FLAT ROOF SINGLE STOREY EXTENSION INSTALLERS

Give your home a modern upgrade with a sleek flat roof extension! Its modular design makes it exceptionally versatile, so you can turn it into a cosy living room, a stylish dining area, or anything else you have in mind.

Finance options available
10-year manufacturing warranty
Building regulations approved

TRANSFORM YOUR HOME WITH OUR INNOVATIVE FLAT ROOF EXTENSIONS

Want to elevate your home? Our clean, contemporary flat roof extensions can breathe new life into your space. Built with the latest high-performance materials, they offer exceptional insulation, durability, and comfort, so you can enjoy your new room all year round.

Best of all, our unique modular design means you can enjoy your new space up to six times faster than with a traditional extension, saving you a remarkable 60% on costs. Good for you and for your bank account!

DESIGN YOUR DREAM FLAT ROOF EXTENSION

Give your home a personal touch with our wide range of customisation options! From the colour of your gutters to the style of your brickwork, we can create an extension that seamlessly blends with your house.

Worried about a dark space? No problem. By upgrading your roof with skylights or roof lanterns, you can flood your new space with sunshine and panoramic views of the outside world. Also, we offer a range of stunning doors, including sliding doors and bifolds, which allow lots of light into your home extension.

Our flat roofs are as beautiful as they are durable. Engineered to withstand the elements, they require minimal upkeep while maintaining their strength and stylish appearance for years to come.

GET YOUR FREE SINGLE STOREY EXTENSION QUOTE TODAY

Please fill out this form with some details about your home and what you need. A team member will contact you shortly to discuss a quote.

WHAT MAKES UP OUR FLAT ROOF SINGLE STOREY EXTENSIONS

DURABASE SYSTEM

Our extensions are built on top of a durable steel base system with a stylish brick slip border, complete with 100 mm floor insulation and 22 mm chipboard flooring.

160MM WALL STRUCTURE

The base is topped by 6 × 2” structural grade timber wall sections, covered with a 15 mm OSB outer skin.

PREMIUM INSULATION

125 mm multifoil honeycomb insulation is pre-fitted into all wall and roof sections for maximum thermal efficiency.

EXTERNAL CLADDING

The structure is covered with innovative exterior PVC cladding that features an authentic embossed wood-effect finish, complete with all finishing trims.

EPDM ROOF RUBBER

Your roof will be topped by a tough rubber Firestone EPDM membrane that stands strong against whatever weather comes its way.

EXTRAS

Looking to flood your home with natural light? Add bespoke skylights or windows designed to perfectly complement your roof's unique shape.

FLAT & LANTERN ROOF EXTENSION OPTIONS

Our lanterns are placed on top of a flat roof base. If you'd like, we can install the base without adding a lantern. Here are your two options:

LANTERN ROOF

Our lantern roofs feature a flat base topped with a glass structure that rises like a greenhouse. Perfect if you’re looking for a brighter space with more vertical room.

FLAT ROOF

Our flat roofs feature a clean, low-profile design ideal for creating a modern atmosphere. Optional skylights allow for customised light and shade.

I recently had an Edwardian hipped extension completed by Single Storey Extensions, with Ash tiles, and the outcome was amazing. The level of professionalism demonstrated by their team from the beginning to the end of the project was truly impressive. Their attention to detail and commitment to quality was evident in every aspect of their work. Getting Single Storey Extensions to handle our Edwardian-hipped extension was an excellent choice. I strongly recommend their services to anyone looking to undertake a similar job. Their dedication to delivering top-notch results is genuinely praiseworthy.

Sean Barraclough

12 December 2023

I am very happy with my new extension by Single Storey Extensions! From the get-go, their team was incredibly professional, guiding us through each step with ease. It's been a breeze working with them, and we're so glad we chose their expertise for our project. If you're thinking of an extension, we can't recommend them enough - truly top-notch service!

Jake Field

14 November 2023

We couldn't be happier with the extension we've just completed, thanks to Single Storey Extensions. Their team's professionalism shone through from start to finish, making the whole process a dream. It's clear why they come so highly recommended. Their attention to detail and customer service were second to none. We're absolutely thrilled with the results. Deciding to go with Single Storey Extensions was one of the best decisions we've made. We're so pleased with our new space and would urge anyone considering an extension to get in touch with them.

Jacob Kearl

19 November 2023

Really thrilled with the extension, by Single Storey Extensions, the team were really helpful all the way through the process from design, survey and installation and aftercare. It was super simple and easy, much fast cleaner and cheaper than a traditional build. Highly recommended

Joanna Allegra Madison

2 February 2024

Had no problems with the company or the building construction everything came on time had all went together perfectly The materials are very good I had it put up in the summer I know it is winter, it’s holding the heating very well I’ve had an great experience and would recommend them to anyone I also use their recommended builders Limitless Construction Services and they are very good nothing was too much I’ve added some photos of the two extensions I had one on the rear of the house and a porch I can only say you will not regret going with this company

David Asplin

11 December 2023

VISIT OUR SHOWROOM

Curious about our pitched roof extensions? Come see them firsthand at our spacious Somerset showroom! With a huge range of options on display, you can explore all of our different styles, sizes, and layouts up close.

Our expert team will be on hand to guide you through the process, offering personalised advice and answering any questions you may have. You can also witness the craftsmanship behind our products with a tour of our factory next door!