The work
What liner installation actually involves
Why flues get lined, and what goes in
A liner gives the flue a continuous, correctly sized path for combustion gases. Old chimneys were often built without one, or with clay tiles that have cracked, and fitting a new appliance nearly always means a liner because the appliance needs a specific diameter.
The usual answer is a flexible stainless steel liner dropped down the stack, with the annular space insulated. Rigid systems and cast-in-place liners exist for particular situations.
Stainless liners come in different grades, and the right grade depends on what you burn. Wood, multi-fuel and condensing gas appliances all attack the steel differently, and the wrong grade fails early.
Sizing
An oversized flue draws worse than a correct one
It seems as though a bigger flue should draw better. For a modern appliance the opposite is usually true.
Gases in an oversized flue cool as they rise, slow down, and condense on the way, which is both poor draught and the fastest route to creosote or acidic condensate.
The liner should be sized to the appliance manufacturer's specification rather than to the opening in the chimney, and a fitter who asks what appliance is going on the end before quoting is asking the right question.
Failure points
Two things that go wrong
No insulation around the liner
“Is the liner being insulated, and with what?”
The gap between the liner and the old flue should be insulated, with a wrap or a pour. Leaving it empty lets the liner run cold, which hurts draught and encourages condensation, and it is the easiest thing to omit from a quote without it being visible afterwards.
Warranty conditional on servicing
“What does the liner warranty require me to do each year to keep it valid?”
Liner warranties are often long and nearly always conditional on annual sweeping by a qualified sweep, with records. Plenty of people discover the condition when they try to claim, having swept it themselves or not at all.
Before you book liner installation
How we rank →Six checks, in the order they save you the most. None of them takes longer than a phone call, and the first one is the reason two quotes for the same job can be a thousand apart.
Where we cover it
Chimney Services shortlists by city
Every shortlist →A company offering liner installation appears in the published list for its own market. Each one names the editor who built it and the date they last checked it.
On the lists
Companies that list liner installation
Drawn from the profiles where this service is recorded, not from what a company advertises.
A1 Chimney
Dallas, TX
Lowes Chimney Sweep
Dallas, TX
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Common questions about liner installation
Who handles liner installation?
Liner installation is handled by chimney companies. Not every company in the trade takes this work on, so each ranking lists the services a company genuinely performs rather than everything it advertises.
What should I ask before booking liner installation?
Ask what the quote includes and excludes, who is doing the work, whether a permit is needed and who is pulling it, and what the workmanship warranty covers. Get the answers in writing before anyone starts.
How do I compare quotes for this?
Put them on one sheet line by line. Differences in price almost always turn out to be differences in scope, material grade or warranty length rather than margin.
Is liner installation priced separately from the rest of the job?
Usually it is a line inside a larger quote rather than its own invoice, which is exactly why the exclusions matter. Ask for it itemised so you can compare that line between companies instead of comparing two totals.
For chimney
Do you offer liner installation?
Claim your profile so the services you actually perform are the ones recorded here, alongside your licence, hours and coverage. Neither claiming nor advertising buys a ranked position.