How to Remove Cobwebs From Your Home’s Exterior

The fastest way to remove cobwebs from the outside of a house is to knock them down dry with a long-handled brush or cobweb duster, working top to bottom, then rinse any leftover silk and grime with a gentle stream of water. Spray-on products and strong chemicals are not needed. The webs will come back unless you also deal with what draws spiders to that spot, which is usually insects gathering around your outdoor lights.

Below is the full method, tool by tool and surface by surface, including stucco, eaves, window frames and screens. You’ll also find how to make the webs stay away longer and when it’s worth handing the job to someone else.

TL;DR

• Dry removal first: a long-handled brush or “webster” is the method university extension programs recommend over pesticides.
• Work top to bottom, starting at the eaves, then rinse the wall with low pressure. Never blast stucco, old paint or window seals.
• Webs return because of food and shelter. Cut back plants, change the light bulbs and keep up a regular schedule.
• A standard house wash removes algae and dirt, not spiders. If you hire it out, ask for cobweb removal by name.

Table of Contents

• Why the webs keep showing up
• What you need
• Step by step: clearing the whole exterior
• By surface: stucco, siding, windows and more
• What about a pressure washer?
• Keeping spiders from rebuilding
• Our perspective on cobwebs
• When to call a professional
• Add it to a wash with Goleta Pressure Washing
• FAQ
• Sources

Why the webs keep showing up

Most people clean a wall, feel good about it, and find new silk in the same corner a week later. That isn’t a sign you did it wrong. Spiders build where there is prey and shelter. UC Statewide IPM notes that removing a web without addressing the attractants usually means the spider rebuilds in the same place within days. Spiders also travel on the wind by releasing silk threads, a habit called ballooning, so new arrivals are normal even on a freshly cleaned house.

On the Central Coast, a few things make the effect stronger. Porch lights and landscape lighting pull in moths and gnats on foggy evenings. Eaves and window recesses give spiders a sheltered anchor point out of the marine layer’s damp. And ornamental shrubs pushed up against siding give them a bridge from the garden to the wall.

It also helps to know that spiders are not your enemy. Extension specialists point out that spiders are beneficial predators that eat many nuisance insects, so the goal is a tidy exterior, not an empty yard.

What you need

You don’t need much, and none of it is expensive.

• An extendable cobweb duster or webster. A long handle with a soft, fluffy head. Housecleaners on forums regularly mention that a duster in the $7 range with an extendable pole works and can be rinsed in a sink afterward. Treat that as one person’s report, not a price guarantee.
• A soft-bristle broom for low walls, garage doors and porch ceilings.
• A garden hose with an adjustable nozzle, set to a gentle shower or fan pattern.
• A shop vacuum with a brush attachment for dry cleaning around doors and under covered patios. Vacuuming is one of the methods University of Kentucky entomologists suggest for routine spider control.
• Gloves and safety glasses. Falling silk, dust and dead insects land on your face when you work overhead.
• A stable ladder, used only where you can stand safely. If a web is out of reach from the ground, see the section on when to call a pro.

What you can skip: bleach, vinegar sprays, essential oil blends and anything labeled as spider-repellent. The EPA explains that a cleaner marketed as removing a pest or its habitat can fall under federal pesticide registration rules, so be wary of products that make bold claims about controlling spiders. The EPA’s own guidance also stresses that prevention comes first, by removing food, water and shelter, rather than reaching for a spray.

Step by step: clearing the whole exterior

Do this on a dry, calm morning. Wind blows loosened silk back onto the wall, and wet webs smear instead of lifting off.

1. Check for dangerous spiders first. Most spiders you’ll find outdoors are harmless, but California does have a small number of medically significant species. UC Agriculture and Natural Resources says most spiders are beneficial and rarely cause harm to people. Still, wear gloves and use a tool with reach rather than your bare hand when you clear dense, messy webs close to the ground, under stacked wood, in meter boxes or in dark corners. If you see a shiny black spider with a red hourglass, don’t handle the web. Call a licensed pest control operator.
2. Start at the highest point. Begin at the eaves, soffits and fascia, then work down. Gravity does half the job, and you won’t re-dirty the areas you’ve finished.
3. Twirl, don’t scrub. Slide the duster against the surface and roll it so the silk wraps around the head instead of smearing. Sticky cobweb silk is much easier to roll than to wipe.
4. Do the corners and recesses. Window frames, door frames, light fixtures, gutters’ outer edges, downspout brackets, porch ceilings and railings all hold webs.
5. Remove egg sacs. Small tan or white silk balls are egg sacs. Lift them off with the duster or vacuum and bag them. Leaving them behind means another round of webs soon.
6. Rinse lightly. Use a garden hose on a gentle setting to wash down dust, old silk and the grayish residue webs leave behind. Rinse top to bottom.
7. Shake out or rinse the tool before you go to the next side of the house, so you aren’t moving egg sacs around.

By surface: stucco, siding, windows and more

The method is the same, but the surface decides how much force is safe.

Stucco

Stucco is porous and textured, so webs catch in every pit and ridge. Dry brushing with a soft, round-headed duster pulls silk out of the texture better than a flat broom. A vacuum with a soft brush attachment also works well on lower walls. Keep any rinsing gentle. Stucco in our area is often painted, and a harsh stream can chip aging paint or force water into hairline cracks. If the wall is also green or gray with algae, that’s a separate problem that needs a low-pressure wash with a cleaning solution, not a duster. You can read more about that in our guide to soft washing siding.

Vinyl, fiber cement and wood siding

Dry dusting first, then a low-pressure rinse. Wood siding that hasn’t been sealed recently should never get a hard spray. It splinters the grain and drives water behind the boards.

Windows, screens and frames

Frames collect the most webs because spiders anchor to the corner where glass meets the frame. Dust them off, then wipe the frame with a damp microfiber cloth. For screens, brush lightly with a soft brush, since a rough hand will stretch the mesh. Check that screens are sealed well. UC IPM advises inspecting window and door screens for a good seal to keep out spiders and the insects they feed on. Our window cleaning covers frames, tracks, sills and screens, so it’s a natural time to do both at once.

Eaves, soffits and gutters

These are the hardest places to reach and the most popular with spiders. Use a telescoping duster from the ground when you can. Gutters often hold a mix of leaves and old webs, and cleaning them removes both shelter and insect habitat.

Decks, railings and outdoor furniture

A stiff broom takes most of it. Wash the surface afterward with a hose and mild soap if the silk has gone gray and gummy.

Garage doors, fences and sheds

These attract black widows and other shelter-loving spiders because of the dark corners and clutter. Wear gloves, work with a long tool and clear stored items away from walls.

What about a pressure washer?

Extension programs do list a high-pressure hose among physical removal methods. One contractor on a pressure washing forum describes a cheap wand knocking webs off aluminum window frames. That can work on hard, sealed surfaces such as metal frames and concrete.

We don’t recommend it on most coastal homes. Stucco, older paint, wood trim, window seals and roofing materials can all be damaged by a strong stream, and water forced behind siding causes problems you won’t see until later. Pressure alone also doesn’t solve the cause. Our soft-wash approach uses low pressure and a cleaning solution, which is why it suits the delicate surfaces on homes here. For a longer explanation, see soft washing explained for coastal homes and our comparison of pressure washing and soft washing.

Keeping spiders from rebuilding

The honest answer is that you can slow them down, not stop them. These steps have the best support from university sources.

• Change the lights. Colorado State University Extension recommends yellow or sodium vapor bulbs outdoors, because they attract fewer night-flying insects. Fewer moths means less reason for spiders to settle near your door. Turning off lights you don’t need helps too.
• Trim back plants. Extension guidance suggests keeping shrubs and branches at least 12 inches from the foundation and siding, so spiders have no bridge to the wall.
• Seal gaps. UC IPM recommends sealing cracks in the foundation and gaps around windows and doors.
• Declutter near the house. Firewood stacks, boxes, and piles of leaves are favorite hiding spots. Move them away from walls.
• Clean on a schedule. Regular removal beats the occasional deep clean. UC IPM’s guidance supports routine web removal as more effective at discouraging spiders than occasional aggressive treatments, because repeated disturbance pushes them to settle elsewhere. Every couple of weeks in the busy season is a reasonable rhythm for entry areas, and monthly for the rest.
• Don’t count on pesticides. The EPA says that for most household spider problems, prevention and physical methods come first, and pesticides often give little long-term benefit.

Interior walls, ceilings and corners go through the same cycle. If you’re curious how professionals approach that side of the house, there’s a useful piece on when pros wash walls and how it’s priced.

Our perspective on cobwebs

We get asked about this a lot, usually right after a wash. A homeowner will call a week later and say the spiders came back. The truth is that a house wash and cobweb removal do different jobs. When we soft wash a home, we’re removing algae, grime and dirt, and webs often come off along the way, but that is a side effect, not the purpose. Spiders return because of food and shelter, and no cleaning solution changes that.

On the South Coast, the marine layer feeds the whole cycle. Damp mornings keep algae growing on stucco and shingles, evening lights draw insects, and spiders follow. The most useful thing we tell people is to do the simple stuff regularly: a dry duster pass, trimmed plants, warmer-toned bulbs. Then schedule a proper wash for the stains and growth that a duster can’t touch.

We also want you to know the scope of any job before it starts. The same crew that gives you the quote does the work, so if webs are a concern, say so at the start and we’ll note it on the estimate. We don’t sell spider treatments, and we won’t pretend a wash will keep them away. We’d rather you leave with accurate expectations and a house that looks great.

— Grant K.

When to call a professional

DIY is fine for ground-level and reachable areas. Hand it off when:

• Webs are at second-story eaves, high gables or over a steep roofline, where a ladder isn’t a safe option.
• You see black widow webs or egg sacs and aren’t comfortable clearing them.
• The wall has algae, mildew or dark streaking underneath the webs, which needs a wash and not a duster.
• You manage several properties and need the work done on a consistent schedule.
• You’re preparing for a sale, event or paint job and want everything done in one visit.

If you hire someone, ask directly whether cobweb removal is part of the scope. A standard house wash focuses on dirt and organic growth, not spiders, and it’s better to settle that before the day of the job than after.

Add it to a wash with Goleta Pressure Washing

We clean homes across Santa Barbara, Goleta, Eastern Goleta Valley, Montecito and Summerland using low-pressure soft washing that’s gentle on stucco, paint and shingles. House washing is priced at $250 to $500 per job, window cleaning at $150 to $400, and roof cleaning at $350 to $900. Final pricing depends on the size and condition of the home. We’re fully insured and back the work with a 100% satisfaction guarantee. You can see all of our services, or read the full house washing page for Goleta homes.

For timing, our South Coast exterior cleaning calendar shows when each task makes sense through the year.

FAQ

What is the best way to clean cobwebs outside the house?

Use a long-handled duster or brush to roll the webs off dry, starting at the eaves and working down. Follow with a gentle hose rinse for leftover silk and dust. University extension programs favor this kind of physical removal over pesticides.

Can I remove spider webs from stucco without damaging it?

Yes. Use a soft, round duster or a vacuum with a brush attachment, and keep any rinsing gentle. Avoid hard spray on stucco, especially if it’s painted or has hairline cracks. If the wall also has algae or dark staining, a low-pressure soft wash is the safer fix.

Why do the webs come back so quickly?

Spiders build where insects gather and shelter is available, and they also drift in on silk threads in the wind. If you remove a web without changing the lighting or trimming plants near the wall, a spider will often rebuild within days. Regular removal and fewer insects are what slow it down.

Will vinegar, essential oils or a cleaning spray keep spiders away?

There’s no solid evidence that they do. The EPA cautions that cleaning products making pest-control claims may be regulated as pesticides, and extension guidance puts prevention and physical removal first. Save your money for a good duster and better light bulbs.

Does house washing remove cobwebs?

Usually some, but that isn’t what it’s designed for. A house wash targets dirt, algae and mildew. If you want the webs cleared too, ask for it when you book so the crew includes it in the job.

Sources

• Spiders, UC Statewide IPM Program
• Spiders in the Home, Colorado State University Extension
• Eliminating Spiders Around Homes and Buildings, University of Kentucky Entomology
• Cobwebs Everywhere?, UC ANR Pests in the Urban Landscape
• Spider Web Covering Yard and What to Do About It, Ask Extension
• Do’s and Don’ts of Pest Control, US EPA
• Determining if a Cleaning Product Is a Pesticide Under FIFRA, US EPA
• What do you use for recurring spider webs outside?, Reddit r/Cleaningandtidying
• What is the best way to remove spider webs?, Pressure Washing Resource

Recommended

• Black Streaks on Your Santa Barbara Roof
• Roof Moss Removal: Safe DIY Steps and When to Hire a Pro
• How to Choose an Exterior Cleaning Company in Santa Barbara
• Whiten Gutters Fast for Coastal Homes Without a Pressure Washer