Double Glazing Costs

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Double glazing

uPVC double glazed windows supply & fit

If you want to see a huge reduction in your annual energy bills, whilst being environmentally friendly, replacement double glazing is often the way to go. And with uPVC windows you have a material that surpasses aluminium and hardwood, with a number of quality benefits.

uPVC double glazing is the most popular window replacement in the UK and is even recommended by most window installers because of its advantages.

But what is double glazing?

Double glazing is an efficient window unit that will replace your old, inefficient single paned windows. It’ll last for more than 15 years, cutting your energy bills year-in year-out by retaining heat in your home.

It works by having two panes of glass separated by an energy efficient spacer, which doesn’t allow heat to pass through. This spacer is normally Argon and fills a gap between 20mm and 28mm.

Benefits of uPVC double glazing

uPVC windows are the most popular replacement units in the UK and thousands of installations are completed every year. With double glazed windows:

  • Reduce your heating bills by as much as £300 a year, with superb energy efficiency locking heat in your home. This means you don’t need to turn up the temperature on your boiler to keep warm.

  • Your property instantly becomes more secure and research actually suggests break-ins are prevented as burglars avoid double glazed properties. Double glazing helps put your mind at rest and ensures greater safety.

  • Cut your home’s carbon dioxide emissions, lowering your footprint on the planet. Carbon is one of the key gases responsible for environmental problems such as global warming.

  • And an added benefit with double glazing is that noise pollution is limited, with sound waves unable to pass through that efficient Argon spacer.

Why choose uPVC windows?

There are a number of reasons uPVC is the most popular frame material in the double glazing industry for both homeowners and companies. Firstly, it’s far cheaper than hardwood or aluminium. So for those on a budget it’s a life saver.

And even with the cheap price, uPVC doesn’t skimp on its quality. It’s an extremely efficient material, reducing your energy bills and is also extremely durable and resistant to weather conditions.

It won’t rot or bow like wooden frames and it also can be coloured to match traditional homes. During production it’s created with stabilisers and additives to protect it from the sun’s natural UV rays too.

uPVC double glazing quotes

If you’re interested in uPVC windows it’s best to receive a number of quotes to compare prices and ensure you get the best deal for your money.

By completing our quick form we’ll provide you with up to four FREE quotes from local, vetted and reputable window suppliers.

Average Double glazing cost

The typical cost of double glazing is approximately £400-600 per window, so you’re looking at approximately £2,000 to install 4 double glazed windows in a flat, and up to and exceeding £5,000 for replacing all the windows in a standard-sized home.

Average price per Double glazing job in 2021

Avg. price low

Avg. price low
£950

Avg. price

Avg. price
£1,942

Avg. price high

Avg. price high
£2,875

£3000

£2250

£1500

£750

£0

Prices based on actual Double glazing costs, as reported by local Quotatis members.

Double glazing installation cost in 2021

Labour cost £1,400
Material cost £500
Waste removal £100
Time frame: 1-2 days

Advantages for Double glazing

  • Low cost vs other materials such as wood and aluminium
  • Available in a wide range of designs and styles
  • A good insulator that is highly energy efficient
  • High security to make your home more secure

Disadvantages for Double glazing

  • Does not use natural materials so not as environmentally friendly
  • Can discolour if not cleaned very regularly
  • Adds less value to your home than wooden windows

Double glazing Manufacturers

Double glazing FAQs

How can I find out how energy efficient my new windows will be?

All new windows come with an energy efficiency rating from A to G. A is best, while G is the lowest rating. Anything above C is considered good, but these days most companies will be able to supply you with A-rated windows to maximise your energy efficiency.

What if my home isn’t suitable for double glazing?

Some properties are unable to have double glazing, especially those in conservation areas or listed buildings. To counter this problem and still benefit from a warmer home and cheaper bills, secondary glazing is an option. Secondary glazing is a second pane fitted inside your original window. Secondary glazing will still save you around £105 yearly.

What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

How much could I save on my energy bills if I install double glazing?

As well as keeping your home warmer and reducing noise, you’ll notice a saving on your energy bills from installing double glazing. If you install A++ rated windows in your home after having single glazing, you could save up to £120 year on your energy bills. The Energy Saving Trust has more information.

Are A-rated windows worthwhile?

On the grand scale of things there isn’t a huge difference between B-rated windows and A-rated windows. Consumer watchdog Which? have calculated an extra 6.5% would be saved on energy bills with A rather than B rated panes. Be aware that A rated windows are slightly more expensive, however.

What are the other double glazing options?

Double glazing frames don’t just have to come in uPVC and are available in other materials including aluminium and wood too. Wooden or timber windows are more suited to properties with a traditional look and are often the frame of choice for listed buildings and homes in conservation areas. When properly maintained wooden windows can last well for years but can be up to three times more expensive than uPVC.Aluminium is the strongest and most durable option. As a metal it is highly resistant to the UK’s changing weather conditions and won’t rust, warp, crack or peel. Aluminium offers a modern appeal and is available in a range of colours.

Do I need to stay at home while my windows are being replaced?

Most installers will not need you to be at home while they are fitting your windows. It is a good idea to be present though, just in case they have any questions for you and perhaps for your own peace of mind. If you cannot be there, you will need to arrange access to the property and/or agree securing the property at the end of the day.

Should I use a Fensa registered installer?

Using a Fensa registered installer isn’t compulsory but it helps to protect you from cowboys and rogue traders. It will also make life a whole lot easier in regards to Building Regulations. Replacement windows must meet a certain energy efficiency rating and once fitted you need a certificate to show your installation complies. By using a Fensa registered company they’ll issue this certificate, otherwise you’ll need the council to look at the new windows.

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