Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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.
HeatShield Chimney Cleaning in Andover, MA
We provide independent HeatShield service across Andover, working with the ceramic resurfacing system in the field rather than as a dealer or franchisee. The one thing that shapes our HeatShield work here is the housing itself: Andover’s stacked, multi-flue central chimneys and shared crowns mean every flue has to be judged on its own before anyone casts a liner. Call (888) 450-3059 and we’ll schedule a visit. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.

Why Andover Residents Choose Us for HeatShield Service
We handle HeatShield work as part of a full chimney scope, so a sweep, a Level 2 inspection, and a repair recommendation come from the same technician who will actually do the repair. That matters in a town where the same week can bring a 200-year-old parged flue and a 1980s prefab insert.
We’re an independent shop. We pull, prep, and cast Cerfractory compound in the field, and we use HeatShield’s own compound and Armor plating rather than generic refractory cements that cure differently and can leave a flue short of what the system is meant to deliver. Because we aren’t tied to HeatShield as a manufacturer, we can also tell you plainly when resurfacing isn’t the right answer and a stainless liner is.
Our technicians have up to 12 years of experience, and every job in Andover starts with a written, flat-price estimate agreed before we book.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common HeatShield Chimney Cleaning Problems We Solve in Andover
Most of the HeatShield problems we come across in Andover trace back to how a previous casting was prepped, or to water getting in from above it. Here’s what we find:
- Thin castings that pull away from the clay tile. New England freeze-thaw cycling works on any weak bond, and after a few hard winters a partial or thin HeatShield layer can separate from the original tile. A sweep brush then catches on the lip of the gap, which is usually how the homeowner finds out.
- Compound applied over unreamed creosote and glaze. If a flue wasn’t properly scraped and reamed before resurfacing, the HeatShield won’t bond to clean masonry. It flakes, and you’re left with a lining that looks intact from the top and isn’t.
- Resurfaced flues with an untreated shared crown. In Andover’s older houses a crown often serves more than one flue. Coat the inside and leave soft brick and mortar at the top, and water keeps entering behind the coating and spalling the exterior stack all winter.
- Misapplied HeatShield on oversized or offset flues. Without proper backfill, voids open behind the casting and crack under the thermal cycling of a long heating season. This is where a backfill kit decides whether the job holds.
- Failed prior castings that need a liner, not another layer. Missing tile sections or severe offsets mean resurfacing is the wrong tool. That’s a stainless liner call, and we’ll say so.
HeatShield Service in Andover: What Local Conditions Mean for Your Equipment
Andover’s village core holds a dense cluster of 18th- and 19th-century colonial and federal homes, and many of those central chimneys serve several fireplaces on stacked flues under one shared crown. That single detail drives how a HeatShield evaluation has to run here. You can’t inspect the stack as one unit and quote it as one unit. Each flue is isolated and assessed separately: the crown deterioration letting water into one flue is usually already affecting its neighbors, and the flue that’s drafting poorly may not be the one with the cracked joints. During a Level 2 inspection we look at every flue in the stack, then at the crown and upper courses above them, because a HeatShield casting that goes in under a failing crown is a repair with a hole in it. Around the subdivisions of 1960s-1990s colonials, the work shifts: clay-tile liners and prefab inserts, where the same freeze-thaw cycle spalls exterior brick and the question is bond and clearance rather than centuries-old mortar.
HeatShield Models & Products We Service in Andover
We work with the HeatShield Cerfractory Flue Sealant for standard resurfacing, the resurfacing system for clay-tile liners with deteriorated mortar joints, the Armor plating for flues with heavy spalling or missing tile, and the insulation wrap and backfill kits that go with a proper casting. Those are the parts that belong in a resurfaced flue, and they’re the parts we use.
What we won’t do is substitute an off-brand refractory cement because it’s cheaper. It behaves differently under heat and cold, and you’d be paying for a repair that doesn’t do what HeatShield is supposed to do. We’re an independent provider of HeatShield service, not affiliated with or authorized by the manufacturer, and we price the work per job by written estimate so you know the scope before anything is cast.
See the difference
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After
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AfterHeatShield Service Pricing in Andover
Every HeatShield job in Andover is priced individually, because the cost depends on how many flues a shared stack holds, how much prep the existing tile needs, whether Armor plating or backfill is required, and what the crown above needs before a casting will hold. A free estimate includes the Level 2 inspection findings written out, photos of what we found, and a flat price agreed before we book.

One thing worth knowing: a HeatShield resurfacing is often less than a full stainless reline, which is why we offer it where the flue qualifies. When it doesn’t, we’ll tell you and quote the liner instead. Call (888) 450-3059 for a free estimate.
Serving Andover, MA – Our Local Coverage Area
We serve Andover and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – HeatShield Chimney Cleaning in Andover
Yes, in many cases, provided the original masonry is structurally sound and properly prepped. Old parged interiors need thorough reaming first, and soft lime mortar has to be assessed flue by flue. If the masonry is too far gone, we’ll say so rather than cast over it. Call (888) 450-3059 to book an inspection.
Often yes, and that’s exactly why we inspect each flue separately. A shared crown still has to be addressed as a whole, since water entering above one flue usually reaches the others. Call (888) 450-3059 and we’ll walk the stack with you.
A properly prepped and backfilled Cerfractory casting is designed to last through many heating seasons, but shared crowns and soft exterior brick are what shorten its life here. We flag crown and mortar work in the estimate because that’s the part that protects the casting. Call (888) 450-3059 for a free estimate.
Sometimes. The old patch has to come off cleanly and the tile beneath has to be sound enough to take a proper casting. Where it isn’t, a stainless liner is the honest answer. Call (888) 450-3059 to find out which applies to your flue.
It’s a full look at every flue in the stack, the crown and upper courses, clearances, and the appliance connections, with photos so you can see what we see. Nothing gets recommended without camera evidence. Call (888) 450-3059 for a free estimate.
Service Areas Near Andover
We provide HeatShield service in Andover and the towns around it, including Andover itself, Lawrence, Methuen Town, Lowell, and Wilmington. If you’re nearby and not sure whether we cover your street, call and ask.
Book Your HeatShield Service in Andover Today
If your flue has a cracked liner, a failing prior casting, or a shared crown that’s spalling, we’ll give you a straight assessment and a flat price before any work starts. Call (888) 450-3059 for a free estimate. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Written by the team at Chimney Sweep Lowell.