A damper that won't open, won't close, or won't seal is costing you money every day it stays broken. Our certified technicians diagnose the cause, then repair or replace it so your fireplace drafts properly and your heated air stops escaping up the flue.
A broken damper is one of those problems homeowners live with for years without realizing what it's costing them. An open or poorly sealing damper is a hole in your house, roughly the equivalent of leaving a window open all winter, and the heated or cooled air you paid for goes straight up the flue.
Why dampers fail in North Texas: our humidity swings and the moisture that gets past a worn chimney cap corrode cast-iron throat dampers until the plate warps, the hinge seizes, or the handle snaps off. Add creosote buildup baked onto the frame, and a damper that worked fine three seasons ago won't budge.
We repair what can be repaired and replace what can't. Sometimes a seized damper just needs cleaning, freeing, and a new handle. Sometimes the frame is rusted through and a proper inspection shows a top-sealing damper is the better long-term fix. We'll tell you which one you're dealing with.
Stuck damper right now? Call (214) 225-8874 and we'll get it working.
Damper problems get misdiagnosed constantly. A fireplace that smokes might be a stuck damper, or it might be a flue blockage or an undersized chimney. We find out which before touching anything:
Here's what's included when we come out for a damper issue, at the price you were quoted:
Any one of these is worth a look. A damper is a small component with an outsized effect on both safety and your energy bill. Get it checked, call (214) 225-8874.
Most damper calls are solved on the first visit. The key is knowing whether you are looking at a serviceable damper or a failed one before quoting anything. Here's how our certified DFW technicians work through it:
We operate the damper through its full range to see exactly how it is failing, seized, warped, broken handle, or bad seal.
We check the plate and frame for corrosion and warping to determine whether the assembly can be saved.
We clear and inspect around the damper, since creosote and debris are a frequent cause of a damper that will not move.
You get clear photos of the damper condition so the repair-or-replace call is obvious, not a matter of trust.
We quote freeing and repairing the existing damper, and if needed, a throat or top-sealing replacement, with the tradeoffs explained.
We free and service the damper or install the new unit, seal it correctly, and confirm it opens, closes, and latches properly.
We show you how to work it, confirm the seal, clean up completely, and back the work with our written guarantee.
Stop paying to heat the sky, same day damper service across DFW, 7 days a week.
(214) 225-8874Damper work raises a few predictable questions. Here are the honest answers:
Often it can be repaired. A large share of "broken" dampers are simply seized with rust and creosote, and they free up with proper cleaning and servicing. Replacement is only necessary when the plate or frame is corroded through or warped past sealing. We quote the repair first whenever it's viable.
Freeing and servicing an existing damper is one of the least expensive chimney repairs there is. A full replacement costs more, and a top-sealing damper more still, because it includes the unit and rooftop installation. We diagnose first, then quote. Request your Free Online Quote.
A throat damper is the traditional cast-iron plate just above the firebox. A top-sealing damper mounts at the top of the flue with a rubber gasket and seals far better, which is why we often recommend it when an old throat damper has failed completely.
Both, depending on how it failed. Stuck closed or partially closed is a genuine safety problem, it pushes smoke and carbon monoxide into the room. Stuck open is mainly an energy loss issue, though it also lets rain and animals contribute to water damage.
Servicing a seized damper is usually done in a single visit. A replacement is typically same-visit as well, once we've confirmed the sizing. Get on the schedule here.
">Get started here.The person working on your damper is a trained, background-checked, fully insured chimney professional. Damper work means reaching into the throat of your chimney and handling soot-covered cast iron, it's not a job for someone learning on your fireplace.
Plenty of companies quote a replacement damper on sight because it's the bigger ticket. We service and free the existing damper whenever it's structurally sound, and we'll show you the photos that justify either call.
A damper that seizes repeatedly usually has a cause higher up, a missing chimney cap letting rain in, or a cracked crown feeding moisture down the flue. Fixing the damper without fixing the source just buys you a year.
If a damper we serviced or installed doesn't operate properly, we come back and fix it free. That's in writing.
Seized dampers freed, rusted assemblies replaced, top-sealing dampers installed, browse real before-and-after photos from chimney projects across Dallas Fort Worth.
View the Before & After GalleryDampers fail in a handful of predictable ways, and each one points to a different fix. Here's what we find most often on DFW fireplaces:
Damper trouble rarely travels alone. If moisture caused it, the source is usually higher up, see our chimney repair overview for how the whole system connects, or start with a chimney inspection.
From our home base in Plano, our damper repair crews cover 98 cities throughout the DFW metroplex, including:
+ 78 more DFW cities! See our full service area list, or call (214) 225-8874, chances are we serve your neighborhood.
"Very pleased with the professionalism and promptness of service. The chimney sweep was done quickly and efficiently at significantly less cost than the first quote I got from another company. Happy to recommend Lowes Chimney Sweep to anyone in Plano!"
"Outstanding chimney sweep service from start to finish. They were punctual, courteous, and left our chimney spotless with no mess in our home. I won't use anyone else for chimney services in Dallas TX!"
More reviews from homeowners across the metroplex are on our reviews section, or learn more about our team before you book.
Servicing a seized damper is one of the more affordable chimney repairs, while a full replacement costs more because it includes the unit itself. A top-sealing damper is the highest of the three since it includes rooftop installation. We diagnose before quoting, so you get a real number. Request your Free Online Quote.
In most cases, yes. Many dampers seize from rust and creosote rather than actual structural failure, and they can be freed, cleaned, and serviced. Replacement is only needed when the plate is warped past sealing or the frame has corroded through.
A top-sealing damper mounts at the top of the flue and seals with a rubber gasket, which stops far more air loss than a traditional cast-iron throat damper. It also keeps out rain and animals. It costs more up front and usually pays back through lower heating and cooling bills.
Almost always rust, creosote buildup around the frame, or a broken handle linkage. Less often the plate has warped from heat. A quick inspection tells us which, and the first two are usually repairable.
It can be. A damper stuck closed or partly closed forces smoke and carbon monoxide back into the room, which is a genuine hazard. A damper stuck open is not an immediate danger but wastes significant energy and lets water in.
A damper that won't seal is comparable to leaving a window open year round. You're paying to heat or cool air that goes straight up the flue, which is why homeowners often notice the difference on their bill after a repair.
We'd steer you away from it. Damper work involves reaching into the smoke chamber, correct sizing to the flue, and a proper seal, and a badly fitted damper creates draft and safety problems that cost more to correct than the original job.
Because water is getting in from above. The usual culprits are a missing or damaged chimney cap or a cracked crown. Fixing the damper without addressing the source just repeats the problem.
Yes. Every damper repair and installation is backed by our written guarantee. If it doesn't operate or seal correctly, we return and correct it at no charge.
Usually same or next day. We run crews across all 98 DFW cities seven days a week, and damper problems that are pushing smoke into the house get priority. Call (214) 225-8874.
A damper problem is often a symptom of something else in the system. Because our team handles the whole chimney, we can trace it to the source and fix that too:
Want to understand the system before you call? Our guides cover warning signs your chimney needs repair, why chimneys leak, and what an inspection includes. You can also browse the before-and-after gallery, see every DFW city we serve, or request your Free Online Quote.
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(214) 225-8874📍 1008 Ridgefield Dr, Plano TX 75075 | 🕗 Open 7 days · 8AM-8PM
It's the valve between your firebox and the outside. Open, it lets smoke and combustion gases escape. Closed, it seals your heated or cooled air inside the house. When it stops doing either job properly, you get smoke in the room or money out the flue.
Moisture is the driver. Humid air, rain past a worn cap, and condensation inside the flue rust cast iron steadily. Combine that with creosote baking onto the frame each burn season, and the plate effectively glues itself shut.
If the plate and frame are structurally sound, servicing is the right call and it costs a fraction of replacement. If the frame is corroded through or the plate is warped so it can't seal, replacing is the honest answer, and we'll show you why in photos.
Throat dampers sit above the firebox and are what most DFW homes have. Top-sealing dampers mount at the flue top and seal with a gasket, blocking far more air loss and keeping rain and animals out. When an old throat damper has failed outright, the top-sealing option often makes better long-term sense.
A damper that won't seal leaks conditioned air continuously. Homeowners often tell us they noticed the difference on the next bill, particularly in DFW where both the heating and cooling seasons are demanding.
If we free a damper but ignore the water reaching it, you'll call us again in a year. That's why we always check the cap, crown, and flue above it, and tell you what's feeding the problem.
