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.
Gelco Chimney Cap Installation: The Woodland Hills Owner’s Guide
Gelco chimney cap installation in Woodland Hills typically runs $340 – $620 installed, and we stock Gelco-compatible caps and mounting hardware on our trucks, so most swaps are done in a single visit. You’re probably here because your cap is rusted through, missing a spark screen, or got knocked loose by wind off the Santa Susana Mountains and now you’re hearing rain hit the damper. This page covers exactly what fails on Gelco caps, what the replacement actually costs, and what photos we’ll show you before we touch a tool.

Here’s the short version: Gelco builds solid caps, but the mounting system and spark screen take the most abuse in our climate. We’ve pulled enough crusted, wind-battered Gelco caps off Woodland Hills chimneys to tell you precisely what you’re dealing with, and the honest truth is most owners catch the problem years after it started because nobody looks at their chimney cap until water or animals make it obvious.
Key Takeaways
- Installed Gelco chimney cap replacement in Woodland Hills: $340 – $620, parts and labor included.
- Most Gelco cap failures trace to rust-through on the spark screen or a loosened mounting bracket, not the cap body itself.
- We stock Gelco-compatible caps, spark screens, and stainless mounting brackets on the truck, so most jobs finish same visit.
- Every install carries our written 365-Day Done Right Promise, including a free second visit if the repair fails.
- Call (559) 249-1347 and a live person answers, 24/7. No callback queue.
Which Gelco Models This Applies To
Gelco’s residential chimney caps fall into a few families: the standard single-flue cap (the most common in Woodland Hills tract homes), the multi-flue cap for homes with two or three flues on one crown, and their stainless and copper decorative lines. The single-flue Gelco caps typically fit tile liners from 8″×8″ to 13″×13″, but the measurement that actually matters is the outside dimension of your flue tile, not the inside opening. We’ve seen more than a few homeowners order a cap based on the inside measurement and end up with a cap that won’t seat.
The compatibility gotcha with Gelco is their mounting band design. Older Gelco caps used a slotted band with bolts that tighten against the outside of the flue tile. On chimneys that have been repointed or had a custom concrete crown poured, that band often doesn’t sit flush, which is how caps end up crooked or launched into a neighbor’s yard during Santa Ana season. Newer Gelco mounting brackets handle irregular tile surfaces better, but if your flue tile has been parged or wrapped, we may recommend a different bracket style than the one that came off.
You can identify your Gelco cap by checking the underside of the hood near the screen edge; Gelco stamps their name and a model number on the stainless and copper lines, though older painted steel models may have worn flat. If there’s no readable stamp, we measure the flue tile and match from that. When original Gelco parts aren’t the right call, we cross-reference to quality aftermarket equivalents with the same gauge steel or copper, but we’ll show you both options and the price difference before you decide. Hadley Chimney Woodland Hills is an independent service provider, not affiliated with Gelco. We also work with DuraFlex and HeatShield when a cap replacement turns up liner work underneath.
Styles & brands we work with





Signs Your Gelco Chimney Cap Installation Is Failing
- Rust streaks on the chimney crown or down the brick face. This tells you the cap body or screen is oxidizing, and that rust-laced water is pooling on the crown. Left alone, it accelerates crown cracking, which is a much more expensive fix than a cap.
- Rain noise when it’s clear outside. You shouldn’t hear water hitting the damper assembly. If you do, the cap hood has warped or a seam has split, and water is entering the flue directly.
- Spark screen sections are missing or punched through. In Woodland Hills, birds and the occasional acorn-heavy squirrel chew and pry at screen edges. A torn screen stops blocking embers and welcomes nesting material into the flue.
- The cap is visibly crooked or shifted on the flue. This usually means the mounting band has stretched or a bolt corroded. A tipped cap lets rain in sideways during a hard storm and is far more likely to part ways with the chimney in high wind.
- You hear scratching above the damper or smell something that reminds you of a barn. A failed screen means open access for starlings and squirrels. By the time you hear them, there’s often nesting material packed around the flue opening.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
A Gelco chimney cap replacement in Woodland Hills usually lands between $340 and $620, installed. The range comes down to cap material (painted steel is less than stainless, and stainless is less than copper), the size of your flue tile, and whether the existing mounting surface needs any prep work before the new cap seats properly.
What’s included in our price: the cap or mounting hardware itself, removal of the failed cap, inspection of the flue tile and crown for damage the cap was hiding, sealing around the new mount, and photo documentation of everything before and after. We hand you a written price before we pick up a ladder, not after. If we find crown cracking that the old cap was hiding, we’ll show you a camera photo on the spot and give you a separate number for that repair, with no pressure to do it the same day unless it’s actively unsafe.

Every Gelco cap we install is backed by our 365-Day Done Right Promise, a written guarantee on every repair, and a free second visit if the repair fails. That’s not a sticker on a truck. It’s a certificate you’ll have in your inbox before the tech leaves your driveway.
DIY or Call Us?
Replacing a chimney cap sounds simple, and the parts themselves are straightforward, but the work happens on a roof, around a flue that can still be hot, and often near a tile crown that doesn’t appreciate a misstep. We’ve taken over a few DIY attempts in Woodland Hills where the band was tightened just enough to hold on a calm day, then a December rainstorm found its way around the mount. If the cap is the only problem and you’re comfortable working on a roof at the flue line, installing a replacement is a plausible Saturday project. But if the flue tile surface is uneven, the old mount is seized, or you have any doubt about the crown condition underneath, we’d rather see you on the phone than on the roof.
Our techs are background-checked and uniformed, we send you a live arrival window, and you’ll see photos of the cap we removed and the one we installed before you pay. If you’d rather not climb at all, call (559) 249-1347 and we’ll handle it. A live person answers, 24/7.
FAQs
Expect 8 to 12 years from a painted steel Gelco cap in our climate, and 15 to 20 from stainless. Copper holds up the longest, but the spark screen on any Gelco usually needs replacement before the hood does. We see sun and winter rain degrade steel caps faster than anything else in the San Fernando Valley, especially on south-facing flues.
Sometimes. If the cap body is intact and only the spark screen has torn through, a screen replacement can often be done for less than a full cap swap. If the hood has rusted through at the seams or the mounting band is compromised, a replacement is the honest call. We’ll show you photos of the damage before we recommend anything.
Most single-flue Gelco cap installations take 45 to 90 minutes from ladder up to ladder down. If the flue tile needs prep, or we discover crown work, it can push longer, but we’ll tell you that before the install starts. You’ll have a written price before any work begins, and a digital invoice you can pay from your phone.
Yes. Our crews run with Gelco-compatible caps, spark screens, and stainless mounting hardware in the most common flue tile sizes for Woodland Hills homes. If you have an odd size, we’ll order the correct part and schedule the return before we leave. Call (559) 249-1347 for an exact quote and to check availability for your flue.
Written by Cory Mitchell, Owner & Lead Chimney Technician, Hadley Chimney Woodland Hills at Hadley Chimney Woodland Hills, serving Woodland Hills and nearby areas.
Need a Gelco cap matched and installed correctly the first time? Call (559) 249-1347 for a free estimate. A live person answers 24/7, and you’ll get a written price before we start.