Mercia Premium Helios Summerhouse

SKU: SI-003-001-0008
Regular price £1,133.28 inc. VAT
Why Slicker? FREE Delivery - ALWAYS ✓Authorised Dealer ✓100% Secure Shopping ✓No Hidden Fees ✓Great Customer Service

The Premium Helios Summerhouse boasts a stunning, contemporary curved roofline that is sure to become a focal feature within your garden. With styrene glazed windows and French doors, the interior fills with light to create a bright and airy space. Whether you’re looking for an arts and crafts room or somewhere to spend summer evenings, the Helios could be a perfect fit!

We manufacture this building using premium materials to create a high quality build. The roof and floor are formed using tongue and groove boards that lock together for a robust and heavy-duty finish. The walls are constructed using 12mm Shiplap tongue and groove boards that create a tight seal against the elements and offer a strong and hard-wearing build. We provide high quality mineral felt with this summerhouse to ensure it has added protection against the weather.

We supply robust fixtures and fittings with this summerhouse, including a lock and key for security. We offer a 10 year anti-rot guarantee alongside our standard 1 year manufacturer’s warranty. Provided you treat the building once installed, and again annually, with high quality timber preservative and a waterproof top coat, your guarantee will be good to go! Manufactured here in the UK, using sustainably sourced and regulated timber.

Dimensions vary based on Garden Office size. Please see out attached floor plans and dimension images for accurate measurements. Of course, if you have any questions please get in touch here

  • 2 week lead time
  • 10 Year Anti Rot Garuntee

We provide FREE delivery to most mainland UK postcodes; however, a few postcode areas are outside our coverage.

Delivery and Installation Timeframes

We offer same-day delivery and installation services. While we strive to complete the installation on the same day, larger buildings may require more than one day for installation. You can find the estimated delivery and installation lead time for this product on the product page above. Our lead times are calculated in working days (Monday - Friday) and do not include Bank Holidays. These estimates are sourced from the manufacturers and serve as a general guideline, subject to fluctuations in demand. We provide this information in good faith to represent the expected delivery during that period. Please note that some remote areas might experience slightly longer lead times.

Delivery and Installation Procedure

Within 5 working days, Shire, the manufacturer, will reach out to you. This communication will be via either a text message or an automated telephone message. If a mobile number is not provided, the latter method will be used. This message will include the necessary website link where you can review and accept the assembly's terms and conditions. Prompt acceptance of these terms is crucial to avoid any potential delays. Once you've agreed to the terms and conditions, Shire will contact you within the specified timeframe to arrange the delivery and assembly date for your order. Please note that this process might take more time during peak seasons. Keep in mind that the installation team will require unobstructed access to your garden, a minimum of 18" clearance around the building, and a solid, level foundation. It's important to know that Shire's installation team cannot bring the building through your home, as they lack the insurance coverage for entering a customer’s property.

Delivery Day


The manufacturer, Shire, handles the delivery process. Typically, this item will be delivered using a 17-ton flat-bed vehicle, similar in size to a council refuse lorry. Deliveries are scheduled within the time frame of 7 am to 7 pm.

  • Treatment Type:Untreated
  • 10 Year Guarantee
  • Shiplap+ Tongue & Groove Cladding
  • 72mm Thick Double Skinned Walls
  • OSB & 12mm Tongue & Groove Roof
  • 16mm Tongue & Groove Floor
  • Double Door

Please see our FAQ page here

Shiplap vs Overlap