How much does it cost to finish a basement in Rochester, NY? Unfinished basements are one of the biggest untapped opportunities in Rochester-area homes. TGM Contracting & Remodeling has transformed hundreds of basements across Pittsford, Penfield, Brighton, Webster, Fairport, Victor, and surrounding suburbs. Here’s what to budget in 2025-2026.

Basement Finishing Cost Ranges for Rochester NY

Project Scope	Typical Cost Range	What’s Included
Basic Finish	$25,000 – $40,000	Framing, drywall, flooring, lighting, basic electrical, paint (800-1,000 sq ft)
Mid-Range Finish	$40,000 – $70,000	Open rec room, half bath, wet bar area, upgraded flooring, recessed lighting
High-End Build-Out	$70,000 – $120,000	Full bathroom, kitchenette, bedroom(s), home theater, custom built-ins
In-Law Suite / ADU	$80,000 – $150,000+	Full kitchen, bedroom, bathroom, separate entrance, living area, laundry

Cost Breakdown by Component

Framing & Drywall (15-20%)

Framing a typical 1,000 sq ft basement: $3,000–$7,000. Drywall: $3,000–$6,000.

Flooring (10-15%)

• Luxury vinyl plank: $4–$8/sq ft — #1 choice for Rochester basements (waterproof)
• Engineered hardwood: $8–$14/sq ft — requires moisture testing
• Tile: $6–$15/sq ft — ideal for bathroom areas
• Epoxy: $5–$12/sq ft — great for home gyms

Plumbing — Adding a Bathroom (8-15%)

• Half bath: $5,000–$12,000
• Full bath with shower: $10,000–$25,000
• Ejector pump: $1,500–$3,000 (common in Rochester when drain is below sewer line)

Moisture Management (5-10%)

• Interior waterproofing: $3,000–$8,000
• Sump pump: $800–$2,500
• Battery backup sump pump: $500–$1,500 — essential for Rochester power outages
• Whole-basement dehumidifier: $1,500–$3,000

Rochester-Specific Considerations

• Ceiling height: 7-foot minimum required. Many older Pittsford and Brighton homes have 7.5–8 ft — perfect for finishing.
• Egress windows: Required for bedrooms. $2,000–$5,000 per window. Monroe County enforces strictly.
• Radon: Rochester is in a moderate radon zone. Test before finishing ($15–$150). Mitigation: $800–$2,500.
• Insulation: Rigid foam ($2–$5/sq ft) or spray foam ($3–$7/sq ft) on basement walls.

Popular Basement Uses in Rochester Suburbs

• In-law suite / accessory dwelling — multi-generational living
• Home office — major selling point post-2020
• Home theater / media room — basements are naturally dark and sound-isolated
• Home gym — epoxy floors, dedicated electrical
• Kids’ playroom / teen hangout
• Guest suite with full bedroom + bathroom

Basement Finishing ROI

A finished basement typically recoups 70–75% at resale in the Northeast. A 1,000 sq ft finished basement can add $30,000–$60,000+ in home value — at a fraction of the cost of building an addition.

How TGM Handles Basement Projects

Our in-house designer creates detailed 3D renderings before construction. We address moisture, insulation, electrical, plumbing, framing, and finishing — all with our own crew.. Fully insured. Lifetime craftsmanship warranty.

Ready to finish your basement? Call TGM at (585) 598-1003 or schedule a consultation.

Frequently Asked Questions

How long does it take to finish a basement?

Basic finish: 4–6 weeks. With bathroom: add 2–3 weeks. Full in-law suite: 8–12 weeks.

Do I need a permit in Monroe County?

Yes. Any basement finishing requires a building permit. Electrical, plumbing, and egress windows each need separate inspections. TGM handles all permitting.

Should I waterproof before finishing?

Absolutely. In Rochester’s climate, waterproofing before finishing is essential. TGM assesses moisture conditions during the consultation and recommends appropriate waterproofing.