Professional Greenhouse Base Installation in Fareham. Built for Drainage. Guaranteed 10 Years.

Fareham sits on London Clay overlain by brickearth deposits — a heavy, moisture-retentive soil prone to significant seasonal shrink-swell movement. This makes precise levelling and sub-base preparation critical for any greenhouse base. Without proper preparation, the clay will shift your base out of level, causing glazing bars to bind, doors to jam, and glass panels to crack under stress.

Clay soils across Fareham drain poorly, and surface water can pool rapidly after heavy rain. We incorporate a minimum 75mm fall away from the greenhouse base and lay a generous type 1 sub-base that acts as a drainage reservoir beneath the surface. Properties in low-lying areas of Stubbington and Hill Head near the Solent coast may benefit from additional French drain channels to protect the greenhouse interior from rising damp.

Coastal and elevated positions — particularly around Hill Head, Stubbington, and the Portsdown Hill ridge — can experience strong south-westerly winds. A properly anchored greenhouse base is essential in these locations. We recommend sheltered, south-facing positions where possible, using boundary walls and hedging as natural windbreaks.

Fareham's Solent-coast position provides some frost protection — the maritime influence means hard frosts are less frequent than inland Hampshire. However, cold air can pool in the clay-floored valleys around Titchfield and Sarisbury on still winter nights. We ensure bases are set at correct heights to promote airflow beneath the greenhouse, reducing frost damage to tender plants.