In this article, discover the cost of installing new windows in your 3-bed house. Learn about the various factors that affect the cost and what you should consider when choosing new windows.
There are several variables that contribute to the cost of installing new windows. To give you an idea, window installations account for about 5% to 12% of any home construction budget in the UK, indicative of the fact that they’re seldom an affordable affair. If you are self-building/DIY, then you may very well come into this bracket. Though they come off as a substantial investment at the beginning, windows, especially when double or triple glazed, help to significantly reduce your energy expenditure in the long run. They enormously impact the energy efficiency of a house and cut down on your expenses.
Does Cost Have a Basis in Selecting Windows?
Yes, there are factors that direct the costs of windows. It is hence important to learn about them before diving into knowing the actual costs.
What Factors Contribute to the Cost of Installing New Windows
It all comes down to the frame material and glazing. Though window size and installation charges account for, they do not add up to the cost as prominently as the frame material and glazing type.
Material Used for the Frame
Type of Glazing (Double or Triple)
Design/Style of Windows (Complexity)
Type of Windows
Number of Windows
Added Features
What Kind of Windows are the Most Advantageous
Though single-glazed windows in the past were popular for being cost-effective and allowed for easy installation, they did not make the cut with the gradual evolution of UK’s architecture.
Due to rapid urbanisation and climate change single-glazed windows remained ineffective and could not respond to the juggernauting urban and social transformation. Double-glazed windows, however, evolved to become more energy efficient, more insulative, thus being a much more convenient option for regions that experience volatile weather situations. Triple-glazed windows further upped the ante offering unmatched energy efficiency and noise reduction and are now considered one of the better choices from a security, sustainability and energy efficiency perspective.
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On top of that, in the UK, planning permission and councils’ guidelines plays an important role in determining the kind of windows one opts for. When replacing windows, especially in conservation or listed areas, it is crucial to replace with the same style, high performance windows.
Our focus in this article hence solely lies on double and triple glazed windows which are not only popular but also the favoured choice for houses across the UK architecture spectrum.
Overview of Window Costs for a 3-Bed House UK
An average 3-bed house in the UK typically consists of 8-10 windows. A detached 3-bed house may have 10-12 windows whereas a semi-detached or a terraced house typically includes 8-10 windows.Double-Glazing Windows:Given the most favoured and popular of all window types across the UK, let’s first approximate a double-glazed window. A ballpark figure to install a double-glazed window for a 3-bed house will range between £4,000 to £16,000 (basic to high) for 8 to 10 windows. However, the average cost to replace a 3-bed house window in the UK is typically between £4,000 to £7,000.As discussed earlier, the variation in price range is dependent upon the type of window, frame material, complexity in design, complexity in installation, type & quality of glass among other factors.
Now that we are aware of the factors affecting the cost of a 3-bed house in the UK, let us decipher the approximate costs based on window types and frame materials. This will make it easier to get a comprehensive idea of the cost in units.
Window Types
Casement Windows
Sash Windows
Bay Windows
Tilt & Turn Windows
Frame Types
uPVC
Aluminium
Wood
uPVC Frame Window in a 3-bed house. Popular since the 80’s, uPVCs (unplasticised polyvinyl chloride) exhibit high thermal efficiency and entail low maintenance making them the most affordable of all available materials when considering window installation.Casement Window:Cost range per Window = £370 to £970Average Cost per Window = £670Cost range for a full house uPVC Casement for 3-bed house = £3,348 to £8,650Average cost for a full house uPVC Casement for 3-bed house = £5,900 Sash Window:Cost range per Window = £720 to £1,160Average Cost per Window = £940Cost range for a full house uPVC Sash for 3-bed house = £6,472 to £10,430
Average cost for a full house uPVC Sash for 3-bed house = £8,450Bow/Bay Window:Cost range for a 3-Section Window = £1,400 to £1,675Cost range for a 4-Section Window = £1,900 to £2,200Cost range for a 5-Section Window = £2,490 to £2,700Average cost for a full house uPVC Bow/Bay for 3-bed house = £12,500
Aluminum Frame Window in a 3-bed house
Known for their durability and solidity, aluminium window frames are quite popular among those who look for a contemporary feel and long-term value. Casement Window:Cost range per Window = £750 to £1,140Average Cost per Window = £950Cost range for a full house Aluminum Casement for 3-bed house = £6,700 to £10,320Average cost for a full house Aluminum Casement for 3-bed house = £8,510Sash Window:Cost range per Window = £1,180 to £1,675Average Cost per Window = £1,427Cost range for a full house Aluminum Sash for 3-bed house = £10,062 to £15,066Average cost for a full house Aluminum Sash for 3-bed house = £12,564Bay/Bow Window:Average cost for an Aluminum Bow/Bay per window = £3,200Average cost for a full house Aluminum Bow/Bay for 3-bed house = £27,200
Timber Frame Window in a 3-bed house
Casement Window:Cost range per Window = £1,150 to £1,830Average Cost per Window = £1,500Cost range for a full house Timber Casement for 3-bed house = £10,320 to £15,480Average cost for a full house Timber Casement for 3-bed house = £12,900Sash Window:Cost range per Window = £1,615 to £2,360Average Cost per Window = £1,988Cost range for a full house Timber Casement for 3-bed house = £14,510 to £21,300Average cost for a full house Timber Casement for 3-bed house = £17,900Bay/Bow Window:Average cost for a Timber Bow/Bay per window = £5,200Average cost for a full house Timber Bow/Bay for 3-bed house = £40,100
Conclusion:
Installing new windows is a fruitful venture as they stand as long-term investments lasting decades with bare minimal cost entailed on annual maintenance.
Apart from elevating your house aesthetics, new window installation if done properly augments the energy efficiency of your house, bolsters security, offers enhanced insulation and thereby increases the value of your house. As experts in this area for more than 16 years, we suggest you consult and hire professional architects who not only are technically proficient in terms of installation, but also can expertly recommend the right choice of windows that suits your house.
Remember, some window installations require compliance to regulations and planning permissions.
Please note that the above estimates are extensively researched ballparked estimates. If you are planning to install windows in your new-build or are planning for a window replacement at your existing house, reach out to us to get an accurate quote.
Eugene Kim, Founder and Managing Director of Extension Architecture, has led the firm for over 14 years, consistently delivering quality solutions. His dedication has been key to the company's growth and success.
