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A Comprehensive Guide to The Cost of a Double Glazed Window

 

Welcome to our detailed guide on the costs of double glazed windows in the UK. Whether you’re looking to upgrade existing windows or install new ones, understanding the associated costs will help you make informed decisions. This guide covers various types of double glazed windows, pricing breakdowns based on materials, styles, sizes, additional features, and factors influencing costs. Let’s dive in!






Understanding Double Glazed Windows

 

Double glazed windows consist of two panes of glass with a sealed space between them, which is often filled with an insulating gas, such as argon. This design enhances energy efficiency, reduces noise pollution, and improves comfort in your home. However, the costs can vary widely based on several factors, including the material, style, size, and installation practices.







Cost Breakdown by Window Type

 

  1. uPVC Double Glazed Windows

 

Price Range: £500 – £1,200 per window

 

uPVC (unplasticised polyvinyl chloride) is the most common material used for double glazed windows in the UK due to its affordability and resistance to rot. uPVC windows can come in various styles, including casement, sliding, and tilt-and-turn.

 

Cost Factors:

– Standard Sizes vs. Custom Sizes: Standard sizes are less expensive than custom fits.

– Styles: Casement styles generally cost less than sash or bay windows.




  1. Aluminium Double Glazed Windows

 

Price Range: £700 – £1,800 per window

 

Aluminium windows are known for their strength, durability, and modern design. They offer minimal maintenance and can support larger glass sections for enhanced views.

 

Cost Factors:

– Thermal Break: Windows with a thermal break (an insulating barrier between the internal and external part) will be pricier.

– Finishes: Powder-coated finishes can increase the cost due to the additional treatment process.




  1. Wooden Double Glazed Windows

 

Price Range: £800 – £2,500 per window

 

While wooden windows provide natural beauty and can enhance the aesthetic of your home, they require more maintenance compared to uPVC and aluminium.

 

Cost Factors:

– Material Choice: Different wood types (softwood vs. hardwood) can vary the price significantly.

– Finishing: Staining, painting, or adding protective coatings will add costs.




Cost Breakdown By Style Of Double Glazed Window

 

  1. Sliding Sash Double Glazed Windows

 

Price Range: £700 – £1,500 per window

 

Sliding sash windows are often seen in period homes and offer traditional aesthetics blended with modern double glazing.

 

Cost Factors:

– Material: Wooden sliding sash windows are typically more expensive than uPVC options.

– Mechanisms:** Quality of the sliding mechanism can impact price.




  1. Tilt and Turn Double Glazed Windows

 

Price Range: £600 – £1,400 per window

 

Tilt and turn windows provide flexibility for ventilation and ease of cleaning, as they can tilt inward from the top or swing open from the side.

 

Cost Factors:

– Size and Type: Larger windows or specific designs may come at an increased price.

– Hardware: Quality of hinges and locking mechanisms can affect costs.



  1. Casement Double Glazed Windows

 

Price Range: £250 – £800 per window

 

Casement windows are hinged on one side and open outward, allowing for maximum ventilation while providing an unobstructed view.

 

Cost Factors:

– Finish and Design: Simple designs will generally cost less than more elaborate options.

– Glass Type: Enhanced glass features, such as low-E coatings, can influence pricing.




  1. Bay and Bow Double Glazed Windows

 

Price Range: £1,000 – £3,000 per window

 

Bay and bow windows project outward from the home, creating a beautiful focal point and allowing more natural light inside.

 

Cost Factors:

– Size and Structural Changes: Larger units or those requiring structural modifications will see increased costs.

– Frame Materials: The choice of material (uPVC, wood, or aluminium) can influence the final price as well.




  1. Bi-Fold Double Glazed Windows

 

Price Range: £1,500 – £3,500 per set

 

Bi-fold doors are made up of multiple panels that fold to one side, allowing for a seamless transition from inside to outside.

 

Cost Factors:

– Number of Panels: More panels increase the overall cost.

– Material Type: Aluminium is generally more expensive but offers a sleeker design than uPVC.




  1. Picture Double Glazed Windows

 

Price Range: £300 – £900 per window

 

Picture windows are fixed and provide expansive views without the ability to open. 

 

Cost Factors:

– Size: Larger fixed windows naturally carry a higher price tag.

– Glass Quality: Higher-grade glass options (like triple glazing or tinted glass) will add to the cost.




Additional Costs to Consider

 

While the above estimates provide a foundation, the final cost of your double glazed windows can vary due to several additional factors:

 

  1. Installation Costs

 

Installation can add £100 to £500 to the overall window cost, depending on the complexity of the job. Factors influencing installation prices include:

 

– Location: Installation costs may vary by region within the UK.

– Accessibility: Difficult-to-reach areas may incur additional charges.

– Removal of Old Windows: You may need to budget extra if existing windows need to be removed prior to the installation of new ones.

 

  1. Energy Efficiency Features

 

Higher energy-rated glass options or additional features such as solar control glass, low-emissivity (low-E) coatings, or argon gas fillings can all drive up costs but may save money in heating and cooling costs in the long run.

 

  1. Warranty and Guarantees

 

Many manufacturers offer warranties that can range from 5 to 25 years, depending on the product. Ensure that these are factored into your overall budget, as longer warranties may result in slightly higher initial costs.

 

  1. Custom Features

 

Opting for custom shapes, sizes, or additional features (like decorative grilles or speciality glass) will definitely increase the cost. While these can enhance aesthetics, it’s vital to consider your budget before finalising plans.





Financing Options for Double Glazed Windows

 

If cost is a concern, many companies offer financing options to make purchasing double glazed windows more accessible. Check for:

 

– 0% Interest Financing: Spreading the cost over several months can ease the financial burden.

– Flexible Payment Plans: Some suppliers may offer tailored finance solutions based on individual circumstances.

 

Always read the small print to understand the terms and conditions associated with financing options.






Preparing for Your Project

 

Undertaking a window replacement project requires careful planning:

 

  1. Research Different Suppliers: Spend time comparing quotes and reviews. Reputable companies often provide comprehensive quotes, including all materials and installation costs.

 

  1. Consult with Professionals: Speak to local contractors and window specialists to ensure you get expert advice tailored to your specific needs.

 

  1. Plan for Installation: Setting a timeline for your installation can help you coordinate with other home improvement projects.

 

  1. Check for Permits: Some areas may require permits for window replacements, especially if structural changes are involved. Be sure to check local regulations.







Understanding the costs associated with double glazed windows is crucial for homeowners looking to enhance their homes. From the variety of materials and styles to various factors tied to price points.

As you consider upgrading your home with double glazing, remember to thoroughly research your options, factor in all associated costs, and consult professionals to find the best solutions tailored to your needs. With the right choices, you can enjoy improved energy efficiency, noise reduction, and enhanced aesthetics—all while increasing your home’s value.

 

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