Designed, Delivered, and Installed

Insulated Summer Houses

Forget drafty, aging spaces. Our next-generation summerhouses redefine outdoor living, offering modern retreats perfect for year-round enjoyment.

Experience true comfort and connection to nature in a space that seamlessly blends indoor living with outdoor views. Thanks to their industry-leading QuadCore insulation, sleek steel facing, and expansive double-glazed doors, our summerhouses make the perfect spot for morning yoga sessions, afternoon reading, and everything in between.

Sleek, Modern Summerhouses

Tired of your summerhouse sitting empty for most of the year? Our insulated solutions
offer a space beyond single-glazed glass and tired timbre. Think modern finishes, double glazing, and full insulation, perfect to enjoy 365 days a year. With customisable features and finishes, you can create a space that’s as unique as you are.

Choose a Garden Bar Style

The Snug

Micro Summerhouse

  • Fully Insulated
  • Dimensions: 3.3 x 2.2m
  • Starting Price: £15,598.80 (incl. VAT)

The Studio

Mini Summerhouse

  • Fully Insulated
  • Dimensions: 4.4m x 3.3m
  • Starting Price: £16,071.60 (incl. VAT)

The Lodge

Small Summerhouse

  • Fully Insulated
  • Dimensions: 5.5m x 3.3m
  • Starting Price: £18,366 (incl. VAT)

The Lodge Plus

Medium Summerhouse

  • Fully Insulated
  • Dimensions: 6.6m x 3.3m
  • Starting Price: £19,292.40 (incl. VAT)

The Retreat

Large Summerhouse

  • Fully Insulated
  • Dimensions: 5.5m x 4.4m
  • Starting Price: £19,726.80 (incl. VAT)

The Retreat Plus

Extra-Large Summerhouse

  • Fully Insulated
  • Dimensions: 6.6m x 4.4m
  • Starting Price: £20,066.40 (incl. VAT)

The Estate

XXL Summerhouse

  • Fully Insulated
  • Dimensions: 7.7m x 3.3m
  • Starting Price: £27,598.80 (incl. VAT)

Insulation to Installation

Fixtures and Fittings

Our standard models come equipped with essential features like full insulation, double-glazed French doors, and recessed power outlets, providing a comfortable and functional base for your dream space.

Standard Inclusions

  • QuadCore Insulation (Roof, Wall, and Floor Panels)
  • Mains Connection Ready*
  • Standard Double French Doors
  • 2x Standard French Door Handles

Optional Add-Ons:

  • RADIX Ground Screw Foundation (see brochure to learn more)
  • Heating and Air Conditioning
  • Woodgrain Effect Composite Decking
  • Electrics Package
  • Luxury Vinyl Flooring
  • Premium Bifold Doors
  • 2x Premium Handles
  • Internal Lighting
  • External Lighting
Get Your Quote

Why Choose an RJ Insulated Summerhouse?

Designed and installed by UK leaders in insulation and garden rooms, our summerhouses offer a comfortable and inviting space to relax, unwind, and enjoy your garden.

Which? Approved Summerhouse Installer

You may be wondering if our service is truly trustworthy. To assuage any concerns, several organisations have glowingly approved our service. RJ Insulation is Which? and Trusted Trader Approved.

Full list of organisations that we are members of, or have been approved by:

  • Which?
  • Trading Standards
  • National Insulation Association
  • IWA Deposit and Guarantee Protection

Our Process

01

Reach Out to Our Team

Have a vision in mind? Share it with us over the phone. We’ll gather essential details about your site and requirements and will be happy to make recommendations aligned with your needs.

02

Download a Free Brochure

Immerse yourself in the possibilities with detailed photos of our summerhouse range, finishes, fixtures, and fittings. Explore dimensions and starting prices to get your project planning underway.

03

Virtual Site Survey

Immediately following your call, our team will use satellite imagery technology and your provided information to recommend the ideal summerhouse type, size, and placement. We’ll even discuss foundation options if needed.

04

Get an Estimated Quotation

Receive a comprehensive and accurate estimated quotation of within a couple of hundred pounds, detailing your summerhouse specifics, standard inclusions, additional work (if any), and a projected timeline.

05

Assessors Visit and Sign-Off

Once you’re happy with the quotation, give us the green light, and we’ll confirm a date for our Assessor to visit your home to undertake a RAMS (risk assessment and method statement), and confirm the price to the penny. Upon a signed completion of the paperwork and paid deposit, we’ll start the manufacturing process.

06

Manufacturing and Delivery

Your summerhouse will be constructed using premium materials, including steel facing, QuadCore insulation, and double-glazed doors. Expect delivery within 4-6 weeks.

07

(Optional) Foundation Laying

Whilst you’re waiting for delivery, If needed, our team will efficiently install a durable timber-suspended base using ground screws, designed to support even the most demanding uses.

08

1-Day Install

Once your foundation is ready, our expert team will have your summerhouse fully assembled and weatherproofed within a single day.

09

Enjoy

Step in and sit back, or transform your new summerhouse into a reflection of your passions and interests. It’s now yours to use throughout the year.

Case Studies

Discover RJ Insulation Projects

Sheep Wool Loft Insulation Installation in Bures

This customer lived in a 12th-century cottage in Bures with a freezing cold loft. He came to us looking for a natural, s [...]
Learn More

Multifoil Loft Insulation Installation in Welton

This Multifoil loft insulation installation took a 1960s home into the new millennium, boosting both efficiency and comf [...]
Learn More

Recycled Plastic Loft Insulation Installation in Chelmsford

These customers had a lovely, modern mid-terrace house. They wanted to get rid of all their old fibreglass in favour of [...]
Learn More

Customer and Which? Testimonials

Both our previous customers and the accreditors at Which? have given us glowing feedback! We are very grateful to have been given so many well-earned 5-star reviews.

Get Started with an RJ Garden Bar

Ready to book a call or start your summerhouse project? Download our brochure to see our full range, or fill in the contact form for a callback.

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    FAQs

    Garden Bar FAQs

    In most cases, you can build a summerhouse in your garden without planning permission, as long as it adheres to certain permitted development rights. Our summerhouses are typically designed to meet these criteria.

    For example, if your summerhouse is situated more than 2 metres from any boundary, it can have a maximum eaves height of 2.5 metres and an overall height of 4 metres for a dual-pitched roof, or 3 metres for any other roof type. If it’s within 2 metres of a boundary, the maximum eaves and overall height is 2.5 metres.

    However, it’s important to note that permitted development rights can vary depending on your location and specific property. We always recommend checking with your local council’s planning department to confirm the regulations that apply to your project.

    Our summerhouses are designed to suit a variety of budgets and needs. Our starting prices, inclusive of VAT, are as follows:

    The Snug: Micro Summerhouse, 3.3 x 2.2m, £17,146 inc. VAT
    The Studio: Mini Summerhouse, 4.4m x 3.3m, £19,890 inc. VAT
    The Lodge: Small Summerhouse, 5.5m x 3.3m, £24,480 inc. VAT
    The Lodge Plus: Medium Summerhouse, 6.6m x 3.3m, £26,350 inc. VAT
    The Retreat: Large Summerhouse, 5.5m x 4.4m, £27,200.00 inc. VAT
    The Retreat Plus: Extra Large Summerhouse, 6.6m x 4.4m, £27,880.00 inc. VAT
    The Estate: XXL Summerhouse, 7.7m x 3.3m, £27,818 inc. VAT

    These prices provide a starting point. Your final cost will depend on your chosen finishes, fixtures, and any additional features or customisation. Contact our team for an estimated quotation today.

    Not all summerhouses are created equal when it comes to insulation. Many traditional summerhouses are built with outdated timber frames and single glazing, making them prone to drafts and temperature fluctuations. These older designs often struggle to provide comfortable conditions beyond the summer months, limiting their usability throughout the year.

    At RJ Insulation, we believe a summerhouse should be a year-round retreat. That’s why all our summerhouses come with industry-leading QuadCore insulation in the walls, ceiling, and floor as standard, ensuring your space stays warm in the winter and cool in the summer. No more shivering on chilly evenings or sweltering on hot days – our insulated summerhouses provide a comfortable environment you can enjoy 365 days a year.

    The ideal size for your summerhouse hinges on how you plan to use it and the available space in your garden.

    If you’re seeking a room for solo relaxation or quiet reading, our Snug model (3.3m x 2.2m) is a perfect fit.

    For couples or small families who want a versatile space to unwind or entertain a few guests, our Studio (4.4m x 3.3m) or Lodge (5.5m x 3.3m) models offer a comfortable balance of space and functionality.

    If you have a larger garden and envision hosting gatherings or pursuing hobbies that require ample space, our Retreat Plus (6.6m x 3.3m) or Estate (7.7m x 3.3m) models provide the room you need to create a truly multi-functional space.

    Preparing the ground for your summerhouse is crucial for its stability and longevity. We recommend opting for a ground screw foundation, like the RADIX system, which offers several advantages over traditional concrete bases.

    Ground screws are faster and easier to install, requiring minimal disruption to your garden. They’re also more environmentally friendly, with significantly lower carbon emissions and reduced excavation compared to concrete. These solutions are also highly versatile, adapting to various terrains, including slopes and uneven ground.