Single Storey Extensions
Single Storey Extension Builders in Cambridgeshire & Hertfordshire.
Creating beautiful living spaces
From build to finish.
At CB Building Services, we specialise in single storey extensions that seamlessly expand your home’s ground floor. Based in Royston, we’ve transformed hundreds of homes across Cambridgeshire and Hertfordshire, creating stunning single storey additions that maximise space, natural light and functionality.
Why choose us
Trusted expert builders
- Members of the Federation of Master Builders
- Our accreditations include Gas Safe registration and NICEIC certification.
- TrustMark Approved
- Government-endorsed contractor, we’re committed to quality, reliability, and consumer protection.
- No outsourcing
- The same team that quotes your project will see it through to completion.
- From build to finish
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From constructing your extension to fitting units, plumbing and electrics.
What we do
From compact rear extensions to impressive wrap-around designs.
We create every style of single storey extension, from modest rear additions that open up your kitchen-dining area to substantial wrap-around designs that completely transform your ground floor living. Whether you’re looking to create a bright family room, an open-plan kitchen-diner, or a peaceful home office, we bring the same meticulous attention to detail and craftsmanship to every project, regardless of size.
- Natural light specialists
- Flexible planning
- Rear extensions
- Side return extensions
- Wrap-around extensions
- Garden rooms
- Orangery-style extensions
- Home office extensions
“I had a full wrap around extension completed by Charlie and his team and the finish was perfect. All work completed to a high spec within time. The team were happy to work weekends to get the job done with minimum interference. I can’t recommend CB Building services enough and thanks once again Charlie for giving me my dream house.”
How we work
Your single storey extension journey from design to completion.
Since single storey extensions often involve opening up existing walls and creating new connections to your garden, so we plan each phase carefully to keep your home comfortable and secure. We handle every aspect of your project, from initial planning through to final interior finishes, ensuring your new single storey space integrates perfectly with your existing home and lifestyle needs.
Helpful advice & latest work
Discover our latest projects and read helpful tips about extending your home.
Blog
Advice for UK homeowners looking to extend and renovate their property.
Exceptional Kitchen Extension
A beautifully crafted kitchen extension delivered with flawless attention to detail.
Double-Storey Transformation
A stunning extension featuring an open-plan kitchen with bifold doors and two spacious bedrooms.
Trusted single storey extension specialists
Your single storey extension is a significant investment in your home’s future, which is why we maintain the highest professional standards throughout every stage of construction. As TrustMark approved contractors and proud members of the Federation of Master Builders, we’re recognised for our commitment to quality workmanship, reliability and complete customer satisfaction.
Ready to expand with a single storey extension?
Contact CB Building Services today for a consultation about your single storey extension project. Let’s create the perfect ground floor space that enhances how your family lives and connects with your garden.