Advice
Written for somebody deciding whether to call, not for a search engine. Several of these end with a reason not to book anything, which is the point of writing them.

Which flue is yours in a two-family house
One chimney, several flues, and a century of appliances swapped in and out. In a divided house the first useful question is not whether the chimney is dirty. It is which part of it belongs to you.
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When duct cleaning earns its money, and when it does not
This is a service we provide, so treat what follows accordingly — and then note that most of it is about the circumstances in which you should not book it.
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What a hundred winters do to a chimney crown
Water gets into a hairline in November and freezes in January. Do that ninety times and the slab on top of your chimney is no longer shedding water — it is routing it into the middle of the stack.
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The signs a dryer vent is blocked, in the order they appear
A dryer that needs two cycles is not a dryer that is wearing out. It is a dryer working against a duct that has narrowed, and it has been telling you so for a while.
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What an oil-to-gas conversion does to your chimney
The boiler was replaced. The chimney was not. That single mismatch is the most common finding in pre-war Essex County housing, and it works on the masonry from the inside for years before anybody notices.
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Level 1 or Level 2 — which chimney inspection do you need
There are two inspections a homeowner will ever be offered, they cost different amounts, and the wrong one answers a question you did not ask. The choice is simpler than it sounds.
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How often a chimney really needs sweeping
Every answer to this question that starts with a number is guessing. The interval is set by how the fire is run, and two houses on the same street can be three years apart.
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The three stages of creosote, and which one you have
Most people think creosote is a quantity. It is really a state of matter, and the state you end up with is decided by how cold the smoke gets on the way out of your house.
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Still not sure which one yours is?
Describe what you are actually seeing and we will tell you which of these it is — including when the answer is that it can wait until spring.
