Building Trust in Brooklyn for Over 20 Years.
3A Construction Group Corp is a licensed general contractor in Bay Ridge, Brooklyn. We restore brownstones, remodel kitchens and baths, replace roofs, and build out commercial spaces — with honesty, craftsmanship, and a crew that actually shows up.
- Years in Brooklyn
- 20+
- Projects Completed
- 850+
- Licensed & Insured
- 100%
- Average Rating
- 4.9★
What We Build
Full-Service Construction, One Accountable Crew
From a single bathroom to a full brownstone gut renovation, every project gets the same dedicated project manager, the same in-house trades, and the same written warranty.
Brownstone & Facade Restoration
Bring historic Brooklyn facades back to their original glory.
From cornice reconstruction to stone repointing and lintel replacement, we restore the architectural character that makes Brooklyn brownstones iconic — while bringing the building envelope up to modern code.
- Cornice & lintel repair
- Stone & brick repointing
- Local Law 11 facade work
- Window & door replacement
Kitchen Remodeling
Custom kitchens built for the way your family actually cooks.
Full-service kitchen renovations from layout and cabinetry to plumbing, electrical, and finish work. We handle the design, the permits, and every trade in between.
- Custom cabinetry & islands
- Plumbing & electrical upgrades
- Stone & quartz countertops
- Appliance installation
Bathroom Renovation
Spa-quality bathrooms with bulletproof waterproofing.
Whether it's a small powder room or a primary suite, our bathrooms start with proper waterproofing (Kerdi, Noble) and end with finishes you'll love for years.
- Waterproofing systems
- Custom tile & stone
- Walk-in showers & freestanding tubs
- Vanity & lighting design
Roofing & Waterproofing
Flat roofs, pitched roofs, decks — done right the first time.
We install and repair built-up roofs, modified bitumen, TPO, and EPDM systems, plus rooftop decks and green roofs. Every roof comes with proper drainage and a written warranty.
- Flat & low-slope roofing
- TPO / EPDM / modified bitumen
- Rooftop decks & railings
- Leak diagnostics & repair
Commercial Build-Outs
Retail, restaurant, and office build-outs on schedule.
From storefronts to full restaurant fit-outs, we deliver commercial spaces that pass DOB inspections on the first try and open on your grand-opening date.
- Storefront & restaurant fit-outs
- Office build-outs
- ADA compliance work
- After-hours & weekend crews
Full Home Renovation
Gut renovations managed end-to-end by one accountable crew.
One contract, one project manager, one crew. We handle demolition, framing, plumbing, electrical, HVAC, drywall, millwork, and finishes — and we keep you informed every single day.
- Gut renovations
- Floor plan reconfiguration
- Mechanical, electrical & plumbing
- Millwork & finish carpentry
in Brooklyn
About 3A Construction Group
A Brooklyn Crew That Treats Your Project Like Our Own
3A Construction Group Corp was founded in 2003 in Bay Ridge, Brooklyn. Two decades later, we're still a family-run operation with the same simple promise: show up on time, do what you said you'd do, and treat the client's home like it was your own.
We've restored historic brownstones in Park Slope, built out restaurants in Bay Ridge, replaced flat roofs in Dyker Heights, and renovated hundreds of kitchens and bathrooms across all five boroughs. Every project — big or small — gets a dedicated project manager, a written timeline, and a fair, itemized quote.
Licensed & Insured
NYC-licensed general contractor with full liability and workers' comp. COI available for any project.
20+ Years in Brooklyn
Family-run since 2003. We've delivered 850+ projects across all five boroughs.
In-House Crew
No subs-for-subs. Our own carpenters, masons, and project managers handle your job.
Written Warranty
1-year workmanship warranty on every residential project, plus extended roofing & facade coverage.
Recent Work
Drag to See the Difference
Real projects from across Brooklyn. Slide the handle left and right to compare before and after — that's the 3A difference.
After
BeforeBay Ridge Brownstone Facade
Full facade restoration on a 1908 limestone brownstone — cornice rebuild, repointing, and window replacement. Passed Local Law 11 inspection with zero violations.
After
BeforePark Slope Chef's Kitchen
Gut renovation of a galley kitchen into an open chef's kitchen with marble island, custom shaker cabinetry, and a navy accent wall. Completed in 6 weeks.
After
BeforeBrooklyn Heights Primary Bath
Master bath transformation: freestanding tub, walk-in glass shower, heated marble floors, and gold fixtures against a navy accent wall. Waterproofing backed by a 5-year warranty.
After
BeforeDyker Heights Rooftop Deck
Replaced a leaking flat roof and built a 400 sq ft rooftop deck with glass railings, string lighting, and a Manhattan skyline view. New 60-mil EPDM roof with 20-year warranty.
Client Reviews
Brooklyn Homeowners & Business Owners Trust 3A
Real words from real clients across Brooklyn. We've earned every one of these reviews the hard way — by doing the work right.
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Questions & Answers
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Free on-site estimates in Brooklyn, Queens, Manhattan & Staten Island.
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Let's Build Something Together
Tell us about your project and we'll be in touch within one business day. No pressure, no obligation — just honest advice from a Brooklyn crew that wants to earn your business.
Contact Information
Call us
(718) 555-0123Email us
info@3aconstructiongroup.comVisit us
7420 3rd Avenue
Brooklyn, NY 11209Office hours
- Monday – Friday: 7:00 AM – 6:00 PM
- Saturday: 8:00 AM – 2:00 PM
- Sunday: Emergency only