Enhance your garden with Ultraframe's energy-efficient insulated garden rooms, ideal for work, relaxation, or entertaining throughout the year

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Transform your outdoor space into a stylish, functional retreat with Ultraframe Insulated Garden Rooms. These rooms offer a practical, year-round solution for your garden.

These energy-efficient rooms can serve as a home office, gym, or social space. They feature super-insulated columns that are five times more thermally efficient than traditional brick piers and a durable anthracite grey finish, making your new garden room both functional and visually appealing.

Select from designs such as The Studio for compact spaces or The Pavilion for a larger setting, both offering ample natural light and customisable features. The installation process is straightforward, and planning permission is typically not required. To learn more, schedule a complimentary home visit and discover how your garden can become a versatile, year-round retreat.

Benefits of an Ultraframe Insulated Garden Room:

Provides double the energy efficiency compared to other premium garden rooms on the market.
Features an interior space filled with natural light.
Requires minimal maintenance and resists fading over time.

Planning permission is typically not required for an Ultraframe Garden Room. If it is needed, we will manage the process to ensure a smooth, hassle-free experience.

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Garden Room Styles

Both Garden Room styles can be fully customised with full-length windows, insulated side panels, and large integrated fixed glass rooflights to create a unique space.

Garden Rooms by Ultraframe offer excellent thermal performance, making them an ideal solution for enhanced home living. Your new space can serve as a home office, gym, yoga studio, play area, summer house, or more.

The Studio Garden Room:

The Garden Studio features a stylish, contemporary, and compact design, ideal for smaller rooms or gardens. It does not require planning permission, even on a boundary. The Studio has a height of 2500mm and comes fully fitted with a reverse lean-to Livinroof.

If you require additional height, such as for a home gym, The Tall Studio offers a 2900mm height, making it an ideal option.

The Pavilion Garden Room:

The Pavilion is an orangery-style Garden Room that offers a more spacious environment than The Studio. This larger design is suitable for various uses, including a home gym, garden office, play area, or relaxation space. It features four large integrated shaped fixed rooflights in the Georgian style Livinroof, providing ample natural light.

The Premium Pavilion is the most luxurious model in the Ultraframe range. It offers all the benefits of The Pavilion, with insulated inline columns for enhanced thermal performance and style.

Looking for a Garden Room installer in Cheltenham, Gloucester, Hereford or Monmouth? Then here’s why you can feel good about working with Glevum:

We have been in business since 1984 and bring a wealth of knowledge and experience.
We are a leading FENSA-approved window and door installer based in Gloucestershire.
We are a leading supplier of Ultraframe. As part of their Ultra Installer Scheme, we are committed to great products and excellent service. You can trust us to deliver top-quality installation for your home.
We are a Kubu Pro Installer.
All our windows and doors include a 10-year GGFi-backed guarantee.
Our dedicated Service Department is here to support you.
More than 45,000 customers enjoy the security and quality of our windows and doors.
About half of our work comes from returning customers and recommendations.
We offer a range of Finance Options. Just ask for details during your free home visit or quote.

How can we help?

Send us an email or give us a call
0800 332255

Glevum Windows Doors Conservatories. Leading AWARD-WINNING Gloucestershire supplier and installer of Aluminium and uPVC.

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J Holyhead (Gloucestershire)
March 2026

“Very helpful and reassuring. My window and door were fitted by 2 very nice men and its prefect, we are so pleased, thank you so much.”

K Smith (Gloucestershire)
February 2026

“Very professional service from the quote to the fitting. Very pleased.”

J Ochiltree (Gloucestershire)
January 2026

“We have used Glevum many times over the last 25 years and have never been disappointed with the quality of workmanship, timely service and friendly approachable people.”

M Tattersall (Gloucestershire)
January 2026

"Excellent service and workmanship. Highly recommend."

M Tomlin (Gloucestershire)
November 2025

"Glevum were very professional throughout the purchase and installation and I am happy with the finished result. Installation team were courteous, neat and tidy throughout the process."

R Elliott (Gloucestershire)
November 2025