A Hearthstone company - serving Silver Spring, MD

Gelco Chimney Cleaning & Sweep Nationwide

Every visit starts with

Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed

Worth knowing

Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.

Styles & brands we work with

Sweep & inspection
Sweep & inspection
Caps & crowns
Caps & crowns
Flue relining
Flue relining
Masonry repair
Masonry repair
Gas fireplace service
Gas fireplace service

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Gelco Chimney Cleaning & Sweep in Silver Spring: What to Know First

We provide independent Gelco chimney cleaning and sweep service throughout Silver Spring, with most Level 1 and Level 2 inspections completed in a single visit and upfront pricing agreed before we start. A standard Gelco sweep runs $189-$289, while a Level 2 camera inspection with photo report runs $289-$419 depending on flue access and height. We don’t sell what your chimney doesn’t need.

Call (301) 479-9806

This page is for Gelco owners in Silver Spring neighborhoods like Woodside Park, Forest Glen, and Four Corners who want their flue swept, inspected, and documented by technicians who know the difference between a Gelco Multi-Flue cap and a standard model. Call (301) 479-9806 - a live person answers, 24 hours a day.

How Gelco Products Fail - and How We Fix Them

  • Gelco Model C chimney caps: The mesh screen on these caps sits tight to the flue tile and collects creosote faster than wider-profile designs, especially in Silver Spring’s heavy oak and maple burn zones. During a sweep, we remove the cap, document screen corrosion with photos, and either deep-clean the original or recommend a Gelco replacement with wider mesh spacing if draw is restricted.
  • Gelco pre-fab chase covers: The factory sealant bead along the flue collar hardens after 8-12 years of Montgomery County freeze-thaw cycles, letting water track behind the cover and into the chase. We spot this during Level 2 inspection, reseal with high-temp silicone rated for Gelco metal specs, or replace the chase cover if the flange is pitted.
  • Gelco stainless single-flue caps on older brick colonials: The mounting brackets are designed for standard flue dimensions, but many Silver Spring homes built 1940-1970 have oversize terra-cotta flue tiles that leave a gap. We fabricate a custom-mount solution or step up to a Gelco Multi-Flue cap that straddles the full chimney crown, eliminating the wobble that lets squirrels and rain in.
  • Gelco Multi-Flue caps with internal wind directional: The rotating hood seizes when creosote cakes the pivot bearing, common in homes that burn unseasoned wood from local tree services. We disassemble the hood during sweep service, clean the bearing race, and lubricate with graphite - or replace the directional assembly if the pivot is scored.
  • Gelco spark arrestor inserts: These insert into the cap body and are often omitted during amateur sweeps because they’re a tight friction fit. We remove, inspect, and replace them every time; a missing arrestor on a wood-burning system in Montgomery County violates the spirit of NFPA 211 even if not always enforced.

Our Gelco Chimney Cleaning & Sweep Process

  1. 1
    Call intake: A live person answers, notes your Gelco cap model if you know it, and books a window. We confirm our $89 Seasonal Tune-Up or standard sweep rate upfront.
  2. 2
    Arrival and setup: Our technician arrives in uniform, lays protective sheeting from the truck to your hearth, and verifies the Gelco product line against our reference photos. No guesswork on parts compatibility.
  3. 3
    Level 1 or Level 2 inspection: We scope the flue with a camera, photograph every Gelco component, and flag creosote thickness, tile cracks, or cap deterioration. You see the photos before we quote any additional work.
  4. 4
    Sweep and component service: Rotary brushing for creosote and soot removal, hand-cleaning of the Gelco cap and arrestor, and assessment of whether OEM Gelco parts or quality aftermarket equivalents make sense for your budget and warranty status.
  5. 5
    Testing and documentation: We run a draw test, verify cap reinstallation torque to Gelco spec, and email you a photo report with our plain-English verdict. The 90-Day Done Right Promise attaches automatically - in writing, no arguing.
  6. 6
    Cleanup and walkthrough: HEPA vacuuming of the firebox and surrounding area, then we explain what we found, what we did, and what can wait until next season. Tell me what the chimney needs. Then we fix that. Nothing more, nothing less.

What Gelco Chimney Cleaning & Sweep Costs in Silver Spring

Service Typical Range What Moves the Price
Level 1 sweep with Gelco cap cleaning $189 - $249 Flue height, creosote thickness, cap removal difficulty
Level 2 camera inspection + sweep $289 - $419 Roof pitch, chase access, number of appliances
Gelco cap removal and deep service $75 - $125 Corrosion level, hardware replacement
Gelco Multi-Flue cap replacement $485 - $795 Flue count, screen material, wind directional option
Chase cover reseal or replacement $195 - $650 Metal gauge, flue collar condition

Every estimate is free and itemized. We apply our standing $50 off any repair over $250, and Silver Spring seniors and veterans receive 5% off automatically. Call (301) 479-9806 for an exact quote - estimates are free.

Why Silver Spring Homeowners Call Hearthstone Chimney Co. for Gelco Work

We’ve swept chimneys in Silver Spring long enough to know which houses on Sligo Avenue have the original 1950s flue tiles and which new construction off New Hampshire Avenue shipped with Gelco caps from the builder. Russell Haines and our crew carry replacement Gelco components on the truck, plus DuraFlex liner sections and HeatShield refractory mortar for the jobs that go beyond sweep and inspection.

The 90-Day Done Right Promise means if the draw isn’t right or the cap leaks, we come back. No paperwork to dig up, no arguing. Photos you can see, a plain-English verdict. We’ll be there when we say. And a square deal: no surprises on the bill.

FAQs

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