Conservatories are an incredibly popular commodity to have on a property, and because of their easy installation, affordable price and adaptability, it is only getting easier to have one installed.

However, conservatories do not last forever and when you buy a new property with a pre-existing conservatory you may find that it is worse for wear; but there are ways to bring new life to your old conservatory and make it last for years longer.

Extensions can last for almost as long as your pre-existing property itself, with solid brick walls providing a sturdy structure with outstanding thermal insulation and added security. But what you may not know is that you can replace your uPVC conservatory with an extension.

single storey extension

What is the difference between a conservatory and an extension?

Both conservatories and extensions come in a range of different styles and designs, but there are a couple of important differences between them.


‘Conservatories’ count as any structure that is made up of more double glazing than brick, around 75% glazing for the roof and over 50% for the walls.

These walls can either be floor length windows for an unobstructed view of your garden, or they can have dwarf walls fitted to allow for more insulation as well as having plumbing and electrical wiring installed in them, as well as being able to be painted, drilled or fitted with different personalisation options.

Conservatories are the more affordable option if you don’t have much of a budget, being prefabricated and easily installed on nearly any kind of property.

They are also usually used as a relaxation room or throughway into the garden. Still, a quality conservatory can provide you with years of quality, and can also increase the value of your home should you decide to sell.


Extensions don’t have to be bigger than a conservatory, and in fact they can often be exempt from planning permission if they do not exceed 30m2 in floor space.

Made up of more brickwork than double glazing, extensions are used as a seamless addition to a home, seeming like a natural continuation of the property and is often used by homeowners as either an expansion on pre-existing communal spaces such as kitchens and dining rooms.

However, extensions can also be separate rooms in themselves, with their brick walls allowing for plumbing and electrics to be installed so that it can be used as literally anything; from a new study or office space, living areas, dining areas, children’s playrooms or simply a nice place to relax and unwind.

The possibilities are pretty much endless. They are the more expensive option than conservatories, mainly because of the extra work needed in the construction, but they are definitely worth it in terms of longevity and usefulness, adding value to your home as well as desirability should you ever decide to sell on.

For more information on conservatories and extensions, either contact us through our online contact form or start designing through our free online double glazing cost calculator.


How long should a conservatory last?

The lifespan of your average conservatory is typically around 25-30 years, with the advances of modern technology making uPVC a much longer lasting and durable material. In fact, conservatories need very little upkeep and maintenance over the years, not cracking, warping or losing its colour even after years of exposure to the elements.

Often the only thing you need to do is give it the occasional wipe down with a damp cloth in order to keep the windowpanes clear. Extensions on the other hand are often able to last for decades, their brickwork being able to last as long as those of your pre-existing property.

The lifespan of your conservatory can be greatly increased, however, by adding a solid roof to replace your original poly carbonate roof. These standard roofs are not very structurally or thermally sound, and with a lightweight roof their efficiency will greatly increase.

Can I change my conservatory to an extension?

To change your conservatory into an extension you can either choose to have it replaced with a brand new extension, or introduce new elements to your pre-existing structure to make it more like an extension.

Often the addition of a brand new, solid roof is a great way to transform your conservatory into a far more solid and long lasting extension.

Poly carbonate roofs are often the standard when it comes to conservatories, but they are not very well insulated and can be rather basic when it comes to appearance.

However, solid roofs can be tiled to appear identical to the main roof of your property, bringing exceptional insulation to your home; if you would like natural light to still enter your property, they can also be fitted with skylights and roof lights.

Replacing a conservatory completely is pricier, with the cost of a roof being only around £1,200 and £2,500, while a brand new extension can set you back around £20,000 at a minimum depending on the size and materials you want, not including labour costs and the price of removing and disposing of your old conservatory.

For more information on having an extension installed, don’t hesitate to give us a call through our online contact form.

Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

Do UPVC Windows Need Trickle Vents?

Trickle vents are not a requirement, however they do offer additional ventilation without the need for opening your windows so can be a valued add on.

How Much Does A Conservatory Cost?

Your conservatory cost will depend on its specification. Your conservatory size, style, finishes, glazing and build are all factors which will determine the overall price. The good news is, you can now calculate the cost of your conservatory online using our handy online quote builder.

Do I Need Conservatory Planning Permission?

Conservatories are seen as a permitted development, however you may require conservatory planning permission if you have a listed property or if you are living within a conservation area.

Should I Buy A DIY Conservatory?

A DIY conservatory can be a great option if you have the required knowledge and building skills. It can be an expensive choice however, if anything should go wrong. The best thing about a supply and fit conservatory is that your installer takes care of all of the work for you, this includes any building requirements or planning permission.

Why Should I Buy A Conservatory?

A conservatory is an affordable way to extend living space and will prove to be a worthy investment over time. Not only does it help improve the value of your property but it provides you with a multi-functional space to use all year round.

What is The Best Type of Conservatory?

When choosing the best type of conservatory for your home, your property and garden size as well as style have to be considered. For example if you lack garden space, you don't want a conservatory build that is going to be too overpowering. There are conservatory designs for all types of home and specification so any property, traditional or new can benefit from this airy extension.

How Long Will It Take To Install My Casement Window?

Because every job is different, it is best your talk to your double glazing installer who will be able to give you an exact timescale.

Are There Other UPVC Casement Window Styles?

Other UPVC casement window styles include the French casement window which is a more traditional take on the standard casement style.

Will I Have A Choice of Casement Window Locks?

A high security lock will be fitted as standard with your new casement window but your double glazing installer will also offer a choice of security upgrades.

What Are Flush Casement Windows?

Flush casement windows are where the unit sits flush to the frame, creating a super sleek look.

Are There Different UPVC Casement Window Sizes?

UPVC casement windows come in a wide range of sizes to suit your property. You can specify your casement window size in our window cost calculator to get a unique window price!

Can I Choose My Casement Window Handles?

Your double glazing installer will offer you a choice casement window handles and casement window hardware options so you can achieve the perfect look.

What is a Casement Window?

A casement window is attached to its frame by one or more hinges. A casement window is hinged at the side allowing them to open extremely wide. These windows can double up as emergency exits and are perfect for hard to reach places within the home, with many home owners installing these windows behind their kitchen sinks.

Where Can I Get A Tilt and Turn Windows Price?

You can get a tilt and turn windows price using our window cost calculator which will give you a free and unique quote within a matter of minutes.

How Does The Tilt and Turn Window Mechanism Work?

The tilt and turn window can be ‘tilted’ inwards due to its unique turning action which allows the window to be easily accessed from both inside and out. All it takes is a swift turn of the handle.

How Much Do French casement windows cost?

The cost of French casement windows will vary depending on installer but you can get an average casement windows cost using our free online quoting engine

How do UPVC Sash Windows Work?

UPVC vertical sliding sash windows are built to either slide vertically downwards or upwards. This opening function makes the UPVC sash window much easier to use compared to traditional wooden windows where the only choice is double hung and single hand.

Are UPVC Sash Windows Easy To Use?

UPVC sash windows are very easy to use. Their spiral balance mechanism allows for smooth operation so you can open and close your windows with ease. UPVC sash windows are also incredibly low maintenance and require very little cleaning.

Why Should I Choose a UPVC Sash Window?

UPVC sash windows are incredibly attractive and make a stunning addition to any property and are relatively low maintenance thank to their UPVC design. You can enjoy a traditional aesthetic for many years to come thanks to their long standing properties.

Replacement Sash Windows In A Conservation Area

If your home is a listed property or within a conservation area then you will need to seek planning permission.

Bay or Bow Window?

Simply put, it really depends! Bay windows offer often much welcome and useful extra storage space to the frontage of homes. On the other hand, bow windows provide a curved shape alternative in terms of look compared to bay windows. They are both beautiful options and can add much character and charm to the right property.

Can Bay Windows Look Modern?

Bay windows can easily be either modern or traditional depending on the combination of glass and / or coloured uPVC profiles now available. Subsequently, its easy for these windows to seamlessly blend in with contemporary or old properties.

Can Double Glazed Windows Reduce My Heating Bills?

When you install double glazing in your home or commercial property, it is likely that the extra heat retention will lessen the need to use central heating systems. In turn, this could mean you see a drop in heating bills. If you are concerned about your energy bills, it is easy to compare business energy or home energy online.

What Makes Flush Sash Windows Different?

Flush sash casement windows are specifically designed to imitate the appearance of traditional wooden timber windows by appearing to have the same sashes that finish 'flush' with the outside face of the window.

How Much Is A Conservatory?

A Conservatory is cost-effective way of expanding your home without needing planning permission in most cases. Conservatory prices start around £6000. Please refer to our pricing guides below to see how much a conservatory may cost you, or start a quote today.

Can Conservatories Only Be Made Out Of uPVC?

Conservatories can be made out of uPVC, timber and aluminium – it really depends on the style you want for your home. However, uPVC is the cheapest material to make a conservatory out of; timber and aluminium are significantly more expensive. Please check our pricing tables below to get more of an idea on costs or start a quote with us today.

Do I Need Planning Permission To Build My Conservatory?

In most cases, you do not need planning permission for a conservatory, however, it must reach certain guidelines. For example, it cannot exceed the height of the original structure of the home. Please check your local council site for more details (links are found in the 'Gateshead Information' section).

How Long Will My Conservatory Last?

Depending on the materials used to build it, the installation and the general maintenance for a conservatory, they usually have a life span of anywhere between 10-30 years. UPVC conservatories, on average last about 20 years.

How Much Does a Conservatory Cost?

Prices on conservatories begin around £6000, however, this will be dependent on the shape, size and style of your conservatory. Please refer to our pricing table below to get a better idea on how much a conservatory will cost or start a quote with us today.

What Materials Can You Build A Conservatory With?

Conservatories can be constructed with either timber, aluminium or uPVC, the latter being the cheaper material out of the three. Please consult our pricing guide below to get a better understanding of what a new conservatory may cost you.

Should I replace my old sash windows?

Sash windows are a key feature for many traditional period buildings. Sash windows were traditionally built using timber, which is fairly high maintenance and has a tendency toward rotting and warping. Over time, these windows can become draughty and insecure. uPVC sash windows are a great way to experience the benefits of modern double glazing, without sacrificing the aesthetic of your home. uPVC sash windows will not rot or warp and require little maintenance. They are also thermally efficient, which means that your home will not require as much heating.

How much does sash window restoration cost?

The cost of sash window restoration will depend on the survey result. Standard draught proofed sash windows (without sill replacement) usually starts at about £500 per window. The time taken will also depend on the survey result.

Can I install double glazing into my original sash windows?

This will depend upon what type of window you have. Replacing existing moving sashes with new, double glazed replicas might to be possible.

How much does it cost to replace a sash window?

The cost of replacing a sash window will depend on many factors including: style, size, material and glazing. A wooden sash window will cost significantly more than a uPVC sash window. A wooden sash window can cost up to £1000. Wooden windows are more expensive to manufacture so expect to pay that bit more. uPVC sash windows can be designed to mimic wood and are much cheaper in price. The starting price for a standard uPVC sash window is on average £525.

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