How to Choose a Conservatory Installer in Sussex: Base, Glazing, Heating and the House Connection

If you are choosing a conservatory installer in Sussex, compare the complete room from the ground up — base, drainage, frame, roof, ventilation, heating and the connection to the house.

The visible frame is only one part of the job. Problems often appear later because the base, thresholds, drainage, overheating or the relationship with the existing house were treated as somebody else's responsibility.

Decide what the room is meant to be

A conservatory used occasionally in mild weather has a different brief from a room expected to function as daily living space.

Before quoting, decide:

• how often it will be used;
• whether you expect winter use;
• how much direct sun it gets;
• whether privacy matters;
• furniture layout;
• access to the garden;
• whether it replaces an existing conservatory.

This affects glazing, roof, ventilation, shading and heating decisions.

The base is a construction job

Ask who is responsible for:

• excavation;
• foundations;
• oversite/floor;
• insulation;
• damp protection;
• external ground levels;
• steps;
• drainage;
• spoil removal.

Do not assume every conservatory company employs or directly manages the groundworks.

If another contractor is doing the base, require dimensions, levels and specification to be agreed before concrete is poured.

Drainage can control the layout

A new conservatory may sit close to:

• soil pipes;
• gullies;
• inspection chambers;
• rainwater drains;
• existing underground services.

Ask what is under the proposed footprint before finalising it.

If a manhole or drainage run needs alteration, establish who designs and carries out that work.

The neatest frame layout may not be the simplest construction layout.

Building Regulations exemption is conditional

Current GOV.UK guidance explains that conservatories can benefit from Building Regulations exemptions only where the relevant conditions are satisfied.

Do not reduce that to “conservatories do not need Building Regulations”.

Discuss:

• floor area;
• ground-floor position;
• separation from the existing dwelling;
• glazing and electrical work;
• any structural opening;
• heating arrangement.

If the project falls outside an exemption, use the appropriate approval route.

Keep the house/conservatory boundary in the design conversation

The doors or wall between the conservatory and the house matter.

Removing separation can change the energy and Building Regulations position significantly.

If your actual aim is an open-plan extension with a highly glazed roof, say that at the beginning. Do not order an exempt-style conservatory and assume it can later be treated as an extension without consequences.

Where a new structural opening is required, a builder or structural input may also be needed.

Roof choice changes comfort

Common roof approaches have different effects on:

• daylight;
• summer heat;
• winter comfort;
• rain noise;
• maintenance;
• weight.

Ask the installer to explain why the proposed roof suits the room's orientation and intended use.

Avoid choosing entirely from showroom appearance.

A south- or west-facing glazed room may need more thought about solar gain and shading than a cooler orientation.

Glazing specification should be explicit

Ask for:

• glass type;
• safety glazing where relevant;
• roof glazing specification;
• solar-control options where offered;
• obscure glass where needed;
• opening vents;
• door specification.

Do not accept “high-performance glazing” as the only description.

You should know what is being supplied.

Heating is not a substitute for envelope design

If you want heating, discuss it during design.

A room that overheats in summer and loses heat rapidly in winter is not solved simply by fitting a larger radiator.

Consider:

• roof;
• glazing;
• shading;
• air leakage;
• floor insulation;
• ventilation.

If a conservatory is intended to remain thermally separated from the house, heating decisions should respect that design.

Ventilation and summer comfort

Ask how the room will release heat.

Possible features include:

• opening roof vents;
• opening windows;
• large doors;
• shading;
• blinds;
• solar-control glazing.

Motorised vents can be useful, but ask how they operate if power or sensors fail.

For rental properties, simple controls often outperform features that nobody understands after a tenancy change.

Thresholds and doors need early decisions

Check:

• internal floor level;
• external patio level;
• drainage outside doors;
• step height;
• door opening;
• furniture route;
• accessible threshold requirements where relevant.

A few centimetres at the base can affect both weather protection and usability.

What does “finished” mean?

One quote may finish at a watertight shell.

Another may include:

• plastering;
• electrics;
• lighting;
• heating;
• flooring;
• skirting;
• decoration;
• external paving;
• making good to the house.

Compare the handover condition, not merely the headline conservatory price.

Landlords and managed properties

Keep:

• final drawings;
• approvals/exemption basis;
• glazing details;
• roof details;
• electrical paperwork;
• warranties;
• keys;
• maintenance information.

Future repairers need to know what system was installed.

Using TradeKind

You can browse conservatory installers across Sussex or post the project.

A useful brief might say:

“Replace old 3m x 4m rear conservatory in Littlehampton. Existing concrete base may be retained only if suitable. Want year-round dining use, solid or hybrid roof options, garden drainage close to footprint and full making good priced.”

That makes the real scope visible.

Before signing

Confirm:

• use of the room;
• base/foundations;
• drainage;
• separation from the house;
• approvals;
• frame/glazing;
• roof;
• ventilation;
• heating;
• thresholds;
• finishes;
• warranties.

A conservatory is successful when the whole room works, not when the frame simply fits.