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Steel Frame Buildings Ltd

Bespoke Design Service

Here at Steel Frame Buildings Ltd, we know that one size certainly does not fit all. As such, we offer a bespoke design service for your project. Whether that be a reinforced floor for your heavy gym equipment or hot tub, additional acoustic insulation and soundproofing for your music studio, or perhaps just some guidance in ensuring your annexe meets all necessary regulations before your mother-in-law moves in. We love to create unique, individual designs personalised to you, so get in touch to discuss and let’s see what we can create!

 
 
 

Steel Frame Buildings Ltd

Decking and Patios

At Steel Frame Buildings, we also offer patios and decking, either complimentary to your new light gauge steel garden room or extension, or as a standalone project. There are a number of reasons to choose a light gauge steel deck as opposed to a timber frame.

 
 

Steel Frame Buildings Ltd

Extensions & Porches

Steel frame construction offers significant advantages for home extensions and porches. For extensions, integrated insulation maximises space and energy efficiency, supporting open-plan designs and increasing property value. For porches, steel's durability and resistance to weathering, rot, and pests ensure long-lasting, low-maintenance structures, ideal for outdoor living spaces.

 
 

Steel Frame Buildings Ltd

Our Lofts

Loft conversions are an excellent way for homeowners to maximise the potential of their properties, adding valuable living space and increasing property value. Among the various materials available for loft construction, steel frames have emerged as a superior choice due to their myriad advantages.

 
 

Steel Frame Buildings Ltd

Garden Rooms

A garden room can significantly enhance the value of a property, serving both as an attractive selling point and a versatile, functional space. Let’s explore a few key benefits of garden rooms, from their financial impact to their diverse uses.

 
 

Steel Frame Buildings Ltd

Foundatoins

Here at Steel Frame Buildings, we offer ground screw foundations for both our installations and also for supply at wholesale. Ground screw foundations offer numerous benefits compared to traditional concrete foundations, making them an increasingly popular choice in various construction projects.

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About Us

Steel Frame Buildings Ltd

Thank you for your interest in our company. Steel Frame Buildings are a family-owned company based in Essex. We are manufacturers of light gauge steel frames, for multiple uses, to include garden rooms, extensions, commercial units and much more.

We may be a little biased when we say our product truly is the best build method on the market, but the science backs us up! Our framework, unlike traditional build methods, will not rot or warp over time, and has a much faster build time.

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What we Do

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why Us

Why Choose Steel?

  • 1. Strength
    Steel is much stronger than wood, providing a higher load-bearing capacity. Its superior strength allows for more expansive designs with fewer support columns, ideal for both residential and commercial structures.
  • 2. Durability
    Steel is not vulnerable to rot, decay, termites, or pests that can damage wood. It is resistant to warping, cracking, and splitting, ensuring a long-lasting structure with minimal maintenance.
  • 3. Fire Resistance
    Steel is non-combustible, reducing the risk of fire damage. Unlike wood, steel does not burn, offering greater safety and retaining structural integrity in high-temperature conditions.
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Steel Frame Buildings | Extensions & Porches | Garden Rooms | Lofts | Annexes | Foundations & Ground | Screws | Decks & Bases | Tiny Homes | Floating Homes
Steel Frame Buildings Ltd

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FAQ'S

Do I need planning permission?

Please view our planning permission page for more information – click here

Why choose ground screws?

For more information, click here.

Ground screws are a modern alternative to traditional concrete foundations. They offer several benefits:

  • Quick installation with minimal ground disruption
  • No need for excavation or curing time
  • Environmentally friendly and removable if needed
  • Ideal for sloped or uneven ground

They’re particularly well-suited to light gauge steel structures due to the precision and load-bearing performance they provide.

Can my building go on an existing concrete base?

Yes – if your concrete base is level, structurally sound, and appropriately sized, your light gauge steel building can be installed directly onto it.

What guarantee do you provide?

Our light gauge steel frameworks come with a lifetime guarantee, giving you peace of mind in the strength, durability, and longevity of your structure. Other components may have their own specific warranties—please speak to your sales representative for full details.

Do you offer erection/installation of the buildings?

Yes. We offer a flexible range of services to suit your needs:

  • Supply-only – ideal for those managing their own build or working with contractors
  • Bronze Package – frame erection only
  • Silver Package – we deliver a fully weather tight shell, including the frame, panels, windows, doors, and roofing, making the building ready for internal works
  • Gold Package – full build including internal fit-out (subject to specification)

Do you supply the necessary fixings?

Yes, we can supply all required fixings, fasteners, and structural connections. Please speak with your sales representative to ensure you receive everything needed for your project.

What are light gauge steel buildings made from?

Our buildings are constructed using precision-engineered cold-formed steel sections. These are lightweight yet incredibly strong, non-combustible, and resistant to rot, pests, and warping—unlike timber.

How do you overcome thermal bridging in steel construction?

Thermal bridging occurs when heat transfers through materials with high conductivity, such as steel. To mitigate this, we use a layered construction method that includes:

  • High-performance insulation, continuous across surfaces
  • Thermal break barriers and non-conductive fixings where appropriate
  • Rigid and reflective boards to reduce heat loss

This ensures excellent energy efficiency and compliance with modern Building Regulations.

Will I get phone signal?

Yes! This is a common misconception. Our frames do not affect or interfere with your signal at all.

Are your buildings insulated?

Yes, we offer high-performance insulation options suitable for year-round use. Our insulation packages can be tailored to suit garden rooms, home offices, annexes, or commercial applications.

Can I customise the design?

Absolutely. Our systems are flexible and can be tailored in size, layout, finishes, and window/door placements. Whether you’re creating a home office, house, studio, or extension, we’ll work with you to bring your vision to life.

How long does it take to build?

Installation times vary depending on the specification, but generally:

  • Frames can be erected in as little as a few hours, depending on size.
  • Full builds (e.g. Gold Package) can take 1–3 weeks, depending on complexity

How energy efficient are your buildings?

Our systems can meet and exceed current Building Regulations for thermal performance. Paired with our advanced insulation methods, they offer excellent energy efficiency, low running costs, and year-round comfort. A recent EPC on one of our Annexe projects returned an A rating – it doesn’t get better than that!

What is the difference between planning permission and building regulations when it comes to garden rooms and extensions?

Please visit out planning permissions page for more information

Planning Permission

  • Governs:
    Building appearance, size, location, and use
  • Typically required for:
    Larger or more visible garden rooms
    Extensions that exceed permitted development limits
  • Can usually be avoided if:
    The structure is under 2.5m high (within 2m of a boundary)
    It covers less than 50% of your garden
    It’s not used as living accommodation
  • Determined by:
    Your Local Planning Authority

Building Regulations

  • Governs:
    Safety, structural performance, insulation, fire protection, electrics, and more
  • Typically required for:
    Most extensions
  • Garden rooms that are:
    Over 15m² in size
    Intended for sleeping or year-round use
  • May not be needed if:
    The garden room is:
    Under 15m², and not used for sleeping
    Under 30m², more than 1m from any boundary, and built using non-combustible materials
  • Checked and approved by:
    Building Control (either through your local council or an approved private
Steel Frame Buildings | Extensions & Porches | Garden Rooms | Lofts | Annexes | Foundations & Ground | Screws | Decks & Bases | Tiny Homes | Floating Homes Steel Frame Buildings | Extensions & Porches | Garden Rooms | Lofts | Annexes | Foundations & Ground | Screws | Decks & Bases | Tiny Homes | Floating Homes
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Unit 12 Ind Est, Steeple Road,
CM3 6AX
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