Deck & Balcony Stairs · CSLB #1060736
Commercial Deck & Balcony Stairs in California
We’re CSLB-licensed stair builders working across the Bay Area, Central Valley, and Sacramento — deck building, stairs, landings and handrails for apartment communities, condominiums, HOAs, and hotels. On a multifamily building a stair is not an accessory to the deck. It is usually the only way into the units above it, which changes what a finding on it means and how fast it has to be dealt with.
- CSLB #1060736 Licensed California contractor
- 9+ yrs Building commercial stairs & landings
- Route stays open Runs rebuilt in sequence, residents in place
- Commercial & HOA Apartments, condominiums, HOAs & hotels
Where to start
Stairs by Structure
Stair runs serving a balcony and stairs serving a deck share the code, not the connection at the top.
CSLB #1060736SB 721 / SB 326 documentedCommercial, multifamily & HOA
01 Why it matters
You can close a balcony. You cannot close a stair.
When an inspection flags a balcony, there is a temporary answer: lock the door, post a notice, and the unit stays habitable while the repair gets scheduled. When it flags a stair, that answer doesn’t exist. On most apartment buildings the stair is the only route to the front doors above it, so taking it out of service means taking the units out of service. That single difference is why a stair finding carries an urgency a balcony finding doesn’t, and why the schedule matters as much as the scope.
It also changes how the work has to be done. A stair replacement on an occupied building is a sequencing problem before it’s a carpentry one — temporary access, phasing that keeps residents reaching their doors, and enough of the run standing at any moment for people to use. Contractors who quote a stair like a deck section quote the carpentry and discover the rest.
The structural side is simpler and just as consistent. Exterior stairs fail from the bottom, because that’s where the stringer ends sit closest to the ground and where the end grain drinks whatever reaches it. A stringer landing on soil, or on a pad that ponds, has a countdown running from the day it was built. Stairs land on concrete, clear of standing water, on metal bases — or they don’t last.
A flagged balcony gets a notice on the door. A flagged stair means nobody can reach the door at all.
02 The D&B difference
What deck building, stairs and landings properly involve
We treat access as part of the scope, and the bottom of the stringer as the part that decides the life of the run.
The route stays open
Phasing, temporary access, and sequencing planned before work starts, so residents keep a way to their front doors throughout. On a stair that isn’t a courtesy, it’s the constraint the whole programme is built around.
Stringers land on concrete, not on dirt
Exterior stairs rot from the bottom up, at the end grain where the stringer meets the ground. Pads, metal bases, and drainage that moves water away are what separates a stair that lasts from one that’s rebuilt twice.
Geometry consistent, handrails graspable
Risers and treads uniform along the whole run, because people count the first step and then stop looking. Handrails you can close a hand around rather than a flat board you can only rest one on — which is the difference cited most often after a fall.
03 · Service Areas
Where We Work in California
Every city links to a dedicated local page — crews, recent projects and compliance details for that area.
Sacramento Metro
11 cities
East Bay
18 cities
Don’t see your city? We likely still cover it — call (916) 848-2728.
04 How a project runs
How a stair project runs with us
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01
Assessment
Stringer ends, landings, connections at top and bottom, and the guardrail and handrail checked against current requirements, with probe testing where the timber meets grade.
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02
Access plan
How residents reach their doors while the run is out, agreed before anything is quoted. On occupied buildings this shapes the programme more than the carpentry does.
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03
Scope & estimate
Written scope covering repair, partial rebuild, or full replacement, with the access provisions priced rather than assumed.
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04
Permitting & engineering
Stamped engineering where the run, the landings, or the connections require it, plus permits where the scope calls for them.
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05
Build
Stringers cut and set, landings framed, treads and risers installed to consistent geometry, stringer bases landed on concrete clear of grade.
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06
Guardrails & handrails
Guardrails to current height and opening requirements, and graspable handrails with extensions at the ends.
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07
Handover
Documentation and photographs of the connections, plus compliance file material on commercial property.
05 Scope
What we build and repair
Complete exterior stair work for decks and balconies — new deck building, stairs on existing structures, and full runs replaced — from one CSLB-licensed crew.
- Assessment of stringers, landings, connections, guardrails, and handrails
- Access and phasing plan for occupied buildings
- New stair construction for decks, balconies, and elevated walkways
- Full stair replacement where the run is past repair
- Stringer replacement and repair, including rot at the base
- Landings and intermediate platforms framed and flashed
- Treads and risers in timber, composite, or Trex
- Consistent riser height and tread depth across the whole run
- Concrete pads and metal bases keeping stringer ends clear of grade
- Drainage at the stair base so water leaves rather than collects
- Connections at the top of the run flashed and fastened to current code
- Guardrails to current height and opening requirements
- Graspable handrails with extensions at both ends
- Non-slip surfacing and coatings where required
- SB 721 and SB 326 post-inspection stair repair programmes
- As-built documentation for the compliance file
Built to current code: stair rise, run, and landing requirements · graspable handrail requirements · 42″ / 4″ guardrail standard on commercial and multifamily property · CBC connection provisions
06 Investment
What stairs cost
The cost of building deck stairs is quoted after an assessment, and a stair builder who has priced a hundred of them will still want to see the base of the stringers before writing a number.
What drives the number
- Rise from grade to the landing, which sets the number of treads and the run length
- Whether the stair is straight or turns, since landings add framing and footings
- Stringer condition where the run meets the ground, and whether pads have to be poured
- Guardrail and handrail length, which on a long run is a substantial line
- Tread material — timber, composite, or Trex
- Access and phasing on occupied buildings, which is real cost rather than goodwill
- Number of runs, since a programme across a property prices better than one stair at a time
- Permits and engineering where the scope requires them
Why stairs cost more per square foot than decks: almost everything about a stair is priced by length and count rather than by area. Every tread is a cut, every riser is a piece, the guardrail runs the whole diagonal, and the handrail runs it again. A stair with the footprint of a small deck contains several times the work — which is why stair quotes surprise people who were comparing them to decking rates.
Final pricing follows an on-site assessment. Request a free estimate — no obligation.
In the field
Stair detail
Stringers, landings and the bottom of the run, where exterior stairs actually fail.
07 Project example
A recent stair project
An inspection flagged the exterior stairs across a building — soft stringers at the base, risers that had settled unevenly, and handrails that were flat boards rather than anything a hand could close around. The property manager’s first question wasn’t about cost. It was what residents upstairs would do while the stairs were gone. That question set the programme: runs were rebuilt one at a time with temporary access in place, so no unit was ever without a route to its front door. Stringers came out and went back landing on new concrete pads clear of grade, risers were set to consistent geometry along the full run, and graspable handrails replaced the boards with extensions at both ends.
Every other bid priced the carpentry. The only question that mattered was how our residents get home while you’re doing it. Regional Property Manager · California apartment community
08 Case studies
Recent Projects, Documented
Real commercial properties — what the building needed, what we did, and what it delivered.
Deck RepairTrex Stair Replacement — Apartment Community, Elk GroveThe paint had not failed evenly. It held on the risers and gave out on the treads, worst…View case study 
Deck RepairTrex Stair & Balcony Installation — Apartment Building, OaklandFrom the patio the stair looked like one well-kept assembly. From underneath it was an open wood frame…View case study 
Deck RepairTrex Deck, Walkway & Stair Replacement — 12-Unit Apartment Community, Menlo ParkResidents walked the same tired wood the whole way from the parking lot to their front door —…View case study 
WaterproofingBalcony & Exterior Stair Waterproofing — 32-Unit Multifamily Community, SacramentoThe rot wasn't out at the edge — it was where the deck met the wall. We stripped…View case study 09 Client feedback
What property managers say
They planned the access before they planned the carpentry. Nobody upstairs was ever without a way to their door.
The old handrail was a flat board — you could rest a hand on it but you couldn’t hold it. That one detail is why we replaced the whole run.
The stringers had been sitting straight on dirt since the building went up. New pads, and that’s the reason this set will outlast the last one twice over.
10 FAQ
Stair questions
Why are stairs treated as more urgent than balconies?
Because a balcony can be taken out of service and a stair usually can’t. Locking a balcony door and posting a notice keeps a unit habitable while a repair is scheduled. Removing a stair removes the only route to the front doors above it. That’s why a stair finding on an inspection report should move to the top of the list, and why the first question on any stair quote should be about access rather than price.
Can you rebuild stairs while residents are living there?
Yes, and it’s most of what we do. Runs are rebuilt in sequence with temporary access arranged, so every unit keeps a route to its door throughout. That planning is priced as part of the job rather than assumed, because it genuinely costs time — and because a programme that ignores it stalls the moment residents can’t get home.
Where do exterior stairs usually fail?
At the bottom. The stringer ends sit closest to the ground, and end grain absorbs whatever reaches it — soil contact, splash, or a pad that ponds. Decay starts there and works up the stringer, often while the treads still look sound. Landing the stringers on concrete, clear of standing water and on metal bases, is what separates a stair that lasts from one that gets rebuilt twice.
What does it cost to build deck stairs?
More per square foot than decking, which surprises people comparing the two. Almost everything on a stair is priced by length and count rather than area: every tread is a cut, every riser a piece, the guardrail runs the full diagonal and the handrail runs it again. The cost of building stairs is driven by the rise, the number of treads, whether the run turns, guardrail length, and the access arrangements on an occupied building.
Why does riser height have to be consistent?
Because people count the first step and then stop looking. Once the rhythm is set, a riser even slightly taller or shorter than the others is where the foot lands wrong — which is why uneven geometry is among the most commonly cited causes of falls on exterior stairs. Consistency along the whole run matters more than any individual dimension.
What makes a handrail compliant?
It has to be graspable — something a hand can close around, at a consistent height, continuous along the run, with extensions past the top and bottom. A flat board on top of a guardrail is the most common non-compliant arrangement we replace: you can rest a hand on it and you cannot hold it, which is exactly the wrong thing at the moment it matters.
Do you build balcony stairs as well as deck stairs?
Yes — balcony stairs outdoor, elevated walkway runs, and deck stairs are the same work with the same requirements. What differs is the connection at the top, where a stair meeting a balcony has to be flashed into the same waterproofing system that protects the structure and the unit below.
Do you build indoor stairs?
No. Our work is exterior: stairs serving decks, balconies, and elevated walkways on commercial and multifamily property. Interior stair construction is a different trade and we’d rather point you elsewhere than take it on.
Are stairs covered by SB 721 and SB 326?
Yes, where they’re part of a wood-framed exterior elevated element serving a property with three or more units. Stairs and their guardrails are among the most frequently cited items in both inspections, and the repairs have to meet current standard regardless of when the building was built.
Are you stair builders near me in California?
Rather than comparing stair building companies one by one, call a deck stair builder who works on occupied commercial property every week. We’re a CSLB-licensed contractor (#1060736) building exterior stairs across the Bay Area, Central Valley, and Sacramento, exclusively on commercial, multifamily, and HOA property. Assessment, access planning, structure, guardrails, and documentation come from one crew.
11 Start here
Tell us about the stairs — free assessment
Send the inspection finding or describe what you’re seeing: soft treads, a stringer that’s dark at the base, a handrail nobody can grip. We’ll assess the run and give you a written scope — including how residents keep reaching their doors while the work happens.
CSLB #1060736 · 9+ years · Insured & Bonded · Commercial, multifamily & HOA properties across the Bay Area, Central Valley & Sacramento