Leaning chimney repair cost: what to ask the seller for

How much does it cost to fix a leaning chimney?

Leaning chimney repair cost depends on why it leans, so get written bids before your deadline: a mason for mortar and straps, a foundation repair contractor for any pier work. One Long Island contractor prices a minor lean fix needing limited structural work at $1,000 to $3,500. A full rebuild of a severely leaning chimney there often runs $4,000 to $15,000 or more.

Key takeaways

• Ask your inspector for the width of any gap between chimney and house, so bids match.
• Helical piers under a weak footing are priced per pier. Ask how many each bid assumes.
• Significant chimney work can need a permit. Ask whether each bid includes it.

What does each type of chimney repair cost?

Repair cost depends on scope, and these local contractors' prices show how far apart the scopes sit.

Kept prices every line of an inspection report for $79, usually under 4 hours, and marks the ones that need a professional's quote. To price the other lines on your report, try Kept.

Here is one real case. The Long Island contractor describes a Brookhaven brick chimney with a visible tilt and separating mortar. It needed a partial rebuild above the roofline, at $4,000 to $8,000 or more depending on height and condition. Your request for a chimney like that is the bid's total, plus the permit if the bid leaves it out.

The written bids at your chosen scope replace every figure here.

Is a leaning chimney dangerous?

It can be. InterNACHI, the International Association of Certified Home Inspectors, calls chimneys "among the heaviest and most structurally vulnerable of all exterior components of a building." It says a collapse "can lead to death," and that "wind and other elements may cause an already weakened chimney to collapse."

The lean affects the fireplace too. InterNACHI says leaning chimneys "can also make using the fireplace dangerous." Cracks and openings around the fireplace can let sparks or smoke into the rooms or the hidden spaces inside walls and ceilings.

So before any money talk, have a mason inspect it inside your deadline. InterNACHI says a more thorough chimney inspection may also be considered. If the footing is in doubt, a structural engineer answers what is happening underneath. Getting a structural engineer's inspection before buying covers that visit, and how to get repair estimates during the inspection period covers booking it fast.

What causes a chimney to lean?

The Long Island contractor says a lean is often caused by foundation movement, eroded mortar joints or long-term water damage. InterNACHI's collapse checklist puts visible tilting next to three footing defects:

• A footing too thin or too small to carry the chimney's weight.
• A footing worn down by weather, frost, or loose or poor construction.
• Weak soil underneath, including eroded or settled soil, frost heave and expansive clay.

It also lists missing or weak steel straps, which tie the chimney to the house at the roof and floor levels. InterNACHI says any gap between chimney and house should be measured often to see whether it is growing. Ask your inspector to note the gap's width, so each bidder starts from the same number.

If your report also flags a foundation crack, tell whoever evaluates the chimney. The foundation and structure findings guide covers the other structural lines a report can turn up.

How do you fix a leaning chimney?

For a weakened chimney, InterNACHI lists two fixes: strengthen it by repairing its weak areas, or tear it down and replace it with a flue or a stronger chimney. The cause decides which one you get.

• Mortar and straps (a mason). Tuckpointing, also called repointing, means removing worn mortar joints and replacing them with fresh, matched mortar, as the Long Island contractor describes it. It fixes joints, not a sinking footing.
• The footing (a foundation repair contractor). The Long Island contractor prices foundation stabilization with helical piers as its own job.
• A rebuild. It says spot repairs are often not enough when a chimney leans significantly or pulls away from the house. A rebuild can stop above the roofline or go down to the foundation.

A Ruskin, Florida roofer says some sections of a leaning chimney can be reinforced and tuckpointed, but often a rebuild is needed. InterNACHI tells homeowners to get any required permits from the local building department before significant chimney work.

What should I ask the seller for?

Ask for one specific fix, with the bids attached. The line names the scope, the trade and where the figure came from: "Repoint and strap the leaning chimney (licensed mason) and stabilize its footing (foundation repair contractor), per the attached written quotes, permit included."

If the seller does the work, ask for the paid invoice and the permit sign-off before closing. What to ask for after a home inspection covers where this line sits on your list. The buyer repair request letter template covers the wording around it.

What if the seller says no?

Then decide whether you can carry the bid yourself. Once the cause is named and the trades have priced it, this is a known cost. Until then, a full rebuild is still on the table. When to walk away after a home inspection walks through that call. Your contract sets the deadline and your right to cancel, so confirm both with your agent.

How do you know a chimney needs tuckpointing?

A chimney needs tuckpointing when its mortar fails. The Florida roofer names three signs: cracked or crumbling mortar, mortar recessed a quarter to half an inch, and mortar untouched for 20 to 30 years. InterNACHI adds a test: mortar that crumbles when poked with a screwdriver. Missing bricks are a different job, the roofer says, because the bricks themselves need replacing.

Does homeowners insurance cover a leaning chimney?

Don't count on it. In Texas, the Texas Department of Insurance lists wear and tear, and earthquakes or earth movement, among the damages most policies don't cover. It also says coverages vary by company, so wherever you buy, ask the agent quoting your policy before you close.

How do I know what the rest of my report is worth?

Price every line before you write the request. The chimney waits on the bids. The smaller lines don't have to.

If the chimney is one line among many, upload your inspection report to Kept and spend your remaining days on the chimney bid.

Sources

• InterNACHI, Chimney Inspection: Preventing Collapse
• Sunrise Roofing & Chimney, Chimney Repair Cost in Long Island
• ChimneyCostGuide, Chimney Repair Cost
• A O Handy, How Much Does It Cost to Tuckpoint a Chimney?
• Steadfast Roofing, How To Tell If Your Chimney Needs Tuckpointing
• Texas Department of Insurance, Home Insurance Guide