What does a greenhouse really cost?

Ask what the headline price leaves out

Two greenhouse prices are comparable only when you know what they include. One package may have a base and installation; another may be the frame and glazing delivered to the kerb. Keep the exact size, finish and glazing beside every quote.

For example, Juliana’s Premium listing describes its steel base as optional. A quote for the greenhouse alone therefore needs another check before you treat it as an installed structure.

Use the worksheet below for your actual supplier figures, in one currency. A blank field means the amount is still unknown. Enter zero only when an item is included, already owned or genuinely not needed. Prices on linked stores can change; we do not maintain a live price feed.

Collect these parts of the first-season quote

• Structure and glazing: chosen model, size, finish, doors and opening vents. Record tax treatment so that all quotes use the same basis.
• Ground work, foundation and anchoring: clearing or levelling the site, materials, the manufacturer’s base if used and fixings appropriate to the installation. A base frame is not the whole ground-work bill.
• Delivery and handling: the exact postcode, unloading point, access restrictions and the route from that point to the prepared site.
• Assembly: who erects and glazes the structure, what site preparation they require and what work is excluded. Confirm whether any wall work for a lean-to is included.
• Watering: the connection or reservoir, tubing, emitters, required filter and pressure equipment, and a controller or pump when needed.
• Ventilation and shading: opening mechanisms and compatible shading that the chosen site needs. Price the actual number of vents or panes being equipped.
• Growing equipment: suitable containers or bed preparation, supports and any useful bench or shelf. Deduct only equipment that is genuinely included or already available.
• Other first-season costs: any agreed professional work, water, electricity if used, and items not counted elsewhere. Enter a supported allowance or obtain a quote rather than hiding them in zero.

Where an upgrade earns its place

Pay first for the structure and installation that fit your site, safe access and a workable growing routine. Wider doors may solve a daily access problem. Professional assembly may solve a task you cannot undertake. Neither benefit is captured by floor area alone.

An automatic watering installation may be useful for repeated absences, but price its complete supply path. Our watering-system comparison identifies which examples need a tap, a battery, a reservoir or separate pipes.

A shelf is useful only if it leaves the growing and walking space you need. Buy decorative or extra storage pieces after marking them on the layout. Existing suitable pots and tools can remain in the project.

The accessories below illustrate compatibility questions. They are not a bundle and you do not need to buy them together. Check the pane or vent they will attach to before comparing prices.

Compare the complete installation

Keep the written quotes and note when each expires. Compare the finished scope: the same usable footprint, comparable glazing, the same access and the same site work. A lower structure price can still lead to a higher completed bill.

The first-season total is a cash budget, not a prediction of the value of your cucumber harvest. Replacement parts, later maintenance and future energy use remain separate decisions. Ask about spare glazing and hardware availability before placing the order.

If the complete quote no longer fits, return to choosing the greenhouse and adjust the size or timing of optional additions. Keep the necessary foundations, anchoring and ventilation in the revised plan.