At Glazed Extensions, we specialise in designing and delivering high-quality glazed extensions in Mitcham CR4 3 that transform how you live in your home.

Glazed extensions in offer a sophisticated alternative to traditional home extensions by blending architectural elegance with functional space.

As more homeowners seek to enhance their property with light-filled, multi-use areas, glazed extensions have become a popular solution for kitchens, lounges, dining areas, and home offices.

Since modern glazing technology allows for exceptional thermal performance, these extensions are now suitable for year-round use, even in colder UK climates.

Request a free quote from our glazed extension installation team in Mitcham today.

What Is a Glazed Extension?

A glazed extension is a permanent, structurally integrated addition to a residential property that uses glass as a key construction material.

Walls, roofs, or entire facades are made from double- or triple-glazed glass, supported by aluminium, timber, or steel frames.

Since the structure is usually attached to the main property, it expands internal living areas while allowing for abundant daylight and an open-plan feel.

Unlike conservatories, which may feel separate from the home, glazed extensions in Mitcham are designed to feel like a natural continuation of your interior.

A glazed extension refers to a structural addition to your home that features large areas of glass, in the walls and roof, to maximise natural light and create an open, seamless connection between indoor and outdoor living.

What Are The Benefits of a Glazed Extension in Mitcham?

A glazed extension offers a wide range of lifestyle and property-enhancing advantages.

The main benefits include:

• Increased natural light, reducing reliance on artificial lighting
• A seamless connection between interior rooms and the garden
• Enhanced property value and saleability
• Year-round usability with insulated glass and climate control
• Bespoke design options to match any architectural style
• Greater sense of space through visual openness

Since every extension is tailored to your needs, you can create a personalised area that serves as a kitchen, lounge, studio, or multi-use living space.

What Is the Cost of a Glazed Extension in Mitcham?

The cost of a glazed extension in Mitcham is from £30,000 to £90,000.

The cost depends on size, specification, and structural complexity.

Smaller or single-wall glazed additions with partial glass panels may start around £30,000 to £45,000, including foundations, structural support, and full installation.

Mid-range glazed extensions with full-height glass walls, bespoke finishes, and integrated lighting or heating usually range between £50,000 and £70,000.

High-end glazed extensions featuring glass roofs, minimal-frame systems, or frameless structural glass can exceed £80,000, particularly when integrated into listed or architecturally complex properties.

Every project includes site assessment, design consultation, planning support (if required), and full structural and thermal compliance.

Are Glazed Extensions Energy-Efficient?

Modern glazed extensions in Mitcham are highly energy-efficient thanks to the use of advanced glazing systems and thermally broken frame materials.

Double- and triple-glazed units provide insulation against heat loss, while low-emissivity coatings and gas-filled cavities improve overall performance.

Insulated aluminium or composite frames ensure thermal continuity, and optional features like underfloor heating or solar-control glazing maintain comfort throughout the seasons.

Since all installations are compliant with UK Building Regulations, you benefit from a space that is as practical as it is beautiful.

Do I Need Planning Permission for a Glazed Extension?

In many cases, glazed extensions in Mitcham fall under permitted development rights, which allow certain types of home extensions without the need for planning permission.

However, restrictions apply to size, height, proximity to boundaries, and alterations to listed buildings or conservation areas.

We carry out a full planning assessment before your project begins and, if necessary, manage the submission of drawings and applications to your local authority.

Since our team is experienced in both residential extensions and planning compliance, you can proceed with confidence at every stage.

How Long Does It Take to Build a Glazed Extension?

The typical build time for a glazed extension in Mitcham is between 10 and 16 weeks, depending on the scope and site conditions.

Design and planning may take 2 to 4 weeks, while fabrication of bespoke glazing systems can take an additional 3 to 6 weeks.

On-site construction, including groundwork, frame assembly, glass installation, and finishing, usually takes 4 to 6 weeks.

We provide a detailed timeline with your quote to ensure full transparency from the outset.

Can a Glazed Extension Match the Style of My Home?

Yes, all glazed extensions in Mitcham are fully bespoke and designed to complement the character and architecture of your property.

You can choose from a range of frame colours, glazing types, cladding materials, and roof styles—whether you’re aiming for a traditional orangery feel or a sleek, frameless modern design.

Since we work closely with architects and structural engineers, your extension will not only meet building regulations but also match your aesthetic goals.

Can I Include a Glass Roof in My Glazed Extension?

A glass roof can be included in your glazed extension in Mitcham to increase natural light and create a stunning architectural feature.

Options include full glass roofing, partial roof glazing, and skylights with solar-control glass to manage heat and glare.

This design works particularly well in kitchen or dining extensions, creating a bright, open atmosphere.

What Frame Materials Are Available for Glazed Extensions?

Glazed extensions can be constructed using aluminium, timber, composite, or steel frames, depending on the desired style and performance.

Aluminium frames are lightweight, low maintenance, and ideal for modern minimalist designs, while timber frames offer a more traditional, natural look.

All frames are thermally broken for energy efficiency and available in a wide range of colours and finishes.

How Is a Glazed Extension Different from a Conservatory?

While conservatories are usually lightweight structures with full-glass walls and roofs, a glazed extension in Mitcham CR4 3 is designed to be a permanent, insulated addition to your home.

Glazed extensions meet full building regulations, offer superior insulation, and often include solid walls, structural steelwork, and integrated heating or cooling systems.

They are typically more durable, more functional throughout the year, and more integrated into the property’s design.

Can I Use My Glazed Extension as a Kitchen?

Many clients choose to use glazed extensions in Mitcham as kitchen or open-plan dining spaces.

Modern structural glass allows for full-height windows and glass roofs, bringing in daylight while maintaining comfortable indoor temperatures.

We ensure all plumbing, ventilation, extraction, and electrical systems are properly integrated to meet kitchen requirements.

Will a Glazed Extension Add Value to My Home?

A well-designed glazed extension can add between 7% and 15% to the value of your home, depending on location, size, and quality of installation.

Buyers are often attracted to open, light-filled living spaces that connect to the garden and enhance overall floor area.

This type of extension is especially appealing in modern property markets where lifestyle features hold strong value.

Can I Install Underfloor Heating in a Glazed Extension?

Underfloor heating is a popular feature in glazed extensions in Mitcham, particularly in kitchen and living areas with large-format tiles or wood flooring.

It offers discreet, even heat distribution and helps maintain a consistent temperature without obstructing sightlines or furniture layout.

We offer both electric and wet underfloor heating systems based on the project scope and energy requirements.

How Do You Manage Ventilation in a Fully Glazed Extension?

Ventilation in a fully glazed extension in Mitcham can be managed using roof vents, sliding or bifold doors, automated skylights, or integrated mechanical ventilation systems.

Proper airflow is essential for comfort, condensation control, and temperature regulation.

Our team designs your extension with passive and active ventilation solutions that meet building code and lifestyle needs.

Get a Free Quote for Your Glazed Extension in Mitcham

From compact garden rooms to full-width architectural extensions, our team manages every detail, from design and compliance to installation and aftercare.

Every project is built with precision using the highest-grade materials and energy-efficient glass systems, ensuring long-term value and comfort.

Whether you’re looking to open up your living space, increase your property value, or enjoy panoramic garden views, a fully glazed extension offers both practical benefits and visual impact.

Contact us today for a free, no-obligation quote and discover how a bespoke Glazed Extensions in Greater London can elevate your home.

Find More Info

Make sure you contact us today for a number of great glazed extensions services.

Here are some towns we cover near Mitcham CR4 3

Merton, Morden, South Wimbledon, Carshalton, Thornton Heath

For more information on Glazed Extensions in Mitcham CR4 3, fill in the contact form below to receive a free quote today.