Eco Building Ltd

Loft Conversion London

Loft Room

Reliable loft conversion specialists in London

If you are looking to add extra space to your house, a loft conversion can be the right choice for you. At Eco Building Ltd, we pride ourselves as the leading loft conversion experts in south London. We offer top-quality, bespoke loft conversions that will increase the value of your property as well as adding the space you need to your place.

Loft Conversion Space in London

Why consider a loft conversion in London?

  • It adds extra habitat space or storage loft in your existing house.
  • Simply adds value to your property.
  • More cost-effective than House Extensions.
  • No disruption occurs as most of the work is done in the roof space.

House Types

Victorian and Edwardian Houses

Victorian and Edwardian houses in London are a popular choice for loft conversions. Their high ceilings, large rooms, and traditional character make them perfect candidates for a conversion that maintains the original look of the building while adding value to the home. Loft conversions on these types of houses often require more planning than those on other types of buildings due to their intricate design, but the end-result can be a unique and attractive space that retains the character of the original building.

End of Terraced and Semi Detached Houses

If you own an end-of-terraced or semi-detached house, your home is the perfect candidate for a loft conversion. There are two main types of loft conversions that work perfectly for end-of-terrace and semi-detached homes : hip-to-gable loft conversions and dormer loft conversions. Both of these types of loft conversions offer a variety of benefits, including more space and improved energy efficiency. They also add value to the property and can make a big difference to the overall look and feel of your home.

1920s and 1930s Houses

If you own a 1920s or 1930s home in the UK, chances are it is well suited for a loft conversion. Whether you plan to build a dormer, hip to gable, or Velux loft conversion, this pre-war period property can be easily adapted for such an addition. The type of loft conversion that is best for you will depend on the existing structure of your home and roof, so it is important to get an assessment from a qualified professional.

Loft Conversion Types

Dormer Loft Conversion

The most popular Loft Conversion Options are easy to install and usually involve changing the structure of your roof. A new flat-roofed dormer is added, which significantly increases available space and light in your loft. These conversions are typically done on the sides or rear of the property.

Mansard Loft Conversion

If your home has a sloped roof and you're wanting to create more internal space, this is the perfect type of Loft Conversion for you. This involves replacing either one or both roof slopes that have steep sides and a flat top. It's ideal for semi-detached and detached properties.

Hip to Gable Loft Conversion

Most commonly, you'll find them on the side of detached, semi-detached or end-terraced properties. In this process, what's also known as the sloping side of the roof is removed and then the wall is built straight up to form a new vertical gable.

Velux Loft Conversion

With this type of Loft Conversion, you will maximize your loft space without changing the roof's structure. Little to no disruption or construction is needed because everything is done internally. Consequently, this option is perfect for any and all types of properties.

Our aim is to deliver a complete, hassle-free service from the design to the completion of your project, our friendly experts will take care of everything for you starting from working together with you to find out the best design suitable to increase your space until finishing the building process, always making sure it is completed to the highest standard. Get in touch today with the best loft conversion company in London today.

Loft Room

#1 Experts at Loft Conversions in London

Building a loft conversion in London is much easier with Eco Building Ltd as we ensure a distressed, professional service accompanied with a competitive price which will definitely make your decision easier.

Check out other building services:

» House Extension   » House Renovation   » General Builder » Home Builder

Call one of our friendly team now on 0207 859 4225 to discuss your loft conversion in London and get a free estimate.

What Else We Offer?

Electrical & Plumbing

Bathrooms & Kitchens

Floors & Walls

Painting & Decorating


Paver walkways

Household Repairs

Carpentry & joinery


Home extensions sample in London

Why Us?

Always on schedule
Quality assured
Reliable & competent
Competitive rates
We are creative

Areas We Cover

Lambeth        Southwark    Lewisham      Bexley      Greenwich     Bromley      Croydon         Merton       

Camden          Islintgon  Kensington     Hackney  Fullham     Wandsworth Hammersmith

Brent     Tower Hamlets  Ealing      Hounslow      Westminster


Most frequent questions and answers

The cost to convert your loft varies depending on the type of house and the required conversion. Most dormer conversions fall in the £37,500 – £60,000 range while more expensive options like hip-to-gable average around £45,000 – £65,000. The most costly Mansard loft conversions start at about £45,000 – but often exceed £70,000

 Absolutely! Adding a loft conversion is one of the best ways to make your home more energy efficient. As part of the building regulations, it is mandatory to install insulation upon conversion. There are two types of insulation available – these will be determined by either your local authority or an approved building inspector when they come to inspect your house. It is important to make sure you are using the right type of insulation for your needs and this can be determined by consulting a professional. By incorporating an energy-efficient loft conversion, you will reduce your household’s carbon footprint whilst also saving money on energy bills. 

 In most cases, yes. The current ceiling joists won’t be sturdy enough to support a floor if you convert your attic. You’ll need entirely new, up-to-code joists; your structural engineer can tell you how many and what strength they need to be. The new joists must go between the load-bearing walls in the loft and be a little higher than the existing ceiling plasterwork. The space below the end of each joist should stop any new floor from sagging or putting too much strain on the ceiling joists. You must get this right, as it will affect the safety and stability of your loft conversion. 

 The answer depends on what type of loft conversion you are having done. Rear dormer conversions on terraced or semi-detached properties typically take 4-6 weeks to complete, while hip-to-gable conversions on a semi-detached property usually take 5-7 weeks. These are just guidelines though, as there may be factors that can hinder our tradespeople on any given day, such as weather conditions. We have our in-house team so there’s no need to worry about subcontracted labour or last-minute letdowns. Rest assured that we will work hard and efficiently to ensure your loft conversion is finished promptly.  We are confident that we will complete your loft conversion work within the given timescales.

Loft conversions improve your quality of living. Loft conversions are ideal for small living spaces, such as flats. But before the work can begin, a few details must be considered. The first and possibly most important aspect is the leasehold implications imposed on the space you wish to convert. Before you use or alter the loft space in any way, make sure to read and understand the terms and conditions of your lease. If the lease implies that you own the loft, you may need consent from the freeholder to make changes. Most likely, you can find information about this procedure in your lease. However, if you’re considering making changes to a flat that requires permits, keep in mind that the next step would be to submit detailed design plans to your local council. Not only that, depending on the scope of the proposed changes, you may need approval from other residents if it affects their property as well. For example, water tanks or piping structures. Moreover, if the existing fire and safety regulations need to be altered, appropriate substitutes that comply with the new safety and fire regulations would have to be installed. Lastly, soundproofing all walls of the living space is ideal to avoid disturbing your neighbours. The process may be lengthy for a loft conversion in a flat, but the result promises tranquility and added space and value to your living space.