Chimney Masonry Services Burnaby

Older brick chimneys and newer factory-built ones wear out in different ways, yet the questions owners ask about them are surprisingly alike. How bad is it? Can it be fixed instead of replaced? Is the fireplace safe to use in the meantime? This page answers those questions for people in Burnaby researching “chimney masonry services”, with plain detail on chimney masonry repair and the factors that change the plan from one house to the next.

What does chimney masonry work include?

Chimney masonry work covers the brick or stone structure and everything built into it. Typical jobs include replacing damaged bricks, repointing worn mortar joints, rebuilding or sealing the crown, rebuilding the top of the chimney above the roof, repairing the firebox walls and resetting loose stone. It often includes small related tasks too, such as resetting counter flashing into fresh joints. Liners, caps and dampers are usually separate items, though many companies handle all of them. When you request quotes for “chimney masonry services”, ask each company to list which of these tasks it is pricing, so you can compare like with like.

Which parts of your chimney wear out over time?

A chimney’s parts fall into three groups: the weatherproofing outside, the flue liner inside and the working parts at the bottom. Weatherproofing means the cap, the crown, the flashing and the face of the bricks and mortar. The liner is the channel that handles heat and corrosive exhaust. Down at hearth level are the pieces people actually touch, such as the damper handle, the firebox walls and the ash dump door. On a prefab system, a framed chase and its sheet metal top replace the brick. When we diagnose a problem, we trace it to one of these groups first, because that decides what the fix looks like.

Should a chimney be repaired or rebuilt?

Most chimneys can be repaired, and a rebuild only makes sense when the structure itself is no longer sound. Repairs cover jobs like replacing damaged bricks, repointing worn mortar, building a new crown or resealing flashing. A partial or full rebuild comes into play when the chimney leans, when many bricks are crumbling at once, when mortar has failed deep inside the stack or when the top courses move by hand. The usual approach is to save whatever is solid and rebuild only the section that cannot be saved, which is often the part above the roofline.

When do chimney mortar joints need repointing?

A chimney needs tuckpointing when its mortar joints are cracked, recessed or crumbling. Look for joints that sit noticeably deeper than the brick face, sandy mortar that could be scratched out with a key, hairline cracks running along the joints and dark voids where mortar has fallen out. Grit collecting on the roof or in the gutter below the chimney is another clue. Binoculars from the ground or a photo taken from a safe window give you a good view without climbing. If more than a few scattered joints look this way, repointing is usually due.

What makes the bricks on your chimney flake or spall?

Spalling is almost always a water story, and the pattern of the damage tells us where the water comes from. Flaking concentrated near the top of the stack points to a cracked crown or a missing cap. Damage along one side often matches the direction of driving rain. Bricks that crumble right next to newer, gray, very hard mortar suggest a past repair used the wrong mix. A non-breathable sealer painted on years ago can also trap moisture behind the face. Replacing bricks without fixing the cause just starts the clock again, so we deal with both at once.

What are the steps of repointing a chimney?

Chimney tuckpointing is done in three stages: removing the damaged mortar, filling the joints with fresh mortar and finishing them to shed water. Old mortar is cut out with a grinder or chisel to an even depth, a common guideline being about twice the width of the joint, and the dust is cleaned away. New mortar, matched in strength and color to the original, is packed in layers so each one firms up before the next. Masons often mix small test batches and let them dry, because wet mortar looks darker. Finally, the joints are tooled to match the rest of the chimney.

How long does chimney tuckpointing last?

Repointing is not a recurring yearly job; a properly matched and packed joint can last a generation. When we see fresh tuckpointing fail within a few years, it is usually for one of three reasons: the new mortar was too hard or too soft for the brick, it was smeared over old mortar instead of packed into cleaned-out joints, or water from a cracked crown kept soaking the stack. We address all three on our jobs. After that, the chimney top and the weather-facing side are the spots to watch, and touching up a handful of joints there keeps the rest sound.

Should a masonry chimney get a water repellent after repairs?

It can be a sensible finishing step once the new mortar has cured. A breathable, vapor-permeable repellent made for masonry slows rain absorption while still letting moisture inside the brick escape. Avoid paint, film-forming sealers and products not meant for chimneys, because trapped moisture can make bricks spall. Repellents do not replace a sound crown, cap or flashing, and they wear off over time, so they are reapplied every few years. If you are considering one after “chimney masonry services” work, ask how long to wait before application and which type of product the company uses.

Which questions show whether a chimney company knows its work?

The questions that matter most are about cause, scope and surprises, and any capable chimney company can answer them in plain words. Cause: why is this happening, and how do you know? Scope: which parts are included, which materials, and is the chimney top part of the job? Surprises: what happens if rotten framing or a cracked flue tile turns up halfway through? It is also fair to ask who will be on your roof, how long new mortar needs before a fire and how the site will be left. We welcome these questions, because they lead to fewer misunderstandings later.

Put your chimney on the to-do list

It is easy to forget about the parts of a home you rarely see. Booking chimney masonry repair now means one less thing to wonder about later in the year. Request a quote from Chimney Sweep Burnaby and choose a visit time that fits around your week.