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 Sunnyvale, CA
Chimney repair in Sunnyvale usually means one of two things: a mid-century masonry chimney that’s never been relined, or a chimney cap that’s rusted through after decades of Bay Area fog and sun. We’re Chimney Sweep Berryessa, and we’ve served Sunnyvale since 2013. Our technicians work on the original fireplace assemblies in the 94086 and 94087 ranch tracts every week, and we know which problems show up in Eichler post-and-beam homes versus the 1950s builds. Call (877) 610-3049 when you need someone who can diagnose and fix the problem, not just sweep around it.
Why Sunnyvale Homes Are Different
Sunnyvale’s original Eichler and early-1950s-60s ranch tracts, especially in 94086 and 94087, were built with wood-burning fireplaces and, in some cases, mid-century heatalator-style or masonry chimneys that are now 60 to 70 years old. But because Sunnyvale winters are mild and most homeowners rarely burn, these flues sit unused for years, building up creosote and animal nests without the drying heat that would reveal problems. That makes inspection-only calls unusually common here compared to cold-weather markets. A homeowner in Santa Clara or Mountain View might burn every winter night and notice a draw problem immediately. In Sunnyvale, the fireplace can go untouched from one Thanksgiving to the next, so a cracked flue tile or a bird nest hides until someone lights a fire and the living room fills with smoke.
The housing stock across 94085, 94086, and 94087 is predominantly post-war and mid-century single-family tract homes. Many still have their original fireplace and chimney assemblies and those assemblies have never been relined. The 94089 and 94085 corridor has newer high-density townhomes, and many of those have no real chimney at all, just a direct-vent gas unit or nothing. That split shapes what we do here. The older tracts need structural chimney work. The newer townhome areas are where we do more dryer vent cleaning and direct-vent inspections.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Our Main Sunnyvale Services
Most Sunnyvale homeowners call us about these two services first, usually because a fireplace hasn’t been used in a year or more and something isn’t right when they finally light it. Here’s what each job involves in Sunnyvale specifically.
Chimney Sweep in Sunnyvale
A chimney sweep in Sunnyvale is less about heavy creosote removal and more about clearing what moved in while the flue sat idle. Sunnyvale’s mild Mediterranean climate means fireplaces get used sparingly and for ambiance rather than heat, so creosote stays glazed. The real issue is chimney swifts and birds nesting in uncapped flues. We’ll remove nests, clear debris, and inspect the flue condition while we’re in there. For details on what a full sweep includes and what it costs here, see our Chimney Sweep in Sunnyvale page.

Dryer Vent Cleaning in Sunnyvale
Dryer vent cleaning gets overlooked in Sunnyvale because it’s not a seasonal chore people think about. But the NFPA cites failure to clean dryer vents as a leading cause of dryer fires, and lint builds up regardless of how mild the weather is. Homes in the 94089 and 94085 corridor with stacked laundry closets often have long, cramped vent runs that clog faster than basement laundry rooms in older houses. We clean the full run and check the termination point. See our Dryer Vent Cleaning in Sunnyvale page for scope and pricing specific to this area.

Chimney Repair in Sunnyvale
Chimney repair in Sunnyvale almost always traces back to two things: decades of disuse and original 1950s-to-1970s materials that were never updated. A masonry chimney on a ranch house in 94087 has sat through sixty Bay Area winters without much heat cycling, so the problems aren’t always visible from the ground. Cracked flue tiles, rusted-out caps, failed flashing, and spalled crowns are what we find once we get on the roof or run a camera up the flue. Because we handle Chimney Repair in addition to sweeping, the same technician who finds the issue can quote and fix it, no referral runaround.
Chimney Cap Installation
Signs you need it
You hear birds or scratching in the flue, or you find nesting debris on the smoke shelf during a sweep.
What it costs in Sunnyvale
Chimney cap installation in Sunnyvale typically runs $300 to $600 depending on the flue size and material.
How we do it
We measure the flue, set a stainless steel or copper cap with a proper screen, and secure it to the crown so birds and rain stay out.
Chimney Liner Installation
Signs you need it
Your chimney has cracked clay tiles, missing mortar joints, or was built before modern liner standards.
What it costs in Sunnyvale
Chimney liner installation in Sunnyvale typically ranges from $1,800 to $4,500 depending on the liner system, flue height, and access.
How we do it
We assess the existing flue, size a DuraFlex stainless liner or HeatShield resurfacing system to code, and install it through the existing chase or chimney.
Chimney Flashing Repair
Signs you need it
You see water stains on the ceiling near the fireplace or rust streaks where the chimney meets the roofline.
What it costs in Sunnyvale
Chimney flashing repair in Sunnyvale runs $250 to $950 depending on whether we’re resealing one section or replacing the full base and step flashing.
How we do it
We lift the shingles, replace or reseal the flashing layers, and tool fresh sealant so water runs off the roofline instead of into the chase.
Chimney Crown Repair
Signs you need it
The concrete crown is cracked, spalled, or missing pieces, and water is getting into the masonry below.
What it costs in Sunnyvale
Chimney crown repair in Sunnyvale typically costs $500 to $1,300 depending on crown condition and whether we need to rebuild it from scratch.
How we do it
We chip out the deteriorated crown, form a new one with proper overhang and drip edge, and finish with a waterproof sealant so water can’t soak into the brick.
What Chimney Repair Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Chimney cap installation | $300 – $600 |
| Chimney flashing repair | $250 – $950 |
| Chimney crown repair | $500 – $1,300 |
| Chimney liner installation | $1,800 – $4,500 |
How Much Does a Chimney Liner Replacement Cost in Sunnyvale?
Chimney liner replacement in Sunnyvale typically costs between $1,800 and $4,500. The range depends on flue height, whether the old liner needs full removal, and whether we use a DuraFlex stainless system or HeatShield resurfacing.
Do Sunnyvale Homes Need Permits for Chimney Repair?
Most chimney cap, crown, and flashing repairs in Sunnyvale don’t require a city permit, but liner installations can. We’ll tell you before work starts if a permit is needed for your specific job, and we handle the paperwork when it is.
Brands We Service in Sunnyvale
We stock and install DuraFlex stainless liner systems, HeatShield resurfacing materials, and Olympia Chimney caps and dampers. Having these components on the truck means we can often quote and complete a repair in the same visit. See our brands for the full list.
See the difference
Before
After
Before
After
Before
AfterPricing for Chimney Company in Sunnyvale, CA
| Service | Typical range in Sunnyvale |
|---|---|
| Chimney sweep | $180 – $340 |
| Dryer vent cleaning | $90 – $180 |
| Chimney cap installation | $300 – $600 |
| Chimney cap replacement | $350 – $700 |
| Chimney flashing repair | $250 – $950 |
| Chimney crown repair | $500 – $1,300 |
| Chimney liner installation | $1,800 – $4,500 |
Prices in Sunnyvale run slightly higher on older ranch homes in 94086 and 94087 because the chimneys are taller, the crowns are wider, and the original flashing is often cemented under two layers of roofing. You’ll get a flat price before we start, so the number on the quote is the number on the invoice.
Neighborhoods We Serve in Sunnyvale
We work throughout Sunnyvale, from the Eichler clusters in the mid-century core to the ranch tracts that spread across the 94085, 94086, and 94087 ZIP codes. Most Sunnyvale jobs are within a 20 to 30 minute drive from our Berryessa shop.
- Washington Park
- Ortega Park
- Cherry Chase
- Lakewood Village
- Heritage District
Service Area – Cities Near Sunnyvale
We also serve the surrounding cities, including Mountain View, CA, Santa Clara, CA, Loyola, CA, and Alviso, CA. If you’re just across the Sunnyvale line in any of these areas, we can usually bundle your visit with other nearby calls that same week.
Serving Sunnyvale, CA – Our Local Coverage Area
We’re based in the Sunnyvale 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 About Chimney Company in Sunnyvale
Most Sunnyvale inspections can be scheduled within one to two weeks. If you’re dealing with a smoking fireplace or water actively leaking into the house, call (877) 610-3049 and we’ll let you know if we can move faster.
Inspection-only calls are common in Sunnyvale because so many fireplaces sit unused. We’ll run a camera up the flue, check the cap and crown, and give you photos. If everything is clean and intact, that’s all you pay for.
Some Sunnyvale neighborhoods have HOAs that require approval for exterior chimney changes like caps or crowns. We can provide photos and a scope description to help you get approval, but the application is usually yours to file.
If your chimney hasn’t been looked at in years, or you lit the first November fire and the house filled with smoke, call (877) 610-3049 for a free estimate. We’ll tell you what we find and fix what needs fixing.
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 Sunnyvale Customers Say
"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."
- Rafael Castillo"Level two inspection before we bought the house. The report was detailed enough to use as a negotiating point and he explained every photo in it."
- Ruben Delgado"Thorough sweep and a clear report. He was running late from the job before and arrived near the end of the window, though he did call to warn me."
- Amit Shah