Liner & Firebox · Anchor Component

Cast-In-Place Liner Restoration (GoldenFlue / Supaflu-Style)

A cementitious cast-in-place system, poured with a form or bladder and mortar, that rebuilds a deteriorated flue from the inside — restoring a smooth, insulated, code-rated passage within the existing masonry shell. This is our answer for a historic or oversized flue where a stainless liner can't be sized to fit. Because the outcome depends entirely on execution, we treat this as an installed system, never as materials sold on their own.

Specification

What the listing decides

Method: Cast-in-place (cementitious)
Store fit: Install-only, part of the reline job

How this part is bought

The part follows the finding

No part in this store is a loose transaction. This one links back to the graded inspection that surfaces the need, and across to the install service it belongs to — both performed by the same trained crew.

Upstream

Chimney Inspection

The graded inspection that documents the need for this part before it ships.

Start here

Installed by

Chimney Liner

The install service this component attaches to, fitted to its listing by the same crew.

See the work

Every store quote includes

A fit check — flue size, alloy, venting, and clearances verified against your inspection
Written installed pricing before anything is ordered
Installation to the component's listing by trained technicians
Documentation that closes the finding — so the warranty, your insurer, and the next inspector all see a job done right

Liner & Firebox

Request a quote

No price is listed — that’s the standard, not a sticker. Installed pricing depends on your flue, alloy, venting, and access, and we confirm it in writing after a fit check. No payment is taken online.

Include professional installationFitted to its listing by the trained crew as Chimney Liner. Leave it on — most parts here are a safety system, not a box you fit on a Saturday.

Pick a preferred window next — we confirm it by phone

(214) 444-8103

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More from the Liner aisle

Stainless Steel Flexible Liner Kit — Full (316Ti / 304)

A complete 316Ti or 304 stainless flexible liner kit — cap, top plate, connector, and clamps included — sized to reline a masonry flue for wood, gas, or oil appliances. The alloy choice is the real decision here: 316Ti for wood-burning and high-heat use, 304 where the fuel type allows it, and we specify which your appliance actually requires rather than defaulting to the cheaper grade. We run a Level 2 camera inspection first to confirm sizing, then install and insulate — supply-and-install only, since a liner that's kinked or under-clamped from a DIY pull is a flue-fire risk we won't put our name behind.

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Liner Insulation Blanket Wrap Kit (¼" / ½", UL 1777)

A ceramic/mineral insulation blanket with mesh and bands, wrapped around a stainless liner to meet UL 1777 clearance and draft requirements. We spec this as standard on every reline, not an upsell: an insulated liner runs hotter, cuts creosote buildup, and qualifies for the reduced clearance the listing allows. Skipping it to shave cost is the shortcut that brings the draft complaint back to us.

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Refractory Firebox Panel Set (Prefab / Masonry Replacement)

Pre-cast, OEM-matched refractory panels that replace cracked firebox walls and floors in factory-built units and restore the firebox to its rated condition. A cracked refractory panel is a documented safety finding, not a cosmetic flaw — once it cracks through, the steel shell behind it is directly exposed to flame. We match the panel to your specific firebox model, because a generic panel that's merely close in size voids the listing.

On the aisleQuote

Everything in Liner & Firebox

10+

Years

NFPA 211

Standard

CSIA

Certified

< 2hr

Response

Ready when you are

Talk to a CSIA-certified expert today.

Free written quote. Same-week scheduling. 24/7 emergency response when you need it.

Book Free Inspection (214) 444-8103

Licensed & Insured Same-Week Scheduling Written Quote, Always

Emergency

24/7 Response

Active leak, animal in flue, post-fire damage, or smoke event? Real humans on the line 7 AM to 12 AM every day — replies in under 2 minutes. Tech dispatch within 2 hours during business hours, subject to crew availability after-hours.

Emergency line