How to Maintain and Clean Your Aluminium Greenhouse

02.04.2025.

When you invest in a premium aluminium greenhouse from Bloomcabin, you're not just buying a structure; you're securing a long-term growing environment built to last. Our high-quality greenhouses are designed for durability, style, and year-round performance. However, like any outdoor structure, regular maintenance and cleaning are key to keeping it in top shape. In this comprehensive guide, we’ll walk you through everything you need to know about maintaining your aluminium greenhouse, ensuring it stays beautiful and functional for many years.

Why Maintenance Matters

Aluminium greenhouses are known for their low-maintenance properties compared to wooden or steel frames, but they aren’t completely maintenance-free. Dust, dirt, algae, and weather exposure can all take a toll over time. With just a few seasonal care steps, your greenhouse will continue to provide the perfect growing conditions while retaining its aesthetic appeal.

Routine cleaning also helps you detect early signs of wear and tear, so you can make small fixes before they become major repairs. A well-maintained greenhouse is also more energy-efficient, better ventilated, and more productive in terms of plant growth.

Additionally, maintaining your greenhouse helps protect your plants from pests and diseases. When you keep the structure clean, you minimise the risk of mould, mildew, and infestations that could ruin your crops. You’ll also create a more pleasant environment for yourself to work in, whether it’s a quick morning check or a weekend gardening session.

Cleaning Your Aluminium Greenhouse: Step-by-Step Guide

1. Schedule Seasonal Cleanings
Aim to deep-clean your greenhouse at least twice a year: once in early spring before the planting season and again in autumn after harvesting. For high-traffic greenhouses or areas with heavy rainfall, you might want to clean quarterly.

2. Gather Your Cleaning Supplies
Before you begin, gather the following:

Soft sponge or cloth
Bucket of warm water with mild washing-up liquid
Garden hose with spray nozzle
Soft-bristle brush
White vinegar (for stubborn spots)
Lint-free cloths or squeegee
Protective gloves
Step ladder for high areas
Optional: biodegradable greenhouse cleaning products

3. Start with the Frame
Use a sponge and soapy water to wipe down the aluminium frame. Rinse with the garden hose and dry with a clean cloth. Avoid abrasive cleaners or metal brushes that could scratch the finish and compromise the protective coating.

4. Clean the Glass or Polycarbonate Panels
Wipe the panels with a sponge and soap solution. For glass greenhouses, a vinegar-water solution works well on mineral deposits. Use a squeegee for a streak-free finish. For polycarbonate, only use non-abrasive cleaners to avoid damaging the surface. Always clean in the shade to prevent streaking caused by fast drying in sunlight.

5. Remove Debris from Gutters and Roof
Clear out leaves, moss, and dirt from gutters to prevent water buildup. Check roof intersections and corners where grime tends to collect. A clogged gutter can lead to leaks and even water damage to the foundation over time. Consider installing mesh covers to prevent future clogs.

6. Clean Inside Surfaces
Disinfect shelves, seed trays, and flooring using a greenhouse-safe disinfectant. Keep ventilation areas free from cobwebs and dust. Sweep or vacuum out loose soil, leaves, and plant material. For concrete or tiled floors, mop with a mild cleaning solution to eliminate mould spores or bacteria buildup.

Routine Maintenance for Longevity

1. Inspect Seals and Joints
Look for cracked or loose seals around the panels and doors. These can cause leaks and reduce insulation. Replace any worn or missing rubber gaskets to maintain an airtight environment.

2. Lubricate Moving Parts
Use a silicone-based spray to lubricate door hinges, sliding rails, and vent openers. Avoid using oil-based products, which can attract dirt and grime over time.

3. Check for Corrosion or Damage
Although aluminium is rust-resistant, inspect for signs of corrosion, discolouration, or scratches in the powder coating. Address minor damage quickly to prevent further deterioration.

4. Monitor the Foundation
Walk around the base and check for uneven settling, cracks, or signs of movement. A stable, level foundation is essential for long-term structural integrity.

5. Maintain Proper Ventilation
Ventilation is vital to prevent overheating and control humidity. Make sure vents are unobstructed, and check that auto-openers respond to temperature changes.

6. Replace Worn Components
Door tracks, rubber seals, and plastic fasteners may need replacing after a few seasons. Check your greenhouse manual or contact Bloomcabin for compatible replacement parts.

Winter Preparation Tips

Remove snow from the roof regularly to avoid structural stress.
Apply extra insulation such as bubble wrap to walls and glazing panels.
Keep vents closed tightly to retain warmth inside.
Raise containers off the ground to prevent root freezing.
Consider adding a small greenhouse heater for sensitive plants.
Cover unused sections of the greenhouse to conserve heat and reduce condensation.

Winter prep ensures your greenhouse can withstand harsh conditions and be ready to thrive again in spring.

Prolong the Life of Your Greenhouse with Bloomcabin Accessories

Bloomcabin offers a wide range of accessories to elevate your gardening experience. Each item is crafted to seamlessly integrate with your aluminium greenhouse structure:

Aluminium base frames for added stability
Gutter kits for efficient rainwater collection
Automatic vent openers to regulate interior climate
Shade cloths for UV protection and temperature control
Custom shelving units for organised planting space

Investing in these tools not only enhances functionality but also extends the overall life and aesthetics of your greenhouse.

Why Choose Bloomcabin for Your Aluminium Greenhouse?

At Bloomcabin, we specialise in creating premium aluminium greenhouses that blend beauty and innovation. Our sleek matte finishes and modular designs appeal to modern gardeners seeking durability without compromising on style.

We offer:

Durable powder-coated aluminium frames
4mm hardened safety glass or insulated twin-wall polycarbonate
Elegant Scandinavian-inspired design
Free and fast UK-wide shipping
Simple and secure online ordering process

With satisfied customers across the United Kingdom, Bloomcabin continues to set the standard in greenhouse excellence.

Ready to Elevate Your Gardening Game?

Maintaining your greenhouse doesn’t have to be a chore. With a little care, your Bloomcabin aluminium greenhouse will provide years of beauty, productivity, and gardening joy.

Don’t have your greenhouse yet? Now is the perfect time to explore your options. Visit Bloomcabin.com to browse our curated collection of premium aluminium greenhouses. Act now and take advantage of limited-time offers and seasonal discounts.

Let Bloomcabin help you turn your garden dreams into reality—with a greenhouse that’s easy to maintain and stunning to behold.