1950s-1970s
Ranch and split-level
Side-of-house exterior chimneys take maximum freeze-thaw exposure. In Round Lake mortar joints and flashing fail before the brick itself. Repointing on a 30 to 40 year cadence is normal for this stock.
Service area · Lake County
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Round Lake is part of the Round Lake area in northwest Lake County. Mostly postwar and recent construction with mixed chimney needs.
60073Primary ZIP
18,000+Round Lake residents
Since 1908City incorporated
WrittenRepair scope
Written scope
NFPA 211 reference
Water-entry review
ASTM C270 Mortar
About this city
Round Lake chimneys, by the numbers
Round Lake was incorporated in 1908 and houses approximately 18,000 residents in Lake County. The village is part of the larger Round Lake area along with Round Lake Beach and Round Lake Park.
Housing concentrates in 1950s through 2010s construction, mostly ranches, split-levels, and contemporary single-family homes.
Round Lake fast facts
- Incorporated
- 1908
- Population
- 18,000+
- County
- Lake County
- ZIP
- 60073
- Main corridors
- Rollins Road, Cedar Lake Road, Hart Road
- Building authority
- Village of Round Lake Community Development
By era
Common Round Lake chimney problems by housing era
Each architectural period in Round Lake has predictable chimney failure modes after enough decades of weather. Here is what to look for.
1960s-1980s
Mid-century split-level and contemporary
Multi-elevation roofs in Round Lake's mid-century stock create complex flashing geometry around chimney penetrations. Flashing failures are the most common source of interior water damage that homeowners trace to the chimney.
1980s-2000s
Prefab metal flue and chase construction
Many newer Round Lake homes use prefabricated metal flues with manufactured chimney chases instead of structural masonry. These need annual NFPA 211 Level 1 inspection, chase cover replacement, and cap replacement, not the structural repair common in older stock.
2000s-2010s
Recent tract construction
Recent Round Lake construction often uses prefabricated metal flues. These need annual NFPA 211 Level 1 inspection plus chase cover and cap maintenance, not the structural masonry work common in older areas.
Decision aid
Repair or replace, how we decide
Most Round Lake chimneys can be repaired rather than replaced. The decision usually comes down to four structural questions answered on site.
Repair when
- Mortar joints are deteriorated but the brick itself is sound
- Crown is cracked but the underlying structure holds plumb
- Cap is rusted or missing but flue tile is intact
- Flashing leaks but the chimney has no settlement cracking
Replace when
- Brick is spalling across more than 30 percent of the chimney face
- The chimney is leaning, settling, or pulling away from the house
- Flue tile is cracked, displaced, or missing in multiple places
- Internal liner has corroded through and chimney is unlined
Local services
What we do in Round Lake
The full residential service catalog, dispatched from our Park Ridge office to Round Lake addresses.
On the map
Round Lake, IL
USDA Zone 6a; inland Lake County climate with 30 to 40 freeze-thaw cycles per winter.
Round Lake FAQs
Questions from Round Lake homeowners
Round Lake is approximately 50 to 60 minutes drive from our Park Ridge office. Inquiries received during business hours are typically returned within two hours and inspection windows are usually available within one to two business days. Active leaks should be called in directly to (847) 685-1043 for priority dispatch.
The Round Lake Community Development department requires permits for structural chimney rebuilds, full chimney replacements, and changes that alter the flue path. Routine repairs such as tuckpointing, crown sealing, cap replacement, and cleaning generally do not require a permit. We pull and manage permits on permit-required jobs.
Mid-century and newer Round Lake chimneys typically need flashing repair, crown sealing, and annual NFPA 211 inspection of prefab flues.
Delta Chimneys dispatches every Round Lake chimney job from our Park Ridge headquarters. We are not a national franchise or call-center operator. The crew that quotes the job is the crew that does the work, every time.
Yes. Round Lake has substantial mid-century ranch housing stock that requires lime-rich Type N mortar (ASTM C270) for repointing and crown rebuilds. Mismatching with modern Portland-heavy mortar damages original brick within 5 to 10 years. We match mortar by sample on historic homes.
Also nearby
We work the cities next door, too.
Our crews dispatch the same way to these neighbors.
Local dispatch
Need chimney or fireplace work in Round Lake?
Tell us the issue and an inspection window that works.