A chimney sweep removes the creosote, soot and blockages that build up inside your flue and turn an ordinary fire into a chimney fire. Chimney Sweep Bros has been sweeping and inspecting chimneys across Orland Park and the Southwest Suburbs for over five years. Every sweep includes a Level 1 inspection, we work under a sealed vacuum so nothing lands on your floor, and we tell you what we found before we leave. We are insured, we answer the phone seven days a week, and you can reach us at (708) 432-3430.
Signs your chimney needs sweeping now
You do not have to wait for an annual reminder. Call sooner if you notice any of these:
- Smoke rolling back into the room when you light a fire — the flue is restricted or the draft has reversed.
- A campfire or tar smell in the room when the fireplace is cold, worst on humid days.
- Black, flaky or shiny buildup visible on the flue wall or damper.
- Fires that are hard to start or that burn lazily and smoulder.
- Debris, twigs or animal noise in the flue — a nest is a full blockage.
- You just bought the house and have no record of the chimney ever being serviced.
What we actually do during a sweep
- Seal and protect. Drop cloths go down and the fireplace opening is sealed. A HEPA vacuum runs the whole visit, holding the firebox at negative pressure so dust travels into the machine and not into your room.
- Inspect before we touch anything. We look at the firebox, damper, smoke chamber and flue with a light and camera so we can see the condition underneath the soot.
- Sweep the flue. Rotary brushes and rods sized to your flue scrub the walls from the bottom up, taking creosote and soot down into the vacuum.
- Clear the smoke shelf and firebox. This is where the debris collects and where most sweeps get lazy.
- Check the exterior. Cap, crown and the top courses of masonry — the parts that let water in and cause the expensive problems.
- Show you the findings. Photos, a plain-English explanation, and a clear answer on whether anything needs attention.
Why creosote is the thing that matters
Every time wood burns, it releases smoke that is still full of unburned fuel. When that smoke hits a cooler flue wall it condenses into creosote. In its early stage it is a dusty soot that brushes away easily. Left alone, it hardens into a black glaze that is close to pure fuel and clings to the flue like enamel. That glaze is what burns in a chimney fire, and it burns hot enough to crack clay flue tiles and reach the framing behind the masonry.
Slow, smouldering fires and unseasoned wood make creosote faster than hot, clean fires do. If you damp your fire down overnight, or you burn wood that hisses at the ends, assume you are building creosote quickly — and get the flue looked at every year without fail.
Wood, gas and pellet — what changes
Wood-burning fireplaces and stoves are the ones that genuinely need scrubbing, because they are the only ones that make meaningful creosote. Pellet stoves burn cleaner but produce fine fly ash that packs into the vent and the exhaust path, so they need clearing on a similar schedule. Gas fireplaces make no creosote at all, but their flues still corrode, collect debris and get blocked by nests — and a blocked gas flue is a carbon monoxide problem, not a fire problem. Whatever you burn, the flue needs eyes on it once a year. Our gas fireplace service covers the gas side specifically.
What we find under the soot
A sweep is also the only honest way to find out what condition the chimney is in. Once the flue is clean we can see the things that actually put a house at risk: cracked or spalling flue tiles, a gap where the liner has pulled apart, a crumbling crown letting water down into the masonry, or a missing cap that has let a season of rain and animals inside. If we find any of it, we show you the photo and explain what it means — and if it needs work, we handle chimney repair, relining, and caps and crowns in-house.
If you would rather see the condition of the flue documented before you buy or sell a home, that is a Level 2 chimney inspection rather than a standard sweep.
When the fire will not throw heat: house pressure and wet wood
A clean chimney is only half of a fire that heats well. If you have had the flue swept and the fire still will not warm the room, two things outside the chimney are usually to blame — the air pressure in the house and the moisture in the wood.
Negative air pressure fighting the fireplace
A modern house is sealed tight, and anything that pushes air out — a kitchen or bathroom extractor, a clothes dryer, a forced-air furnace, even an upstairs window cracked open — can leave the lower floor under negative pressure. The fireplace then becomes the easiest place for replacement air to come in, so instead of smoke going up the chimney, cold air is drawn down it. The fire gasps, smoke rolls into the room, and the space never warms. You can test it by cracking a window near the fireplace: if the fire suddenly draws better, the house was starving it of air. Running bath and kitchen fans while the fire is lit is the most common trigger we hear about around Orland Park.
Wet or unseasoned wood that never gets hot
The second is the wood itself, seen from a heat point of view rather than a safety one. Freshly cut wood is close to half water by weight, and a fire spends its energy boiling that water off as steam instead of releasing heat into the room. You hear it hiss and sizzle, the flames stay low and lazy, and the firebox never gets properly hot — which in turn keeps the flue cool and the draft weak. Burn wood that has been split and stacked under cover until a moisture meter reads under twenty percent, and a fire that would not warm the room suddenly does. A quick way to judge it: dry wood is light, cracked at the ends, and knocks together with a sharp ring; wet wood is heavy and thuds.
Frequently asked questions
How often should a chimney be swept?
Most Orland Park homes that burn wood regularly need sweeping once a year. NFPA 211 calls for an annual chimney inspection regardless of how much you burn, because damage and blockages happen whether or not you light a fire. The industry trigger for cleaning is about 1/8 inch of creosote buildup — if you can scratch a pencil-lead-thick layer off the flue wall, it is time.
How long does a chimney sweep take?
A standard sweep and Level 1 inspection on a single open fireplace usually takes 45 to 90 minutes. Older masonry chimneys, heavy creosote, or a second flue add time. We give you the finding before we pack up, not days later.
Will sweeping make a mess in my living room?
No. We seal the fireplace opening, run a HEPA vacuum at negative pressure for the entire visit, and put down drop cloths. Done properly, the only evidence we were there is a clean firebox.
What is creosote and why does it matter?
Creosote is the tar-like residue that condenses on flue walls when wood smoke cools. It is the fuel for a chimney fire. Stage 1 is a light soot you can brush off; stage 3 is a hardened glaze that has to be treated or removed mechanically. The thicker it gets, the hotter and faster a flue fire burns.
Do gas fireplaces need sweeping too?
Gas appliances do not make creosote, but they still need annual attention. Gas flues collect debris, corrode from acidic condensation, and get blocked by nests — and a blocked gas flue pushes carbon monoxide back into the house. We inspect and clear gas flues; we just do not scrub them the way we do a wood flue.
My chimney smells, especially in summer. Will a sweep fix it?
Usually yes. That damp, sour smell is creosote and soot reacting to humidity, and removing the deposits removes most of the odor. If the smell persists after cleaning, the real cause is normally a draft reversal or moisture entering through a missing cap or a failed crown — all of which we check while we are there.
Can I sweep the chimney myself with a brush kit?
You can remove some soot, but you cannot see what matters. Most of the risk in a chimney is structural — cracked flue tiles, a deteriorated crown, a gap in the liner — and none of that is visible from the firebox with a brush. If you want to handle the basics yourself, our DIY guide covers what is genuinely safe to do at home and what is not.
Do I need to be home during the appointment?
Yes, someone over 18 should be there to let us in and to hear the findings. We walk you through anything we find, show you photos of the flue, and answer questions on the spot before we leave.
Book a chimney sweep in Orland Park
We serve Orland Park, Tinley Park, Palos Heights, Homer Glen, Mokena and the surrounding Southwest Suburbs, seven days a week from 7:00am to 7:00pm. Call (708) 432-3430 for a time that works, or book online and we will call you back to confirm. Price is agreed up front, before any work starts — see our pricing.