The short version
Around Scarborough, flies are busiest from about May through September. Find their source: trash, drains, compost or a dead animal. Remove it, then seal gaps and screens.
- Flies breed in something nearby.
- Check trash, drains and compost first.
- Tape a drain overnight to test it.
- Big shiny flies can mean a dead animal.
- Screens and door sweeps keep them out.
Anyone in Scarborough who wants flies out of the house.
What to look for
Flies don't come from nowhere. They breed in something nearby. In summer heat, eggs become adults in about a week. Spraying the flies you see won't stop new ones.
- 1Flies gathering at sunny windows.
- 2Tiny fuzzy flies near sinks and drains.
- 3Shiny green or blue flies indoors.
- 4Maggots in trash bins.
- 5Flies around compost or pet waste.
- 6A sudden bad smell with flies.
Why it’s worth acting soon
- Flies carry germs onto food and counters.
- Populations grow fast in warm weather.
- A dead animal smell gets worse.
- Cluster flies return every fall.
Treatment options and typical costs
Source Inspection and Fly Identification
$75–$200
Some Scarborough providers fold the inspection into the first service visit, so ask how it is billed. Either way, finding the source is the whole job.
- Time
- 45–90 minutes
- Best for
- Every job; the species points to the breeding site
Exclusion: Screens, Door Sweeps and Air Curtains
$150–$450 (air curtains more)
For a home, that means tight screens and door sweeps. It is simple work with a long payoff.
- Time
- 1–4 hours
- Best for
- Buildings with steady fly entry from outside
Cluster-Fly Void Treatment, Sealing and Follow-Up Monitoring
$150–$500; follow-ups $50–$150
Follow-up visits let a provider check sticky monitors, swap trap boards and confirm the breeding source has stayed fixed. One return visit is typical for homes.
- Time
- 1–3 hours, plus scheduled checks
- Best for
- Cluster flies each fall; ongoing checks for commercial sites
Light Traps, Baits and Residual Resting-Surface Treatment
$150–$450
A pro should explain that adult control alone is temporary. If the source is not fixed, traps simply refill.
- Time
- 1–2 hours
- Best for
- Knocking down adults while sources are fixed
Prices are typical published ranges. Ask what’s included before you compare quotes.
Cluster flies spend the winter in attics and wall voids, then come out on warm days.Which flies show up around Scarborough.
Blow flies are shiny green or blue. A sudden swarm often means something died nearby. Cluster flies hide in attics and walls around Scarborough for winter. They show up at windows on warm days. Fungus gnats hover around overwatered houseplants. House flies are the most common around Scarborough. They breed in trash, compost and manure. Drain flies are tiny and fuzzy. They breed in the slime inside drains.
Local flies conditions in Scarborough.
An inspection in Scarborough usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Scarborough's seasonal timing lets you schedule treatment before the busy stretch rather than after it, which usually means faster service and a more accurate quote. A provider who works Scarborough and Maine every day can point out the specific conditions that matter most here, and getting the scope, price, and follow-up terms in writing makes it easier to compare options. Scarborough sits in a humid continental climate, and that sets the pace for fly activity here: spring through fall; cluster flies overwinter indoors. For Scarborough homes, the area is mostly suburban, so flies pressure can differ from one block to the next depending on how tight the entry points are and how much food, water, or shelter is close by.
Trash bins are the top source in summer. Keep lids closed and rinse bins every week or two.Fly season in Scarborough.
Cluster flies move into walls in fall. The season is short but busy. Seal gaps before September.
Finding the source.
Flies stuck to it mean the drain is the source. Bad smell plus big shiny flies? Likely a dead animal. From Scarborough out to Portland and South Portland, trash bins in summer are the usual culprit. Watch where flies gather and where they're coming from. Check trash bins, recycling and compost first. Tape over a drain overnight.
A year of flies in Scarborough.
- Fall: cluster flies move into walls. Seal gaps early. - Summer: peak season in Scarborough. Empty trash often. - Spring: flies return in May. - Winter: cluster flies appear at windows on warm days.
Which fly is it?
- Fungus gnat: tiny and black, near plants. - Cluster fly: big, slow, golden hairs. - Blow fly: shiny green, blue or bronze. - Drain fly: tiny, fuzzy, moth-like wings. - House fly: gray, a quarter inch, everywhere. - Fruit fly: tan with red eyes, near ripe fruit.
Cleaning a drain fly drain.
- Check: tape over the drain to see if flies still emerge. - Repeat: do it daily for a week. - Enzyme: pour in an enzyme drain cleaner at night. - Scrub: run a stiff brush down the drain. - Skip: bleach alone doesn’t clear the slime.
Keeping flies out.
- Compost: cover it and keep it away from doors. - Trash: keep lids closed and rinse bins. - Sweeps: add door sweeps to exterior doors. - Screens: patch holes in windows and doors. - Pets: pick up waste daily.
Fly traps that actually help.
- Swatter: still works for a few strays. - Bait traps: hang them outside, away from doors. - UV light traps: best for kitchens and businesses. - Sticky ribbons: fine for garages and sheds. - Skip: bug bombs. They don’t reach the source.
If something died nearby.
Wear gloves, bag it, and disinfect the spot. Follow the smell and the flies. The flies stop once the source is gone. A wall may need a small hole opened.
Flies and pets.
Clean up the yard daily in summer. Pick up food bowls after meals. Pet food and waste draw flies fast. Ask your vet about protection. Flies biting a dog's ears are usually stable flies.
Flies at a business.
Seal dumpsters and clean them weekly. Restaurants and food businesses need a steady routine. Schedule drain cleaning and regular service visits. Use air curtains or strip doors at busy entries.
Flies and food safety.
Cover food outdoors and wipe counters often. Flies land on trash and then on food. Keep fruit in the fridge in summer. Throw out food flies have landed on for long.
What a fly visit looks like.
They check trash areas, drains, attics and gaps by doors. The tech looks for the source first. Traps help confirm the problem is gone. Then they clean, seal or treat what they find.
Screens and doors.
- Patio doors: a screen door helps in summer. - Doors: add sweeps and keep them closed. - Screens: patch holes and check the corners. - Fans: a fan by the door keeps flies moving on.
Compost and yard waste.
Keep compost covered and turn it often. Flies breed in wet, rotting material. Pick up fruit and pet waste every few days. Bag clippings.
Trash day habits.
Rinse bins every couple of weeks in warm weather. Bag food scraps tightly before they go in the bin. Keep lids shut and park bins away from doors.
Questions to ask before you sign.
- Are follow-up visits included? - What will you clean, seal or treat? - Where are they breeding? - What kind of fly is it? - Is dead animal removal extra?
What affects the price
- Air curtain installation for commercial doors.
- Whether a dead animal must be located and removed.
- Home versus restaurant or multifamily building.
- Follow-up visits and monitor replacement.
- Travel distance and local labor rates.
- Number of breeding sources found.
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What bothers you most about flies?
When to call for help
if cluster flies come back every fall. Businesses usually need regular service. Call if you can't find the source after a few days. if you smell something dead in a wall.
What you can do yourself
Clean drains, rinse bins and fix screens. A pro helps with hidden sources, walls and attics. Most home fly problems are DIY. Find the source and remove it.
Flies in Scarborough
In Scarborough's neighborhoods, the usual sources are trash bins, compost, pet waste and drains. With about 47 inches of rain a year, damp spots around Scarborough also breed small flies. Summer highs near 78°F in Scarborough speed up the fly life cycle, so trash and compost need extra care.
Fly tips from the experts
Where are the flies coming from?
The kind of fly tells you where to look. Around Scarborough, Maine, note its size, where it gathers and when it shows up. Then go after the source.
Small flies near drains
Tiny, fuzzy flies near a sink or shower usually breed in the slimy film inside the drain. Scrub the drain with a stiff brush. Spraying the adults won’t stop them.
UC IPM: drain fliesHouse flies around doors and trash
House flies breed in garbage, pet waste and rotting plants. Clear those out first, then add screens and keep doors closed. Traps help, but they don’t fix the source.
EPA: managing fliesSlow flies at the windows in fall?
In colder states like Maine, sluggish flies at upstairs windows in fall, winter or early spring are often cluster flies. They spend winter in attics and walls but don’t breed indoors. Sealing gaps outside in late summer keeps them out.
University of Minnesota Extension: fliesBased on guidance from university extension services and the EPA.
How we check our sourcesLocal research
Flies in Scarborough, ME: what the public record shows
Before you compare quotes, it helps to know which flies actually live in Maine, when they are busiest around Scarborough, and what the state figures look like. Everything below links to the agency or university page it came from.
Fly species recorded in Maine
- House fly (Musca domestica) — Non-biting; breeds in manure, garbage, lawn clippings, decaying produce. 45 days at 60°F to 7 days at 95°F. Carries bacteria and viruses causing diarrhea, cholera, food poisonin…
When flies are busiest around Scarborough
Short outdoor season; cluster flies seek indoor shelter in fall and reappear indoors through winter and early spring.
UMaine Extension treats cluster flies as a structural exclusion problem, with prevention fact sheets aimed at keeping the flies from finding their way indoors.
Sources: University of Maine Cooperative Extension; Texas A&M AgriLife Extension; University of New Hampshire Extension; Flies (Home and Landscape). Figures are quoted as the source prints them. How we check our sources
Simple ways to keep flies away
- Keep trash bins closed and rinse them.
- Take trash out often in summer.
- Repair window and door screens.
- Add door sweeps.
- Pick up pet waste daily.
- Clean drains with a brush and enzyme cleaner.
A good quote names the fly, the source, and what will be cleaned, sealed or treated.Did you know?
Fly specks on ceilings are regurgitated food and waste
House flies taste food with their feet
Questions people ask
Can flies come from my neighbor's property?
Your own trash and compost still matter most. House flies travel a mile or more. Yes.
How do I get rid of drain flies for good?
Bleach alone won't do it. Repeat for a week. Then use an enzyme cleaner. Scrub the drain with a stiff brush.
Are fly control treatments safe for kids and pets?
Ask what product they use. Traps and sealing are the gentlest options. Used by the label, yes.
What are cluster flies and why are they in my attic?
They're large, slow flies that winter in walls and attics. They come out on warm days and gather at windows.
How long does professional fly control take to work?
Usually days, once the source is removed. Cluster flies take a season of sealing.
Do customers tell restaurants when they see a pest?
For Scarborough homes, flies are controlled by finding and removing the breeding source — the garbage, food, or moisture they are drawn to. For Scarborough homes, cleaning the source and setting traps handles the adults, and because flies reproduce quickly, source removal is the part that actually stops them.
What does professional fruit fly control cost?
One hundred to 175 dollars is what Local quotes vary; ask for a written estimate. It's a published estimate, not a local quote.
Are cluster flies common in Scarborough?
Yes, they're a fall and winter nuisance around Scarborough. Seal gaps around windows and siding before September.
When is fly season in Scarborough?
Flies are busiest from about May through September. Cluster flies also appear at windows in winter.
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Sources (13)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Fly Exterminator · Updated September 11, 2026 · How we write these guides