Loft Conversions
Space for growing families, new routines, and everything in between
Adding a loft conversion to your home has many benefits
Apart from being significantly more cost effective than moving house it also increases the value of your home. With so many homes requiring more space additional space, a loft conversion can create extra bedrooms, bathrooms or living spaces with lots of natural light and views.
Velux Loft Conversion >
Converting inside of the existing roof structure, a velux conversion is one of the quickest ways to create an additional bedroom or home office in your home. The installation of velux rooflights provide natural light and ventilation into your new space and can also create a fantastic feature with a wide range of options available.
< Dormer Loft Conversion
There are many types of roof dormers that can maximise your loft space such as flat or mono pitch dormers, mansard dormers and hip to gable conversions. Providing additional headroom and typically enough space for a double bedroom with ensuite, or even two bedrooms depending on your property.
Our team has the experience and knowledge to advise and give you the best options to suit your needs.
The Process
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Our surveyor visits your home, takes measurements, and designs a loft conversion that suits your needs and budget with a fixed price quote provided.
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We turn your ideas into detailed plans and realistic 3D visuals, so you can see exactly how your new space will look before work begins. We also handle all planning and building approvals for you.
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We take care of everything needed to get your home ready for the buil from scaffolding and skips to materials and access so your conversion starts smoothly and on time.
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Our experienced team manages the full build from start to finish, keeping you informed every step of the way and minimising disruption to your home.
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Most loft conversions are completed within 6–8 weeks. Once finished and signed off, we provide all certification and guarantees leaving you to enjoy your new space.
What our
customers say
Caroline Field - ⭐⭐⭐⭐⭐“Could not recommend Allied Welsh more. Their professionalism was second to none and the results speak for themselves. They made everything so easy from start to finish, and the builders even bought our toddler a little birthday present, which was unexpected and super thoughtful. They were friendly, respectful, tidy and were blown away by their craftsmanship. Thank you so much!”
Book your no obligation free design survey today
Loft Conversion FAQ’s
Answers to some of the most common questions we’re asked by homeowners considering a loft conversion in Wales or England.
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Most homes are suitable for a loft conversion, but the only way to know for certain is to carry out a proper survey. Factors such as roof structure, head height, access for stairs and the position of services all play a part.
If neighbouring properties have already been converted, that can be a good indicator, but every house is different. We regularly assess properties across Cardiff, Bristol and the surrounding areas and always recommend a free survey to give clear, accurate advice.
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We don’t give rough estimates, as they are often inaccurate and can be misleading. Every loft is different and factors such as roof structure, layout and materials can significantly affect the cost.
Instead, we offer a free survey and a free fixed price quotation. This provides an accurate cost based on your property and what you want to achieve, with no guessing and no pressure to go ahead.
Many customers arrange a survey even if they are only exploring the idea, as it gives clear information to consider now or in the future.
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Getting a quote is simple. Just get in touch with us by clicking here or calling us on 0800 458 3334 and we will arrange a free survey at a time that suits you. One of our surveyors will visit your home, look at the loft, talk through your ideas and explain what is possible.
After the visit, we provide a free fixed price quotation, clearly set out with no hidden extras and no obligation to proceed.
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No, you do not need any plans before getting a quote. We have an in house architectural team who handle all drawings, planning applications and structural calculations as part of the process.
If you already have plans from another architect, you are welcome to share them, but they are not required. We always carry out our own survey and produce our own technical drawings to ensure everything is practical, buildable and compliant with building regulations.
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Most loft conversions fall under permitted development and do not require planning permission. However, all loft conversions must comply with building regulations.
Building regulations cover areas such as structural safety, fire protection, insulation, stairs and ventilation. The rules can vary slightly between England and Wales, which we deal with regularly on projects in Cardiff, Bristol and the surrounding areas. We manage this process for you.
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Most loft conversions take several weeks, depending on the size and complexity of the project.
We carry out as much work as possible through the roof, which helps keep disruption inside the house to a minimum, particularly in the early stages. We are very mindful that many customers remain living in the property during the works.
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A well designed loft conversion can add significant value to a property by creating additional usable space, such as an extra bedroom or bedroom with en suite.
In areas such as Bristol and Cardiff, where space is often at a premium, loft conversions are a popular way to maximise a home without moving. The amount of value added depends on the property, location and quality of the conversion.
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Yes. Many older loft conversions were built to different standards and may not meet current building regulations.
We can assess an existing conversion and advise whether it can be upgraded to a compliant bedroom, including improvements to structure, fire safety, insulation and stairs where required.