Gas fireplace service
Sweep & inspection
Caps & crowns
Flue relining
Masonry repairLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Why Longmont Homeowners Choose HeatShield Chimney Cleaning
We provide independent HeatShield chimney cleaning and service in Longmont, and what sets our HeatShield work apart is focus: we know this resurfacing system specifically, not just chimney sweeping in general. HeatShield is a flue resurfacing product, and it fails differently from clay tile, which is exactly where a generalist sweep tends to miss the diagnosis. We’re an independent service provider, not affiliated with or authorized by HeatShield, so our advice stays with the liner in front of us. Our technicians have up to 9 years of experience. Call (855) 360-7080.
Why Trust Chimney Sweep Longmont for Your HeatShield Chimney Cleaning?
HeatShield is a specialized flue resurfacing system, not a general-purpose product. Its installation tolerances, moisture behavior, and surface curing requirements are specific, and a sweep who works with it regularly reads those signs faster than someone who mostly brushes clay tile. Our technicians have hands-on experience with both cast-in-place and wrap systems, and we diagnose the problems that belong to these liners specifically.
We clean and repair HeatShield equipment using quality parts that fit it, with the right materials matched to the surface. Service is warranty-safe: we don’t use aggressive rotary tooling that scores a finished liner surface, and we don’t apply aftermarket mixes to a HeatShield system where they don’t belong. We’re an independent service provider, not a HeatShield dealer, and we don’t claim manufacturer authorization. When a liner is beyond what resurfacing can honestly fix, we say so. We name the brands we install because you deserve to know what’s going into your home.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common HeatShield Chimney Cleaning Problems We Fix in Longmont
HeatShield systems fail in ways that a clay-tile checklist won’t catch. Here’s what we look for.
- Surface cracking and spalling of the cast-in-place liner. Thermal cycling is the usual cause. A flue that heats and cools hard through St. Vrain Valley winters develops fine surface fissures, and those fissures give creosote a place to take hold. What looks like a hairline mark on camera is often the start of a much larger problem.
- Debonding or separation from the original flue tile. When resurfacing material pulls away from the tile behind it, the cause is usually inadequate surface preparation before the original application or moisture getting behind the layer. Separation shows up as a hollow sound and gap at the seam, and it defeats the whole purpose of the lining.
- Deterioration of the insulation wrap on stainless liners. HeatShield insulation wrap can break down or tear, and an uninsulated section of stainless liner loses heat. That cooler section becomes a creosote collection point, and in Longmont’s inversion-prone winters, that buildup grows faster than on the insulated run above it.
- Failed crown repair coating. Crown coatings applied over a dirty or damp crown will crack and peel. Once that seal breaks, water tracks into the masonry, and the freeze-thaw swings along the Front Range turn a small crack into real movement.
- Creosote packing into rough or damaged surfaces. A compromised HeatShield surface isn’t smooth anymore, and rough areas trap creosote that ordinary brushing can’t fully clear. When draft suffers, this is often why.
HeatShield Parts & Our Repair-vs-Replace Approach
For HeatShield systems we use genuine HeatShield repair materials, including resurfacing mix, insulation wrap, and crown sealant, because the curing and adhesion properties are matched to the system. Aftermarket substitutes may not bond the same way, and on this kind of product, bonding is the whole job. We don’t stock or order OEM parts, and we don’t sell HeatShield products; we use the right materials to repair and install what’s already in your chimney.
Our decision between repair and replacement is straightforward. If the liner holds together and the failure is localized, targeted resurfacing or crown repair can restore it. If separation runs the length of the flue, or the wrap is gone across a large section, we’ll tell you plainly that a reline is the honest answer. Patching a failing liner only delays the problem.
Call (855) 360-7080 for a free estimate on your HeatShield chimney in Longmont.
Our HeatShield Service Process – Step by Step
- 1
Diagnosis. We start with a Level 2 inspection that runs a camera the full length of the flue, checking the HeatShield surface for cracking, separation, and creosote in rough areas.
- 2
Cleaning or repair planning. We remove creosote with tools matched to the liner so the HeatShield finish isn’t scored, then map out whether the failure needs resurfacing, crown repair, or a reline.
- 3
Repair or install. We apply HeatShield resurfacing mix or crown sealant with proper surface prep, or set insulation wrap on the stainless liner, using genuine materials.
- 4
Test. We check draft and verify the coated surface and seams before we call it done.
- 5
Warranty review. We walk you through what was done and how to keep the repair warranty-safe.
See the difference
Before
After
Before
After
Before
AfterHeatShield Products We Service & Install in Longmont
We work with the HeatShield Resurfacing System, the cast-in-place liner that renews an aging flue without tearing out the original tile. We service and install HeatShield Insulation Wrap for stainless liners, which keeps the flue warm and cuts creosote in cool sections. We also handle HeatShield Crown Repair and Sealant, which seals the top of the chimney against water, and HeatShield Firebox and Smoke Chamber Repair, which restores the surfaces just behind the damper where smoke turns. Each of these works on a different part of the flue, and each carries its own tolerances.
We Also Service These Brands
We’re not tied to one product line. Alongside our HeatShield work in Longmont, we install DuraFlex flexible liners for compromised flues and work with Gelco components, so a repair recommendation follows the condition of your chimney rather than whatever a single brand happens to make. You see the parts going in.
FAQs – HeatShield Chimney Cleaning Service in Longmont
No. We are an independent HeatShield service provider, not affiliated with or authorized by HeatShield. We’re not a dealer and not factory-certified. What we offer is practical, hands-on experience working with the system.
Yes. We use genuine HeatShield repair materials so the repair holds to the system’s curing and adhesion properties. We don’t stock OEM parts or sell HeatShield products.
Cleaning and a Level 2 inspection are usually done in a single visit. Resurfacing or crown repair depends on the flue’s size and condition and is scheduled as its own job.
We service the HeatShield Resurfacing System, Insulation Wrap, Crown Repair and Sealant, and Firebox and Smoke Chamber Repair. Each works on a different part of the chimney and gets its own approach.
Not if it’s done correctly. Using genuine materials and avoiding aggressive tooling keeps the system intact. We’ll explain what’s warranty-safe before we start.
Rates depend on the flue and the condition we find. Call (855) 360-7080 for an exact quote. Estimates are free, and the written estimate sets the final price.
Book Your HeatShield Service in Longmont, CO
If you’ve got a HeatShield liner and want a sweep who actually knows the system, we handle the whole flue, from creosote removal to crown repair. Call (855) 360-7080 for a free estimate. We answer 24/7. Fast dispatch, 7am-7pm.
Written by the team at Chimney Sweep Longmont.