What a chimney rebuild covers
A chimney rebuild removes masonry that can no longer be saved, often the section above the roofline, and lays it back up with sound brick or stone and fresh mortar. Chimney crown rebuilding is usually part of the job, along with resealing the flashing where the chimney meets the roof so the new masonry sheds water. If the flue needs a new liner, that gets planned at the same time. The full process is explained under how chimney rebuild works.

Chimney rebuild in Lake Forest: housing age, design rules and permits
How old the housing is
In Lake Forest, 18% of housing units were built before 1940 and 24.6% between 1940 and 1969; the median year built is 1976 (CMAP Community Data Snapshot, American Community Survey 2020-2024 five-year estimates). An older house doesn't automatically need a new chimney. It does mean many chimneys have decades of weather behind them, so it's worth having the mortar, brick and crown checked before deciding between a repair and a rebuild.
Materials named in the residential design guidelines
Lake Forest's Residential Design Guidelines (Appendix 9-86C of the City Code) say chimneys visible from the exterior should be sheathed in brick, stone or stucco with clay, slate or stone caps, and should be topped with clay tile flues (source: City of Lake Forest Residential Design Guidelines, Appendix 9-86C of Section 9-86, page dated December 2003). For a rebuild, that guidance affects the materials list from the start.
Materials to settle before work begins
- Exterior sheathing: brick, stone or stucco, matched to what the house already has where possible
- Cap material: clay, slate or stone
- Flue tops: clay tile
- Crown and flashing details that suit those materials
Review before a permit is issued
Lake Forest's Residential Design Guidelines state that before a building permit is issued, architectural integrity and sensitivity to context must be shown to City staff and, in certain cases, the Building Review Board or Historic Preservation Commission. The Historic Preservation Commission reviews new construction and demolitions within the City's Historic Districts (source: City of Lake Forest Residential Design Guidelines, Appendix 9-86C of the Lake Forest City Code). In practice, a rebuild that matches the original chimney's materials and proportions is the simplest one to explain. If your home is in a Historic District, ask the City early whether your rebuild calls for Commission review.
Chimney work on the permit form
The City of Lake Forest Community Development Department's Building Permit Application lists "Chimney/Tuckpointing" as one of the scope-of-work categories on the form (source: The City of Lake Forest Building Permit Application, City document center file dated 1.30.2020). Before work is scheduled, confirm with the Community Development Department what your specific project needs.
A sensible order of steps
Get the chimney assessed, settle the scope and materials against the design guidelines, check permit and review requirements with the City, and then schedule the rebuild.
When a rebuild fits, and when a smaller repair does
A rebuild makes sense when a chimney leans, when bricks are loose or crumbling through much of a section, or when water damage has gone past the surface. If you're unsure what you're looking at, what causes a leaning or damaged chimney walks through the warning signs. Not every worn chimney needs to come down, though:
- Eroded mortar joints on otherwise solid brick are usually handled with tuckpointing.
- A cracked crown on a sound stack can often be repaired by itself.
- Scattered damaged bricks may only need masonry repair.
- A failing liner with sound masonry around it calls for liner work, not a rebuild.
An inspection, including a camera look inside the flue when needed, shows which of these applies. We do all of this work, so the recommendation comes down to the condition of your chimney.
Booking a rebuild
Request an estimate and describe what you're seeing: leaning, loose brick, water inside, or pieces falling onto the roof. You'll find more detail on scope in our chimney rebuild service overview, and you can browse other chimney and fireplace work in Lake Forest on the area page.
Sources (3)
The sources of the Lake Forest facts on this page.
- 1CMAP Community Data Snapshot | Lake Forest
- 2City of Lake Forest - Residential Design Guidelines
- 3City of Lake Forest Residential Design Guidelines - Appendix 9-86C of Section 9-86, Architectural and Site Review of the Lake Forest City Code (page dated December 2003); City of Lake Forest Residential Design Guidelines - Appendix 9-86C of the Lake Forest City Code; The City of Lake Forest - Building Permit Application (Community Development Department), City document center file dated 1.30.2020

