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.
Chimney Company in Derby, CO
Chimney repair in Derby usually starts with a problem the homeowner can already see: a cracked crown, a rusted cap, or a flue that’s been pulling smoke back into the room during cold snaps. Derby’s older ranch and manufactured homes sit on large lots scattered across the South Platte valley, and many of them run wood stoves hard for supplemental heat. That combination puts real stress on chimneys here. We handle cleaning and repair under one roof, so when a sweep turns up a failing liner or crumbling mortar, it gets fixed in the same visit. Call (866) 361-5660 for a free estimate.
Why Derby Homes Are Different
Most of Derby is unincorporated, tucked between Commerce City’s industrial edge and open Adams County farmland, and that shapes the work in ways a dense suburb never would. Homes here are spread out, built on big lots, and a large share of them are older ranch-style or manufactured houses from the mid-20th century. Many have a wood stove or a freestanding fireplace added later for supplemental heat rather than a decorative fireplace as the centerpiece of a living room.
The fuel matters as much as the appliance. With well water and rural septic common on these properties, plenty of households burn scrap wood or pallets in shop-style stoves, and unseasoned fuel builds heavy, glaze-prone creosote instead of the light soot you’d find in a suburban fireplace that sees a few fires a season. Add the valley’s winter temperature inversions, which trap cold air and smoke, plus freeze-thaw cycles that work on masonry through every Front Range winter, and the chimneys in Derby age faster than their age suggests.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Our Main Derby Services
Two jobs come up most often on the properties we see around Derby: the annual sweep that keeps a working flue safe, and the dryer vent cleaning most chimney-only outfits never touch.
Chimney Sweep in Derby
A sweep in Derby isn’t the quick brush-out a decorative fireplace needs. When we clean a wood stove flue here, we’re often dealing with pallet wood creosote that’s hardened into a glaze, and that takes rotary tooling, not just a hand brush. We run a camera through the flue, pull the creosote down, and show you the before-and-after so you know what’s actually in there. If the inspection turns up cracked mortar or a liner that’s given up, we can quote the fix on the spot. Chimney Sweep in Derby covers what the visit includes.
Dryer Vent Cleaning in Derby
Lint builds up in the vent run, and on homes with long or partially buried ductwork it packs down into a dense mat that restricts airflow and raises the heat in the line. The rural-style homes around Derby often have vents that run farther than they should, which makes the problem worse. Lint is one of the leading causes of residential fires in the country, and the fix is simple: clear the run, check the exterior damper, and confirm airflow is where it should be. Dryer Vent Cleaning in Derby explains the full process.
Chimney Repair in Derby
Chimney repair here tends to be structural rather than cosmetic. The mid-century masonry and metal flues common across Derby have been through decades of freeze-thaw cycles in the South Platte valley, and wood stoves running on scrap fuel push more heat and more creosote through them than a fireplace ever would. That’s where our Chimney Repair work comes in – we find the failure, then fix it in the same visit the sweep is scheduled for.
Chimney Cap Installation
Signs you need it
You’re seeing water stains on the firebox ceiling, animals or debris in the flue, or smoke curling back down during a cold inversion.
What it costs in Derby
Cap installation in Derby typically runs $185 to $450, depending on the flue size and whether a custom stainless cap is needed.
How we do it
We measure the flue, fit a stainless or copper cap from Gelco or Olympia Chimney, and secure it so valley wind and snow load don’t shift it.
Chimney Cap Replacement
Signs you need it
The existing cap is rusted through, bent, missing its screen, or sitting loose after a windstorm.
What it costs in Derby
Replacement typically falls between $165 and $400, with the final figure set by flue dimensions and the cap style you choose.
How we do it
We pull the old cap, check the flue tile underneath for damage, and set a new cap sized to the actual opening rather than reusing the old dimensions.
Chimney Liner Installation
Signs you need it
A camera inspection shows cracked or spalled clay tiles, gaps at the joints, or a flue that’s oversized for the appliance venting into it.
What it costs in Derby
Liner installation is a larger job in Derby, typically $2,400 to $5,800 depending on flue height, liner diameter and whether insulation is wrapped around it.
How we do it
We run a DuraFlex liner sized for your appliance, insulate it where the flue requires it, and connect it at both the cap and the appliance collar.
Chimney Flashing Repair
Signs you need it
You’re seeing water on the chimney breast after rain, rusted flashing metal, or a gap where the roof meets the stack.
What it costs in Derby
Flashing repair here typically runs $275 to $750, higher when the flashing has to be rebuilt to fit an uneven roofline.
How we do it
We lift the old flashing, reseal or replace it with proper counter-flashing and step flashing, then check the surrounding shingles for water tracking.
What Chimney Repair Costs in Derby
| Item | Typical range in Derby |
|---|---|
| Cap installation or replacement | $165 – $450 |
| Flashing repair | $275 – $750 |
| Liner installation | $2,400 – $5,800 |
Can chimney repairs be done during the same visit as the sweep?
Usually yes. Caps, flashing and crown work can often be handled the same day the sweep is booked, since one specialist handles both. Liner installation is scheduled as its own visit, with the estimate agreed before any work starts.
How do I know if my Derby chimney needs repair rather than just a cleaning?
The camera inspection tells you. If the flue tiles are cracked, the crown is failing or the cap has rusted through, you’ll see it on the screen during the visit. Nothing gets recommended without evidence you can look at yourself.
Brands We Service in Derby
We install and work with professional-grade chimney materials from brands specialists across the industry rely on, including Gelco, Olympia Chimney, Famco and Copperfield, plus DuraFlex liners and HeatShield resurfacing. Brands outside that lineup can usually be sourced, though turnaround runs longer. See our brands for the full list.
See the difference
Before
After
Before
After
Before
AfterPricing for Chimney Company in Derby, CO
Every job is priced per home, set by a written estimate before work begins. What pushes the number up in Derby is usually access, flue height and how much creosote has to come out.
| Service | Typical range in Derby |
|---|---|
| Yearly chimney sweep | $165 – $350 |
| Dryer vent cleaning | $120 – $260 |
| Crown repair | $275 – $700 |
| Cap installation or replacement | $165 – $450 |
| Flashing repair | $275 – $750 |
| Liner installation | $2,400 – $5,800 |
| Full inspection with photo report | $150 – $300 |
| Creosote removal (heavy glaze) | $250 – $600 |
Heavy glaze from unseasoned firewood, tall stacks and cramped roof access all add labor on Derby properties. You’ll see the range in writing before we schedule, and the written estimate sets the final price.
Neighborhoods We Serve in Derby
We cover the whole of Derby and the surrounding Adams County pockets, from the properties closer to Commerce City’s industrial edge out to the farmland lots to the northeast. Because homes here are spread out, response time depends on where you are and what’s booked that day rather than on a fixed zone. Fast dispatch from 7am to 7pm, Sunday through Friday.
- Derby proper and the South Platte valley lots
- The rural properties along the Adams County line
- Homes near the Commerce City industrial edge
- Older ranch and manufactured home parcels on the outskirts
Service Area – Cities Near Derby
Derby sits close to several communities we cover, and the same valley conditions apply across them. If you’re just outside Derby, we can usually still get to you. See our pages for Thornton, CO, Sherrelwood, CO, Welby, CO and Federal Heights, CO, or call and we’ll confirm coverage for your address. Main hub: Chimney Sweep Thornton.
Serving Derby, CO – Our Local Coverage Area
We serve Derby and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Chimney Company in Derby
Yes. Derby’s unincorporated status doesn’t change anything for us. We serve the whole valley area, including the scattered rural lots on larger parcels. Call (866) 361-5660. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Most structural changes, including liner replacement, often require a permit through Adams County or the local building authority. We’ll flag what applies to your job, and you can confirm specifics with the county before work is booked.
Response depends on your location within the valley and the day’s schedule. We answer 24/7, and a call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm.
Call (866) 361-5660 for a free estimate. Our technicians have up to 10 years of experience, and every job is priced in writing before we start. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
What happens when you call
- 1A real person answersNo phone trees. Talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Derby Customers Say
"Drop cloths everywhere, HEPA vac, and not a speck of soot on the carpet. I'd been dreading the mess for nothing."
- Vivian Chen"Good work. The written inspection report took about a week to arrive after I asked for it, which was slower than I expected."
- Carlos Herrera"Creosote buildup was worse than I realized. He measured it, showed me the glazing on the flue with the camera, and was honest that we were closer to a chimney fire than I wanted to hear."
- Doug Delaney