Create Stylish, Usable Space All Year Round
A purpose-built garden room is one of the easiest and most attractive ways to expand your home. Whether you need a peaceful office, an inspiring creative studio or a warm, insulated space for hobbies and relaxation, we design and build garden rooms tailored to your needs.
At Winchester Builders, we combine thoughtful design with high-quality materials to create structures that are practical, long-lasting and beautifully finished.
Our Service Area
Winchester Builders work across Winchester and the wider Hampshire area. Popular locations we cover include South Wonston, Weeke, Fulflood, Harestock, Colden Common, Shirley, Eastleigh, Chandlers Ford, Alresford and Otterbourne.
Create More Space With a High-Quality Garden Room
Every Winchester garden room begins with a free site visit. We assess your garden’s access, ground conditions, and orientation, then discuss how you plan to use the space. From this consultation, we develop designs tailored to your requirements and budget. We advise on sizing, window placement, electrical needs, and heating options. You receive detailed drawings showing exactly what we will build, along with a fixed-price quotation covering everything from groundwork to final decoration. Once you are happy with the design and quote, we agree a start date that works for your schedule.
Proper foundations ensure your garden room remains stable and level for decades. We prepare the site, clearing vegetation and levelling the ground as needed. Depending on your garden’s conditions, we install concrete pad foundations, ground screws, or adjustable pedestals. Winchester gardens vary considerably, from level lawns to sloping plots in areas like St Cross and Sleepers Hill, and we select the foundation system best suited to your site. This phase typically takes one to two days. With foundations complete, we have a solid, level base ready for construction to begin.
With foundations in place, construction moves quickly. We build the structural timber frame, install insulation to ensure year-round comfort, and fit the roof covering. External cladding goes on next, followed by windows and doors. Inside, we complete the electrical installation, including sockets, lighting, and heating connections. Internal wall linings, skirting, and any built-in features are fitted before final decoration. Throughout construction, we keep your garden tidy and minimise disruption. Most Winchester garden rooms reach this stage within two to three weeks, with the structure watertight and the interior taking shape.
The final phase brings everything together. We complete all decoration, install flooring, and fit any finishing touches. Electrical systems are tested and certified. We conduct a thorough inspection, addressing any snags before handover. You receive all documentation including electrical certificates, warranty information, and maintenance guidance. We walk you through your new garden room, demonstrating heating controls, windows, and electrical systems. Once you are completely satisfied, the space is yours to enjoy. From first consultation to handover, most Winchester garden room projects complete within three to four weeks.
✔ Useable All Year Round
Our garden rooms are built with proper insulation, modern glazing and durable materials — keeping them warm in winter and cool in summer.
✔ Adds Value to Your Home
A professionally built garden room offers excellent return on investment and improves the overall appeal of your property.
✔ Tailored to Your Lifestyle
Home office, home gym, art studio, therapy room, cinema room — whatever your vision, we design your space around how you want to use it.
Transform unused attic space into a bright, practical new room. We design and build loft conversions that add space, value and character to your home, with expert structural work and high-quality finishes throughout.
loft conversions
From minor roof repairs to full replacements, we handle all aspects of roofing work safely and efficiently. Whether it’s fixing leaks, replacing tiles or installing a new roof, our team ensures your home stays protected with long-lasting, high-quality workmanship.
Roofing and Roof Repairs
Expand your living space with a high-quality home extension built to suit your needs. From single-storey additions to larger structural renovations, we design and build extensions that improve layout, add value and blend seamlessly with your existing home.
Home Extensions
Tell us your ideas and we’ll provide a clear, no-obligation quote. We build high-quality, fully insulated garden rooms across Ashford with a focus on craftsmanship and customer care.