Garden Room Kits: What They Are and Why They’re a Brilliant Choice
A garden room is one of the smartest ways to add space to your home without the cost, mess and months of disruption that come with a traditional extension. Whether you need a quiet home office, a gym, a hobby room or somewhere to unwind at the end of the day, a garden room kit gives you a high quality, purpose-built space at a fraction of the price of a bespoke build.
Here’s what garden room kits are, what’s included, and why so many UK homeowners are choosing to build their own.
What Is a Garden Room Kit?
A garden room kit is a pre-manufactured garden building that’s delivered to your door in one complete package, ready for you to assemble. Rather than hiring builders to construct a room from scratch on site, the hard work is done in the factory. Every component is precision cut to size, so all you need to do is put it together.
At Pent Haus, every kit includes the floor, walls and roof, ToughWood® cladding, double-glazed UPVC doors and windows, an EPDM rubber roof with guttering and downpipe, your chosen internal finish, plus all the screws, foam and adhesives you need. You even get a toolbox and access to online tutorial videos. Browse our ready-to-go garden room kits to see the layouts available.
Easy to Build, Even Without Trade Skills
The biggest worry most people have is whether they can actually build it themselves. The good news is that garden room kits are designed with DIYers in mind. You don’t need to be a carpenter or tradesperson.
Panels arrive pre-cut and numbered, and doors and windows come pre-glazed and pre-hung. There’s no cutting, no measuring joints and only minimal tools required. If you can use a drill, follow a written build sequence and feel comfortable on a stepladder, you’ve got the skills. All you need is a second pair of hands, as two people are needed to lift and fix the larger panels safely.
Up and Running in Days, Not Months
Traditional builds can drag on for months, with weather delays, trades to coordinate and plenty of mess. A garden room kit cuts that down dramatically. Pent Haus Signature SIPs™ kits typically go up in around three days with two people, while ToughFrame™ kits usually take four to five days.
Because the exterior arrives pre-clad, your room is weather tight from day one. That means less time on the building site and more time actually enjoying your new space. It’s why our process is built around a simple promise: configured in 3 minutes, manufactured in 3 weeks, assembled in 3 days.
Warm and Usable All Year Round
A garden room is only useful if you can use it whatever the weather. Cheaper sheds and summerhouses often turn into a freezer in January and a greenhouse in July. A well-insulated garden room kit solves that.
Our Ready to Go range uses Structural Insulated Panels (SIPs), where the insulation is built into the walls, floor and roof rather than packed in afterwards. The result is a warmer, more airtight room with fewer cold spots, lower running costs and better soundproofing. It’s ideal for a home office, music room or garden bar you’ll use twelve months of the year.
Low Maintenance, Long-Lasting Good Looks
Nobody wants to spend every summer sanding and staining their garden building. Pent Haus kits are clad in ToughWood® engineered cladding, made from compressed wood strands with a protective overlay, wax coating and zinc borate treatment. You get the natural look of timber without the upkeep, and it’s backed by a 10-year warranty.
Choose from six finishes (Cedar, Weathered Oak, Burnt Oak, Silver Birch, Mountain Ash and Granite) to suit your home and garden.
Exceptional Value Compared to a Bespoke Build
Because the design work is already done and the components are made efficiently in our Mid Wales factory, garden room kits offer exceptional value. Pent Haus kits start from £8,789.60, and you can secure yours with a 20% deposit. You also save on labour by building it yourself, or you can bring in a local installer if you’d prefer.
And it doesn’t stop once the room is up. You can retrofit our electrics pack using the concealed wiring channels built into the panels, add an internal finish or upgrade your flooring later on.
Usually No Planning Permission Needed
In most cases, garden room kits don’t need planning permission. Our kits are designed to fall within permitted development rules: single storey, a maximum eaves height of 2.5 metres and an internal floor area of up to 30 square metres. Rooms between 15 and 30 square metres need to sit at least 1 metre from a boundary. There are exceptions, such as land in front of the house, listed buildings and National Parks, so it’s always worth checking before you order.
Is a Garden Room Kit Right for You?
If you want extra space quickly, affordably and without a long, disruptive build, a garden room kit is hard to beat. You get a professional quality, fully insulated room that’s easy to assemble, low maintenance and built to last.
Ready to get started? Explore our full range of garden room kits, choose your layout and start planning your new space today. Prefer something bespoke? Our friendly team is always happy to chat through your options.
Ready to Start Your Build?
Building your own garden room is one of the most rewarding home improvement projects you can take on. Not only do you save thousands on installation costs, but you also end up with a bespoke space built by your own hands.
Have questions about bases, delivery, or choosing the right size? Contact our team today or explore our range of self-build kits to get started!
Explore our ready-to-go Garden Room Kits or use our online configurator to design your dream space today!
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