7 Signs Your Greenwood Village Chimney Needs a Sweep AND a Masonry Inspection (Older Homes & Brick Quirks)

Guide · October 25, 2026

If you’re hiring a chimney sweep in Greenwood Village, CO, don’t stop at the sweep. Older brick homes here, especially those near the foothills or older neighborhoods like the Village Green area, often hide masonry damage behind thick brickwork. A professional chimney sweep should inspect your masonry for cracks, mortar deterioration, and water damage, which can turn a $150 sweep into a $2,000 repair if ignored. The Chimney Safety Institute of America recommends combining inspections with cleanings for homes built before 1980, and Greenwood Village’s mix of historic and older brick homes fits that risk profile perfectly.

1. A chimney inspection is not the same as a chimney sweep, and Greenwood Village’s older brick homes need both

A chimney inspection is a visual and instrumental check of your chimney’s structure, liner, and flue for damage, blockages, or safety hazards. A chimney sweep, meanwhile, removes soot, creosote, and debris from the flue. In Greenwood Village, where many homes date back to the 1950s–70s with original brick masonry, skipping the inspection after a sweep is like driving a car without checking the brakes, you might not notice the problem until it’s too late. For example, a home on South Parker Road with a 60-year-old chimney might pass a sweep but fail an inspection due to hidden mortar crumbling from winter freeze-thaw cycles. Always ask your Greenwood Village chimney sweep to perform a Level 2 inspection (which includes looking at the chimney’s interior and masonry) if your home is older than 30 years. Learn more about inspection levels and what they cover.

2. Creosote buildup that looks like ‘chocolate’ or ‘tar’, this isn’t just a sweep job, it’s a fire risk

Creosote is the sticky, sooty film that coats chimney walls when wood doesn’t burn cleanly, especially in older brick systems. In Greenwood Village, where many homeowners switch to wood fireplaces in winter, creosote builds up faster than in drier climates. If your chimney sweep finds Stage 2 (tar-like) or Stage 3 (hard, glassy) creosote, it’s not just a cleaning issue, it’s a fire hazard. The National Fire Protection Association (NFPA) reports that creosote is involved in 25% of all chimney fires, and Greenwood Village’s older brick homes with single-wall liners (common in pre-1980 builds) are especially vulnerable. A sweep alone won’t fix this; your Greenwood Village chimney sweep should also check for draft issues, improper burning techniques, or a damaged liner that’s trapping smoke and accelerating creosote buildup. If the creosote is thicker than 1/8 inch, the Chimney Safety Institute of America recommends a full inspection for potential liner or masonry damage. The NFPA’s chimney fire prevention guidelines

3. Cracks in the masonry or mortar joints wider than 1/4 inch, this is how water gets in

Greenwood Village’s elevation and seasonal temperature swings (from 90°F summers to sub-freezing winters) create the perfect storm for masonry damage. If your chimney sweep notices cracks wider than 1/4 inch, or mortar joints pulling apart, water will seep in, freeze, expand, and weaken the brickwork over time. This isn’t just a cosmetic issue: the U.S. Environmental Protection Agency estimates that water damage accounts for 40% of all chimney failures, and in Littleton’s foothills area (just south of Greenwood Village), the problem is worse due to higher humidity and clay soil expansion. A Greenwood Village chimney sweep should seal these cracks with a high-temperature mortar or recommend a full repointing if the damage is extensive. Ignoring this can lead to spalling (brick flaking) or even a partial chimney collapse, costing $3,000–$8,000 to repair. See how to spot early signs of water damage in your chimney.

4. Rust stains inside the fireplace or on the damper, your liner is failing

If your Greenwood Village chimney sweep finds rust stains on the damper, fireplace ledge, or inside the firebox, your chimney liner is likely corroded or missing. Older brick chimneys often have single-wall metal liners (installed in the 1960s–70s) that rust through in 10–15 years, especially if the homeowner burns wet or treated wood. The problem is worse in Greenwood Village because of the area’s higher humidity compared to Denver’s plains. A failing liner won’t just let smoke into your home, it can also allow carbon monoxide to leak back inside. The Chimney Safety Institute of America recommends replacing single-wall liners with double-wall insulated liners for safety, and your Greenwood Village chimney sweep should inspect for rust, gaps, or sagging during every cleaning. If the liner is compromised, expect to pay $1,200–$3,500 for replacement, depending on chimney height and access. Learn why liner replacement is non-negotiable for older homes.

5. White, powdery residue on the fireplace hearth, this means your flue isn’t venting properly

That white, chalky substance on your hearth isn’t just dust, it’s sulfur deposits from incomplete combustion, often caused by a blocked or damaged flue. In Greenwood Village, where many homes have older, unlined chimneys, poor draft or a partially collapsed liner can trap smoke and gases. If your chimney sweep finds this residue, they should check for creosote buildup higher in the flue, a collapsed liner, or even a bird’s nest blocking the top. The EPA’s Burn Wise program warns that improper venting can increase indoor air pollution by 30–50%, and in tight homes near Greenwood Village’s busy intersections (like Alameda Parkway), this can worsen respiratory issues. A Greenwood Village chimney sweep should use a chimney camera to inspect the flue for blockages or damage. If the flue is clear but the problem persists, the issue might be improper fireplace installation, common in older homes built before modern building codes. Get tips on improving your fireplace’s draft.

6. A chimney crown that’s missing, cracked, or crumbling, this is how rain gets to your masonry

The chimney crown is the concrete or mortar cap on top of your chimney, and in Greenwood Village’s mixed climate (with sudden summer storms and winter freeze-thaw cycles), it’s the first line of defense against water damage. If your Greenwood Village chimney sweep finds a cracked, missing, or sloped crown, water will seep into the masonry, freeze, and expand, eventually causing bricks to spall or the crown to collapse entirely. The Chimney Safety Institute of America recommends replacing damaged crowns with a sloped, waterproof version (costing $300–$800 in Greenwood Village). Without it, you’re looking at $1,500–$5,000 in masonry repairs down the line. Pro tip: If your crown is more than 20 years old, it’s likely deteriorated even if it looks intact. See how to extend your crown’s lifespan.

7. Birds, squirrels, or debris falling out of your chimney, this is a blockage waiting to happen

Greenwood Village’s proximity to Chatfield State Park and open spaces makes it a magnet for wildlife. If your chimney sweep pulls out nests, leaves, or animal droppings, your flue is partially blocked, reducing draft and increasing creosote buildup. Worse, animal nests can insulate the flue, trapping heat and creating hot spots that weaken the liner or masonry. The Chimney Safety Institute of America reports that animal blockages cause 10% of all chimney fires, and in Greenwood Village, raccoons and birds are the most common culprits. If your chimney sweep finds a nest, they should remove it and install a stainless steel chimney cap (costing $150–$400) to prevent future intrusions. Learn how to wildlife-proof your chimney.

Greenwood Village Chimney Sweep & Inspection Costs (2024) for Older Brick Homes
ServiceTypical Cost RangeWhen It’s NeededLocal Note
Basic Chimney Sweep (no inspection)$120–$250After every 50 cords of wood or annually for high-use fireplacesPrices vary by chimney height, taller chimneys (common in Greenwood Village’s older neighborhoods) cost more.
Level 1 Inspection (visual only)$100–$150If you’re buying a home or notice smoke smellNot enough for Greenwood Village’s brick homes, always ask for Level 2.
Level 2 Inspection (includes masonry check)$150–$300Annually for homes older than 30 yearsCovers creosote, liner, and mortar cracks, critical for Greenwood Village’s climate.
Creosote Removal (Stage 2 or 3)$200–$400If sweep finds tar-like or hard creosoteOften paired with a chimney camera inspection to check for hidden damage.
Mortar Repointing (per chimney)$800–$2,500If cracks are wider than 1/4 inchGreenwood Village’s freeze-thaw cycles accelerate this, don’t wait for bricks to spall.
Chimney Crown Repair/Replacement$300–$800If crown is cracked, missing, or slopedPrevents water damage that leads to $5,000+ masonry repairs.

Frequently Asked Questions

My Greenwood Village chimney sweep found creosote but didn’t mention masonry damage. Should I ask for a second opinion?

Yes. In Greenwood Village, where many homes have original brick chimneys from the 1950s–70s, creosote buildup often signals draft issues or a failing liner, both of which can hide masonry problems. A reputable Greenwood Village chimney sweep should always inspect the masonry when they find Stage 2 or 3 creosote, especially if your home is older than 30 years. If they don’t, ask for a Level 2 inspection (which includes masonry checks) or get a second opinion. Here’s how to choose a qualified chimney sweep in Greenwood Village.

I noticed cracks in my chimney’s mortar joints near the roofline. Is this normal for Greenwood Village’s climate?

No, it’s not normal, and it’s worse in Greenwood Village due to the freeze-thaw cycles and humidity near the foothills. Mortar cracks wider than 1/4 inch mean water is seeping in, which can lead to brick spalling or structural weakening within 2–3 years. A Greenwood Village chimney sweep should seal these cracks with high-temperature mortar or recommend repointing. Ignoring this can cost $2,000–$6,000 in repairs if the damage spreads. See how to spot early masonry damage.

My chimney sweep said my liner needs replacing. How do I know if it’s a DIY job or if I need a pro?

In Greenwood Village, liner replacement is almost always a pro job, especially for older brick chimneys. DIY kits exist, but improper installation can void warranties, create gaps, or even worsen draft issues. A professional will ensure the new liner is properly sealed, insulated, and aligned, which is critical for homes near busy areas like South Parker Road where carbon monoxide risks are higher. Expect to pay $1,200–$3,500 for a pro install, but it’s worth it to avoid $10,000+ in fire or CO poisoning damage. Learn the risks of DIY liner work.

I live in an older Greenwood Village home with a brick chimney. How often should I have a sweep AND inspection?

For Greenwood Village’s older brick homes, annual inspections and cleanings are ideal, but at minimum, inspect every 2 years and sweep after every 50 cords of wood burned. The Chimney Safety Institute of America recommends more frequent checks if you burn soft woods (pine, cedar), have a single-wall liner, or notice draft issues. In Greenwood Village’s climate, fall (before winter) and spring (after thaw) are the best times to schedule both. See our Littleton-specific maintenance schedule.

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