Professional stair building services throughout Brooklyn, Queens, Bronx and Long Island. $5,000 - $25,000+. Free estimates within 24 hours.
Custom stair construction for new builds, additions, and complete stair replacements. Our skilled craftsmen bring over 10 years of NYC carpentry experience to every project.
On-site visit to assess your space, take precise measurements, and discuss design preferences, materials, and budget.
Create detailed shop drawings showing exact dimensions, materials, joinery details, and finished appearance for your approval.
Choose wood species, stain colors, railing styles, and hardware. We source quality materials from trusted NYC suppliers.
Skilled carpenters build stair stringers, treads, risers, and railings in our shop using precision tools and traditional joinery.
Careful removal of existing stairs while protecting surrounding floors and walls. Proper disposal of debris.
Professional installation with proper anchoring, level treads, secure railings, and code-compliant dimensions.
Sanding, staining, painting, or sealing as specified. Multi-coat application for durable, beautiful finish.
Complete cleanup, final inspection, and walkthrough together to ensure everything meets your expectations.
We provide professional stair building services throughout:
Browse a selection of our recent work. Quality craftsmanship and attention to detail in every project.
"Sani Building Corp did an incredible job on our brownstone stairs. They restored the original character while making everything safe and beautiful. The craftsmanship is exceptional."
"Custom stair installation in our renovated home. The team designed exactly what we wanted - modern lines with traditional materials. On time and within budget."
"Stair renovation transformed our entire entryway. New treads, refinished railings, and beautiful stain color. The team was professional and respectful throughout."
"Antique stair restoration in our Long Island home. They matched the original 1920s craftsmanship perfectly. Incredible attention to detail and quality."
"Modern stair upgrade with cable railings and LED lighting. Completely transformed our split-level home. Beautiful work and fair pricing."
"Quick stair upgrade in our LIC condo. New treads, modernized railings, and fresh stain. Finished in 4 days with minimal disruption."
Get a free, detailed estimate within 24 hours. No obligations, no hidden fees.