
HOUSE EXTENSIONS & CONVERSIONS IN BERKSHIRE
At KAS Construction & Project Management Ltd, we specialise in house extensions and conversions in Windsor and Berkshire that add space, value, and style to your home. With over 30 years of experience, we handle everything from design to build, keeping things smooth and stress-free. Every project is tailored to your vision and backed by our commitment to quality.
Reach out for a free consultation and build something great together.
WE ARE SPECIALISTS
FREE CONSULTATION
FAMILY RUN BUSINESS
BESPOKE HOUSE EXTENSIONS
We specialise in building house extensions of all sizes, from single-storey to multi-level builds. Every project is designed to match your existing home seamlessly. Our team handles the whole process—from initial design and planning permission to final finishes—creating functional, attractive spaces that blend perfectly with your property.

STRESS-FREE LOFT CONVERSIONS
Our loft conversion services help you transform unused attic space into a comfortable, stylish room. Whether you want a skylight, dormer, or mansard conversion, we'll tailor the design to your needs. We manage the entire project, including planning, building control, bathroom installations, and finishing touches.


GARAGE CONVERSIONS THAT ADD VALUE
We turn underused garages into liveable spaces such as home offices, guest rooms, or playrooms. Every garage conversion is completed with meticulous attention to detail and complies fully with regulations. Our team ensures the final result is practical and beautifully integrated into your home.
SEAMLESS PROJECT MANAGEMENT
We manage your house extension or conversion project from concept to completion with expert oversight. We ensure your build is on time, within budget, and carried out with minimal disruption. Our reputation is built on trust, quality, and delivering spaces that enhance everyday living.
CALL TODAY TO TRANSFORM YOUR SPACE
Our house extensions and conversions are carefully planned and beautifully built to suit your lifestyle and property.
