Structural Repair
- Joist, beam, and rim replacement
- Ledger board reinforcement and re-flashing
- Connection hardware upgrades
- Support post and deck footing reconstruction
★ 1,000+ Inspections
15+ Years
CSLB #1060736
NADRA · CREIA
24h Response
San Mateo, CA — Deck & Balcony Inspections
San Mateo County · SB 721 & SB 326 specialists
Licensed deck inspections and SB 721 / SB 326 compliance for San Mateo apartment owners, condo HOA boards, and property managers across one of the Peninsula's deepest multifamily markets. From Downtown San Mateo and Central to San Mateo Park, Hayward Park, Shoreview, Bay Meadows, Hillsdale, Sugarloaf, and the El Camino Real and Norfolk Street corridors — we deliver deck inspection reports signed by a certified deck inspector and ready to hand to your HOA archive, insurer, or lender.
- SB 721 Inspections
- SB 326 Inspections
- Repair & Reconstruction
- Waterproofing
What We Do
Inspection & Repair Services in San Mateo
Inspection, compliance, repair, and reconstruction for San Mateo apartment owners, HOA boards, and property managers — handled end‑to‑end by one licensed team.
Waterproofing
- Walkable deck membrane systems
- Flashing detail correction
- Drain, scupper, and threshold rework
- Sealant and caulking refresh
Compliance
- SB 721 reports for San Mateo apartment buildings (3+ units)
- SB 326 reports for condominium HOAs
- City of San Mateo deck permit submittals
- Engineer-signed final compliance letters
Safety Inspections
- Load-bearing assessment
- Moisture probes & infrared scanning
- Railing and guardrail load testing
- Deck footing inspection and flashing integrity checks
Free Compliance Check
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Construction Types
We Work With Every Type of San Mateo Deck & Balcony
Wood Decks
Redwood and pressure-treated framing dominate San Mateo's older apartment stock built between the 1950s and the late 1970s — particularly across Central, Hayward Park, North Central, and along El Camino Real, Norfolk Street, and South B Street. A meaningful share of this inventory predates modern flashing standards entirely. We know which deck building eras used face-nailed ledgers versus early proprietary hangers, and where hidden rot collects under otherwise clean-looking finish boards in a marine-influenced Peninsula climate.
Concrete Balconies
Mid-rise condo and apartment projects around Downtown San Mateo, the Hillsdale corridor, and the Bay Meadows transit district use suspended concrete balconies with topical waterproof membranes. Spalling at drip edges, flashing pullback at jamb tie-ins, and drain outlet corrosion are the three repeat issues our deck inspector team targets during every walkthrough — with additional attention to podium-level transitions on the Bay Meadows and Downtown stock, where one membrane failure reaches multiple units below.
Composite Decks
The post-2010 Bay Meadows buildouts and newer Hillsdale-area developments have shifted to composite boards over conventional framing. The cover hides the actual condition of the joists and ledger underneath, so our home inspection deck protocol always includes lifting boards at the ledger and outer bays rather than relying on a surface-only inspection.
Not sure what your San Mateo property needs?
A 30-minute on-site walkthrough tells you exactly what's required.
Local Expertise
Why San Mateo, Specifically
San Mateo has one of the oldest multifamily building stocks
on the Peninsula — a large share of its apartment inventory dates to
the 1950s and 1960s and remains in continuous service, much of it under
the city's rent stabilization ordinance. The balcony and deck inventory
falls into three clear generations: pre-1980 apartment buildings across
Central, Hayward Park, North Central, and the El Camino Real and Norfolk
Street corridors; 1980s–2000s condo and townhome communities across
Shoreview, Sugarloaf, and the Hillsdale area; and the post-2010 Bay
Meadows transit-oriented district now entering its first compliance
cycles. Each generation carries its own obligations under the california
balcony inspection law and its own repeat failure points.
Our field team covers San Mateo from the Burlingame line
through Downtown and Hillsdale to the Foster City and Belmont
boundaries, including the bayfront Shoreview area. When an owner or
property manager searches for a deck inspection near me, we already know
the original builder, the era's standard flashing detail, the
tenant-notice requirements attached to rent-stabilized inventory, and
the marine-exposure conditions on the bayfront side — which means
shorter assessments, cleaner scopes, and faster california deck
inspections from first visit to final compliance letter.
Neighborhoods & corridors we cover
- Downtown San Mateo
- Central
- North Central
- Hayward Park
- San Mateo Park
- Shoreview
- Bay Meadows
- Hillsdale
- Sugarloaf
- Baywood
- Aragon
- Fiesta Gardens
- Laurelwood
- El Camino Real corridor
- Norfolk Street corridor
- South B Street corridor
- Third Avenue
- Hillsdale Boulevard
- East Hillsdale Boulevard
Climate Note
San Mateo sits between the Bay shoreline and the Peninsula ridge, producing an exposure split across a compact city. Bayfront properties in Shoreview, Fiesta Gardens, and the eastern Hillsdale area take salt-laden marine air that accelerates hardware corrosion; western properties toward San Mateo Park, Baywood, and the ridge side sit in the fog belt with sustained humidity and slower drying. Neither side gets the dry-summer relief that inland markets do, which means assemblies here stay damp longer and hardware corrodes faster than construction-era specifications assumed.
Common Problems
What We See Most Often in San Mateo
Issues that repeat across the local building stock — from climate, construction era, or common materials in this area.
Dry rot in 1950s–70s ledger assemblies
A large share of San Mateo's apartment inventory dates to construction eras that predate modern flashing standards entirely, using face-nailed ledgers with minimal or no weatherproofing detail. Combined with fog-belt humidity that keeps assemblies damp with limited drying, water tracks behind the finish and rots joist ends from the inside. With much of this stock now 60–70 years old, it's the single most common finding in every deck inspection report we deliver in San Mateo.
Marine-driven hardware corrosion on bayfront properties
Salt-laden air reaching Shoreview, Fiesta Gardens, and the eastern Hillsdale corridor corrodes joist hangers, lag bolts, and post bases faster than the ridge side of the city. A proper deck footing inspection regularly uncovers hardware that looks intact from below but has meaningful section loss on close examination. We spec stainless or hot-dip galvanized matched to the exposure zone.
Fog-belt moisture retention on western properties
San Mateo Park, Baywood, and the ridge-side neighborhoods sit in sustained fog with slow drying cycles. Membrane systems and sealant here don't get the dry-out periods that inland assemblies do, which shortens functional service life and lets minor flashing gaps admit water repeatedly with little evaporation between events.
Tenant-notice complexity on rent-stabilized properties
San Mateo's rent stabilization ordinance carries tenant protection and notice requirements affecting how and when unit access can be scheduled for inspection and repair. A crew that hasn't planned notice timing against those requirements will stall mid-project and cost the owner a second mobilization. We build the access and notice plan into the scope at the assessment stage.
Railings below current code height
A large share of San Mateo condo and apartment balconies — particularly on the pre-1980 stock — carry 36" guardrails or lower where 42" is now required. We flag these during the walk and raise/reinforce them under the same scope of work rather than splitting the project across two contractors.
Who We Serve
Property Types We Work With
Apartment Buildings
SB 721 inspections for San Mateo apartment complexes on the 6-year cycle — across Central, North Central, Hayward Park, and the El Camino Real, Norfolk Street, and South B Street corridors. Tenant access coordination and notice planning handled with attention to rent-stabilization requirements, plus full written reporting end-to-end. Given the depth and age of the rental stock here, this is the dominant scope of work in San Mateo.
Condominiums
SB 326 inspections for condo associations across Shoreview, Sugarloaf, Hillsdale, Bay Meadows, and the downtown mid-rise stock on the 9-year cycle. Engineer signature included on every letter, with statistical sampling scoped to satisfy Civil Code Section 5551. When owners search for a condo inspection near me, our field team is usually already working on a nearby property.
HOA Communities
Board-ready reporting, deck permit filings, and a final compliance letter formatted for HOA archives, lender reviews, and insurance carriers — with the marine-exposure documentation Peninsula carriers routinely request. We also provide a clean condo checklist inspection format usable for both compliance filings and reserve-study documentation.
Multi-Family Housing
Garden-style apartments, townhomes, fourplexes, mid-rise apartment communities, and mixed-use transit-oriented multifamily stock across greater San Mateo.
Schedule a free on-site assessment
Serving all of San Mateo with fast response times. Most assessments within 3 business days.
What You Get
Project Deliverables
After the work is complete, you walk away with a full archive package — ready for your HOA board, insurer, city, or next property sale.
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Photo Journal
Before, during, and after photos tagged to every structural element inspected.
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City Permits & Acceptance
Full permit package, inspection card sign-offs, and city correspondence archived.
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Material & Workmanship Warranties
Manufacturer warranties plus our labor guarantee in writing.
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Work Summary Report
Detailed scope-of-work summary covering every repair and reinforcement.
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Final Compliance Letter
Engineer-signed SB 721 / SB 326 letter for your HOA archive, insurance, and lender.
For San Mateo projects we also include San Mateo County permit references and, where relevant, bayfront marine-exposure appendix sheets for Shoreview and Fiesta Gardens properties, plus age-of-construction baseline documentation on pre-1970 buildings where original records are no longer available.
How It Works
Our 5-Step Process
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01
Initial Assessment
We walk the property, identify scope, and flag any urgent safety items. No cost, no obligation.
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02
Detailed Scope & Estimate
Full proposal with line-item pricing, material specs, and a realistic timeline.
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03
Permits & Scheduling
We handle city permits and coordinate tenant notices with property management.
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04
Execution
One licensed crew, start to finish. Daily photo updates and clean worksites.
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05
Final Inspection & Handoff
City sign-off, warranty package, and compliance letter delivered to you.
Proof
Trusted by Property Managers in San Mateo
Our building on Norfolk is from 1958 and rent-stabilized — two things that had scared off the last two contractors we called. ABD planned the notice sequence properly, scoped the ledger repairs honestly instead of low-balling the inspection, and finished without a single tenant complaint or change order.
ABD handled SB 326 for our Shoreview association. The hardware section loss they documented on the bay-facing units wasn't visible from the walkway at all — that finding is what justified the repair budget to our board before it turned into a safety problem.
- CSLB #1060736CA Licensed Contractor
- NADRADeck Industry Association
- CREIAReal Estate Inspectors
- $1M+ InsuredGeneral & Workers' Comp
FAQ
Questions from San Mateo Property Owners
Does San Mateo require a separate city permit for deck or balcony repair?
San Mateo follows the California Building Code through the City of San Mateo Community Development Department. Structural repairs that replace more than 25% of a deck or balcony assembly require a deck permit. We file the submittal, track the inspection card, and close out the permit as part of every project scope so property owners don't have to chase the paperwork.
My property is rent-stabilized — how does that affect scheduling the inspection?
It affects notice timing and access sequencing rather than the inspection scope itself. San Mateo's rent stabilization ordinance carries tenant protection and notice requirements that determine how far ahead unit access has to be noticed and how repair work affecting habitability is handled. A crew that treats a rent-stabilized building like an unregulated one will stall partway through and cost the owner a second mobilization. We plan the notice and access sequence with your management team before mobilizing and document the access log in the final deliverable package.
My building is from the 1950s — should I expect the repair scope to be much larger than the inspection?
On San Mateo's pre-1970 stock, usually yes. Buildings 60–70 years old with original ledger detailing, original hardware, and decades of Peninsula fog and marine exposure almost always need structural repair beyond the inspection scope. We scope the likely repair range during the free assessment rather than after the report lands, so the budget conversation happens before work starts. Because we handle both the inspection and the repair in-house, there are no change orders and no gap between contractors disputing findings.
Nearby
Other Cities We Serve Near San Mateo
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Get Started
Book a Free Assessment in San Mateo
Tell us about your property and we'll come out, walk it, and give you a written plan — free of charge, no obligation.
- 916-269-5277
- Info@abdteam.com
- 191 Lathrop Way, Suite N, Sacramento, CA 95815
- CSLB #1060736