Owner-operated · Homeowner guide · Cumming
How Screens Keep Bugs Out of Porches in CummingCumming · North Georgia
Cumming: A screened porch should be the one outdoor spot where gnats and mosquitoes leave you alone. When bugs still find their way in, the mesh is rarely the whole story. Fit, seals and the frame behind the screen decide whether the porch stays comfortable on a humid Cumming evening. Owner-operated, with a free written estimate.
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Homeowner guide · Cumming
How do screens keep bugs out of a Georgia screened porch?
If insects still reach the table on your Cumming porch, look past the mesh to the spline, the door sweep and the gaps along the sill and ceiling where small pests find a way in.
- The owner comes to the visit and writes the estimate himself
- Crews with 10+ years of combined experience
- Insured (general liability)
- Rated 5.0 on Google across 31 reviews as of Nov 2026
- Photos from our own jobs, not stock images
Cumming
What Kind of Screen Holds Up in Georgia Humidity
Standard fiberglass screen is a solid choice for most porches here. It handles humidity and frequent rain well, it does not rust, and when it is installed with proper tension it resists sagging and small tears. Heavier pet-resistant mesh makes sense where dogs or kids push against the panels. Whatever the material, it should be meant for outdoor exposure so long summer sun does not make it brittle.
Still, the screen itself is only part of the answer. Even good mesh lets bugs in if it sits loose in its track or leaves a gap where it meets the frame. That is why we spend as much attention on how the screen is held and sealed as on which screen is used.
Cumming
How Screen Panels Stop Gnats and Mosquitoes
Screens work as a physical barrier, and they only work when the barrier is complete. In wooded, shaded yards around communities like Windermere and Vickery, gnats are especially active at dawn and dusk, and they will find any opening. The spline that holds the mesh in its channel has to be tight all the way around, with no lifted corners or pulled edges.
A single torn corner or a spline that has popped out can let in a steady stream of tiny insects on a still evening. During a repair or a new build, we check every panel, replace damaged mesh and reset loose spline so each opening is stretched flat and sealed from edge to edge.
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Real photos from B&T projects in North Georgia, not necessarily from Cumming.
Cumming
Why Door Fit Matters More Than Screen Type
A screen door that drags, sags or leaves a gap at the bottom or latch side undoes the rest of the porch. On older homes near downtown Cumming, we often find doors that have shifted as the framing settled over time. A door that does not close flush gives mosquitoes an easy way in, especially on calm, humid nights.
Fixing it may mean adjusting or replacing hinges, adding a sweep at the bottom, squaring up the opening or rebuilding the door frame. The door should swing freely, latch fully and close against the stop with no daylight showing around it.
Cumming
Sealing the Edges Against Pollen and Bugs
The joints where the porch frame meets the house, the floor and the ceiling are where small gaps hide. Wood moves with humidity, so a gap that was closed when the porch was built can open over a few seasons. Flexible exterior sealant and well-fitted trim close those joints while still allowing the wood to move.
On larger, more wooded lots, such as some around Polo Golf & Country Club, tight edges also keep out leaf litter, seeds and spring pollen. Corners, posts and the bottom rail deserve the closest look, because that is where two pieces meet and where gaps usually start.
Cumming
Do Ceiling Fans Help Keep Bugs Away?
A fan does not replace screening, but moving air makes it harder for mosquitoes to hover and land. On a shaded porch where the air tends to sit still, a fan can make the space noticeably more pleasant. Choose a fan rated for damp or wet locations and mount it securely to framing, not just to a ceiling board.
Think of the fan as the finishing touch. If gaps exist at the door or edges, air movement alone will not keep determined gnats out. The tight enclosure comes first.
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Cumming
Why a Tight Build Matters More Than the Screen
No screen can make up for a frame that is out of square or posts that have shifted. When the opening is twisted, the mesh never sits evenly, and small gaps appear along one side. A tight build means level framing, plumb posts and a header that does not sag, so every screen sits flush in its track.
When we build or repair a porch, the framing and fit get checked before any screen goes in. That groundwork is what keeps the porch bug-tight for season after season, not just on the day it is finished. We work on porches across Cumming and in nearby Johns Creek, Alpharetta and Milton.
Cumming
How to Check Whether Your Porch Is Bug-Tight
Sit on the porch on a still evening with the lights off and look for daylight or outside light around the door, at the corners and where the frame meets the house. Anywhere light comes through, bugs can too. Listen for buzzing near one spot, since insects tend to gather where they are getting in.
If you find gaps you cannot fix with a sweep or a bit of sealant, Breno can come out in person, look over the screens, door and framing, and give you a free written estimate for the repair.
Straight answers
Cumming homeowner questions
How do I stop gnats from getting through my screened porch?
Look for small holes in the mesh and gaps at the door, corners and spline. Gnats need very little room, so even a lifted corner lets them in. Fixing those gaps usually solves the problem.
Why do mosquitoes still get in when the screens look fine?
The opening is often at the door: a worn sweep, a sagging hinge or a latch that does not pull the door tight. Edges where the porch meets the house are the next place to check.
Can pollen get through porch screens in the spring?
Some fine pollen passes through any standard mesh, but much more comes in through gaps at edges and doors. Sealing those joints cuts down on what settles on the furniture and floor.
Does a ceiling fan replace good screening?
No. A fan makes it harder for mosquitoes to settle, but it does not stop bugs from entering through gaps. It works as a complement to a tight enclosure.
How tight should a screen door close?
It should latch on its own, sit flush against the stop and leave no visible light around the edges or under the sweep when closed.
Why does porch screen pull away from the frame over time?
Humidity, temperature swings and settling make the wood move, and that can loosen the spline or open the joints. Good fastening and regular checks keep it from getting worse.
How do I know if my porch screens need repair?
Look for tears, sagging panels and light showing at the edges or corners. If insects are showing up inside regularly, there is a gap somewhere worth finding.
Is pet-resistant screen worth it on a family porch?
If dogs or kids lean or push against the panels, heavier pet-resistant mesh holds up much better than standard screen and is worth considering for the lower sections.
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Who’s doing the work
About B&T Properties
B&T Properties is run by Breno, who visits the job, writes the estimate and stays involved until the work is done. The crew has 10+ years of combined deck experience, and the company carries General Liability insurance. We work in Cumming and across North Georgia.
Upgrades
Add-ons to consider
Thinking beyond the basics? Mention any of these at your free estimate and Breno will go over what makes sense for your home.
Cover or screens
Shade, rain cover or screens, planned in from the start.
Composite decking
Low-maintenance boards in a range of colors, priced next to wood so you can compare.
Lighting
Low-voltage LED lights on stairs, posts or under the rail cap for evenings outside.
Multi-level layouts
Step down a sloped yard with separate levels for dining and lounging.
Written warranty
1-year workmanship warranty
B&T Properties warrants our workmanship for one year from completion and fixes failures caused by our work at no charge. Not covered: material defects (manufacturer warranty), normal wear, weather, misuse, lack of maintenance, or work by others. Claims in writing.
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