Blog, Conservatories, Extension

When an older conservatory becomes too hot in summer, too cold in winter or no longer suits the way a household uses its home, one of the first questions is whether to improve the existing structure or replace it with a completely new extension.

Both options can create valuable additional living space, but they involve very different levels of work, disruption and investment.

Replacing the conservatory roof can often be the more straightforward and economical option where the existing foundations, frames and walls remain in good condition. A full extension may be more appropriate where the homeowner wants to enlarge the footprint, change the layout substantially or replace a conservatory that is no longer structurally suitable.

There is no single answer that applies to every property. Understanding what each project involves can help homeowners make a more informed decision.

Why Do Homeowners Consider Replacing Their Conservatory?

Many conservatories were originally installed to provide an affordable way to add light and space to the home. However, older designs can be difficult to use throughout the year.

Common concerns include:

• The room becoming excessively hot during sunny weather
• Rapid heat loss in winter
• Noise from rain on a polycarbonate roof
• Glare through the roof
• Draughts from ageing windows and doors
• Condensation
• A dated appearance
• A room that feels disconnected from the house
• Limited space for ceiling lights or other fittings

These issues can make homeowners wonder whether the conservatory should be demolished and replaced by a traditional extension.

In some cases, that may be the right solution. In others, the existing structure can be upgraded effectively with a new insulated roof, improved glazing and a more attractive internal finish.

What Does a Conservatory Roof Replacement Involve?

A conservatory roof replacement usually involves removing the existing glass or polycarbonate roof and installing a new system on the existing conservatory structure.

Depending on the chosen design, the replacement could be a tiled, solid, glazed or hybrid roof.

The project may also include:

• Inspecting the existing frames and supporting structure
• Replacing damaged or inefficient windows
• Upgrading the conservatory doors
• Installing insulation
• Boarding and plastering the internal ceiling
• Adding spotlights or other lighting
• Improving ventilation
• Renewing guttering
• Completing internal decorative finishes

The main advantage is that much of the existing conservatory may be retained. Where the structure is sound, this can reduce the amount of demolition, building work and disruption required.

What Does Building an Extension Involve?

A traditional extension is a more substantial construction project.

The existing conservatory may need to be demolished before work begins. New foundations, walls, insulation, roofing, glazing and internal finishes then have to be constructed.

A typical extension project may involve:

• Design work
• Planning considerations
• Building regulations
• Groundwork and foundations
• Brick or block walls
• Structural steelwork
• A new roof
• Insulation
• Windows and doors
• Electrical work
• Heating
• Plumbing where required
• Plastering
• Flooring
• Decorating
• Changes to the adjoining room

An extension can provide greater freedom over the size, shape and layout of the finished space. However, this flexibility usually comes with more work, greater disruption and a higher overall budget.

Is Replacing a Conservatory Roof Usually Cheaper?

Where the existing conservatory is structurally suitable, replacing the roof will generally involve less construction work than demolishing it and building a new extension.

The foundations, brickwork, frames and existing footprint may all be retained. This can reduce labour, materials, waste removal and the number of different trades required.

However, the final cost will depend on several factors, including:

• The size and shape of the conservatory
• The chosen roof system
• The condition of the existing frames
• Whether the windows and doors also need replacing
• The amount of internal finishing required
• Whether structural alterations are needed
• Access to the property
• Electrical and heating requirements
• Any planning or building-control requirements

A simple roof replacement on a sound conservatory will be very different from a project involving new walling, larger door openings and extensive internal alterations.

The only reliable way to compare the options is to have the existing conservatory inspected and obtain a detailed quotation.

When Is a Replacement Roof the Better Option?

A replacement roof may be the most practical choice when the homeowner is generally happy with the size and position of the existing conservatory.

It may also be suitable when:

• The existing foundations and frames are in good condition
• The main problem is the temperature
• The current roof is noisy or inefficient
• The homeowner wants a more substantial internal ceiling
• The existing footprint provides enough space
• Natural light and garden views remain important
• The aim is to improve the room without rebuilding it entirely
• Minimising disruption is a priority
• The conservatory only requires selected upgrades

In these circumstances, replacing the roof can transform the feel of the room without the scale of a full extension project.

When Might an Extension Be the Better Choice?

An extension may be more appropriate when the existing conservatory no longer provides the size, layout or structure the homeowner needs.

Reasons to consider an extension include:

• The current conservatory is too small
• The footprint needs to be enlarged
• The layout of the ground floor needs to change
• The conservatory foundations are unsuitable
• The frames or walls are in poor condition
• Large structural openings are required
• The homeowner wants fully insulated masonry walls
• Plumbing is needed for a kitchen or utility room
• The project forms part of a wider home renovation
• The existing conservatory needs to be demolished regardless

An extension offers greater design freedom, but it is important to consider whether the additional space and flexibility justify the greater level of work.

Comparing the Level of Disruption

Cost is not the only consideration. The effect of the work on everyday home life may also influence the decision.

A conservatory roof replacement will still involve noise, removal of the existing roof and a period when the room cannot be used. However, it is usually more contained than constructing a complete extension.

A full extension may involve prolonged groundwork, bricklaying, roofing and internal building work. Access may be required through the house or garden, and several different trades may be involved.

Weather can also affect the schedule, particularly during the early construction stages.

Homeowners who want to improve the room with less disruption may find that upgrading the existing conservatory is more suitable.

Choosing a Tiled Replacement Roof

A tiled replacement roof can make a conservatory look and feel much more like a permanent room.

The Ultraroof380 is a lightweight tiled roof system designed for conservatories and extensions. It combines an insulated construction with an external tiled finish.

Internally, the roof can be boarded and plastered to create a conventional ceiling. Lighting can be incorporated into the design, helping the conservatory feel more connected to the main house.

Glazed panels can also be included where extra daylight is needed.

A tiled roof may suit homeowners who want:

• Improved thermal performance
• Reduced glare
• Less noise from rain
• A plastered internal ceiling
• Integrated lighting
• A more substantial external appearance
• Selected glazed areas rather than a fully glazed roof

This type of system can provide many of the visual benefits associated with an extension while retaining the existing conservatory structure.

Choosing a Hybrid Conservatory Roof

Some homeowners want the insulation of a solid roof but are concerned about losing too much natural light.

The LivinRoof combines insulated solid sections with areas of glazing. The glazed panels can be positioned to suit the layout of the conservatory and the adjoining room.

This allows solid sections to provide shade above seating, televisions or work areas, while glazed panels direct daylight into the parts of the room that benefit from it most.

A hybrid roof can provide:

• A balance between insulation and daylight
• Greater control over glare
• A more substantial internal appearance
• Improved privacy
• Flexible positioning of glass panels
• A design tailored to the room

For many homeowners, this provides a useful middle ground between retaining a fully glazed conservatory and building a traditional extension.

Retaining a Bright Conservatory Feel

A solid or tiled roof does not suit every homeowner. Some people still want the bright, airy character of a glazed conservatory while improving its internal appearance.

The LivinRoom system creates a plastered perimeter ceiling around a large glazed roof area.

This can provide space for integrated lighting and help the room feel more finished, while retaining generous natural light from above.

It may be suitable where the existing glazed character of the conservatory is important but the homeowner wants the interior to feel more homely and connected to the house.

Will the Existing Windows and Doors Need Replacing?

The condition of the conservatory windows and doors can have a significant effect on whether a roof-only replacement is sufficient.

Older frames may be draughty, damaged or less thermally efficient than modern products. If these are left in place, they may limit the improvement achieved by the new roof.

Modern uPVC windows can improve insulation, security and ease of maintenance.

The doors may also be replaced to improve access and create a stronger connection with the garden. Suitable options could include:

• French doors
• Patio doors
• Bi-folding doors

If a large proportion of the conservatory walling needs replacement, the overall project should be assessed carefully. It may still be worthwhile, but the cost difference between upgrading and rebuilding may become smaller.

Can the Conservatory Feel Like a Proper Extension?

A replacement roof can make a conservatory feel considerably more like a traditional room, particularly when it includes a plastered ceiling, efficient glazing and coordinated internal finishes.

The final result will also depend on details such as:

• Flooring
• Wall colours
• Lighting
• Heating
• Skirting boards
• Electrical sockets
• Furniture placement
• Internal doors or openings
• The transition from the adjoining room

Using similar finishes in the conservatory and the main house can make the spaces feel more connected.

However, a conservatory with extensive glazed walling will still have a different character from a fully masonry-built extension. Homeowners should decide whether this lighter, garden-focused appearance is something they want to preserve.

Think About How the Room Will Be Used

The intended use of the space should guide the decision.

A replacement roof may be ideal where the conservatory will become:

• A living room
• A dining room
• A home office
• A playroom
• A television room
• A reading room
• A hobby space
• A room for entertaining

A full extension may be more suitable where the new area will contain:

• A large kitchen
• A utility room
• Extensive fitted cabinetry
• Major plumbing installations
• Structural changes to the ground floor
• A significantly enlarged living area

The more complex the desired use, the more likely it is that an extension may offer advantages.

Planning Permission and Building Regulations

The approval requirements for a replacement roof and an extension can be different.

A replacement conservatory roof may not always require a full planning application, but the project may still need to comply with building regulations or other requirements.

A new extension is more likely to involve formal planning and building-control considerations, although the exact requirements depend on the property and the proposed design.

Listed buildings, homes in conservation areas and properties with previous planning restrictions may require additional approval.

Each project should be assessed individually rather than assuming the same rules apply to every property.

Compare Complete Quotations, Not Just the Roof Price

When comparing a roof replacement with a new extension, it is important to look at the full scope of each quotation.

A lower initial price may not include all the work needed to create a finished living space.

Homeowners should check whether the quotation includes:

• Removal of the existing roof
• Disposal of waste
• The new roof system
• Structural checks
• Internal insulation
• Boarding and plastering
• Electrical work
• Lighting
• Guttering
• Replacement frames
• New doors
• Decorative finishes
• Building-control costs where applicable
• VAT
• Guarantees

A transparent quotation should make it clear what is included and when payments are due.

This makes it easier to compare different solutions fairly.

Consider the Long-Term Value of the Room

The cheapest option is not necessarily the one that provides the best value.

A poorly planned upgrade may fail to solve the room’s main problems. Equally, a large extension may be unnecessary if the existing conservatory already provides enough space.

The most valuable solution is usually the one that creates a room the household will use regularly.

Questions to consider include:

• Is the existing room large enough?
• Does the current position work well?
• Are the foundations and frames suitable?
• How important is overhead natural light?
• Will the room be used every day?
• Is a major change to the ground-floor layout needed?
• How much disruption is acceptable?
• Does the finished room need plumbing?
• Is the homeowner happy to retain glazed walls?

The answers can help determine whether upgrading or rebuilding is more appropriate.

Start with a Professional Survey

The condition of the existing conservatory cannot be judged accurately from appearance alone.

The supporting structure, frames, foundations, brickwork and roof connection all need to be considered before a replacement system is recommended.

R&M Windows and Conservatories carries out a full survey once an order has been placed. This allows precise measurements to be taken and helps ensure the proposed products are suitable for the property.

A professional assessment can also identify whether the windows, doors or conservatory walling should be replaced as part of the project.

Replacement Conservatory Roofs in Bracknell

R&M Windows and Conservatories has been installing windows, doors and conservatories in Bracknell and the surrounding areas since 1987.

We can discuss how you currently use your conservatory, the problems you want to resolve and the type of room you would like to create. We will then explain the suitable replacement roof options and provide a detailed quotation.

Our installations are completed by experienced, fully trained teams, and our window, door and conservatory installations are covered by a full ten-year guarantee.

To find out whether replacing your conservatory roof could provide a practical alternative to building an extension, contact R&M Windows and Conservatories for a free quotation.