Flue liner replacement for Merrimac homes
Tell us what changed at the chimney. Our local pros in Merrimac check the flue and put the relining scope in writing.
- Licensed & insured
- Locally run
- Family owned and operated
- Same-day service available
Checked before a liner is ordered in Merrimac
Checked on the roof and at the appliance in Merrimac, then written into your free estimate.
- Listed liner product and diameter
- Top plate, liner cap and fastening
- Clearances to combustibles we could confirm
- Each flue in the chimney, listed separately
Chimney liner details that matter in Merrimac
Plain explanations of relining in Merrimac, from the crew that installs the liners.
Checking the chimney wall itself
Masonry chimney walls should be solid units, or hollow units grouted solid, at least 4 inches in nominal thickness under the residential code, and liner instructions repeat that expectation. A thinner wall, or one with voids, changes what the liner system needs.
We note the wall construction wherever it can be seen, at the top, at openings and in the attic, and explain any concern before relining is priced, not after the liner is on order. Where the wall cannot be seen, the estimate says so and explains how that uncertainty was handled.
When one appliance leaves a shared flue
Removing an appliance from a chimney can leave the remaining one on a flue sized for more than it produces. NFPA 211 treats the removal of a connected appliance as a reason for a closer inspection.
We size the flue against the appliance still connected and tell you whether relining is needed to bring it back into range. The unused opening left by the removed appliance also needs attention, and we note how it should be closed so the remaining flue works as intended.
Draft depends on height as well as size
A flue's draft depends on its height and temperature as well as its area, which is why the same liner size can behave differently in two chimneys. One manufacturer notes that its sizing formula can vary with the height of the chimney and other factors.
We weigh those factors rather than applying one number to every job, and the estimate explains which ones shaped the proposal for your chimney.
Replacing an older metal liner
An older metal liner can corrode, separate at its joints or collapse, particularly if it was never suited to the appliance. Replacing it starts with understanding why it failed, so the new system avoids the same cause.
We remove the old liner, check the flue behind it and size the replacement to the appliance you use now. The old liner goes with us, and its removal is shown as its own line on the estimate.
Other work in Merrimac
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Learn more about chimney liner installation and reliningMerrimac services
Related chimney liner work
Liner questions we hear in Merrimac
Straight answers on relining from our Merrimac team. Call if yours is not here.
Do you reline chimneys that vent a furnace or water heater?
Yes, where the chimney is masonry and the appliance instructions allow a lined masonry chimney. Those flues are sized by the fuel gas rules and the appliance manual, and we show that reference in the estimate.
What happens to my fireplace during relining?
We protect the hearth and nearby floor, keep the opening covered while we work above and clean up afterwards. The fireplace cannot be used again until the installation is finished and checked.
Request your free estimate
Share the job details and arrange a free inspection with our local team.
- Free inspection
- No hidden fees
- Family owned and operated
Need an answer now? Call (352) 675-6376
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