Extensions
Mansi Building & Renovations is your trusted extension builder, specialising in creating beautiful, functional, and value-adding house extensions. Whether you need more living space, an open-plan kitchen-diner, an extra bedroom, or a dedicated home office, we provide a comprehensive service from initial design concepts to the final touches. Our experienced team ensures a smooth process, delivering high-quality extensions built to last.
Your Dream Extension is Right Around the Corner
At Mansi Building & Renovations, our work focuses on delivering high-quality house extensions that enhance both the functionality and value of our clients’ homes.
From creating open-plan living spaces and additional bedrooms to complete structural alterations, our team manages every aspect of the build. We carry out all necessary structural work, including steel beam installations and wall removals, ensuring each extension is finished to a high standard and built to last.
Our House Extension Services
As dedicated extension builders, we offer a wide range of services to expand and enhance your home:
Single-Storey Extensions
Create a brighter, more open ground floor with a single-storey extension that blends seamlessly with your existing home. Ideal for open-plan kitchen-diners, family rooms and home offices, we handle everything from groundwork and structure through to insulation, electrics, plumbing and finishes. The result is a practical, well-detailed space designed around how you live.
Double-Storey Extensions
A double-storey extension is one of the most effective ways to add significant space and long-term value. Whether you need extra bedrooms, a larger bathroom, a growing family layout or improved flow across both floors, we manage the build with careful structural planning and consistent workmanship. We ensure the new addition feels cohesive with the original property inside and out.
Rear Extensions
Rear extensions are perfect for transforming the heart of the home, opening up the back of the property to create better light, space and garden connection. We can incorporate wide openings, roof lanterns, large glazing and sliding or bifold doors to maximise natural light. All structural work is completed safely and professionally, with a finish that feels like it has always belonged.
Side Extensions
A side extension is an excellent way to unlock unused space, often creating wider kitchens, utility rooms, boot rooms or improved hallway layouts. We focus on smart design and clean structural execution so the new space enhances the overall flow of the home. From foundations to final finishes, we deliver a seamless extension that improves day-to-day living.
Wrap-Around Extensions
Wrap-around extensions combine side and rear extensions to create a substantial, open and versatile ground floor. This approach is ideal for large kitchen-diners, family spaces and modern open-plan layouts with better zoning and storage. We coordinate all structural changes, services and finishes to deliver a cohesive transformation with a high-quality end result.
Kitchen Extensions
A kitchen extension gives you the space to design a kitchen that truly works for your household, with room for dining, entertaining and family life. We can help you create a layout with improved natural light, better flow and strong indoor to outdoor connection. Our team manages the full build, coordinating all trades to achieve a durable, premium finish.
Why Choose Mansi Building & Renovations?
A Considered Approach
We understand that extending a home is as much about how it feels as how it functions.
Our approach focuses on clarity, coordination and craftsmanship at every stage. From early planning discussions through to final handover, projects are professionally managed with minimal disruption and absolute attention to detail, allowing clients to move forward with confidence.
Versatile Skillset
A successful extension should enhance the original architecture rather than compete with it.
We work closely with architects, designers and structural engineers to ensure every element, from foundations to finishes, is considered, compliant and built to last.
Where required, we can liaise directly with your professional team to ensure a smooth and well-coordinated build process.
Local Experience
Our extensions are defined by precise structural execution, high-quality materials, finishes and clean, well-managed sites.
The result is a refined addition that feels cohesive, balanced and enduring.
Ready to get started?
If you're ready to begin your journey from idea to reality then contact us today for a site visit to discuss your options.
Featured Project: Rear Kitchen Extension in Gerrards Cross
At this classic English home, the client wanted a brand new kitchen that can withstand everyday use, as well as serve as the heart of the home for gatherings.
The kitchen features a bespoke marble island with a built in tap and sink, allowing for more room for a dual oven system, as well as a new hob for maximum cooking space. The new kitchen increased storage space ,which was essential for the client as this was a big issue before the renovation.
Creating Luxury Extensions in Bucks, Berks & Oxon For A Decade
We've been working in the beautiful backdrop of the Home Counties for the last decade.
A Considered, Well-Managed Process
From the outset, we take time to understand your brief, priorities, and how you intend to live within the space. This allows us to provide clear guidance, transparent costs, and a structured programme, enabling informed decisions before work begins. Throughout the build, projects are carefully managed with a single point of contact and regular, meaningful updates. Every stage is planned, coordinated, and delivered with precision, ensuring a smooth and controlled experience from start to finish.
1. Initial Consultation
We meet on site to discuss your requirements, budget, and timescales in detail, ensuring the project is clearly defined before moving forward.
2. Costing & Timeline
You will receive a fully itemised quotation and a realistic construction schedule, providing clarity and certainty from the beginning.
3. Managed Construction
A dedicated project manager oversees all works, coordinating trusted trades and maintaining an organised, safe, and professional site at all times.
4. Review & Handover
Before completion, every detail is carefully reviewed to ensure the standard of finish meets our expectations. Only when you are happy, we are happy.
Start Your Project with Confidence
Arrange an initial consultation
with mansi building & Renovations
A decade of experience creating beautiful spaces in Bucks, Berks and Oxfordshire.
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