Union City · CA
Chimney sweep and repair in Union City
Two merged towns, Alvarado and Decoto, along the Hayward Fault.
No obligation. Call and we’ll confirm when we can come by.
The short answer
Union City formed in 1959 from the merger of the older towns of Alvarado and Decoto, and its chimney stock reflects that combined history, some genuinely old construction near each original town center, and postwar-through-1980s tract housing filling in the rest as the merged city grew around the BART corridor. Nation Wide Chimney Sweep & Repair scopes a Union City call the same as any mixed-age neighborhood: an inspection tells us more than the house’s decade alone.
Local specifics
What is true about Union City
- 01
Union City incorporated in 1959 by merging the previously separate towns of Alvarado and Decoto, and both original town centers retain older residential blocks distinct from the tract housing that later filled the space between them.
- 02
The city sits along the Hayward Fault, which runs through the eastern hills of southern Alameda County, making a seismic-bracing check a standard part of any inspection on Union City’s older unreinforced masonry.
- 03
Union City’s growth accelerated after BART service arrived in 1970 near the current Union City station, drawing new residential development that added to the postwar tract stock already filling in around Alvarado and Decoto.
Housing stock
What the housing stock means for the chimney work
Union City’s oldest chimney stock sits in the original Alvarado and Decoto town centers, brick construction old enough to need mortar, crown and seismic-bracing attention. The postwar and BART-era tract housing that fills the rest of the city, built mainly from the 1960s through the 1980s, runs more typical brick-and-metal-flue or factory-built construction with wear proportional to that later era.
Neighbourhoods: Alvarado · Decoto · Union Landing area
Approximate coverage, and call to confirm a specific address.
Services here
What we do in Union City
Reviews
What the last 47 customers actually said
5.0
47 Google reviewscounted 2026-08-26
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Kiara Harper
We recently purchased a 1920s Tudor and sought a Level 2 NFPA 211 examination. The tech didn't simply sweep he crawled into the attic to verify clearances against the roof framework, and documented everything in a crystal clear …
Tyler Warren
I was concerned about insurance requirements for the chimney. They performed a detailed inspection, provided a professional report with photos and video, cleaned the system, and made the small repairs needed. …
Jaxon Wells
The damper on our masonry fireplace became hard to open and close. During the service they lubricated the linkage, replaced the worn rope seal, adjusted the fit for tighter closure, cleaned the throat area, and polished the glass …
Maria Lear
Completed the full chimney cleaning today. Inspection revealed creosote glaze and some lint from the surrounding area. …
Questions
What people ask about Union City
Are Alvarado and Decoto’s chimneys older than the rest of Union City?
Generally, yes: both original town centers carry older residential stock than the postwar and later tract housing that filled in the city after its 1959 merger.
Does the Hayward Fault affect chimney inspections in Union City?
It is a real factor; the fault runs through southern Alameda County’s eastern hills, so we check seismic bracing on older unreinforced masonry as standard practice here.
Do you serve areas near the BART station too?
Yes, every Union City neighborhood sits inside our twenty-mile radius from Sunnyvale.
How do I book a chimney inspection in Union City?
Call or use the contact form and tell us which part of the city (Alvarado, Decoto or elsewhere) and what you have noticed.
Book a visit in Union City
Tell us what you have noticed, and we will confirm the right service.
Or call (888) 698-8416. We’ll confirm when we can help.