Buying a home, getting ready to sell or simply planning the year’s upkeep can all bring the chimney into focus. An inspection report might mention it, or a neighbor might point out something odd on the roof. People in Mission who search for “chimney flashing services” at moments like these want straight facts, and that is what this page offers: a calm, practical look at chimney flashing repair, what it involves and how to plan for it sensibly.

Sometimes yes, often no, and the deciding factor is whether the damage touches the path the smoke takes. A chipped brick on the outside of the stack is not going to change how the fire drafts tonight. A broken flue tile, a liner with gaps, a crown that lets rain pour into the flue or a fan that has stopped running can. When we are asked this on the phone, we usually suggest leaving the fireplace or stove cold until the chimney has been checked. A few quiet evenings cost nothing, and a carbon monoxide alarm near the bedrooms is cheap protection in any home with a fuel-burning appliance.
A leaking chimney almost always has one of a few causes: a missing or damaged cap, a cracked crown, failed flashing where the chimney meets the roof, or porous bricks and mortar soaking up rain. On factory-built chimneys, a rusted or flat chase cover is a frequent culprit. Water may show up far from where it enters, running along the flue or the framing before it appears as a stain. Note when the leak happens, whether in every rain or only when wind blows from one direction, and where you see it. Those details help narrow down the source quickly.
We run repairs in a set order: confirm, protect, fix, test, explain. Confirming means checking the chimney ourselves rather than relying only on the phone description, because the cause of a leak or a stuck part is not always where it seems. Protecting covers drop cloths inside and care around shrubs and shingles outside. The repair itself depends on the part involved. Testing might mean running water over new flashing, cycling a damper several times or checking draft with a little smoke. We finish by walking you through what we did and showing photos of areas you cannot see from the ground.
Chimney flashing is repaired by resealing it when the metal is still sound or by replacing it when it is rusted, bent or installed incorrectly. Resealing means cleaning out failed caulk and applying a new flexible sealant where the counter-flashing meets the brick. Replacement involves lifting the surrounding shingles, fitting new step flashing piece by piece, cutting a groove into a mortar joint for new counter-flashing and sealing it in. Wide chimneys may also get a cricket, a small peaked diverter on the uphill side that steers water around. Sealant alone is a short-term fix when the metal underneath has failed.
A cricket, also called a saddle, is a small peaked structure built on the uphill side of a chimney so rain and snow split and flow around it instead of piling up against the brick. It is framed, sheathed and covered with metal or roofing, then tied into the flashing. Wide chimneys and chimneys on low-slope roofs benefit most, because water and debris collect behind them. Signs that one is missing include leaves packed behind the chimney and leaks that appear on the uphill side. If you are comparing quotes for “chimney flashing services”, ask whether a cricket is included or recommended.
Well-installed metal flashing often lasts as long as the roof around it, sometimes longer, while the sealant along the counter flashing usually needs renewing sooner. Lifespan depends on the metal, how it was fastened, sun exposure and whether the chimney moves or settles. Flashing that relies on tar or caulk instead of proper overlaps may start leaking within a few seasons. A check during each yearly chimney inspection, looking for lifted edges and cracked sealant, is the simplest way to stay ahead of it. Small reseals during chimney flashing repair cost far less than repairing a soaked ceiling later.
Mention what the chimney is made of, what it serves and what you have noticed, because a few details on the phone save a lot of time on the roof. We ask which appliances use the flue, how many stories the house has and how steep the roof is. We ask what you have seen: a stain, debris in the firebox, a stuck handle, a rattling cap, smoke in the room. We ask when it started and whether a roofer or another contractor worked nearby recently. Two quick phone snapshots, one of the chimney top from the yard and one of the problem area inside, often tell us which parts and ladders to bring on the first trip.
A clear hearth, a cold fireplace and room for a ladder cover most of what we need. We lay drop cloths in front of the fireplace, so a few feet of open floor helps, and glass doors or screens may need to come off. Outside, our ladders go on firm, level ground near the chimney; parked cars, garden beds and stored items in that spot slow the setup. We also like to know where the attic hatch or basement access is if the repair could involve them. Pets are happier in a closed room, since we will be going in and out of doors often.
Comparing chimney repair quotes is easiest when each one describes the same work. Check that every quote names the parts being repaired, the materials, how far the work extends, for example the whole chimney or just the top courses, and whether clean-up, disposal and any permits are included. Look at how each company would handle extra damage found during the job. A much lower quote often covers less: a sealant coating instead of a new crown, or patching a few joints instead of repointing the weathered side. A fair quote is specific, in writing and explained without pressure.
A proper look at your chimney means one less worry for everyone under your roof. We explain what we checked and what we recommend, step by step, in plain words. Call (778) 745-4769 to book chimney flashing repair in Mission.
Flue last swept long ago? Chimney Cleaning in Mission
Chimney Sweep visits that leave Mission living rooms clean
What's included in Chimney Sweep Services around Mission?
What Fireplace Experts check in your Mission chimney
Logs lifted, embers reset: Gas Fireplace Cleaning near Mission
Yearly Gas Fireplace Maintenance in Mission, before the cold arrives