Mercia Summerhouses

Make your dreams of a luxury retreat or a humble hideaway a reality with a Mercia Summerhouse: plush and well-made in all of the right places! Whether you desire a play room for the little ones or a quaint nook for late-night reading, the Mercia brand delivers with a range of light, open designs that are sure to exceed your expectations.
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  1. Mercia 4m x 6m Insulated Garden Room (with FREE Installation)
    Mercia 4m x 6m Insulated Garden Room (with FREE Installation)
    £12,100.99
    £11,499.99
    More info

    Mercia 4m x 6m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 4m x 6m is perfect if you're in need of a home office, additional living space or somewhere to accommodate guests. has been designed and built for year round use, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise fr...
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    Save £601.00
  2. Mercia 6m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)
    Mercia 6m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)
    £13,109.99
    £12,499.99
    More info

    Mercia 6m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)

    Description:
    <p>Create your dream extended living space with a spacious and airy 6 x 4m Insulated Garden Room with Side Shed. A roomy 5m x 4m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option.</p> <p>In addition to a new living space, the added bonus of a practical 1m x 4m side shed creates additional storage space without adding m...
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    Save £610.00
  3. Mercia 3m x 2m Insulated Garden Room (with FREE Installation)
    Mercia 3m x 2m Insulated Garden Room (with FREE Installation)
    £6,399.99
    £5,999.99
    More info

    Mercia 3m x 2m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 3m x 2m Insulated Garden Room creates the perfect way to make the most of your garden, while in the comfort of the indoors all year round, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise from the outside is greatl...
    View Product
    Save £400.00
  4. Mercia 3m x 4m Insulated Garden Room with Side Shed (with FREE Installation)
    Mercia 3m x 4m Insulated Garden Room with Side Shed (with FREE Installation)
    £9,599.99
    £9,099.99
    More info

    Mercia 3m x 4m Insulated Garden Room with Side Shed (with FREE Installation)

    Description:
    Create your dream extended living space with a spacious and airy 3 x 4m Insulated Garden Room with Side Shed. A roomy 2m x 4m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 4m side shed creates additional storage space without adding more clutter to your home. Id...
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    Save £500.00
  5. Mercia 2m x 3m Insulated Garden Room (with FREE Installation)
    Mercia 2m x 3m Insulated Garden Room (with FREE Installation)
    £6,399.99
    £5,999.99
    More info

    Mercia 2m x 3m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 2m x 3m Insulated Garden Room creates the perfect way to make the most of your garden, while in the comfort of the indoors all year round, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise from the outside is greatl...
    View Product
    Save £400.00
  6. Mercia 3m x 5m Insulated Garden Room (with FREE Installation)
    Mercia 3m x 5m Insulated Garden Room (with FREE Installation)
    £10,399.99
    £9,999.99
    More info

    Mercia 3m x 5m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 3m x 5m Insulated Garden Room is perfect as a home office, a place to entertain guests or simply an area to relax and unwind all year round, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise from the outside is grea...
    View Product
    Save £400.00
  7. Mercia 3m x 3m Insulated Garden Room (with FREE Installation)
    Mercia 3m x 3m Insulated Garden Room (with FREE Installation)
    £7,399.99
    £6,999.99
    More info

    Mercia 3m x 3m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 3m x 3m Insulated Garden Room is an incredibly versatile building that can be used all year round thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise from the outside is greatly reduced. Each window used in this build...
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    Save £400.00
  8. Mercia 6m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)
    Mercia 6m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)
    £12,299.99
    £11,799.99
    More info

    Mercia 6m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)

    Description:
    Create your dream extended living space with a spacious and airy 6 x 3m Insulated Garden Room with Side Shed. A roomy 5m x 3m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 3m side shed creates additional storage space without adding more clutter to your home. Id...
    View Product
    Save £500.00
  9. Mercia 5m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)
    Mercia 5m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)
    £11,100.99
    £10,499.99
    More info

    Mercia 5m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)

    Description:
    Create your dream extended living space with a spacious and airy 5 x 3m Insulated Garden Room with Side Shed. A roomy 4m x 3m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 3m side shed creates additional storage space without adding more clutter to your home. Id...
    View Product
    Save £601.00
  10. Mercia 3m x 6m Insulated Garden Room (with FREE Installation)
    Mercia 3m x 6m Insulated Garden Room (with FREE Installation)
    £11,599.99
    £10,999.99
    More info

    Mercia 3m x 6m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 3m x 6m is perfect if you're in need of a home office, additional living space or somewhere to accommodate guests. has been designed and built for year round use, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise fr...
    View Product
    Save £600.00
  11. Mercia 5m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)
    Mercia 5m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)
    £12,109.99
    £11,499.99
    More info

    Mercia 5m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)

    Description:
    Create your dream extended living space with a spacious and airy 5 x 4m Insulated Garden Room with Side Shed. A roomy 4m x 4m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 4m side shed creates additional storage space without adding more clutter to your home. Id...
    View Product
    Save £610.00
  12. Mercia 4m x 3m Insulated Garden Room (with FREE Installation)
    Mercia 4m x 3m Insulated Garden Room (with FREE Installation)
    £9,099.99
    £8,599.99
    More info

    Mercia 4m x 3m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 4m x 3m perfect for those looking to add a modern extension to their garden&#33; This all-purpose garden room has been designed and built for year round use, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise fro...
    View Product
    Save £500.00
  13. Mercia 4m x 5m Insulated Garden Room (with FREE Installation)
    Mercia 4m x 5m Insulated Garden Room (with FREE Installation)
    £11,100.99
    £10,499.99
    More info

    Mercia 4m x 5m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 4m x 5m perfect for those looking to add a modern extension to their garden&#33; This all-purpose garden room has been designed and built for year round use, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise fro...
    View Product
    Save £601.00
  14. Mercia 3m x 3m Insulated Garden Room with Side Shed (with FREE Installation)
    Mercia 3m x 3m Insulated Garden Room with Side Shed (with FREE Installation)
    £7,999.99
    £7,699.99
    More info

    Mercia 3m x 3m Insulated Garden Room with Side Shed (with FREE Installation)

    Description:
    Create your dream extended living space with a spacious and airy 3 x 3m Insulated Garden Room with Side Shed. A roomy 2m x 3m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 3m side shed creates additional storage space without adding more clutter to your home. Id...
    View Product
    Save £300.00
  15. Mercia 4m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)
    Mercia 4m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)
    £9,599.99
    £9,099.99
    More info

    Mercia 4m x 3m Insulated Garden Room with Side Shed (with FREE Installtion)

    Description:
    Create your dream extended living space with a spacious and airy 4 x 3m Insulated Garden Room with Side Shed. A roomy 3m x 3m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 3m side shed creates additional storage space without adding more clutter to your home. Id...
    View Product
    Save £500.00
  16. Mercia 4m x 4m Insulated Garden Room (with FREE Installation)
    Mercia 4m x 4m Insulated Garden Room (with FREE Installation)
    £10,199.99
    £9,599.99
    More info

    Mercia 4m x 4m Insulated Garden Room (with FREE Installation)

    Description:
    <p>This 4m x 4m perfect for those looking to add a modern extension to their garden&#33; This all-purpose garden room has been designed and built for year round use, thanks to the Eco-quilt insulation that features in the walls, roof, and floor. The walls are consisting of three layers, a 16mm tongue and groove outer layer, a 44mm gap in the middle that is filled with insulation, and a 12mm tongue and groove inner wall. The thick walls mean heat is trapped in and any entering noise fro...
    View Product
    Save £600.00
  17. Mercia 4m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)
    Mercia 4m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)
    £10,599.99
    £10,199.99
    More info

    Mercia 4m x 4m Insulated Garden Room with Side Shed (with FREE Installtion)

    Description:
    Create your dream extended living space with a spacious and airy 4 x 4m Insulated Garden Room with Side Shed. A roomy 3m x 4m Garden Room provides a snug, yet long living space ideal for relaxing, work or hobbies. If you'd like to take your work away from your home, but don't fancy a commute, an Insulated Garden Room is an ideal option. In addition to a new living space, the added bonus of a practical 1m x 4m side shed creates additional storage space without adding more clutter to your home. Id...
    View Product
    Save £400.00
  18. Mercia 4m x 3m 44mm Wall Retreat Log Cabin
    Mercia 4m x 3m 44mm Wall Retreat Log Cabin
    £2,999.99 £2,599.99
    £2,499.99
    More info

    Mercia 4m x 3m 44mm Wall Retreat Log Cabin

    Description:
    #html-body [data-pb-style=PCSNWID]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=PCSNWID],#html-body [data-pb-style=UPIS03M]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}#html-body [data-pb-style=CWJ099Q]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;backgro...
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    Save £500.00
  19. Mercia 5m x 3m 44mm Wall Retreat Log Cabin
    Mercia 5m x 3m 44mm Wall Retreat Log Cabin
    £3,499.99 £3,049.99
    £2,999.99
    More info

    Mercia 5m x 3m 44mm Wall Retreat Log Cabin

    Description:
    #html-body [data-pb-style=GKDJ5RN]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=GKDJ5RN],#html-body [data-pb-style=WGO1K4R]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}#html-body [data-pb-style=C2FMXOC]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;backgro...
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    Save £500.00
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Why Buy a Mercia Summerhouse?


The heart of the matter is, with a summer house or shed sourced from Mercia, a world of customisation lies at your fingertips. As all Mercia Summerhouses come in a natural finish, you can treat and paint your way to your dream garden build. 
If you are less inclined towards decoration, explore Mercia Summerhouses in a wide range of sizes and designs: guaranteed to withstand the harsh elements in terms of sturdiness and the use of high-quality wood.  Awaken your inner explorer and delve into the wilderness of our bespoke summer houses and Mercia sheds today.