Tewksbury, MA · Middlesex County

Squirrel in Chimney in Tewksbury, MA

Humane removal of birds, squirrels, raccoons, bats, and nesting debris from your chimney, followed by a full flue cleanout and exclusion work so wildlife never moves back in. Most animal and nest removals in the Boston area run a typical range of $249–$595 depending on the species involved, how deep the nesting material sits in the flue, and whether a full cleanout and sanitizing are needed afterward.

Call (781) 653-5644

If you are typing "squirrel in chimney" into a search bar, you are probably also bracing for the bill. Here is the honest version: chimney work follows a predictable cost curve. Caught early, most issues are modest, contained repairs. Left alone through a few New England winters, the same issues spread into surrounding masonry, and the price climbs accordingly. A hairline crown crack becomes a saturated chimney top; a worn flashing joint becomes a stained ceiling and a rotten roof deck. This article is designed to help you land on the cheap end of that curve. We will cover what the symptom usually means, how a proper diagnosis works, what repairs involve, and which factors move the price. Upside Down Chimney Sweeps in Melrose serves Greater Boston, and we are happy to talk specifics at (781) 653-5644.

In Massachusetts, a chimney is not seasonal decoration — it is infrastructure. The heating season here runs from October into April, and many chimneys serve double duty, venting a wood-burning fireplace on one flue and an oil or gas heating appliance on another. That means a chimney problem can compromise not just cozy fires but the system that keeps pipes from freezing in January. It also means the flues get real use: months of thermal cycling, condensation, and byproduct accumulation every single year. A problem that might stay dormant for a decade in a milder climate gets stress-tested here every winter. That is the practical reason Massachusetts homeowners cannot treat chimney symptoms casually — the season that reveals the problem is the same season you can least afford to lose the chimney.

Chimneys hide their problems better than almost any other part of a house. The flue interior is invisible without a camera. The crown is above the roofline where nobody looks. Flashing failures leak into wall cavities and show up as mysterious stains rooms away from the chimney. Even serious creosote accumulation is out of sight the moment you step back from the firebox. This is why homeowners are so often blindsided — not because they were careless, but because the evidence was structurally concealed. It is also why the chimney trade leans so heavily on scheduled inspections rather than wait-for-symptoms maintenance. By the time a chimney problem is visible from the living room, it has usually been developing for years. The search that brought you here may be the first visible edge of something older.

Animal & Nest Removal in Tewksbury, MA

Upside Down Chimney Sweeps handles the entire problem end to end, which is what separates a chimney company from a general trapper. We remove the animal, strip out the nest, sweep the flue, sanitize the smoke shelf, verify the damper still seats, and install a properly sized stainless steel cap so the den site is closed permanently. We follow NFPA 211 and Chimney Safety Institute of America (CSIA) guidance on flue inspection during every removal, because nesting activity frequently hides damage you cannot see from the hearth. If you are hearing something in the chimney right now in Tewksbury, call (781) 653-5644 and we will walk you through what to do before we arrive.

That scratching, chirping, or frantic fluttering coming from behind your fireplace wall is one of the most common calls we take every spring and early summer. A chimney mimics the hollow tree that raccoons, squirrels, chimney swifts, and bats have denned in for thousands of years: tall, dark, sheltered from hawks and weather, and gently warmed by the house below. An uncapped flue in Tewksbury is an open invitation, and once an animal moves in you are dealing with far more than noise. Nesting material chokes the flue, droppings carry real pathogens, and a mother raccoon guarding kits on the smoke shelf will defend that ledge aggressively. We remove the animals humanely, clear every trace of the nest, and seal the chimney so it never happens again.

Please do not try to smoke an animal out. It is the single most dangerous piece of folk advice in this trade. Lighting a fire under a nest of dried twigs ignites a flue blockage directly above your firebox, and lighting one under a trapped animal usually kills it where it sits, leaving you with a carcass wedged above the damper and an odor problem that lasts weeks. Squirrels are a special case: glazed clay flue tiles offer their claws no grip, so a squirrel that falls past the smoke shelf physically cannot climb back out. It is not visiting your chimney at that point; it is trapped, dehydrating, and desperate, and it needs to be lifted out by someone with the right equipment.

What the Service Includes

1Humane Wildlife Removal

We identify the species first, because the removal method depends on it. Trapped squirrels are lifted out with padded retrieval poles or a weighted escape rope they can climb. Raccoons are removed with the litter kept together, so the mother relocates her kits instead of ripping her way back into your roofline. Birds resting above the damper are guided up and out rather than into your living room. Every removal is done from the top of the flue and the firebox simultaneously, so the animal has one calm exit path.

2Complete Nest & Debris Cleanout

A nest is never just a nest. Raccoons haul in armfuls of leaves and bark; squirrels pack the smoke shelf with insulation stolen from your own attic; swifts leave twig cups cemented to the tile with saliva. We remove every scrap with brushes, rods, and a HEPA-filtered vacuum, then scan the full flue with a camera to confirm nothing remains lodged at an offset or above the smoke chamber. Organic debris left behind is kindling sitting directly in the path of your exhaust, so partial cleanouts are not something we do.

3Protected Species Compliance

Chimney swifts are federally protected under the Migratory Bird Treaty Act, and several Massachusetts bat species have additional state protections, so timing is part of the job. When we find an active swift nest, we confirm the stage of the brood, give you a realistic fledge date, and return to clean and cap on schedule. Bat exclusions are planned around maternity season, using one-way exclusion devices rather than trapping. You stay legal, the wildlife stays alive, and your chimney still ends up sealed before the burning season.

4Sanitizing & Deodorizing

Animal occupation leaves biological residue that has no business above your firebox. Accumulated bird and bat droppings can host the fungus that causes histoplasmosis, raccoon latrines can carry roundworm, and abandoned nests shed mites and fleas that migrate into the house once their host is gone. After the physical cleanout we treat the smoke shelf, smoke chamber, and firebox with an atomized disinfectant and deodorizer formulated for chimney use. That step is also what breaks down the den scent that would otherwise advertise your flue to the next animal.

5Dead Animal Location & Removal

A sudden fly problem at the fireplace or a sweet, heavy odor that worsens on warm days usually means an animal died above the damper. Carcasses rarely sit where you can see them; they wedge on the smoke shelf, at flue offsets, or behind the damper plate. We locate the remains with an inspection camera, remove them through the firebox or from the top of the flue, and follow with the full sanitizing treatment. In Tewksbury homes with older throat dampers, we also check that decomposition fluids have not corroded the damper seat.

6Exclusion & Chimney Cap Installation

Removal without exclusion is a subscription, not a solution, because a scent-marked den draws new tenants every season. We close the entry permanently with a stainless steel cap sized to your flue, with mesh tight enough to stop bats and swifts but open enough to preserve draft, per NFPA 211 termination requirements. Multi-flue chimneys get a full-coverage cap; open masonry flues serving oil or gas appliances get screened terminations that will not clog with frost. We also point out roofline gaps and flashing lifts that give animals their approach route.

How We Diagnose and Fix It

It is tempting to skip diagnosis and jump straight to the fix, especially when a symptom seems self-explanatory. Resist that. Chimney symptoms overlap heavily: a white haze on brick, a musty smell, and a damp firebox can each stem from three or four different causes, and each cause has a different correct repair at a very different price. Contractors who quote significant work sight-unseen are guessing — and when the guess is wrong, you pay for the repair that did not solve the problem, then pay again for the one that does. A structured inspection per NFPA 211 costs a fraction of any meaningful repair and converts the project from speculation to evidence. In chimney work, the cheapest money you will ever spend is the money that ensures you fix the right thing.

When a flue can no longer safely contain heat and gases — cracked tiles, open joints, or no liner at all — relining is the fix, and stainless steel is the workhorse solution. The process: the flue is measured and the liner sized to the appliance it serves, because an oversized flue drafts poorly and condenses creosote. The stainless liner is lowered down the chimney, connected to the appliance or fireplace below, insulated in most cases to improve draft and meet listing requirements, and finished with a top plate and cap. Done properly, it creates a continuous, sealed, correctly sized passage from appliance to sky. Relining sounds invasive but usually takes about a day, involves no demolition in most homes, and is frequently the single most consequential safety upgrade an older Massachusetts chimney can receive.

Warning Signs to Watch For

You hear scratching, scurrying, or thumping inside the chimney, especially around dawn and dusk.
High-pitched chirping or raspy chattering from the flue that gets louder when a parent animal returns to feed young.
A musky, ammonia-like, or decaying odor drifts from the fireplace and gets worse on humid days.
Twigs, leaves, grass, or tufts of insulation are poking through the damper or dropping into the firebox.
Flies keep gathering at the fireplace glass or hearth, which often signals a dead animal above the damper.
A fireplace that drafted fine last season suddenly pushes smoke back into the room.
You find droppings, feathers, or shredded nesting material on the smoke shelf or hearth.
Your chimney cap is missing, visibly damaged, or was never installed in the first place.
You keep seeing squirrels or a raccoon on the roofline near the flue, particularly in early morning.
You hear frantic, repetitive scrambling that never progresses upward, the classic sound of a squirrel trapped on slick flue tile.

Why This Matters in Tewksbury

Tewksbury grew fastest in the postwar decades, so its streets are dominated by capes, ranches, and split-levels from the 1950s through the 1970s, most with a single brick chimney serving the heating system and often a modest living-room fireplace. Newer colonial subdivisions and condo developments round out the stock. Original unlined or clay-tile flues in the older homes are frequent candidates for relining.

As a Merrimack Valley town, Tewksbury gets some of the colder winters in our service area, and many homeowners here lean hard on fireplaces and wood or pellet stoves from November through March. Heavy seasonal use combined with aging mid-century flues makes fall sweeps and inspections especially worthwhile in this town.

The single greatest enemy of masonry in Tewksbury is not fire; it is water paired with our freeze-thaw climate. Brick and mortar are porous, and every rain or melting snowfall lets moisture soak in. When temperatures drop below freezing, that trapped water expands roughly nine percent, prying the material apart from within. When it thaws, the water sinks deeper into the newly opened pores and waits to freeze again. Massachusetts winters can cycle above and below freezing dozens of times, and each cycle does its increment of damage. The visible result is spalling: brick faces popping off, mortar joints crumbling, and crowns cracking. Keeping water out of the masonry in the first place is why caps, crowns, and waterproofing earn their keep here.

What It Typically Costs

The best defense against overpaying for chimney work is a contractor who shows their evidence, so here is what you should demand from anyone in our trade, including us. Ask to see photographs or video of the condition being repaired. Ask which part of NFPA 211 or the appliance manufacturer's requirements makes the work necessary rather than optional. Ask for a written, itemized estimate before work begins, and ask what happens to the price if hidden conditions appear. A reputable company answers all of this comfortably. Chimney work is invisible to the homeowner almost by definition, which is exactly why documentation, plain explanations, and written scope are not courtesies; they are the actual product.

Why Call Upside Down Chimney Sweeps

Homeowners often delay a chimney sweep because they picture soot drifting across the living room. A professional sweep should be, and with us is, a clean process from start to finish. We lay drop cloths from the door to the hearth, seal the fireplace opening, and run a HEPA-filtered vacuum the entire time the brushes are working, so fine ash goes into the machine instead of onto your furniture. Our technicians treat your home the way they would want their own treated: shoe covers on, tools organized, and the workspace left exactly as we found it, minus the creosote. When we finish, the evidence that we were there is a cleaner flue and a written report, not a mess.

Frequently Asked Questions

What kind of animal is most likely in my chimney?

In Eastern Massachusetts the usual suspects are gray squirrels, raccoons, chimney swifts, and occasionally bats or a stray bird from an open heating flue. The sounds narrow it down fast. Frantic scrambling that never gets anywhere is almost always a squirrel trapped on slick flue tile. Slow, heavy movement and low chittering, mostly at night, points to a raccoon, and if it arrived in spring she likely has kits on the smoke shelf. A rhythmic chorus of raspy chirps that erupts every few minutes is a swift nest with hungry young. Tell us what you are hearing when you call and we will usually know what we are walking into before we arrive.

The birds in my chimney are chimney swifts. Can you remove them?

Not while the nest is active, and neither can anyone else legally. Chimney swifts are protected under the federal Migratory Bird Treaty Act, which prohibits disturbing an active nest with eggs or dependent young. The good news is that swifts are on a short clock: the young typically fledge within several weeks, the noise peaks just before they leave, and the whole family departs for the season. We confirm the nest stage, protect your home in the meantime by sealing the damper so nothing ends up in your living room, and then return to remove the nest debris, sweep and sanitize the flue, and install a cap before the next nesting season.

Can I just light a fire and drive the animal out?

Please do not. If the flue is blocked by a nest, you are igniting dry tinder inside your own exhaust system, and a nest fire can crack flue tiles and extend into the structure. If the animal is trapped, which is the case for virtually every squirrel in a lined flue, it cannot climb out no matter how motivated it is, so the fire kills it above your damper and you trade a noise problem for weeks of odor, flies, and a carcass extraction. Smoke also does nothing to a raccoon on the smoke shelf except make her dig deeper. Call (781) 653-5644 instead; humane removal is usually faster than people expect.

How much does animal removal from a chimney cost?

Most jobs in the Tewksbury area land in a typical range of $249–$595, and where you fall in that range depends on a few concrete factors: the species and number of animals, how deep the nesting material extends into the flue, whether a dead animal recovery and sanitizing treatment are needed, and the condition of the flue once it is clear. A trapped squirrel lifted out of an otherwise clean chimney sits at the low end; a multi-year raccoon den packed above an offset with a full cleanout and deodorizing sits at the top. We give you a firm price after the camera look and before any work begins, so there are no surprises.

What do you do about bats in a chimney?

Bats get handled differently from everything else because Massachusetts protects them and because several local species, especially little brown bats, have been devastated by white-nose syndrome. We never trap or handle bats out of a flue. Instead we install one-way exclusion devices that let the colony exit to feed at night but not re-enter, and we only do that outside the summer maternity window, when flightless pups would otherwise be sealed inside. Once the colony is out, we clean and sanitize the flue, since accumulated guano can harbor the histoplasmosis fungus, and we cap and screen every opening so the roost is closed permanently.

How do you keep animals from coming back after removal?

Exclusion is the half of the job that actually solves the problem. An animal den is scent-marked, and that scent advertises a proven nursery site to every raccoon and squirrel that crosses your roof, which is why chimneys that get cleaned but not capped are reoccupied within a season or two. We sanitize to break down the scent, then install a stainless steel cap with welded animal-proof mesh, mechanically fastened so a raccoon cannot pry it off the flue tile. We also walk the roofline and point out flashing gaps, rotted fascia, and open ridge vents, because a determined animal denied the flue will look for the next opening.

I think the animal in my chimney is dead. Now what?

The telltale signs are a heavy, sweet odor that intensifies on warm or humid days, flies gathering at the fireplace, and the sudden end of the scratching you had been hearing. The carcass is usually wedged on the smoke shelf just behind the damper, though we sometimes find them at flue offsets higher up. We locate the remains with an inspection camera, remove them through the firebox or from the top of the flue, and then do a full sanitizing and deodorizing treatment, which is the step that actually ends the smell. Skipping that treatment is why the odor lingers for weeks in homes where someone removed the carcass but stopped there.

How quickly can you get to my home?

Animal calls get priority scheduling because most of them are genuinely time-sensitive: a trapped squirrel is dehydrating, a blocked heating flue is a carbon monoxide risk, and a raccoon actively working on your damper is doing new damage every night. We serve Tewksbury and communities across Greater Boston and Eastern Massachusetts from our shop in Melrose, and we can typically be on site the same day or next morning for an active animal situation. When you call (781) 653-5644, tell us what you are hearing and where, close the damper if it is safe to reach, keep the glass doors shut, and leave the rest to us.

Get It Handled Today

If your chimney is due, or overdue, for attention, the next step is a short phone call. Reach Upside Down Chimney Sweeps at (781) 653-5644 and we will find a time that works, usually sooner than you might expect for Tewksbury addresses given how close we are. Tell us what you have noticed, or simply tell us it has been a while; either one is a fine place to start. One visit gets you a swept flue, a documented inspection, and straight answers about anything we find along the way. Your fireplace should be the most relaxing thing in your house, not a question mark hanging over it. Let us make sure it stays that way.

Serving Tewksbury Same-Week

Our Melrose shop is 15 miles from Tewksbury. Call (781) 653-5644 for fast scheduling.

Call (781) 653-5644 Email Us

Mon–Sat: 7:00 AM – 7:00 PM · Emergency service available