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Sean Mudhar | Everest specialist

Quick Tips & Advice About Your Home Improvements

What is this average cost of uPVC windows and doors?

The average cost of uPVC double glazed windows for a 3 bedroom house (2 bathrooms, kitchen, and landing windows) is usually around £12,000 but can go up t0 £25-£30,000 if you are looking for triple glazing and/or if you opt for lifetime guarantee, and if you have bay windows the price does increase.

How much better is triple glazing than double glazing?

understand how much better triple glaze windows are compared to double glaze windows we need to look at the specification.

Triple glazed windows have an energy efficiency rating of A+21

Double glazed windows have an energy efficiency rating of A+10 or A+12 (depending on the specification you chose)

This means that triple glazed windows are better for thermal and noise by 11-13 which is double the amount that double glazing is

Triple glazing also has the middle piece of glass toughened which helps in the performance

Is uPVC windows better than wood windows?

uPVC is insulated with either a thermal composite, reinforced uPVC or galvanised steel, this adds to the strength rigidity of the frame. Wood can be hardwood or softwood, but has no thermal composites or additional strength. It costs a lot more and requires painting and maintenance every 5 years. uPVC there is little maintenance required. Wood can expand and contract with weather, but buying from the right company uPVC will not warp or discolour. If you chose Everest then you get the lifetime guarantee for your windows in uPVC which is an excellent investment and is transferable to the next homeowners if selling the house.

Is uPVC better than aluminium?

uPVC is internally beaded, and aluminium is externally beaded. This means it’s easily accessible to replace windows externally which isn’t so good as it attracts intruders.

The aluminium frames do have a slimmer profile and slimline sleek finish which can be seen by some as an advantage in using aluminium.

The downside is aluminium is a good conductor of heat through the metal which means you would lose more heat.

What is energy efficiency? What does energy efficiency mean?

Energy efficiency means without changing the service you will be using less energy. For example, a triple glazed window is more efficient than a standard double glazed window as it uses much less energy (time) to produce the same amount of heat.

Increasing energy efficiency often costs money up-front (such as double glaze A+12 rather than A+10) but in many cases this capital outlay will be paid back in the form of reduced energy costs within a short time period. Which means efficiency improvements will be an attractive starting point for reducing carbon emissions.

What is the best U value for windows and doors?

1.2 to 1.4 currently

Are composite doors cheap, or is uPVC doors cheaper?

Composite doors are made up from upvc with a wood grain effect foil coating and usually insulated with foam. It does cost more because there is more detail and designs (available) involved and more processes to finalise the product. However Everest are currently offering composite doors at a cheaper price than uPVC doors.

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What’s the difference between a conservatory and orangery?

In simple terms, a conservatory usually has a cornice (decorative piece around the soffits fascia’s and guttering), and also a pelmet inside for the downlights to sit and usually has a flat roof surrounding with a lantern in the middle.

You may have heard people umm-ing and arr-ing over whether an orangery or a conservatory provided the best option to extend their house. If you have, the first two questions that raced through your mind were probably:

  1. What on earth is an Orangery?
  2. How is it different to a Conservatory?

Don’t worry. You’re not alone and this is one of the most common questions we are asked when customers enquire about the options available to them, so we thought we’d clear it up for you to assist with your research.


For those of you who think “Orangery” sounds like something of a mystical term taken from a period drama, you’re not actually far off.

Between the 17th-19th century, if you were wealthy and part of the “fashionable” elite, the chances are you would have had an orangery (or orangerie) within the grounds of your home. Similar to a greenhouse, the extension was used for growing citrus trees in an environment that protected them from frosty weather to survive the winter months. Over time, as citrus fruits became more readily available for a cheaper fee, an orangery was used as a luxury nurturing ground for woody plants, shrubs and exotic plants.

The concept of an Orangery was born in Italy and architecturally adapted in Holland, and soon became viewed as a status symbol among the wealthy.


It is generally accepted that Conservatories were created as a by-product of Orangeries – the differentiation being that they were more for the protection of shrubs and herb plants than fruit.

A glass ceiling and wall allowed an optimum amount of light into the structure so the plants could grow more rapidly.

Another slight differentiation is that Conservatories tended to be built as an attachment onto the home, whereas that wasn’t necessarily the case with an Orangery, which could be its own supporting structure elsewhere within a garden. This contributed heavily to the change in viewpoint that the space didn’t have to be used solely for plantation but could offer an extension to their home.

Modern Differences

Today, there are still some key differences in terms of construction and design.

Conservatories generally act as a complete extension of the house, sharing the same or similar design features of the house. The décor compliments the house it represents in terms of colour and tone and it often feels just like an additional room.

As a rule, Orangeries still maintain that additional touch of elegance. It is different to the interior of the house, traditionally involving lots of brickwork and large windows within the construction as well as a glass roof to add that touch of class.

To summarise, Conservatories use minimal brickwork and are more about viewing the garden from a room that feels like a part the house, whereas Orangeries have more brickwork and are larger – considered by some as private spaces with an emphasis on luxury.


Conservatories are available in a variety of materials including uPVC, aluminium and timber, whereas Orangeries tend to be made from timber – although uPVC orangeries are available.

Both Orangeries and Conservatories use double glazing and modern glass technologies to keep the space warm in winter and cool in summer.

The base and walls are also fully insulated so both Orangeries and Conservatories are usable all year round. Some can also be fitted with self-cleaning glass to make window cleaning that bit easier.

Need more help?

Still not sure what’s right for you?

Our conservatories & orangeries are built to last, utilise multi-point locking systems as well as many other ultra-secure features as standard and, of course, they look absolutely stunning when viewed from inside or out.

Why not talk to one of our experts and discuss what’s right for you?

Conservatory extension or glass extension

Twenty five percent off extensions

One of the main differences between a conservatory and extension, apart from the price, is how they are treated within the Building Regulations and how this affects your home.

We offer great extensions varied sizes and great energy efficiency.

What are the rules, regulations, and planning permissions for building a conservatory?

Building regulations are not always required when building an extension or conservatory, it all depends on the work that is required, for example a knock through requires building regulations. Moving drainage pipes or gulleys and manholes requires waterboard approval. Everest will do all this for you plus offer planning permission fee free of charge, and offers the best double glazing against all the other UK companies.

Cheap garage doors electric or non electric

Visually Stunning:

Garage doors are integral to forming a visitor’s first impression, which is why we put as much effort into the appearance of your garage door as we do it's safety, security and durability.

More secure

Whatever you use your garage for, you can relax in the knowledge that every Everest Garage Door is expertly designed to keep your posessions safe and secure.


We understand that you may use your garage for more than just parking, so our garage doors are designed and built to utilise the room you have, rather than wasting it.


Our garage doors have been designed with safety in mind. Our electronic operators feature an automatic safety cut-out if there is an obstruction.

Tailored to your needs

Everest Garage Doors are bespoke, and built to complement your exact needs. Every door is individually manufactured to the exact size of your garage door opening, ensuring a perfect fit. 

Guaranteed for up to 10 years

Everest Garage Doors are built to last and, as such, our entire range comes with a host of comprehensive guarantees, including 10 years on our steel garage doors.

Should I buy uPVC sash or wood sash?

This really depends on the property you live in. Most Victorian properties would already have wood sash and would prefer to change there windows to wood sash. Wooden sash windows in double glaze do match the standard old single glazed windows and match the performance of uPVC windows.

Everest has done work at the Balmoral estate, for the royal family, Buckingham palace, royal college of Surgeons, Blackpool Tower, and Lambeth Palace. Most were wood sash windows in hardwood. These have a life expectancy of 50 years.

They do cost double than uPVC sash. But if you live in a conservation area then most likely will have to replace with wood sash. We can find this all out for you, get a quote here now and we will find it out.

What is the difference between hardwood and softwood sash?

Our hardwood is made from red grandis and costs a fraction more than softwood, and the main difference is the material.

Cost of repairing windows better than changing windows?

The cost of repairing windows on average is around £700. This would have included new seals, argon gas filled and double glazed and fixing the frame.

Upgrading your existing windows to uPVC will not cost much more than this, probably around £950-1000.

What are the benefits of secondary glazing?

Secondary glazing can stop noise by far but most companies do not offer the deep sound insulation, plus laminate and toughened glass all at once to ensure this.

These into place also stops the heat from escaping and the cold coming in.

Get a quote here now with our half-price sale on our products, plus if you make an enquiry using this form or calling 0800 009 6210 or 0208 865 1937 you will receive a further 10% discount.

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“Feel much safer now. Thank you Everest. Thank you Sean.”
−Miss Venus
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