Bird Control Netting for Commercial Buildings: A Facility Manager’s Guide
Bird control netting is a physical barrier that keeps birds out of loading docks, canopies, rooftop equipment areas, atriums and structural gaps. Done right, it is one of the few bird control methods that works by itself. Done wrong, it traps birds, sags, tears and becomes a liability. This guide covers how to choose netting, what a sound installation looks like, which laws apply, and when netting is the wrong tool.
It is written for property managers, facility directors and retail operations teams who have to decide, scope and oversee the work, not for homeowners protecting a garden.
TL;DR
- Netting works when it fully closes off a space, is matched to the bird species, and is pulled drum-tight. Gaps and slack are where birds get in and get hurt.
- Mesh size is not a detail. Too large and birds enter, nest or roost behind the barrier.
- Check the calendar before you install: active nests are protected under the Migratory Bird Treaty Act in the US, so timing and nest checks come first.
- Budget for inspections. Netting is not a one-time purchase, it is a system you maintain.
- Netting often needs company: removing ledges, cleaning droppings and changing nearby landscaping keep birds from simply moving next door.
Table of Contents
- Where bird netting makes sense on a commercial property
- Choosing the right netting
- What a good installation looks like
- The legal side: nests, timing and entanglement
- Netting versus other bird deterrents for buildings
- What bird netting costs and what drives the price
- Our perspective: treat birds as a facility problem, not a product purchase
- Getting help with bird pressure on your property
- A short checklist before you sign off on a netting job
- FAQ
- Sources
Where bird netting makes sense on a commercial property
Netting suits enclosed or semi-enclosed areas where you want birds out entirely and a visible barrier is acceptable. Typical spots on commercial sites:
- Loading dock overhangs and warehouse rafters
- Store canopies, gas station canopies and drive-through structures
- Steel truss areas under parking decks and walkways
- Rooftop mechanical areas and gaps behind signage
- Courtyards, atriums and outdoor dining areas
- Recesses and alcoves on building facades
The common thread is a defined volume of space that can be sealed. If the area is a long, open ledge where birds simply perch, other deterrents usually fit better (more on that below).
The reasons to act are practical. Droppings are slippery underfoot, corrode surfaces, clog gutters and drains, and create a sanitation problem near food, pharmacy and healthcare entrances. Nesting material can block drainage and vents. For retail chains, a pigeon flock over the entrance undercuts the brand image you pay to maintain.
Choosing the right netting
Material
Professional exclusion work relies on UV-stabilized, knotted or high-density polyethylene (HDPE) netting. Wildlife guidance referenced by the U.S. Fish & Wildlife Service warns against thin, flimsy plastic netting, because birds can use discarded netting as nest material and become entangled. Thin netting also degrades in sunlight, so a bargain roll that fails after one or two seasons costs more once you count removal and reinstallation.
Look for netting that is UV-resistant, has enough tensile strength to hold its shape under wind load, and is designed for permanent outdoor use.
Mesh size
Mesh must be small enough that the target species cannot pass through or get a head and wing through. One manufacturer’s sizing guide lists 19 mm (3/4 inch) for sparrows, 28 mm for starlings, 40 to 50 mm for pigeons and seagulls, and 75 mm for larger birds. Mixed populations are common, so size to the smallest bird actually using the site, not the one that bothers you most.
| Bird | Typical mesh | Notes |
|---|---|---|
| Sparrows | 19 mm (3/4 in) | Small birds exploit any oversize opening |
| Starlings | 28 mm | Common around canopies and signage |
| Pigeons, gulls | 40 to 50 mm | Most common loading dock and rooftop issue |
| Larger birds | 75 mm | Confirm species before specifying |
Special case: netting near glass
If your goal is to stop birds striking windows, the rules change. U.S. Fish & Wildlife Service guidance for building managers says netting should hang taut and stand several inches in front of the glass so a bird hits the net rather than the window, with openings no larger than 1/2 inch to avoid trapping birds. The same document estimates materials for external insect-grade netting at about $1.83 per square foot as of 2026. That is a materials figure only, not an installed price.
What a good installation looks like
Installation quality is the main determinant of whether netting is safe and durable. Here is the sequence a competent crew follows.
- Survey the space. Identify the species, where they enter, roost and nest, and every structural feature the net must attach to. Measure twice. Errors in measurement are hard to fix after cutting.
- Check for active nests. See the legal section below. This step decides the schedule.
- Clean and prepare. Remove droppings, old nests and debris using proper protective equipment, then repair any damage. Droppings carry health risks and should not be dry-swept.
- Install perimeter anchoring. Attach a perimeter cable or hardware to solid structure. Attachment points should be spaced so the net has no sagging pockets.
- Hang and tension the net. The net should end up taut, often described as drum-tight. University of California extension guidance notes that netting works best when planned into a building’s design, and that retrofits take more careful tensioning to avoid both an ugly result and the risk of entrapping wildlife.
- Close every edge. Seal where the net meets walls, pipes, beams and fixtures. Birds find the one gap that remains.
- Document and schedule inspections. Photograph the finished work, record attachment points and set an inspection rhythm.
When you review a bid, ask the contractor how they handle step 6 and step 7. Vague answers there predict problems later.
Retrofit versus new build
Most commercial work is retrofit: a pigeon problem appears, then the building needs a fix. Retrofits are fully workable, but they often involve awkward geometry, existing conduits and lighting, and access constraints such as lifts or night work around store hours. If a renovation or construction project is already planned, raise bird exclusion with the design team. Designing out ledges and creating attachment points up front is cheaper than adding them later.
The legal side: nests, timing and entanglement
Nests and the Migratory Bird Treaty Act
Most wild bird nests are covered by the Migratory Bird Treaty Act. The U.S. Fish & Wildlife Service explains that the law restricts taking, possessing or selling migratory birds and their nests, eggs and parts. For a facility manager this has a direct consequence: you generally cannot just remove an occupied nest to make room for netting.
The safest approach is to install outside the nesting season. If work during breeding season is unavoidable, nests must be checked first and the contractor has to follow the applicable rules. Public-sector specifications make the same point: for example, an Indiana DOT special provision sets out status checks on nests and avoidance measures before deterrents go in on bridge work. Your facility is probably not a bridge, but the principle carries over. Species, state rules and permits vary, so confirm requirements with your contractor and, where needed, your state wildlife agency or the U.S. Fish & Wildlife Service before any nest is disturbed.
Entanglement is a maintenance failure
Birds that become entangled usually do so because the netting is loose, torn, too thin or has an opening. Guidance prepared for Defra in the UK on non-lethal alternatives, and U.S. Fish & Wildlife Service materials, both treat regular maintenance as a condition for using exclusion at all. The practical rule: inspect on a schedule, repair tears immediately, and remove any trapped bird or nest material promptly. Write inspection frequency into the service agreement so it is a deliverable, not a courtesy. If a bird is injured or trapped and you are unsure how to handle it, contact a licensed wildlife rehabilitator rather than improvising.
When netting is the wrong answer
Netting is not suited to every setting. The Fish & Wildlife Service notes, in its guidance on open water, that for larger open water areas netting becomes impractical and other approaches like closed systems or hazing are recommended. For a building, the equivalent warning applies to huge open spans and complex rooflines where a net cannot be kept tight.
Netting versus other bird deterrents for buildings
What suits a given building depends on how birds use it. Think in terms of function.
| Approach | Best for | Limits |
|---|---|---|
| Netting | Enclosed or semi-enclosed volumes: docks, canopies, trusses | Needs tension, inspection and full closure |
| Spikes and wire systems | Ledges, parapets, sign tops | Do not protect a volume; birds can nest on debris |
| Slope or ledge modification | Narrow ledges where design permits | Needs construction work, permanent |
| Visual and sound scare devices | Short-term pressure, seasonal flocks | Birds habituate over time |
| Sanitation and habitat changes | Every site | Slower, but removes the reason birds come |
Practitioners consistently advise against relying on one tool. Mississippi State University Extension points to combining exclusion with structural changes and landscape management so birds do not simply relocate to the next vulnerable spot on the property. That is the reason a netted loading dock can still leave you with pigeons on the roof edge.
The food source matters too. Overflowing dumpsters, spilled food at a restaurant patio and fruiting trees by an entrance all draw birds. Cleaning trash areas, steam cleaning dumpster pads and adjusting landscape plantings often reduce pressure before any hardware goes up.
What bird netting costs and what drives the price
We do not publish a price for this work, and we will not guess one here. Costs vary with site conditions, and published ranges from different providers are not comparable without knowing the scope. The drivers are consistent, though:
- Area and geometry. Square footage matters, but so does the number of anchor points, corners and penetrations.
- Access. Work at height needs lifts, scaffolding or rope access, and after-hours scheduling around operations.
- Material grade. UV-stabilized HDPE costs more up front than thin netting and lasts longer.
- Preparation. Removing old nests and droppings adds time and safety requirements.
- Inspection and repair. A recurring inspection plan adds ongoing cost but protects the investment.
To compare bids fairly, give every contractor the same photos, dimensions and species information, and ask each to specify mesh size, material, attachment method, inspection frequency and who handles removal if birds are found inside.
Our perspective: treat birds as a facility problem, not a product purchase
We have maintained commercial, retail, industrial, healthcare and government properties across New York, New Jersey and Connecticut for more than 30 years. Bird problems rarely show up alone. They come with clogged drains, stained pavement, dirty entrances and trash areas that feed the flock.
That is why we do not think of netting as a stand-alone purchase. Netting closes one door. If the dumpster pad is still a buffet and the landscaping still offers roosts, the birds find another door. Our view is that the durable fix combines exclusion, sanitation and site design, run on a schedule, with someone accountable for checking it.
It also matters for multi-site operators. A retail chain wants the same presentation at every location, and that is hard when a different vendor handles pests, cleaning, exterior washing and landscaping at each one. Bringing those under one contract means the people cleaning droppings, managing pests and maintaining grounds work from the same plan. Our pest control and prevention program is built around prevention rather than repeated callouts, and it follows the same logic as integrated pest management for commercial facilities: identify what draws the pest, remove it, block access, and monitor.
We also hold a firm line on animal welfare. Any barrier on a property we manage has to be safe for wildlife and inspected, or it should not go up.
— Nationwide Maintenance.
Getting help with bird pressure on your property
If birds are fouling entrances, docks or canopies at your locations, we can look at the whole picture: pest control and prevention, exterior and trash area cleaning, landscaping and building repairs, under a single contract with 24/7 emergency support. Start with our commercial pest control and prevention services, or reach us through the Nationwide Maintenance home page to discuss your sites in New York, New Jersey and Connecticut.
Property managers handling several buildings can see how we work on our facility maintenance for property managers page.
A short checklist before you sign off on a netting job
- Species identified and mesh size matched to the smallest bird present
- Material specified as UV-stabilized HDPE, not light-duty netting
- Nest check completed and installation timed around the breeding season
- Every edge, pipe and beam penetration sealed
- Netting tensioned tight, with no sagging pockets
- Written inspection schedule and repair response time
- Sanitation and food-source fixes planned alongside
- Photos and attachment records delivered at handover
FAQ
How long does bird netting last?
It depends on material, sun exposure, wind and maintenance. UV-stabilized HDPE is made for long outdoor service, while thin plastic degrades quickly. Ask your contractor for the material’s UV rating and warranty terms in writing, and plan inspections so small tears are repaired before they spread.
Can I install netting myself on a commercial building?
For work at height, over public areas or near active nests, we recommend a professional crew. Fall protection, correct anchoring and nest regulations all matter, and mistakes can injure people or birds. Smaller ground-level jobs, such as a single door recess, are less risky, but the tensioning and edge-sealing rules are the same.
Is it legal to remove a nest before installing netting?
Not always. Most wild bird nests are protected under the Migratory Bird Treaty Act, so occupied nests generally cannot be removed casually. Confirm with your contractor, and with your state wildlife agency or the U.S. Fish & Wildlife Service, before any nest is touched. Scheduling installation outside the nesting season avoids most of the problem.
Will netting stop birds hitting my windows?
It can, if it is installed taut and several inches in front of the glass with openings no larger than 1/2 inch, as the U.S. Fish & Wildlife Service guidance describes. Standard bird exclusion mesh at a larger size is not appropriate for that job. A building manager should treat window collisions as a separate project from roosting or nesting control.
Is netting enough to solve a pigeon problem?
Usually it solves the netted area and nothing else. Without sanitation, ledge changes and landscape adjustments, birds tend to move to the nearest open spot. A combined plan holds up better over time.
Sources
- U.S. Fish & Wildlife Service: Preventing Bird-Glass Collisions, for Building Managers
- U.S. Fish & Wildlife Service: Bird nests
- U.S. Fish & Wildlife Service: Avoidance and Minimization Measures, Oiled and Produced Water
- U.S. Fish & Wildlife Service
- University of California ANR: Excluding migratory birds from buildings
- Mississippi State University Extension: Vertebrate pest control
- Defra: Wild Bird General Licence Review, Annex 2
- Indiana DOT special provision on nest checks and avoidance measures
- Bird B Gone: Bird Netting mesh sizing
Recommended
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