Fly Screens: Keep Flies, Wasps & Larger Insects Out of Your Home

June 6, 2026 By MBORMC Team 6 min read

While mosquitoes receive most of the attention, fly screens are equally important for keeping larger, more intrusive insects out of your home. Flies, wasps, hornets, and even small beetles can enter through unscreened windows and doors, contaminating food, spreading bacteria, and creating a nuisance. In this guide, we explain what a fly screen is, how it differs from a mosquito screen, what mesh density you need, and how to choose the right custom solution for your American home.

What Is a Fly Screen?

A fly screen (also called an insect screen) is a mesh barrier designed to stop larger flying insects – houseflies, bluebottles, wasps, yellow jackets, and even moths – from entering your living spaces. While a mosquito screen focuses on very fine mesh (18×18 threads per inch) to block even small mosquitoes, a fly screen can use a slightly coarser mesh (16×16 or 14×14) because flies are bigger. However, for all‑purpose protection, most homeowners prefer a medium‑density mesh that blocks both mosquitoes and flies. MBORMC’s 304 stainless steel mesh (18×18) does exactly that – it blocks mosquitoes, flies, and wasps while maintaining excellent airflow and visibility.

Why You Need a Dedicated Fly Screen

Flies are not just annoying – they are unsanitary. Houseflies breed in garbage, animal waste, and decaying organic matter, then land on your food and countertops, transferring pathogens like Salmonella, E. coli, and even parasitic worms. Wasps and hornets can sting, causing allergic reactions or severe pain. In kitchens, especially during summer cookouts, an open window without a fly screen quickly becomes a fly magnet. Restaurants, cafes, and outdoor eating areas also rely on fly screens to meet health codes and keep customers comfortable.

Many homeowners mistakenly believe that a standard mosquito screen is enough, but if the mesh is too fine (18×18 or finer), it restricts airflow slightly more. For areas where flies are the primary concern, a coarser mesh is acceptable. However, MBORMC’s 304 stainless steel mesh (18×18) strikes the perfect balance – it blocks flies, wasps, and mosquitoes simultaneously, while maintaining excellent airflow (85%+).

Types of Fly Screens

  • Fixed frame screens – Permanent screens attached to the window or door frame. Low cost but always visible and may obstruct outward‑opening windows.
  • Retractable screens – Roll up into a cassette when not needed. Ideal for windows and doors that you want to keep visually clear. MBORMC’s H01 model is a popular choice.
  • Self‑adhesive velcro screens – No‑drill, removable, and residue‑free. Perfect for renters. The hook‑and‑loop tape attaches to the frame, and the mesh presses onto it. Our H05 is the best‑selling no‑drill fly screen.
  • Magnetic fly screens – A curtain of mesh with magnetic strips down the middle, allowing hands‑free passage. Excellent for back doors, pet doors, and commercial kitchens.

Choosing the Right Mesh for Fly Screens

  • Fiberglass – Inexpensive, but sags over time, is easily torn by pets, and absorbs moisture. Lifespan 3‑5 years. Suitable for temporary or low‑use fly screens.
  • PET (polyester) – More durable than fiberglass, UV‑resistant, and does not sag. Still can be scratched by pets. Lifespan 5‑7 years. A good mid‑range option.
  • 304 stainless steel – The ultimate choice. Rust‑proof, pet‑proof (resists scratching and biting), never sags, and lasts 20+ years. The standard 18×18 mesh blocks flies, wasps, and mosquitoes equally well. Recommended for long‑term use.

Where to Install Fly Screens

  • Kitchen windows – Flies are attracted to food smells. A fly screen on the kitchen window allows ventilation without inviting insects.
  • Back and side doors – Door fly screens are essential if you frequently open doors to the garden, patio, or trash area.
  • Garage windows and doors – Garages often accumulate garbage or pet food, attracting flies. A screen keeps them out.
  • Porch, sunroom, and screened‑in patio openings – Enjoy the outdoors without being bothered by wasps and flies.
  • Commercial kitchens and restaurant pass‑through windows – Health department regulations often require fly screens.

No‑Drill Fly Screens for Renters

If you rent your home or live in a historic district, drilling into window frames is often prohibited. MBORMC’s H05 self‑adhesive velcro screen is the ideal fly screen for renters. The industrial‑grade 3M™‑style tape holds securely yet can be removed without leaving any sticky residue. When you move out, simply peel the tape off – your landlord will never know it was there. The screen itself can be rolled up and taken to your next apartment.

How to Order a Custom Fly Screen from MBORMC

  1. Measure your window or door – width and height in mm (preferred) or inches. Measure the inside frame for a flush fit.
  2. Choose your product type – H01 (retractable), H05 (velcro), FD05 (folding door), or magnetic curtain.
  3. Select mesh – for a durable fly screen, choose 304 stainless steel (pet‑proof, rust‑proof). For budget temporary use, PET is also available.
  4. Provide your details via our inquiry form or WhatsApp.
  5. Production & shipping – 7‑15 days manufacturing, then sea freight (25‑35 days) or air freight (5‑7 days) to your US address.
  6. Install in minutes – instructions and videos provided. No tools required for adhesive‑mount or magnetic screens.

Frequently Asked Questions About Fly Screens

  • Can flies bite through a fly screen? No – a properly fitted, undamaged screen stops them completely. Our 304 stainless steel mesh is too thick for flies to penetrate.
  • How do I clean a fly screen? For fixed screens, use a soft brush or vacuum. For retractable screens, wipe with a damp cloth. Stainless steel mesh can also be hosed down.
  • How long does a fly screen last? Fiberglass: 3‑5 years. PET: 5‑7 years. 304 stainless steel: 20+ years.
  • Do I need fly screens on all windows? Not necessarily – focus on kitchen windows, doors, and any openings near trash or food preparation areas.

Conclusion

A quality fly screen improves hygiene, comfort, and quality of life while reducing the need for chemical sprays indoors. Choose custom sizing, 304 stainless steel mesh for durability, and a no‑drill option if needed. MBORMC has supplied thousands of custom fly screens to American homes and businesses. Request your free quote today →