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.
The Ashby Chimney San Jose Guarantee
Here’s what our guarantee actually means, in plain terms. When we sweep your chimney, inspect your fireplace, or complete a repair in your San Jose home, we put the scope of work, the price, and our promise in writing before we start. If a covered repair fails inside the guarantee period, we return and correct it at no charge. That’s the 365-Day Done Right Promise, and it isn’t marketing language. It’s how Nathan Corliss has run Ashby Chimney San Jose since 2002, and it’s the standard every independently owned Kingswell location follows.
What’s Covered
- Workmanship. Every repair we complete carries a written guarantee, and if that repair fails within the guarantee period, we come back and fix it free of charge.
- Parts and materials. We source from recognized chimney-trade brands like DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield, so what goes into your flue is made for the job, not whatever happened to be in the van.
- Cleanup. We leave your hearth, floor, and surrounding area cleaner than we found it, with drop cloths down and a full post-job sweep of the work zone.
- On-time arrival. We show up inside the window we give you, and if anything changes, a live person calls you from our San Jose office to update you.
- Honest pricing. The written price you approve before work starts is the number on your invoice. No add-ons, no surprises at the door.
Styles & brands we work with





Our Satisfaction Promise
If something isn’t right, you don’t have to convince us. Call (669) 266-5073 and tell us what’s wrong. We’ll review the job, the photos from our camera inspection, and the written guarantee you received at completion. If the issue falls inside the 365-Day Done Right Promise, we schedule a return visit and make it right at no charge. If the repair fails again inside the guarantee period, we come back again, also free. That’s not a warranty buried in fine print. It’s the Kingswell Way: say the price, show up in the window, leave it cleaner, put the guarantee in writing, and come back if it fails. Nathan Corliss has been doing this in San Jose for over two decades because word travels fast when a chimney company actually stands behind the work.
One thing worth saying plainly: we never upsell a repair you don’t need. Our camera inspection gives you a clear view of your flue liner, the clay or steel tube that vents combustion gases out of your home. If the liner shows minor wear but is still safe, we’ll tell you it can wait. If it needs attention, you’ll see the footage yourself before you spend a dollar. We’d rather explain a thousand “not yet” answers than sell one unnecessary repair.
Licensed & Insured Backing
A written guarantee is only worth the company standing behind it. Ashby Chimney San Jose is licensed and insured, and every technician who walks into your home is background-checked and uniformed, so you know exactly who you’re letting through the door. Insurance protects your property while we work, and licensing means we answer to California’s standards for chimney and fireplace service. The guarantee Nathan Corliss signs is backed by real credentials, not just a handshake. When we say we’ll return if the repair fails, we have the standing to do it, and the track record in San Jose to prove it.
See the difference
Before
After
Before
After
Before
AfterHow the Guarantee Works, Step by Step
Here’s the process so there’s no ambiguity. First, we inspect the chimney or fireplace and run a camera through the flue if the job calls for it. You see the condition with your own eyes. Second, we write up a price for the exact work needed and hand it to you before anything starts. You approve it, or you don’t. No pressure. Third, we complete the work using trade-grade materials from brands like DuraFlex and HeatShield. Fourth, we hand you a written guarantee covering the repair, with the period stated clearly on the page. Fifth, if that repair fails during the guarantee period, you call (669) 266-5073 and we schedule a return. We fix it. You pay nothing for the return visit. That’s the entire promise.
What the Guarantee Does Not Pretend to Be
We’re not going to tell you a chimney sweep lasts for a decade or that a repair is good for a lifetime. A wood-burning fireplace in San Jose faces real wear from creosote buildup, coastal moisture patterns, and the occasional freeze-thaw cycle in the hills. What we guarantee is our workmanship and the materials we install. The Kingswell Guarantee covers the repair for the stated period, and if it fails inside that window, we return at no charge. We also include a free second visit if the repair fails again inside the guarantee period. That’s a real promise with a real process behind it, and it’s been our standard since 2002.
Common Questions About Our Guarantee
How much does a chimney sweep cost in San Jose?
Most chimney sweeps in San Jose run between $189 and $329 depending on the height of the flue, the type of fireplace, and the amount of creosote buildup. Our written price comes before any work starts, so the number you approve is the number you pay. Call (669) 266-5073 for an exact quote for your fireplace, free.
What does the Kingswell Guarantee cover?
The Kingswell Guarantee covers the workmanship on every repair we complete for the stated guarantee period. If a covered repair fails inside that period, we return and correct it at no charge, including a free second visit if the repair fails again. You’ll see the exact period written on your guarantee paperwork before you pay a dollar.
Do I really need a new flue liner?
Not always. A flue liner, the clay or steel tube that vents combustion gases out of your home, can show surface wear while still functioning safely. Our camera inspection shows you the actual condition, and if the liner is safe, we’ll tell you it can wait. If it’s not, you’ll see the footage yourself and understand exactly why the repair is necessary before you approve any work.
What actually happens if I skip a chimney sweep?
In San Jose, where we burn wood through the cooler months and the marine layer keeps moisture in the air, creosote can build up faster than homeowners expect. Creosote is combustible, and a heavy accumulation raises the risk of a chimney fire. A clogged flue can also push carbon monoxide back into the house instead of venting it out. A sweep is cheap insurance against both. Call (669) 266-5073 and we’ll give you a straight answer about your chimney’s condition.
Will you show me what’s inside my chimney before recommending work?
Yes. Every inspection includes a camera view of the flue when the job calls for it, and we’ll walk you through what we see. If we recommend a repair, you’ll see the evidence on screen before you approve a dollar. If we don’t recommend a repair, we’ll tell you that too, and explain what can safely wait.
Do you guarantee the price you quote?
Yes. Every job gets a written price before work starts, and that’s the number on your invoice. If we discover something unexpected mid-job, we stop and show you before continuing. No surprise charges, no “while we’re in there” upselling. That’s been the Ashby Chimney San Jose standard since 2002.
If you have a chimney or fireplace in San Jose, Alviso, Willow Glen, Campbell, Los Gatos, or anywhere in Santa Clara County, call (669) 266-5073 and talk to a live person. We’ll walk you through what we’d inspect, what we’d sweep, and what we’d guarantee in writing before any work begins.
Written by Nathan Corliss, Owner at Ashby Chimney San Jose, serving San Jose since 2002.