Throat damper replacement in San Jose

Cooled air escaping up the flue in San Jose? We get the plate seating tight again, backed by a 100% satisfaction guarantee.

Fully licensed and insured
Locally owned
Family owned and operated
Same-day service

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Get a quote for chimney and fireplace repair and installation in Jacksonville.

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Call our chimney crew

(904) 920-5495 Free Inspection

Damper specialists who find the failed part first

Locally owned in Jacksonville
Family owned and operated
100% satisfaction guaranteed
Free inspection and estimate
Same-day service available
10% off any service

A cap goes on the estimate when rain is what rusted the damper in the first place.

Free inspection and estimateYour San Jose damper is run through its full travel and checked with a light at no charge.
100% satisfaction guaranteedIf the repaired damper does not open fully and close flat, we come back and make it right.
Family owned and operatedA family business does the diagnosis and the repair, so the person who quoted it answers for it.

Call (904) 920-5495 Free Inspection

Measuring for a replacement plate

A replacement plate is not ordered by guesswork. The frame opening, the pivot style, the position of the handle lug and the depth of the throat all decide whether a plate will fit and swing freely.

We take those measurements on the inspection, and they go on the estimate with the part. For some older frames no matching plate is made any more, and then the choice is a new frame or a top seal. You hear that before anything is ordered. Want a damper plate measured at your house in San Jose? Call (904) 920-5495 and book a free visit from our damper team.

San Jose is an inland community. San Jose is one of the named neighborhoods of Jacksonville.

What a damper visit covers in San Jose

Warped or holed plates replaced to fit the frame
Rust scale cleared from the seat the plate closes on
Cracked or rusted-out frames cut out and replaced
Full travel and seal tested with a light

Call (904) 920-5495 Free Inspection

How chimney damper replacement runs

Handle and plate tested
With the fireplace cold, the control is worked through its travel and the plate checked from below with a light.
Failed part named
Pivots, plate, frame or control, the part that failed is written down with the repair options and prices.
Freed, rehung or replaced
Sound parts are cleaned and freed, a plate is matched to its frame, or a new damper is set at code height.
Travel and seal confirmed
The plate must open fully and close flat under the light before the job is done.

Checking the damper before the season in San Jose

Before the first cool evening, open and close the damper by hand and shine a light up at the plate. Rust flakes, a stiff handle or daylight past a closed plate are the signs to watch.

Any of those in San Jose is reason enough for a free damper check before the first fire.

10% off any service booked within 72 hours of inspection

Freed, rehung or replaced, a damper job in San Jose carries the discount.

Call (904) 920-5495 Free Inspection

Inside a rotary damper control

A rotary control runs a crank through the fireplace face to a gear box or threaded rod mounted at the damper. Turning the crank moves the plate in small steps, which is why these controls can hold any position in between fully open and closed.

They fail at the gear teeth, at the coupling where the crank meets the drive, and at the rod where rust has seized it. Replacement assemblies are sized to the frame, so we measure the frame width, the crank's exit point in the fireplace face and the plate's swing before ordering. Where no matching assembly is made, a new damper with its own control is the fallback.

Dampers behind a wood-burning insert

A wood-burning insert with a liner running up the flue passes through the throat where the damper sits. Insert manuals deal with that directly. Some tell the installer to remove the damper or lock it fully open, so the liner has room and the plate cannot close on it.

So a damper that looks missing or fixed open behind an insert may be exactly what the insert's instructions required. We check the insert's manual before calling it a fault. If the insert is being taken out and the fireplace will burn open fires again, the damper is then restored or replaced so it can close between fires.

What we check before calling the damper done

Four things have to be true before a damper repair counts as finished. The handle or crank moves the plate through its full travel without force. The plate reaches its fully open position and stays there. It closes flat on its seat with no gap visible under a light. And the handle positions are clear to whoever lights the next fire.

We run those checks with you watching, before we pack up. If any one of them fails, the job is not finished, and we say what is still needed. The result is written on the invoice, with the parts used, so the next inspection starts from a known condition.

What we measure on dampers in San Jose

Damper type identified: throat damper, top seal or factory-built unit
Frame replacement scope: firebrick disturbed and refractory mortar used
Rain entry above the damper, with a flue cap priced separately
Old parts removed and the firebox cleaned before we leave

Before a damper part is ordered

Why is there a clamp on my damper?

It is probably there for a vented decorative gas appliance, whose instructions require the damper to stay partly open. We leave it while that appliance is installed and remove it only when the fireplace returns to wood.

Does a repaired throat damper seal like a top damper?

Not quite. A throat damper closes metal on metal, while many top dampers close on a gasket. A repaired throat damper still stops the steady draw of an open flue, and we price both when both would work.