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Extensions & Alterations

Whether you need a single-storey kitchen extension, double-storey family extension, or garage conversion, we provide expert construction solutions tailored to your specific requirements. With extensive experience in all types of extensions throughout the Sheffield area, we ensure seamless integration with your existing property whilst maximising both space and value.

Extensions and alterations require specific structural knowledge and building regulations to execute safely and effectively. As experienced builders specialising in property extensions, we offer comprehensive service for all project types, ensuring optimal design, structural integrity, and high-quality finishing that enhances your home.

Looking for extension and alteration expertise? Contact us at 07401179253 to discuss your requirements across Dinnington, Sheffield, Rotherham, Worksop, and surrounding areas.

home extension sheffield

Extensions & Alterations

At Yellowstone Building Services, we understand that every property has different potential for extension and alteration. Our construction services cater to homes with varying architectural styles and space requirements. We provide honest advice about the most appropriate extension type for your property, considering factors like garden space, existing structure, planning constraints, and your intended use of the additional space.

All our extension work comes with full building regulations compliance and structural warranties, giving you confidence in the quality of our workmanship. We maintain the same high standards across all our building services, regardless of the project size or complexity.


Single & Double Storey Extensions

For properties with suitable garden space, extensions offer excellent value for expanding your home. Our comprehensive extension services include:

  • Foundation excavation and construction
  • Structural steelwork and beam installation
  • Brickwork and external wall construction
  • Roofing and weatherproofing
  • Window and door installation
  • Internal finishing and decoration

Our extensions meet all current building regulations and planning requirements, creating functional and attractive additional living space.


Kitchen Extensions

Kitchen extensions remain one of the most popular home improvements. Our comprehensive kitchen extension services cover:

  • Rear and side return extensions
  • Open-plan kitchen dining areas
  • Bi-fold door installations
  • Kitchen island and utility integration
  • Underfloor heating installation
  • Electrical and plumbing services
  • Tiling and flooring installation

We understand the specific requirements of kitchen extensions and provide reliable service to create the heart of your home, with particular attention to natural light, ventilation, and practical layouts that work for family life.


Garage Conversions & Alternative Solutions

Beyond traditional extensions, we also offer expertise in:

  • Garage to living space conversions
  • Outbuilding conversions
  • Internal wall removal and alterations
  • Porch and entrance extensions
  • Conservatory base construction
  • Garden room foundations
  • Accessible extension solutions

These alternative solutions can provide additional space without the full cost of traditional extensions, making better use of existing structures. We provide clear explanations of the advantages and considerations for each option.


FAQs

How much does a house extension cost?

House extensions typically start from around £1,200 per square metre for single-storey extensions, with double-storey extensions ranging from £1,500-£2,000 per square metre. Kitchen extensions with high-end finishes may cost more depending on specification. The exact cost depends on the extension size, foundation requirements, and finishing standards required. We provide detailed, no-obligation quotes after assessing your property and understanding your requirements. Our pricing is transparent and competitive across Dinnington, Sheffield, Rotherham, Worksop, and all areas within our 30-mile service radius.

Do I need planning permission for an extension?

Many single-storey rear extensions fall under permitted development rights and don't require planning permission, particularly those under 6 metres for terraced houses or 8 metres for detached houses. However, side extensions, double-storey extensions, and those in conservation areas typically require planning approval. All extensions require building regulations approval regardless of planning requirements. We can advise on planning requirements during our initial assessment and handle applications where necessary. We recommend checking with your local planning authority early in the process.

How long does an extension take to build?

Extension timescales vary significantly depending on size and complexity. Single-storey extensions typically take 8-12 weeks, whilst double-storey extensions may take 12-16 weeks to complete. Kitchen extensions often take 10-14 weeks including fitting out. Weather conditions can affect foundation and roofing work timescales. We provide realistic timeframes during quotation and maintain regular communication throughout the project. We aim to minimise disruption to your daily routine, though some inconvenience is inevitable during construction, particularly when connecting to existing services.

Can you convert my garage into a living space?

Yes, we can convert garages into functional living spaces such as home offices, playrooms, or bedrooms. This typically involves insulating walls and roof, installing proper flooring, upgrading electrical systems, and improving ventilation. Conversion costs are generally lower than building new extensions, making them excellent value for money. We'll assess your garage's suitability during our initial survey and advise on any structural modifications required. Planning permission is often not required for garage conversions, though building regulations approval may be necessary depending on the intended use.
Extension Specialists

Expand Your Living Space

Expert house extensions, alterations, and conversions throughout Dinnington, Sheffield, Rotherham, Worksop, and surrounding areas.

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