Fast, Reliable Fireplace Services Across North Portland
Fireplace service in North Portland typically runs $180–$450 depending on whether you need a routine cleaning, damper repair, or firebox rebuild, and we’re usually on-site in St. Johns, Kenton, or the surrounding 97203 area within 24–48 hours. We’ve spent 17 years working on chimneys, and North Portland’s stock of pre-WWII homes keeps our Fireplace Services team busy through every burn season. Call us at (866) 541-8697 for a free estimate.

What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Why Horizon Chimney Sweep Washington Is North Portland’s Preferred Fireplace Services Company
North Portland homeowners know the difference between someone who cleans chimneys and someone who understands what these chimneys have been through. James Wilson, our owner and lead technician, has been inside thousands of flues across the Pacific Northwest, and the patterns we see in St. Johns, Kenton, and the 97203 ZIP are distinct from anywhere else in Portland.
Our 1,006 verified reviews averaging 4.8 stars include repeated calls from North Portland customers who started with a routine sweep and stayed with us through liner replacements and firebox rebuilds. That sustained trust matters more than any slogan. When James Wilson arrives at your door, you’re getting 17 years of hands-on chimney expertise — not a subcontractor learning on your brickwork.
We know the peninsula’s damp microclimate accelerates problems that higher-elevation neighborhoods don’t face. That local knowledge means faster, more accurate diagnoses and repairs that actually last.
Our Fireplace Services in North Portland
Wood Burning Fireplace Service
Wood burning fireplaces in North Portland’s 1910–1945 homes are often original to the structure — single-wythe brick chimneys with deteriorated clay tile liners or no liner at all. The damp air rolling off the Columbia Slough keeps creosote wet and heavy, which means glazed (third-degree) buildup is common here by mid-season. We remove it with specialized equipment and always inspect for the structural damage that wet deposits hide. On a recent call in the St. Johns neighborhood, we found a Wood Burning Fireplace in a 1920s Craftsman bungalow where the original clay tile liner had deteriorated, and heavy glazed creosote required multiple treatments with our DuraFlex tools. We advised the homeowner that the unlined flue posed a fire hazard and recommended a HeatShield relining to bring the system up to code, which they approved after our video inspection showed the severity.
Gas Fireplace Service
Gas conversions and gas fireplace maintenance in North Portland require attention to venting paths that were never designed for modern appliances. Many homeowners in Kenton and St. Johns have converted from wood to gas without updating the flue diameter or liner material, creating drafting problems and moisture accumulation. We inspect for proper venting, check gas valve assemblies, and ensure your conversion meets current standards — not just the ones in place when your bungalow was built.
Fireplace Insert Installation & Service
Fireplace inserts are popular in North Portland’s smaller Craftsman layouts, but we’ve seen too many 1970s-era installations that vent into unlined masonry flues through single-wall stovepipe — a configuration that looks fine from the living room but is a code violation and active fire hazard visible only from the roofline. We remove these dangerous setups and install properly sized inserts with appropriate venting, using Olympia Chimney components sized for your specific flue.
Damper Repair
Damper failure in North Portland is often moisture-related. The peninsula’s chronic humidity rusts steel throat dampers and warps cast-iron frames, while freeze-thaw cycles in winter crack the masonry seats they mount into. A stuck or missing damper costs you heated air year-round and can allow down-drafts that push smoke into your living space. We repair or replace dampers and rebuild the surrounding firebox masonry when spalling has compromised the seal.
Firebox Repair
Firebox brick and mortar in North Portland’s older homes takes a beating from both heat cycling and moisture intrusion. We’ve rebuilt fireboxes in St. Johns bungalows where the rear wall had deteriorated to the point that framing members were exposed to radiant heat — a genuine fire risk. We use HeatShield refractory materials and proper expansion joints so the repair handles the thermal stress of regular use through Portland’s long burn season.
Fireplace Conversion
Converting a wood-burning fireplace to gas in North Portland requires evaluating whether your existing flue can safely vent the new appliance. Many 97203 chimneys cannot. We specify the right venting solution — direct vent, natural vent with liner, or power vent — and handle the mechanical and venting work without cutting corners on inspection access or clearances.

Trusted Brands We Service in North Portland
We install and repair with professional-grade materials: DuraFlex for relining and flexible flue work, HeatShield for firebox restoration and cerfractory resurfacing, Gelco for caps and spark arrestors, Olympia Chimney for rigid liner systems and inserts, Famco for dampers and termination fittings, and Copperfield for specialty flashing and sealants. These aren’t off-brand substitutes — they’re the products we trust after 17 years of seeing what survives Portland’s wet winters. We stock common parts for faster turnaround on North Portland jobs, so you’re not waiting weeks for a cap or damper assembly while rainwater pours into your flue.
Common Fireplace Services Problems We See in North Portland Homes
- Freeze-thaw mortar spalling on original chimneys. The damp peninsula microclimate keeps masonry saturated, and winter temperature swings pop the face off bricks and crumble mortar joints. By the time you see interior damage, the exterior shell is often worse.
- Hidden 1970s stovepipe connections in “updated” fireplaces. St. Johns technicians routinely discover single-wall stovepipe running from a wood stove insert directly into an unlined masonry flue — DIY installations that look intact from the firebox but are visible code violations and active fire hazards when inspected from the roofline, a pattern specific to this neighborhood’s era and economic history.
- Glazed creosote requiring mechanical removal. North Portland’s humidity prevents creosote from drying into flaky, brushable deposits. Instead, it hardens into glazed layers that resist standard sweeping and require rotary DuraFlex equipment to remove safely.
- Deteriorated clay tile liners with no replacement record. Original liners in 1920s–1940s chimneys have exceeded their design life. We’ve pulled out sections that had collapsed and were blocking the flue, causing smoke backup and carbon monoxide risk.
Pricing for Fireplace Services in North Portland, OR
Here’s what fireplace services typically cost in the North Portland market:
| Service | Typical Range in North Portland |
|---|---|
| Chimney sweep and basic inspection | $180–$260 |
| Gas fireplace service and diagnostic | $150–$220 |
| Damper repair or replacement | $280–$450 |
| Firebox repair (partial rebuild) | $650–$1,200 |
| Fireplace insert installation (with proper venting) | $2,800–$4,500 |
| Chimney relining (HeatShield or DuraFlex) | $2,200–$3,800 |
Actual cost depends on access height, extent of masonry damage, and whether we find unpermitted modifications that need correction. We always provide upfront pricing before work begins — call (866) 541-8697 for a free estimate at your North Portland home.
We Also Serve Cities Near North Portland
Our service area extends to Kenton, Bethany, Cedar Mill, and Oak Hills. If you’re in these neighborhoods and have a fireplace or chimney concern, the same response times and local expertise apply.
Serving North Portland, OR — Our Local Coverage Area
We’re based in the North Portland area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — Fireplace Services in North Portland
The low-lying peninsula location of St. Johns creates persistent dampness and fog that accelerates mortar joint erosion and produces wetter, stickier creosote — conditions that routinely reveal structural problems during what starts as a routine cleaning. Call (866) 541-8697 to schedule an inspection if your St. Johns home hasn’t been evaluated in the past year.
Most original clay tile liners in North Portland’s 1920s homes have exceeded their service life and should be relined rather than patched. We use video inspection to assess deterioration; if tiles are cracked, shifted, or missing, a DuraFlex or HeatShield relining is the safer long-term investment. Call us at (866) 541-8697 for a video evaluation and exact quote — estimates are free.
Check whether the insert vents through a proper stainless liner running the full flue length, not through single-wall stovepipe directly into unlined masonry — a dangerous configuration we still find regularly in 97203 homes. If you’re unsure what’s inside your chimney, we can inspect from the roofline and show you exactly what you have. Call (866) 541-8697 to book a look.
Yes — the elevated humidity in North Portland’s peninsula neighborhoods prevents creosote from drying and flaking off naturally, leading to heavier, harder deposits that build up faster and require more frequent professional removal. Annual sweeping is the minimum for regularly used fireplaces here; heavy users may need mid-season attention. Call (866) 541-8697 to set up a schedule that matches your burn habits.
We primarily use DuraFlex for flexible stainless relining and HeatShield for cerfractory resurfacing of structurally sound but unlined or deteriorated flues — both chosen for durability in wet, freeze-thaw climates like North Portland’s. For rigid liner systems and inserts, we specify Olympia Chimney components. Call (866) 541-8697 to discuss which approach fits your chimney’s condition.
Ready to get your North Portland fireplace or chimney assessed? Call (866) 541-8697 today for a free estimate. James Wilson or a member of our chimney-exclusive team will respond within 24 hours, and we’ll give you an honest assessment of what your system needs — no pressure, no upsell, just 17 years of expertise applied to your home.
Written by James Wilson, Owner at Horizon Chimney Sweep Washington, serving North Portland and the greater Portland area since 2008.