CSLB #1026692 · Class B · Licensed since 2017
Decks and outdoor structures built for the East Bay hills and Lamorinda.
Built Once, Built Right, Built to last
Aron Ambrus Construction builds and repairs decks, pergolas, patio covers, retaining walls and siding. Based in Brentwood, working across the hills and the Tri-Valley.
We respond to every estimate request within 24 hours. Estimates are free on every project. Design, drawings and engineering are billed separately.
Where we work
We describe the service area in drive times rather than in miles, because in this part of the Bay Area a map is misleading — Mount Diablo, the Caldecott Tunnel and the bridges mean two towns the same distance apart on paper can be half an hour apart in practice. Blackhawk is fourteen miles from our base in a straight line and closer to an hour by road, because the mountain is in between.
What that means practically: we schedule estimate visits by area rather than promising to drop by, we respond to every request within 24 hours, and we are honest about which towns are an ordinary week and which are a planned trip.
What we build
Fifteen services. Each links to its own page.
Deck Building
New decks built to the current ledger rule.
Deck Repair & Dry Rot Repair
Rot cut out, framing replaced, ledger re-bolted.
Deck Railings & Guards
Guards 42 in. high, handrails 34–38 in., 4-in. sphere rule.
Composite Decking
Low-maintenance composite, ledger bolted.
Hillside & Elevated Decks
Outside the prescriptive tables — engineered by default.
Covered Decks & Roof Structures Over Decks
A roof adds load the open-deck tables don't count.
Multi-Level Decks & Hot Tub Decks
Low-maintenance composite, ledger bolted.
Hardwood Decking — Ipe, Cumaru and Batu
Tropical hardwood, supplier-specific fire listings.
Pergolas
Open shade structures sized for span and wind.
The ledger is the part that matters
The deck ledger is the board that fastens the deck to the house. According to the American Wood Council, one of the primary reasons for deck collapses is the failure of nail-only connections between the deck and the primary structure. Collapses most often result from ledgers built with nails instead of properly installed bolts. Decks have collapsed this way with as few as one or two occupants present.
Since 2009, every edition of the International Residential Code has required half-inch bolts or lag screws for this connection. So a deck built before 2009 — or built without a permit since — may be nail-only.
Service areas
Drive times, not miles. We schedule estimate visits by area and respond to every request within 24 hours.
Regular territory
Towns we work in as an ordinary week. We schedule estimate visits by area and respond to every request within 24 hours.
Walnut Creek
Pleasant Hill
Concord
Martinez
Alamo
Danville
Livermore
Pleasanton
The hills
Lamorinda, the East Bay hills and the Tri-Valley. These are scheduled estimate visits, not a drop-by.
Orinda
Lafayette
Moraga
Piedmont
Oakland hills and Montclair
Berkele
Oakland
Alameda
San Ramon
Blackhawk
Castro Valley
Pinole
By arrangement — project work
Scheduled project work rather than an everyday service area. We review photos, measurements and plans before travelling, and a site visit is scheduled once the job is real.
San Mateo
San Carlos
Redwood City
Atherton
Mountain View
Testmonials
216 W Country Club Dr, Brentwood, CA 94513
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