial for installing loft or roof skylights.

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Advantages and disadvantages of skylights

Like any major home improvement, skylights carry their share of advantages and disadvantages. It is important to get to know these in detail before making any kind of purchase. Remember, the best way to learn about whether skylights will suit your property will be to book a site visit with a local glazier.


  • Skylights can be incorporated into the existing structure of a property, whether in a flat roof or at an angle.
  • They are excellent sources of natural light, which offers several advantages of its own. Not only will it brighten up your home and reduce your energy bills, it can also provide you with a number of health benefits.
  • Skylights currently enjoy a lot of appeal as a modern home feature, making them a great way to interest potential buyers and renters. They can also be upgraded with more luxurious features, such as remote opening controls.
  • Good views are a valuable commodity which skylights can help you take advantage of. Being able to look up and see the sky can be particularly beneficial for your health and general mood.
  • Increased ventilation can help prevent serious issues such as mould and damp.
  • Skylights can be useful for roof access and maintenance. Depending on their location, they can also be used as fire escapes.
  • Flat-roof skylights can allow you to enjoy natural light and fresh air without having to sacrifice your privacy. This can be particularly useful for bathrooms, which also need ventilation to avoid moisture damage.


  • Skylights can sometimes make internal climate control more difficult. They can heat up your property during summer, then cool it down in winter (especially if snow and ice build up on the glass). This can require more temperature regulation, which will raise your energy bills.
  • Depending on their position, skylights can be quite difficult to clean without a ladder or extendable tool. Dust and leaves in particular can build up quickly.
  • Constant exposure to sunlight can cause furniture colours to fade over time.
  • While skylights can help you to save money on your energy bills in the long term, the initial costs can be quite high. 

What do I need to know about installing skylights?

When it comes to skylight installation, there are only two things that you really need to know:

  • Do not skimp on costs. This will be a false economy
  • Have the work done by a professional!

In order to install a skylight, your glazier needs to cut a hole in your home. As you can imagine, there are plenty of ways that this could go wrong!

The installation will need to be 100% watertight in order to prevent moisture from getting through, which can be particularly damaging to a property during the winter months. It is also worth pointing out that when it comes to roof work, falling is a very real danger. Unlike you, a Pro will have all of the equipment and experience necessary to work safely at heights.

Skylights offer a surprising number of features including shading, UV coating, ventilation and double glazing. It is worth taking the time to research these add-ons during your planning phase and discussing them with your chosen glazier, who should be able to offer a bespoke quote after hearing what you are after. 

One of the most important reasons to have a glazier do the work on your behalf is structural. You cannot just go cutting holes in your home and expect it to stay standing. For example, a glazier may suggest installing two smaller skylights in a roof rather a single large one, as this will would better support the rest of the roof structure. 

Before booking your skylight installation service you will need to decide:

  • What type of frame you want (wood, uPVC, steel, aluminium)
  • Will your skylight be able to open? Do you also want to invest in remote controls?
  • What type of glazing do you want?
  • What type and size of blinds do you want?

How much does skylight installation cost?

The cost of skylight installation will depend on the number you want to install, their position and the features you want included. Remember, trying to do the installation work yourself in order to save money will be a false economy; a botched installation could lead to serious structural problems for your property down the line which will be much more expensive to repair.

As a general rule, you could expect to pay around £1,000 per skylight (including installation costs). While this may sound like a lot, you should take the time to consider the long term implications: not only can improved access to natural light allow you to save money on your energy bills, it can also make your home more attractive and help you secure a higher asking price by the time you come to sell.