House Extensions in Maidstone
Professional house extensions in Maidstone, including rear extensions, side extensions, wraparounds and double-storey builds. High-quality workmanship, full project management and free, itemised quotes.
House Extensions in Maidstone
Create More Space, Add Value & Transform the Way You Live
A well-designed house extension is one of the most effective ways to expand your living space and increase your home’s value — without the stress and cost of moving.
At Maidstone Builder, we specialise in building modern, spacious, energy-efficient extensions that blend seamlessly with your home’s existing structure and character.
From open-plan kitchen extensions to double-storey expansions, we manage every stage of the project with professionalism, clear communication and expert craftsmanship.
Whether you’re looking for a bigger kitchen, a family room, a home office or additional bedrooms, we tailor our service to suit your space, your lifestyle and your long-term plans.
Types of Extensions We Build
Create More Space With a High-Quality Home Extension
Single-Storey Extensions
A fast, efficient way to add square footage without major structural redesign. Ideal for growing families or modernising older homes.
Double-Storey Extensions
Maximise space with additional upstairs bedrooms, bathrooms or master suites while improving downstairs living areas at the same time.
Side & Wraparound Extensions
A combination of side and rear extensions — offering the biggest transformation for homeowners wanting to fully redesign the ground floor and increase upstairs space.
Open-plan living conversions
Combine your extension with internal layout changes to create a bright, open-plan kitchen-diner or living space. We handle all structural work, including steel installation.
What’s Included in Our Extension Service
Your project will be fully managed by our experienced team, covering:
Architectural guidance (if required)
Planning permission support
Structural engineering & RSJ installation
Foundations & brick/block work
Roofing & insulation
Plumbing & electrics
Window and door installation
Plastering, flooring & finishing
Kitchens, bathrooms & layout design
Internal reconfiguration
Everything is handled in-house for a smooth, coordinated build.
More of our services
Garden Rooms & Outbuildings
Create extra space with a purpose-built garden room, office, workshop or insulated outbuilding. Designed around your home and lifestyle, our garden structures are durable, practical and finished to a high standard — perfect for work, hobbies or additional living space
Roofing
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.
Garage Conversions
Transform an underused garage into a warm, functional living space. From home offices and bedrooms to playrooms and studios, we manage the full conversion process — including insulation, electrics, plumbing and all finishing touches.