WATERPROOF DECKS & IRON STAIRWAYS,
premium protection powered by service.
National Deck & Stair provides waterproofing for decks, balconies, courtyards and pool decks, plus precast tread replacement and iron stairways, railing, fencing and gates for residential, HOA and commercial properties across Southern California.

25+ Years Combined Crew Experience
LICENSED & INSURED – C15 #927155

SLO to San Diego
FULL SOUTHERN CALIFORNIA COVERAGE

Leak-Detection Estimators
DIAGNOSE BFORE WE COAT

HOA & Commercial Trusted
RESIDENTIAL, HOA & COMMERCIAL
COST-EFFECTIVE SOLUTIONS, WITHOUT COMPROMISING QUALITY.

Leak Detection First
Our estimators diagnose the actual source of water intrusion before we ever quote a fix so the repair solves the problem, not just the symptom.

CUSTOM FINISHES
A wide range of finishes, textures, patterns and colors, so your waterproofing system matches your design, not the other way around.

NO JOB TOO BIG OR SMALL
OUR SERVICES
Waterproofing applications for every exterior surface, plus magnesite, fiberglass and iron-based precast stairways, railing, fencing and gates.

Waterproof Walking Decks

Pool Decks

Other Decks, Courtyards & Patios
Courtyards, rooftop decks, entryways and patios, get custom waterproofing for any exterior deck surface.

Balconies
Leak-proof balcony coatings that protect the unit below, extend the life of the structure and last for years.

Magnesite & Fiberglass Staircases
Expert resurfacing of worn magnesite stair treads with modern, durable fiberglass coating systems.

Iron-Based Precast Stairs
Custom iron-framed precast concrete stairways built for durability and code compliance.

BASED IN HUNTINGTON PARK. WORKING ACROSS ALL OF SOUTHERN CALIFORNIA.
We provide cost-effective waterproofing and iron stairway solutions for residential, HOA and commercial properties, with estimators who are experts at leak detection and problem solving, not just installation.
- Family-run, customer-service first approach
- Crews covering the entire Southern California region
- Residential, HOA and commercial expertise
TRUSTED BY HOMEOWNERS, HOAS & PROPERTY MANAGERS.
“This review is long overdue. I have been working with National Stair and Deck for several years now and couldn’t be happier with the quality of their work, their responsiveness and the owner Bruce’s willingness to go over every detail of every job. Bruce’s knowledge and expertise is so well appreciated. In an industry where folks just want to sell you on whatever is easy Bruce and his men actually take the time to explain and assess properly before quoting a job. I am a homeowner and on the HOA board of 5 buildings. We have used him on several jobs and every time came out with nothing but great results. Highly recommend!”
nINA E.
“Claudio and his team at National Deck solved a difficult problem for my rooftop deck. They did it for a very very fair price. I had gotten several bids and they got it done for a fraction of what other big companies were saying.
It has been about 3 years since the job was done and i am very grateful that i have not had ANY issues with it since.
The entire office and owner seem to be very good people.”
CHRISTOPHER G.
“I had National Deck & Stair waterproof my balcony. They completed the job in two days instead of estimated 3 days. I really like they were able to do it from outside using a ladder and not coming in through my home. So far it looks great hoping for no more leaks into my garage. They were less expensive then some others and have a longer warranty.”
