Chimney Pro Solutions
Chimney Relining Options for Seattle Homes: Clay, Stainless & Cast-In-Place
Most Reliable Chimney & Fireplace Services company for Homeowners Throughout King County Since 2011.
Why Chimney Liners Matter
The flue liner is the most important safety component of your chimney. Its purpose: contain combustion gases and heat within the chimney, protect surrounding combustible building materials from heat transfer, and provide a smooth, properly sized pathway for exhaust to exit. When liners are damaged or inadequate, heat can transfer to adjacent framing (fire risk) and combustion gases (including carbon monoxide) can infiltrate living spaces.
Signs You May Need Chimney Relining
- Clay tile fragments or pieces in the firebox
- Deteriorating clay tile visible on Level 2 video inspection
- Failed chimney inspection citing liner condition
- Carbon monoxide detector alarms
- Installing a new or different appliance connected to the chimney
- Chimney age over 30 years without inspection
- Previous chimney fire that may have damaged the liner
- Switching fuel types (wood to gas, or vice versa)
Option 1: Flexible Stainless Steel Liner (Most Common)
Flexible stainless steel liners are the most common and versatile relining solution. A continuous corrugated metal liner is run from the flue top to the appliance connection point. Stainless steel liners are available in two grades: 304 stainless (for gas appliances and light wood use) and 316L stainless (for wood-burning and solid fuels, more resistant to acidic flue gases).
- Suitable for gas, oil, and wood-burning appliances
- Relatively quick installation (1 to 2 days)
- Significant cost: $1,500 to $3,500 installed depending on height
- Best for chimneys with straight or slight bends
- Should be insulated when used for wood-burning in exterior chimneys
- 25-year warranty from leading manufacturers
Option 2: Rigid Stainless Steel Liner
Rigid liner sections provide the smoothest interior surface and best airflow characteristics. Required for some applications (particularly oil-burning appliances) and preferred when accessibility allows. Installation is more involved than flexible liner but the result is superior draft performance.
Option 3: Cast-In-Place Liner (Best for Damaged or Irregular Flues)
Cast-in-place systems use a specialized lightweight insulating material pumped around an inflatable form inside the existing flue. When cured, it creates a smooth, monolithic new liner that follows the exact shape of the original flue, including any offsets, irregular sections, or damage. This is the best option for chimneys with significant damage, unusual shapes, or where draft problems exist.
- Ideal for older chimneys with irregular or damaged flues
- Creates insulated, seamless liner regardless of flue shape
- Strengthens the overall chimney structure
- Cost: $2,500 to $5,000 depending on chimney height
- 50-year warranty from leading systems
Option 4: HeatShield Flue Sealant (For Minor Liner Damage)
HeatShield is a resurfacing system used to repair cracked or damaged clay tile liners when the liner is fundamentally intact but has isolated cracks or joint gaps. A technician applies ceramic sealant material to the damaged sections using specialized tools. HeatShield is approved by the CSIA and ICC as an alternative to full relining for qualifying conditions.
Not all damaged liners qualify for HeatShield repair, a Level 2 inspection is required to determine if the liner damage is isolated enough for this approach.
Frequently Asked Questions
How long does chimney relining take?▼
Flexible stainless liner: 1 to 2 days. Cast-in-place systems: 2 to 3 days including curing time. HeatShield application: 1 day.
Does my gas fireplace need a liner?▼
Yes, all gas appliances require code-compliant venting. Gas fireplaces use the existing liner or a new liner appropriately sized for the appliance BTU rating.
What happens if I use a fireplace with a damaged liner?▼
Risk of chimney fire (heat transfer to combustibles) and carbon monoxide poisoning (exhaust gases infiltrating living spaces). Do not use a fireplace with a known damaged liner.
Ready for a Free Repair Estimate?
Our certified technicians serve all of King County. Call or book online today.
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What Homeowners Are Saying
"Shawn gave an estimate and quickly scheduled the cleaning. He did a great job and answered all our questions about fire safety and chimney maintenance!"
"We had a really bad experience with another contractor who took our money and left us with an unfinished and unsafe chimney. We were nervous about hiring someone else after that, but Chimney Pro Solutions made the whole process completely different. They took the time to explain what was wrong, showed us exactly what needed to be rebuilt, and were very clear about the work from the beginning. Their team rebuilt our chimney professionally, kept us updated throughout the project, and made sure everything was completed properly. After what we went through before, it was a huge relief to finally work with a company that was honest, reliable, and stood behind their work. We’re very happy with the rebuild and would definitely recommend them."
"I had a great experience with Chimney Pro Solutions. They were always responsive and willing to work with our schedule. I had a lot of difficulty with other chimney places getting a response or working with my schedule, but these folks actually care about their work and were always respectful and commutative from David responding to my emails and Sean doing the work and texting with updates. If you need high quality chimney services these are your folks! The photos of the before and after work speak for themselves so go ahead and give them a call!"
"Listen, when I tell you, Sean from Chimney Pro solutions is a good dude, I can’t stress it enough. He came out to assess my fireplace and chimney in March after we were smelling smoke in the house days after having a fire. He found my firebox was looking a little rough and that there was a solid amount of creosote in the chimney. He gave me several options for remediation/repair. Due to family emergency I had to leave town for several months. I wound up having reschedule repair service three times and he couldn’t have been more gracious and understanding. As for the service, he did a beautiful job. I didn’t realize how gross my fireplace was. It looks brand new and is safe to use. Plus he was meticulous about cleaning up after himself. I told him he’ll be our first call when it comes time for roof repair! Call these guys!!"
"We recently had Chimney Pro Solutions repair our chimney in Seattle after noticing cracks and water leaks around the fireplace. Sean explained everything clearly, showed us photos of the damage, and the crew did an amazing job with the repairs. The chimney looks great now and we feel much safer using our fireplace. Highly recommend!"
"Excellent experience replacing our old gas fireplace with a new one! The team was professional, efficient, and did a beautiful job with the installation. Everything works perfectly, and the new fireplace looks amazing. Great communication, clean workmanship, and overall outstanding service. Highly recommend!"
"We had our chimney inspected last Tuesday and it was repaired today, such a fast turnaround from our technician, Yuval. He was knowledgeable, professional, and took the time to clearly explain what needed to be done without any unnecessary upselling. The cost was also very reasonable. We highly recommend Chimney Pro Solution if you need chimney services. After dealing with concerns about our chimney, it was a relief to have everything handled quickly and professionally. We now have real peace of mind."
"Chimney Pro solutions came out to inspect my gas fireplace. They was really thorough and professional! Will definitely suggest them to friends and family."
"Great experience with Chimney Pro Solutions. Sean arrived on time, explained everything clearly, and showed me photos from the inspection. The work was done professionally and cleanly, with no pressure or upselling. I’d definitely recommend Chimney Pro Solutions."
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