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    Which Type Of Conversion

    With a variety of options available which is right for you?

Loft Conversion Types

With so many options to choose from which loft conversion type is right for your home? Here we explain the differences between each of the loft conversion types.

The following are the four main types of loft conversions:

  • Dormer Loft Conversion
  • Hip to Gable Loft Conversion
  • Mansard Loft Conversion
  • Velux Loft Conversion

Dormer Loft Conversion:

A dormer loft conversion is an extension of the existing roof; it projects vertically from a sloping roof. This creates additional floor space and headroom within the building.

There are four varieties of dormer loft conversions:

  • Flat Roof Dormer
  • Gable Fronted Dormer
  • Hipped Roof Dormer
  • Shed Dormer

The flat roof dormer is usually the most common option for a loft conversion due to it being the most cost effective and offering the most additional internal space. The gable fronted dormer is more attractive and consists of a gable wall extension, built up to the existing ridge line with a roof section built outwards to the new gable end. A hipped roof dormer is similar to the gable, with three sloping planes of a hipped roof converging at the ridge of the dormer. The shed dormer is comparable to the flat roof dormer but slopes downwards at an angle shallower than the main roof.

Velux Loft Conversion:

A Velux loft conversion is the most cost effective option to convert your loft as it doesn’t involve any external alterations. The roof line remains unaltered, as the Velux windows are installed flush and in turn leaving the original roof structure unaffected.

Mansard Loft Conversion:

A mansard loft conversion is installed to the rear of a property, with a flat roof and a back wall that slopes inwards at an angle of 72 degrees. Windows of this type of conversion are usually housed within small dormers.

Hip to Gable Loft Conversion:

A hip to gable loft conversion extends your property on the sloping side and as such is a popular choice for owners of semi-detached properties, replacing the sloping roof with a vertical wall (the gable) at the end to the same height as the ridge and filling space in between. Should your property have two sloping roofs, both could be replaced with vertical walls. This would provide a double hip to gable loft, creating even more additional space.

Expert Tip - Loft Windows

"The most common solution is to follow the existing pitch line of the roof and install a rooflight (from a reputable supplier such as Velux). The rooflight is fitted by removing the tiles and battens where the window will be placed. The rafters are cut to fit the unit, and the others reinforced to take its weight. The frame is then fitted and flashings are installed before finishing off the surrounding tiling."

Why Choose Extra Room?

Our Staff

This is exactly what it means; our staff are the only people who are involved in your project. Extra Room Ltd does not sub-contract your project out to other contractors.

All operatives are employed by Extra Room Ltd we are always contactable by phone and email to deal with any queries or questions that may arise. All of our operatives have an Extra Room Ltd uniform and identification badge so that they are instantly recognisable.

Site Rules

We have very strict guide lines for all projects, all staff must wear the Extra Room Ltd uniform and personal protection whilst at work i.e. boots, high visibility jackets and safety helmets where necessary.

There is a no smoking policy at work and where possible we will provide a discrete portable toilet facility so that your home stays your home with no intrusion. No radios are to be played on your project. We understand that whilst your project is being completed this should not intrude upon your neighbours who are already being submitted to the noise of building works.


Extra Room Ltd provides a full time Project Manager who will be involved from the very start of the project until completion, he will provide all certificates and completion certificates which will then be held in a project file and presented to you at the end. They will also ensure that all site rules are followed and report directly to the Director of the company.

Unrivalled Guarantee

All structural works come with a 10 year no quibble guarantee, of which upon completion of your project you will receive a certificate of guarantee. All other works i.e. plumbing and electrics will come with a standard 2 year guarantee.

No Hidden Costs

Once we have surveyed your project, a quotation with a complete breakdown of costs will be presented to you. This break down will be individually priced so that you can clearly see where your budget will be spent and if at any time you would like to remove an item you will instantly know what the saving will be.

In the event that you decide that you would like to add additional works, these additions will be separately quoted and an instruction sheet issued that yourself and the Project Manager will both sign so that there is no hidden costs and you are in control of your budget at all times.

Peace of Mind

Before any works commence, Extra Room Ltd will provide you with a break down sheet of all the works to be completed within your project. This includes an empty box at the end of the description, yourself and the Project Manager will go through this sheet and check that you are completely satisfied with the completed works and then tick the box together. At this point you will only have ever paid for works that are fully completed and you will not be asked to pay any monies upfront or before the works are complete.

Further Information for Loft Conversions

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