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Looking for high-quality insulated garden rooms in Northern Ireland & Ireland ? CG Garden Rooms designs and builds strong, stylish spaces for your home. As a family-run business with a reputation for quality and personalised service, we specialise in bespoke garden rooms tailored to your needs. Our garden rooms are warm in winter and cool in summer, and are specifically designed for year-round use.
Whether you need a home office, gym, or quiet space to relax, we can help. Insulated garden rooms are the perfect solution for anyone needing extra space for work, fitness, or relaxation.














We consist of a group of highly qualified tradesmen and are now very proud specialists in insulated garden rooms, serving all across Ireland and parts of UK.
We aim to have our insulated garden buildings completed within 3-5 days to minimise disruption for you.
Confirm your booking with a deposit, then then make part-payment on day one of installation followed by final payment on completion day.
*Finance options now available
We build modern garden rooms for Northern Ireland & Ireland that homeowners enjoy every day. Each room is made with care and built to last in all weather. As a family-run business, our team understands the needs of families and children, ensuring our insulated garden rooms are designed with comfort and practicality in mind.
We create spaces that add value to your home. Our garden rooms can be enjoyed by all family members for a variety of activities, from relaxation and hobbies to family gatherings and entertainment.
Our insulated garden rooms are made with high-quality materials to give you:
Our structures are built to suit a variety of needs and preferences, whether you want a home office, gym, or creative studio.
If you need insulated garden rooms in Northern Ireland & Ireland, we offer a simple and reliable solution.
Explore our range of bespoke garden rooms and get in touch via phone, email, or social media to discuss your ideas. You’re also welcome to visit our Garden Room Showroom just outside Newry to experience the quality of our work first-hand.
We provide a free, no-obligation quote and help you choose the ideal size, layout, and finish to suit your space and lifestyle. Once agreed, your booking is secured with a 10% deposit, followed by 50% on day one of installation and 40% on completion. Finance options available.
Your fully insulated garden room is built on site from start to finish, with most installations completed within 2–5 days, depending on your specifications.
Sit back and enjoy your new low-maintenance, year-round space, backed by our 10-Year aftercare warranty for complete peace of mind.
At CG Garden Rooms, we’re committed to bringing you high-quality, custom-designed garden rooms that suit your unique needs and style. Whether you’re looking for a home office, a personal gym, or a relaxing retreat, our garden rooms for sale offer the perfect solution for enhancing your outdoor space. With a dedicated team of experts, we ensure every garden room is crafted with precision, durability, and style.
We provide a range of design options tailored to meet each client’s preferences, including choices in size, layout, and external finishes. From the very first consultation to the final day of installation, we’re here to guide you every step of the way, ensuring a seamless experience that results in a garden room you’ll enjoy for years to come.
Our garden rooms are designed with your comfort and convenience in mind. Here’s why CG Garden Rooms is the trusted choice for homeowners across Ireland:
EXCELLENT
Based on 137 reviews
Posted on Google![]()
Stephen LovettTrustindex verifies that the original source of the review is Google.
Great service from start to finish. Highly recommendPosted on Google![]()
Gordon ElliottTrustindex verifies that the original source of the review is Google.
CG Joinery were an absolute pleasure to deal with. They were extremely professional with superb office and onsite teams. The CG Joinery product is excellent and as a company they are agile in meeting the clients needs and wants. 5 star rating without a shadow of a doubt.Posted on Google![]()
Eamon DynesTrustindex verifies that the original source of the review is Google.
Just want to say thanks to one of your lorry drivers. I didn't manage to get his name. I got stuck in a hedge this morning (just outside of Banbridge) and your driver along with a few other lads, got me hooked up and towed me out of the hedge. I am extremely grateful to him. I just want to say thanks again, if you could pass this on to your drivers. Thanks.Posted on Google![]()
Mary McCabeTrustindex verifies that the original source of the review is Google.
We are very happy with our garden room supplied by CG Joinery, All workmen arrived on the date that they had said they would. We got everything we asked for. Would recommend CG Joinery to anybody looking for a nice outdoor room,Posted on Google![]()
Tara MchughTrustindex verifies that the original source of the review is Google.
We recently had a garden room built by CG Garden Rooms and I honestly couldn't recommend them highly enough. From the first conversation right through to completion, the communication was excellent. Every question was answered quickly, timelines were clear, and the whole team was an absolute pleasure to deal with. Nothing was ever a problem. One thing that really stood out was that all materials had to be brought through our house to access the garden. I was quite concerned about this beforehand, but the team took such care and made the entire process completely seamless. They were respectful, tidy, organised and treated our home as if it were their own. The quality of workmanship is outstanding. The attention to detail, finish and overall build quality exceeded our expectations. It's clear that pride is taken in every aspect of the work. What can sometimes be a stressful project was made easy from start to finish thanks to a professional, hardworking and genuinely friendly team. We're absolutely delighted with the finished garden room and have already had so many compliments on it. If you're considering a garden room, I would have no hesitation in recommending CG Garden Rooms. Thanks again to all the team for such a fantastic job. Tara McHughPosted on Google![]()
Ryan OneillTrustindex verifies that the original source of the review is Google.
Absolutely fantastic experience from start to finish! We recently had a garden room, shed, and hot tub room built by CG Joinery and couldn’t be happier with the results. The whole process was incredibly smooth — the team completed everything quickly without any fuss or delays, which was a huge relief. What really stood out was the service. Conaill, Michael and Sarah we dealt with was friendly, professional, and genuinely helpful at every stage. They kept us informed, answered all our questions patiently, and clearly took pride in their work. You could tell they cared about getting every detail right. The finished garden room looks brilliant and has already become one of our favourite spaces. The shed is solid, practical, and exactly what we needed for storage, while the hot tub room is a real standout — beautifully finished and the perfect place to relax. Highly recommended if you’re looking for quality workmanship delivered with real care and efficiency. We wouldn’t hesitate to use them again!Posted on Google![]()
Johanne SmithTrustindex verifies that the original source of the review is Google.
We couldn’t be happier with our new garden room from CG Joinery. From the very first meeting right through to completion, the entire team has been fantastic to deal with. Their workmanship, attention to detail and professionalism have been outstanding. Nothing was ever too much trouble. The quality of the finish has exceeded our expectations, and it’s clear they take enormous pride in their work. The team were punctual, friendly, hardworking and left everything clean and tidy. It’s rare to find a company that delivers exactly what they promise, but CG Joinery certainly did. If you’re thinking of adding a garden room to your home, I wouldn’t hesitate to recommend CG Joinery. A first-class company delivering a first-class product. Thank you to everyone involved—we absolutely love our new space!Posted on Google![]()
Tadgh McCauleyTrustindex verifies that the original source of the review is Google.
Top class work by the CG Joinery. No problem in building the garden room to my specific requirements. Highly recommendPosted on Google![]()
Jane MullaneTrustindex verifies that the original source of the review is Google.
I cannot speak highly enough about the CG Joinery team. Everyone from the office to the guys who come and build are a pleasure to deal with and go above and beyond to advise and support. You won’t go wrong with them and you’ll have a gorgeous room at the end!
Our small garden rooms are perfect for smaller spaces. They are smartly designed to give you comfort without taking up too much room.
Great uses include:
A small garden room can provide a dedicated space for your favorite activities, giving you a private and functional area separate from your main home.
We also offer modular garden rooms that are quick to install and easy to customise.
A small garden room can transform even the smallest garden into a functional retreat, enhancing both the appearance and usability of your outdoor space.
We build strong composite garden rooms and composite garden buildings that last longer than timber.
Our range of composite garden rooms is available in a variety of styles and sizes, so you can choose the perfect fit for your garden and needs.
Composite garden rooms can also feature large glass doors, providing easy access and allowing plenty of natural light into your space.
Our composite cladding garden room options give a clean and stylish finish.
If you want composite garden rooms in Ireland & NI, we are ready to help.
Our bespoke garden rooms NI & Ireland are built just for you. We listen to what you need and design a space that fits your life.
You can choose:
Bespoke garden rooms can be designed as creative studios, such as a music studio or art studio, tailored to your needs.
We make sure your garden room works exactly how you want. Your studio can be customized for soundproofing, natural light, or any creative pursuit.
Need a better place to work from home? Our garden offices give you a quiet and focused space.
Our garden office builds include:
It is a great way to separate work from home life.
A garden office provides a professional workspace that is separate from the main house, helping you maintain focus and productivity.
Our modular garden rooms are built for speed and ease. They are made in sections and put together quickly on site. Modular garden rooms can also be configured as a modern cabin, perfect for relaxation or work.
This means:
You can customise the floor and ceiling design to suit your comfort and style preferences, creating a bright and inviting space. Large windows and doors allow plenty of fresh air into your modular garden room, enhancing the connection to your garden and improving indoor air quality.
Our garden houses give you extra living space without major building work.
They are great for:
You get more space and added home value.
If you are looking for garden rooms Northern Ireland & Ireland, CG Garden Rooms is here to help.
Contact us today for a free quote and start planning your new space.
We’re dedicated to making high-quality garden rooms accessible to everyone. With flexible financing options, you can explore ways to fund your garden room project without stretching your budget. Our team can guide you through the process with a simple, no-obligation soft credit check.
To see the quality and variety of our garden rooms, we invite you to visit our showroom. Here, you can explore the range of finishes, layouts, and materials in person and get inspiration for your project. Our team will be on hand to answer any questions and provide guidance based on your preferences.
With CG Garden Rooms, you’re not just getting an extra room—you’re investing in a versatile, beautiful space that enhances your lifestyle. Whether it’s for work, relaxation, fitness, or creativity, our garden rooms are custom-built to enrich your home and create value for years to come.
Installation is typically completed within 2-5 days, depending on the size and complexity of the project. Our efficient process ensures minimal disruption and a quick turnaround.
In most cases, garden rooms don’t require planning permission as long as they fall within certain height and size restrictions. However, we recommend checking local regulations or consulting with us for advice.
Contact us via phone, email, or visit our showroom to discuss your vision. We’ll guide you through the design options and answer any questions.
Yes, we offer a 10-year aftercare warranty to address any issues that may arise after installation, ensuring long-lasting quality and durability.
Our garden rooms: Bespoke garden rooms · Insulated garden rooms · Garden offices · Garden pods · Garden rooms with a bathroom · Garden rooms in Ireland · Prices · Finance
Garden room guides: Choosing the right garden room · Do garden rooms add value? · How to spot a cheap garden room · Common garden room mistakes · Design mistakes to avoid · Insulation and heating options · Garden rooms for small gardens · Garden rooms as guest accommodation · Garden room home offices · Planning rules in Ireland · Maintenance tips
€1500 off all garden rooms if you book in July. Don't miss out!