Grow your home with an extension

More space to enjoy with your family

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Professional building services to grow your home. Extensions Bristol Bath

Wide range of affordable options to expand your home

We can manage the whole building process, from technical drawings to the finishing touches – we have it covered!


  • Completed extension in 10 days in most cases
  • One point of contact to minimise communication issues
  • Simple quote with no hidden charges
  • Product range which meets all British standard and building regulations
  • Reliable, professional service
  • Free home appointment from one of our designers

Home extension

House extension means what its title suggests, you can extend your house up, sideways and out to build the perfect house that you have always wanted without moving. If you ever want to build a garage, porch, extra room or just make your kitchen bigger without the nuisance of buying a whole new house then house extension is the way to go.

The type and extend of house extension depends on your budget and the location of your house. Speak to a sales designer today to get a quote.

Select a extension type

Guardian extension

Garden rooms

Kingspan wall system

Stop digging ground screws



Roof lantern

Home extension gallery

Get a stylish extension from Polar Bear Windows

Download our brochure 

All you need to know about Polar Bear Windows extensions

Free quote with no-obligation home appointment

    Free quote with no-obligation home appointment

      Voted the best in Bristol
      for customer satisfaction

      We achieved this by providing an award-winning service, quality assured products and money saving deals to all our customers. Ratings updated on June 2023.