
How We Work
At Reltic Extend, we believe a home extension is far more than just a building project – it’s an investment in your comfort, lifestyle, and your family’s future. The right extension can completely transform the way you live, giving you the space to grow, relax, and enjoy your home in new ways.
That’s why every project we take on is guided by three principles: transparency, trust, and a proven process. From the very first consultation to the finishing touches, we make sure you always know what’s happening, why it matters, and how it benefits your home.
Whether you’re considering a rear extension to open up your kitchen, a side extension to make use of unused space, or a wraparound extension for maximum impact, our team delivers spaces designed around the way you and your family live.
For those looking for even greater transformation, a double-storey extension can provide both a spacious ground floor and valuable new rooms upstairs, while a kitchen extension can create the true heart of your home.
We also know that planning can feel overwhelming, which is why our dedicated planning services make the process simple and stress-free – from applications and building control to party wall agreements.
With Reltic Extend, you don’t just get a builder – you get a partner who listens, supports, and delivers a home that’s personal to you. Discover more about our design & build process and see how we can make your project smooth, transparent, and enjoyable from start to finish.
Contract & Peace of Mind
Our clients sign their contract directly with Reltic Extend, giving you complete transparency and security at every stage. All payments follow a clear, agreed schedule, and we – as the main contractor – take full responsibility for every element of your project. This means you can be confident your extension will be managed professionally and remain fully under control.
Project Management & Client Support
From day one, you’ll have direct contact with the Reltic Extend customer care team, who will guide you through the entire process. We closely monitor progress, keep you updated, and are always available to answer your questions – during the build and long after completion. Learn more about our Design & Build Process and see how we keep everything running smoothly.
Smart Online Platform
To make communication even easier, we give you access to our dedicated online platform, available 24/7. With it, you can:
- message us, your architect, and your contractor directly,
- view live progress photos from site,
- upload your own images and feedback,
- add comments or request adjustments straight into the project.
This modern tool ensures your extension journey is transparent, quick, and stress-free – and that no detail is ever overlooked.
Contact us today to learn more.

Our Experience
Over the years, we’ve delivered dozens of successful kitchen extensions, rear extensions, and full home projects across London. Each one is tailored to our clients’ unique needs – from contemporary kitchens with garden access to large, multi-level family transformations.
We’re proud of the quality of our work and are always happy to show you completed projects so you can see for yourself the high standards we bring to every extension.
01.Kitchen Extensions
Gain up to 40% more space with a bright, practical kitchen designed for cooking, dining, and family life.
02.Rear Extensions
Open the back of your home for a light-filled, versatile living area tailored to your family’s lifestyle needs.
03.Side Extensions
Increase width, light, and value while creating extra space for dining, relaxing, or work, all seamlessly integrated.
04.Wraparound Extensions
Maximise unused space on two sides for a stunning open-plan layout with great flow and natural light.
05.Double Storey Extensions
Double your space with extra rooms upstairs and down, boosting comfort, value, and modern living.
06.Planning
We manage all permissions, drawings, and approvals, saving you time, stress, and costly delays in your project.
FAQs – How We Work
Wondering who we are and how we can support your home extension project? You’re not the only one – many of our clients like to understand our approach before getting started. To make things easier, we’ve put together answers to the questions we’re asked most often about our team, the way we work, and how we guide you through every stage of your extension journey.
We plan every stage in detail before work begins. With a clear timeline, regular site meetings, and a dedicated Project Manager, we make sure everything stays on track. If anything unexpected comes up, we’ll keep you informed and adjust quickly so there are no surprises.
Yes – you’ll always have a dedicated Project Manager and access to our customer care team. This ensures you know exactly who to turn to with questions, updates, or feedback at any time.
As much as you’d like. Some clients prefer us to handle every detail, while others enjoy being hands-on with finishes, layouts, or materials. We’ll guide you through the process and make sure your ideas are included at every step.
We understand plans can evolve. Small changes are usually easy to accommodate, and for bigger adjustments we’ll provide clear options, costings, and timelines so you can make an informed decision.
You’ll have access to our online client portal, where you can see progress photos, add comments, and message our team 24/7. We’ll also arrange regular check-ins to keep everything transparent.
Every project comes with a 10-year structural warranty, along with all the necessary building control certificates. This gives you peace of mind that your extension has been built to last.

Experts in bespoke rear, side, wraparound, kitchen, and double-storey extensions across London.
Our Services
Contact Us
- 4th Floor, Silverstream House, 45 Fitzroy St, London W1T 6EB
- 020 3576 2851
- office@relticextend.co.uk