Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Before
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Before
AfterChimney Cleaning in McHenry, IL
Chimney cap and crown work in McHenry runs $450-$1,800 depending on whether we’re sealing a hairline crack or replacing a deteriorated crown over a converted Chain O’ Lakes cottage chimney. The freeze-thaw cycles here are brutal on exposed masonry, and the cottage-conversion stock means we see more crown failures per capita than anywhere else in our service area. Call (815) 923-3185 for a written estimate before any work starts.
McHenry’s riverfront and lake-access neighborhoods hide a specific problem: lightweight chimneys built for occasional summer use now run six months straight through heavy Illinois winters. That mismatch between original design and current demand shows up first in the crown, the concrete slab that seals the chimney top. Once it cracks, water enters the flue, freezes, and opens gaps that let combustion gases leak into living spaces. We inspect every McHenry crown with a camera scan included as standard, then quote the repair in writing before touching a tool.
Why McHenry Homes Are Different
McHenry County averages more freeze-thaw cycles per winter than the Chicago metro core, and those repeated expansions and contractions pulverize mortar joints from October through April. The historic downtown Victorians carry original lime mortar that’s already soft; the 1960s-80s ranch and split-level subdivisions have Portland cement that holds better but still succumbs to the cold. But the real outlier is the converted cottage stock around the Fox River and Chain O’ Lakes.
These structures were never engineered for continuous heating. Original owners ran wood stoves through exterior chases with no flue tile, no proper clearances, and no inspection for year-round occupancy. When we get a cleaning call from a lake-access road in McHenry, we bring liner-installation materials on the truck because the two conversations almost always merge. The long heating season - often seven months - pushes creosote accumulation past what those lightweight chimneys can safely handle.
Our Main McHenry Services
Three services account for most of our McHenry calls. Each has its own page with deeper detail on pricing and scope.
Chimney Cleaning & Sweep in McHenry
We clean and inspect chimneys across McHenry’s full housing spectrum, from historic downtown masonry to converted Chain O’ Lakes cottages. Every sweep includes an NFPA 211 Level 2 camera scan down the flue, a documented photo record under Haven Standard Clause 4, and a written price agreed before work starts. Cottage conversions especially need this documentation for insurance and resale. Chimney Cleaning & Sweep in McHenry
Chimney Repair in McHenry
Freeze-thaw damage, spalling brick, and deteriorated mortar joints keep our repair crews busy in McHenry from spring through fall. We quote repointing, crown rebuilding, and structural repairs in writing after camera inspection, with materials sourced through our Haven buying network. The 365-Day Done Right Promise applies to every repair we book. Chimney Repair in McHenry
Fireplace Services in McHenry
Fireplace insert installation, gas log conversion, and smoke chamber parging for McHenry homes that need more than a sweep. We work with the existing flue or specify liner upgrades when the appliance change demands it, always with written scope and warranty before starting. Fireplace Services in McHenry
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterChimney Cap & Crown in McHenry
Crown and cap work in McHenry is shaped by two forces: the county’s severe freeze-thaw cycling, which cracks concrete crowns faster than in milder Illinois climates, and the converted cottage stock with chimneys that were never built to shed water through a full heating season. A failed crown on one of these structures doesn’t just leak; it accelerates liner and mortar decay that can make the chimney unsafe for continued use. We inspect every crown with camera documentation and quote repairs under Haven Standard Clause 1 - written price, written scope, written warranty before any work begins. For the full scope of what we offer, see our Chimney Cap & Crown hub page.
Crown Repair
Signs you need it
Visible cracks in the concrete crown surface, water staining on interior flue walls, or pieces of concrete found in the firebox after winter.
What it costs in McHenry
Crown repair in McHenry typically runs $650-$1,200 for crack sealing and resurfacing, or $1,500-$2,800 for full crown replacement when the concrete is too deteriorated to save.
How we do it
We grind out cracks to solid substrate, apply a bonding agent, and pour new high-strength concrete with a proper drip edge and slope, then document the finished crown with photos for your record.
Crown Coating
Signs you need it
Hairline cracks less than one-eighth inch wide, minor surface spalling, or a crown that is structurally sound but no longer sheds water effectively.
What it costs in McHenry
Crown coating in McHenry ranges from $450-$850 depending on crown diameter and number of flue penetrations requiring seal detail.
How we do it
We clean and prime the crown surface, then apply a flexible elastomeric coating rated for freeze-thaw cycling, with photo documentation of coverage and thickness.
What Chimney Cap & Crown Costs in McHenry
| Item | Typical range in McHenry |
|---|---|
| Crown coating | $450 - $850 |
| Crown repair (crack/seal) | $650 - $1,200 |
| Full crown replacement | $1,500 - $2,800 |
| Single-flue cap installation | $280 - $550 |
| Multi-flue cap installation | $650 - $1,400 |
How long does a crown repair last in McHenry?
A properly poured concrete crown with correct slope and overhang lasts 20-30 years even in McHenry’s freeze-thaw climate; coating applications need refreshment every 8-12 years. We warranty crown repairs for one full year and document the finished condition with photos under Haven Standard Clause 4.
Can you match a crown coating to my cottage chimney’s unusual shape?
Yes, we custom-form crowns and apply coatings to irregular profiles common on converted Chain O’ Lakes cottages, including multiple flue penetrations and angled shoulders. The written scope specifies exactly how we’ll handle your chimney’s geometry before work starts.
Chimney Liner & Rebuild in McHenry
Liner and rebuild work in McHenry is driven by the cottage-conversion problem: hundreds of year-round homes still have unlined brick chimneys or original clay flue tiles that were never meant to handle continuous winter heating loads. When we camera-scan these flues, we regularly find cracked tiles, missing mortar between wythes, and in the worst cases, gaps that allow carbon monoxide to leak into wall cavities. Every liner job starts with NFPA 211 Level 2 inspection and ends with a documented photo record. See our Chimney Liner & Rebuild hub for full technical detail.
Stainless Steel Liner
Signs you need it
Cracked or missing clay flue tiles, excessive creosote buildup in an unlined flue, or a new appliance installation that requires a listed liner system.
What it costs in McHenry
Stainless steel liner installation in McHenry ranges from $2,800-$4,500 for a standard single-flue system, including insulation wrap and top plate.
How we do it
We measure the flue with video inspection, drop a continuous corrugated stainless tube with proper insulation, and secure it with a listed top plate and rain cap, then pressure-test and photograph the completed installation.
Partial Rebuild
Signs you need it
Spalled brick above the roofline, a leaning chimney stack, or separated wythes visible during camera inspection of the flue interior.
What it costs in McHenry
Partial rebuilds in McHenry typically run $3,500-$7,500 depending on height, scaffolding needs, and whether the crown and cap require simultaneous replacement.
How we do it
We dismantle to sound masonry, rebuild with matching brick and proper bond, install a new crown with correct slope and drip edge, and document each stage with dated photos for your record.
What Chimney Liner & Rebuild Costs in McHenry
| Item | Typical range in McHenry |
|---|---|
| Stainless steel liner (single flue) | $2,800 - $4,500 |
| Flexible liner (offset flue) | $3,200 - $5,000 |
| Liner replacement (remove and reline) | $3,500 - $5,500 |
| Partial chimney rebuild | $3,500 - $7,500 |
| Full chimney rebuild | $8,000 - $15,000 |
Do I really need a new liner, or can the chimney be used as-is?
An unlined or damaged flue in McHenry cannot be used safely for wood-burning heating; NFPA 211 requires a continuous listed liner, and our camera inspection shows you exactly what we found before any recommendation. Bring us any competitor’s written estimate for a free second opinion.
How disruptive is a liner installation?
Most McHenry liner installations take one day with minimal interior disruption; we access the flue from the top and bottom without removing walls or finishes. The written scope specifies exactly what we’ll need from you before we start.
Brands We Service in McHenry
We stock DuraFlex stainless liners, HeatShield cerfractory resurfacing products, and Gelco caps and accessories locally through our Haven buying network, with most parts available within 24-48 hours for McHenry appointments. For the full list of brands and parts we carry, see our brands page.
Pricing for Chimney Cleaning in McHenry, IL
| Service | Typical range in McHenry |
|---|---|
| Level 2 inspection with camera scan | $199 - $289 |
| Standard chimney sweep and inspection | $249 - $349 |
| Heavy creosote removal (Class III) | $400 - $650 |
| Smoke chamber parging | $800 - $1,500 |
| Firebox refractory repair | $600 - $1,200 |
| Single-flue cap installation | $280 - $550 |
| Multi-flue cap installation | $650 - $1,400 |
| Crown coating | $450 - $850 |
| Crown repair (crack/seal) | $650 - $1,200 |
| Full crown replacement | $1,500 - $2,800 |
| Stainless steel liner (single flue) | $2,800 - $4,500 |
| Partial chimney rebuild | $3,500 - $7,500 |
Prices in McHenry run toward the higher end of these ranges for converted cottages with difficult roof access or multiple flue penetrations, and for jobs requiring scaffolding on steep-pitch roofs. Every quote is delivered in writing with scope and warranty before work begins - no surprises, no post-work invoices.
Neighborhoods We Serve in McHenry
Our crews work throughout McHenry’s distinct neighborhoods, from the historic downtown core to the Chain O’ Lakes periphery. Scheduling is coordinated from our Chicago office with local dispatch to McHenry addresses, typically offering appointments within one to two weeks during peak fall season and faster availability in spring and summer.
- Historic Downtown McHenry
- Fox River waterfront and riverfront roads
- Chain O’ Lakes access neighborhoods
- Bull Valley area
- McHenry Meadows and surrounding subdivisions
Service Area - Cities Near McHenry
Level Two Chimney Co. serves McHenry and the surrounding lake-and-river corridor, including Crystal Lake, IL to the south, Cary, IL to the southeast, Wauconda, IL to the east, and Round Lake, IL to the northeast. Dispatch and scheduling are coordinated from our Chicago office; crews serve all these communities with the same written-price, camera-documented standard.
Serving McHenry, IL - Our Local Coverage Area
We’re based in the McHenry area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Chimney Cleaning in McHenry
Most chimney repairs and liner installations in McHenry require a building permit through the City of McHenry Building Department; we handle permit application as part of our written scope when it’s required. The permit cost is itemized in your upfront quote, not added later.
We typically schedule McHenry sweeps within one to two weeks during peak fall season, with faster availability in spring and summer. Live phone support runs 24/7, and we’ll text your technician’s name and ETA when they’re en route.
Yes, we regularly work the lake-access roads and unincorporated areas around McHenry’s Chain O’ Lakes communities, where cottage conversions create the specific unlined-chimney problems we’ve documented since 2009. The same written-price, camera-inspection standard applies.
Call (815) 923-3185 for a free estimate. We’ll answer with a live person, schedule your NFPA 211 Level 2 inspection, and deliver a written price before any work starts. Every job carries the 365-Day Done Right Promise and a documented photo record under Haven Standard Clause 4.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What McHenry Customers Say
"They ran a camera down the flue and showed me the cracked tiles on a screen. The previous company had swept it twice and never mentioned it."
- Gregory F."We were buying the house and needed a real inspection. The report had photographs, the standard it was done to, and a clear repair figure. The seller paid for the repair."
- Lorna D."Gas insert service done properly with the readings written down. The technician had the certification number printed on the paperwork."
- Bettina A.