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Installation · From $475

Top-Sealing Damper Installation

A throat damper is a cast-iron plate resting on a cast-iron seat; it never really seals, which is why an idle fireplace still bleeds conditioned air all summer. A top-sealing damper mounts at the crown instead and closes on a rubber gasket, sealing the flue like a lid at the top rather than a loose plate at the bottom. A stainless cable runs down to a handle at the firebox so you still control it from inside, and while it is shut it doubles as a rain and animal cap. Price follows flue size and shape plus roof access. It pairs naturally with the insulation and duct work we already do, so the whole house holds its temperature better.

Duration
1–2 hours
Warranty
1-year workmanship
Standards
CSIA techs · NFPA 211 · IRC
Human reply
< 2 min
What is it

What is top-sealing damper installation?

A throat damper is a cast-iron plate resting on a cast-iron seat; it never really seals, which is why an idle fireplace still bleeds conditioned air all summer. A top-sealing damper mounts at the crown instead and closes on a rubber gasket, sealing the flue like a lid at the top rather than a loose plate at the bottom. A stainless cable runs down to a handle at the firebox so you still control it from inside, and while it is shut it doubles as a rain and animal cap. Price follows flue size and shape plus roof access. It pairs naturally with the insulation and duct work we already do, so the whole house holds its temperature better.

Every top-sealing damper installation includes:

  • Damper sized to your flue tile and set on the crown
  • Silicone rubber gasket seal — a real close, not metal on metal
  • Stainless cable run to a firebox handle you operate from inside
  • Doubles as rain and animal protection while closed
  • Open, close, and draft verified with a live fire check

Scoped from a graded inspection

With our crew, a top-sealing damper installation is never guesswork. We scope every job from a graded, photographed inspection first — the NFPA 211 level the evidence calls for — so the work is matched to what your flue and masonry actually need, with the report to prove it. The documented inspection is the record the top-sealing damper installation is built on.

Chimney inspection
Why choose us

Why DFW homeowners pick Texas Service for top-sealing damper installation.

We've worked on 1,000+ DFW homes over 10+ years. Every job — small sweep or full rebuild — runs the same way: certified technicians, written quotes, photo reports, warranty in writing.

10+
Years experience
CSIA
Certified techs
23
Metros covered

CSIA-certified inspectors only

Written quote before any work begins

1-year workmanship warranty

Insurance-grade photo documentation

Who we are

Texas Service Experts. 10+ years on DFW chimneys.

Family-owned, CSIA-certified, NFPA 211–compliant. We're the team you call when you want it done right the first time — no rotating subcontractors, no upsell pressure, no surprises. Same techs, same trucks, same standard.

CSIA Certified
Chimney Safety Institute of America
NFPA 211 Compliant
Code-compliant on every job
Owner on every job
Personal accountability, every time
1-year workmanship warranty
In writing, every job
Texas Service Experts technicians on site
Texas Service
DFW Metroplex · CSIA-Certified
NFPA 211
Code compliant
FAQ

Common questions about top-sealing damper installation.

How often should I have my chimney swept?

The NFPA recommends a Level 1 inspection every year, with a sweep once buildup reaches 1/8" of creosote — for a wood fireplace you actually use, that's about once a heating season. The neighborly part: since we're already on the roof, the same crew checks your dryer vent and caps the visit with a quick whole-home safety look, so one appointment covers what would otherwise be three.

Are your technicians certified?

Yes — our inspectors hold current CSIA (Chimney Safety Institute of America) certifications, verifiable in the CSIA member directory at csia.org, and we have NFI specialists for fireplace work. The same trained crew handles your chimney, fireplace, dryer-vent and air-duct needs, so you're not juggling four different contractors for one house.

Do you offer emergency service?

Yes — 24/7 response (subject to crew availability) for active leaks, an animal trapped in the flue, post-fire damage, and storm damage, same-day in most cases. One call reaches one crew that can handle whatever the situation turns out to need, instead of bouncing you between specialists while the water's still coming in.

Do you provide written quotes before work begins?

Always — a written quote before we lift a tool, with photos of what we found, so you see exactly what you're approving. If the same visit turns up something in the dryer vent or ducts, it goes on one itemized quote and one invoice rather than a string of separate trips.

What's the Whole-Home Care Plan membership?

The Whole-Home Care Plan is our annual maintenance plan at $19.99/month ($240/year): a Level 1 inspection and sweep ($248 value), priority scheduling, 10% off all repairs, and emergency-response priority. Because one crew covers chimney, fireplace, dryer-vent and ducts, the plan keeps the whole house on a single schedule instead of a calendar full of separate service calls. Cancel anytime, no contract.

Last reviewed:

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.

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
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