Not every worn-out greenhouse requires a new structure, but not every greenhouse is worth saving. Here’s how to evaluate your options and choose the best path forward.

Knowing whether to repair, retrofit, or replace a greenhouse isn’t always a straightforward decision.

Repairs and retrofitting can offer quick wins, but if your structure or setup is unsafe or holds you back, replacement might be the better route. All three options come with their benefits and challenges.

Before deciding whether to repair, retrofit, or replace a greenhouse, start by looking at the scope and impact of the problems with your existing greenhouse.

One of the first questions to answer is whether the problem is isolated or widespread. The answer often points you toward the right solution.

When Greenhouse Repairs Make Sense

Fix Localized Issues

Repairs are what you do when things aren’t complex enough to justify retrofitting or replacement.

Make repairs when:

• Issue is localized and has minimal impact
• Issue is confined to a small area
• No signs of the problem spreading
• Repairs are infrequent, not recurring
• Problem is a nuisance, not a limitation, and does not impact overall performance
• Cost is low relative to retrofitting or replacement

When a Greenhouse Retrofit (or Renovation) Is the Better Investment

Improve or Extend What Exists

The goal of a retrofit is to improve performance, increase efficiency, bring the structure up to code, add new capabilities, or extend service life.

Consider a retrofit when:

• Structure and framing are sound
• You’re addressing a performance or system-level issue (e.g., light transmission loss from poor glazing)
• Parts can be upgraded individually or without a full shutdown
• Structures are up to code and can support new equipment loads
• The use of space can change with needs
• Layout remains functional
• Environmental control can be improved
• Energy efficiency upgrades are feasible
• New systems can be added without major redesign
• It’s more cost-effective than rebuilding

When It’s Time to Replace Your Greenhouse

Out With the Old, In With the New

A complete teardown and rebuild can make sense when a structure is no longer safe, functional, or cost-effective to maintain, or when a new greenhouse will better meet current and future needs.

In this case, the problems with the existing greenhouse are usually widespread, structural, and recurring.

Any of these factors could indicate it’s time to rebuild:

• Structural failure or deterioration
• Insufficient height
• No way to install curtains or overhead equipment
• Structure limits upgrades or can’t support them
• Layout no longer works
• Limited or no design flexibility
• Ongoing control or efficiency issues
• Limited to no expansion potential
• Changes in crop requirements
• Retrofit costs approach rebuild costs
• Maintenance is frequent, costly, and time-consuming
• Not up to code, safety concerns, or environmental hazards

Repair, Retrofit, or Replace a Greenhouse? Comparison Table

When to Take the Middle Ground

Do It Over Time or A Little at a Time

With repairs, retrofits, and replacements, it’s worth noting that projects do not have to be done all at once.

You can often minimize repairs with a good maintenance program that includes preventive upkeep tasks regularly performed throughout the year to prevent more costly and extensive repairs down the road.

If you don’t have time for regular upkeep of your greenhouse, consider hiring someone else to do it for you by entering into a greenhouse maintenance contract.

If possible, consider making renovations in response to a planned repair or during maintenance, thereby upgrading your facility as part of a scheduled and budgeted stop.

Phasing in improvement projects over time can give you the flexibility to prioritize the most critical upgrades first, stay operational during construction, and spread capital expenditures out over time.

You can also phase a new build by starting with a core structure equipped with the systems you need to meet your current needs, along with the electrical, piping, and other infrastructure needed for future expansion or equipment additions.

If your budget allows, you might consider retrofitting and building new.

You could build a new greenhouse to give you more space and accommodate future needs and save on retrofit costs to renovate your present operations while builders and materials are on-site.

Repair, Retrofit, or Replace a Greenhouse?

Only You Can Make the Right Decision

There’s no single right answer when it comes to the question of whether to repair, retrofit, or rebuild a greenhouse. What the right call is for you comes down to your needs, budget, and vision for the future.

But you don’t have to make the decision alone. We have experts who can look over your existing greenhouse to assess its condition and offer recommendations to help you decide the best path forward. Contact us to learn more.

Janeen Wright

Janeen Wright is Senior Communications Specialist for Prospiant Greenhouses. She is a horticulturist and former head editor of Greenhouse Grower magazine.

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