How Much Would It Cost to Double Glaze a 3 Bedroom House?

Ballpark Cost of Double Glazing a 3 Bed House in the UK

For figures involving 8 windows and 2 doors, the average cost of double glazing is between £8,000 and £12,000. This will be pretty accurate for uPVC, but other materials will be more expensive. The true cost of double glazing a 3 bed house in the UK is tricky to estimate as it depends on a lot of factors. These include:

• Property type

• Chosen materials

• Window/door style

On the top end of the scale, for 12 windows, bifolds and a front door in aluminium, you can pay around £15,400. With specific styles for windows, these can easily increase as this won’t cover any bay windows. This is why it’s important to consider how many windows and/or doors you need to replace when looking at the cost of double glazing a 3 bed house in the UK.

How Property Type Affects Price

A semi-detached property will have fewer windows than a detached house. Similarly, a terraced house will have the least. On average, detached homes have up to 12 windows, while semi-detached homes have up to 10. Terraced homes only have up to 8 windows, which makes them cheaper to install double glazing to. When looking for the cost of double glazing a 3 bed house in the UK, the type of property you have will allow you to estimate how much it will roughly cost.

The easiest way to gain an estimate of the UK cost of double glazing a 3 bed house is to use the price of an individual double glazed window or door in the subsequent sections. As window sizes are anything but universal, there will be some leeway in the average prices. Take the figure and multiply it by the number of windows and doors you need to replace in your home.

How Window and Door Materials Affect the Cost

Some of the most popular materials for a window frame are uPVC, timber and aluminium. These are listed in ascending price order. With double glazed doors, the materials usually consist of uPVC, composite, aluminium and timber. Again, these are listed in ascending price order.

To work out the cost of double glazing a 3 bed house in the UK, use the prices below in the interactive graph as a base for door and window installers.

In this scenario, the windows are sized 1,000 x 1,000mm, which may be bigger or smaller than the windows you already have. To replace 8 windows and a front door with the aluminium option, this can be around £7,800. The uPVC option will cost you £5,980. The cost of double glazing a 3 bed house in the UK with more windows and at least one more door will add to these estimates.

The prices of doors are not trade prices, but they do cover the price of installation. This is why they are so much more expensive. The cost of double glazing a 3 bed house in the UK will contain labour fees. Window prices are averages across different styles, which is where the next section comes in.

Double Glazing Cost for Different Styles

Windows

Windows come in a number of different styles, from the standard casement to the more expensive bay. Even though the material you choose has a strong bearing on the cost of double glazing a 3 bed house in the UK, the style is also important. Casement windows are the cheapest, most prolific option, but sash or tilt and turn windows will cost you more.

You can see how double glazing costs for different styles compare based against other materials in the interactive graph below.

In terms of style, aluminium casement windows cost around the same as uPVC double glazed windows in a sash style. When it comes to bay windows, the cost of double glazing a 3 bed house in the UK will always be more expensive because of their construction and shape. This will be the same for any sized property.

Damaged windows? Double glazing repairs can be a way of keeping costs down instead of replacement.

Doors

Double glazed doors come in French styles to bifolds, giving you plenty of choice. When it comes to double glazing your whole house, the doors will drive up the cost considerably. The back of the property can feature more impressive glazing options, like bifolds, but these are at least £5,000. The cost of double glazing a 3 bed house in the UK with these doors will be the most expensive option. Cheaper alternatives are available, but they aren’t as imposing.

The cost of double glazing a 3 bed house in the UK doesn’t have to include the doors at the same time, but it can do. The options available for double glazed doors mean you can customise it to suit you.

Other Factors Affecting Pricing

If you are in the process of building a home, the price of fitting windows will be much lower than if you are replacing them. Labour and disposal are involved with the cost of double glazing a 3 bed house in the UK, so getting rid of any existing frames will drive up the price you pay.

Similarly, not all of your windows will be on the ground floor. Scaffolding needs to be erected to reach the first floor (or above) to fit replacement windows. You may also need an assessment or a survey, which will increase the cost of double glazing a 3 bed house in the UK.

Finally, you’ll need to consider the type of double glazing. While you can have standard double glazing fitted, more energy efficient panes of glass can help retain heat in your home. A or A+ rated windows offer you a much better return on your heating bills, which helps pay off the cost of double glazing a 3 bed house in the UK. It’s through these savings that you will see the payback period for your new windows.

Reducing the Cost of Double Glazing a 3 Bed House in the UK

To make the whole process cheaper, you can opt for less expensive materials and styles, but this does depend on whether it will suit the aesthetic of your home. No matter the style of your existing windows, choosing an alternative option will make it more affordable than bay windows.

Similarly, aluminium is the most expensive option to go for, but there are uPVC finishes that have a fake timber finish. You can cut the cost of double glazing a 3 bed house in the UK by choosing alternative finishes and type of double glazed window.

One of the other ways in which you can look at reducing the cost is the durability of the material you’ve chosen. Even though aluminium is the more expensive option, it has the potential to last for 45 years, which gives you an economical choice.

uPVC is cheaper but can last 15 years less, meaning you’ll have to pay out again much sooner, costing you more in the same time period. When it comes to the cost of double glazing a 3 bed house in the UK, considering the materials you choose can end up saving you money in the long run.

Window Grants in the UK

There are a few options to help with the cost of double glazing a 3 bed house in the UK. Most notably, the Energy Company Obligation (ECO) scheme is designed to help households on low incomes. The final phase, ECO4, is running until March 2026 and one of the energy efficient improvements you can apply for is new windows. Double glazing installers operate under the ECO scheme.

If you are unable to apply for ECO4, you may be able to receive funding through the Great British Insulation scheme, which is currently running alongside the parent scheme. If your home has an EPC rating of D or lower, you may be able to get help with the cost of double glazing a 3 bed house in the UK. This is extra funding that can help a few hundred thousand households.

Other grants are available for people living in Scotland and Wales.