SMA Design & Build

Loft Conversion Specialists

Choose Your Perfect Loft Conversion

With over 30 years of experience and 1700+ completed projects, SMA Design & Build specializes in all types of loft conversions across London and Surrey.

Each type of loft conversion offers unique benefits and is suited to different property types and requirements. Our expert team will help you choose the perfect solution for your home.

Dormer Loft Conversion

Most Popular Choice

Dormer conversions are the most common type of loft conversion, involving the extension of the existing roof to create additional headroom and floor space. This versatile option works well with most property types.

  • Maximum headroom and floor space
  • Natural light from dormer windows
  • Suitable for most property types
  • Cost-effective solution
  • Planning permission usually not required
  • Can include en-suite bathroom
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From £25,000
From £30,000

Hip to Gable Conversion

Maximum Space Solution

Perfect for properties with hipped roofs, this conversion extends the sloping side of the roof to create a vertical gable wall, significantly increasing the usable space in your loft.

  • Substantial increase in floor space
  • Creates full-height walls
  • Ideal for hipped roof properties
  • Can accommodate multiple rooms
  • Excellent for family homes
  • Adds significant property value
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Mansard Loft Conversion

Premium Space Solution

The mansard conversion involves changing the angle of the roof slope to create almost vertical walls, providing the maximum possible space. This is the most comprehensive type of loft conversion.

  • Maximum possible floor space
  • Near-vertical walls throughout
  • Multiple rooms possible
  • Suitable for terraced properties
  • Significant property value increase
  • Planning permission usually required
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From £40,000
From £20,000

Velux Loft Conversion

Budget-Friendly Option

The most cost-effective loft conversion option, involving the installation of Velux roof windows without altering the existing roof structure. Perfect for properties with sufficient headroom.

  • Most affordable option
  • Minimal structural changes
  • Excellent natural light
  • Quick installation process
  • Permitted development rights
  • Energy-efficient windows
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How SMA Design & Build Can Help You

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Expert Consultation

Our experienced team will visit your property to assess the best loft conversion option for your specific needs, roof structure, and budget. We provide honest, professional advice to help you make the right choice.

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Planning & Design

We handle all planning permission applications, building regulations, and architectural drawings. Our comprehensive service ensures your project meets all legal requirements while maximizing space and functionality.

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Quality Construction

With over 30 years of experience and 1700+ completed projects, we deliver exceptional craftsmanship using premium materials. Every project comes with our 10-year structural guarantee for complete peace of mind.

Why Choose SMA Design & Build for Your Loft Conversion?

Free site visits and consultations
Fixed price quotations with no hidden costs
Checkatrade and Mumsnet recommended
Direct contracts - never sub-contracted
10-year structural guarantee included
Over 30 years of industry experience

Our Simple 4-Step Process

1

Free Consultation

We visit your property to assess your loft conversion options and discuss your requirements.

2

Design & Planning

We create detailed plans and handle all planning permissions and building regulations.

3

Fixed Price Quote

You receive a comprehensive fixed price quotation with no hidden costs or surprises.

4

Expert Construction

Our skilled team completes your loft conversion to the highest standards with minimal disruption.

Ready to Transform Your Loft?

Get your free fixed price quotation today and discover which loft conversion type is perfect for your home. Our expert team will guide you through every step of the process.

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