Preparing your greenhouse for the change of seasons is always a big job. As we leave summer behind, there are a few simple maintenance steps you can take to ensure your greenhouse, lighting, and HVAC systems are ready to meet the demanding winter months ahead. A solid maintenance plan will help you proactively address problems, and may even help you avoid equipment issues or failures down the road. That’s a win win!

You may be wondering what steps you need to take to make sure your commercial greenhouse is ready for winter. We’re here to help! Read on for Gold Leaf Technologies’ comprehensive checklist to prepare you, your team, and your facility for the cold months ahead.

A thorough facility cleaning will help you see any potential issues and prepare for next season’s crops. Some areas to consider are:

  • Clean greenhouse floors, benches, and racks
  • Discard of off-season plants and debris

Your greenhouse insulation helps keep your facility at optimal growing temperatures in the winter months. Make sure you examine insulation for:

  • Gaps at entries and corners, and
  • Ensure doors and windows are sealed to avoid pests

Make sure you perform an HVAC inspection and test. Properly operating ventilation systems increase airflow, reduce condensation, and can improve cooling and heating. You’ll want to check:

  • Ventilation systems and fans
  • Thermostat calibration and test
  • Pilot lights
  • Check smoke and carbon monoxide detectors and systems
  • Check and clean or replace filters

This is the time of year when growers turn their lights on. As you do this, it’s important to inspect and check the lights in your facility for wear and tear and any failures. If you have HPS bulbs, they may need to be changed or replaced. LED lighting should be checked for any issues, and make sure you:

  • Take a PPFD reading with your PAR sensor to test supplemental lighting levels prior to sunrise or after sunset
  • Review your lighting schedules for accuracy, and to ensure DLI targets are being met
  • Test bulbs and LED lights to ensure they’re are working properly
  • Wipe down the lenses for LEDs can help to make sure you’re maximizing the amount of light that the plants are getting
  • Wipe down reflectors for HPS to help maintain lighting levels
  • Inspect sensors and switches

Ballast check and cleaning:

  • Check structures and clean ballasts and joints

Don’t forget your irrigation systems. You’ll want to make sure there are no costly leaks or punctures in the system. Make sure to check:

  • Misting equipment, filters, and lines
  • Perform any system flushes as needed

Lastly, you’ll want to inspect the interior and exterior walls, as well as the roof. Make sure there are no gaps or holes where moisture or heat may escape. You’ll also want to:

  • Check for cracks and water leaks
  • Make sure the roof hasn’t suffered any damage, and ensure there is no damage

It’s a big job to prepare your greenhouse for those cold winter months, but we’re here for you. If you run into problems with any of your LED lights, ballasts, controls, or sensors, give us a call for help. We can let you know what options are available for replacement or repair, as well as what technology will help you get the most out of your winter crops. Reach out to us at or +1 833 GLD-LEAF.