Licensed NYC contractor · HIC 2037327-DCA Open 7 days · 7:30am to 9pm (347) 515-8989

Dry, warm and legal

Basement Finishing in the Bronx and Westchester

Basement finishing in the Bronx, Queens and Westchester. Waterproofed, insulated and built to code. Call (347) 515-8989.

NYC DCWP HIC #2037327-DCALicensed home improvement contractor
10+ YearsConstruction experience
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Finishing a basement before dealing with the water is the most expensive mistake in home renovation. Framing and drywall go up over a damp wall, and eighteen months later the whole thing comes back out. We waterproof first, every time.

We finish basements to code, with proper egress, ceiling height and fire separation, so the space is genuinely usable rather than technically off the record.

What this service covers

  • Waterproofing before finishing
  • Framing, insulation and drywall
  • Egress windows and doors
  • Ceiling height and headroom solutions
  • Basement bathrooms and kitchenettes
  • Code compliant fire separation
Basement Finishing work by Alliance General Construction in the Bronx, NY

Get a price on basement finishing

Phone
(347) 515-8989
License
NYC HIC 2037327-DCA
Hours
7 days, 7:30am to 9pm
Estimate
Free and on site

When to call us

Signs you need basement finishing

If you recognise any of these, it is worth having someone look before it gets more expensive.

  • Space standing unused
  • Damp or musty smell
  • Low headroom to work around
  • A need for extra living space

What causes it

Why this happens

Finishing a wet basement is the most expensive mistake in home renovation, because you pay for the work twice. Framing and drywall go up against a wall that is still taking water, and eighteen months later the whole thing comes back out along with whatever grew behind it. We waterproof and then wait through a wet period before framing. It is slower and it is the only way that lasts.

Budget guidance

What basement finishing costs in NYC

Basement finishing commonly runs 60 to 130 dollars per square foot depending on ceiling treatment, egress work and whether a bathroom is included. Waterproofing, if needed, is priced and completed as a separate phase beforehand rather than folded in.

These are indicative ranges to help you budget, not a quote. Every building is different and we price after seeing the job.

What we work with

Materials and systems

  • Moisture resistant framing and insulation
  • Egress windows and code compliant doors
  • Fire rated ceiling assemblies
  • Sump systems and vapour barriers
Ask about your project

How it works

Straightforward from the first call

Step 1

Call or send your drawings

If you have plans we work from them. If not we will tell you what you need.

Step 2

On site walkthrough

We look at what is actually there, including whatever is behind the walls.

Step 3

Written scope with staged payments

Clear breakdown and a payment schedule tied to completion stages.

Step 4

Build, with one point of contact

Trades coordinated and sequenced, and someone reachable throughout.

Where we do this work

Basement Finishing across NYC and Westchester

We carry out basement finishing throughout the Bronx, Queens, Brooklyn, Manhattan and Westchester County, on residential and commercial property.

Related services

Often needed alongside this

Most exterior problems have more than one cause. These are the services we most often carry out on the same building.

All services

Questions

Basement Finishing questions

Do I need a permit to finish a basement?

In NYC yes, for any work involving framing, plumbing, electrical or changes to occupancy. Unpermitted basement conversion is a common and expensive violation.

What is the minimum ceiling height?

Requirements vary by use and occupancy. We measure and tell you what the space can legally be before you plan around it.

Can a basement be a legal apartment?

Only under specific conditions involving egress, ceiling height, light, air and zoning. Many Bronx basements do not qualify, and we will tell you honestly if yours does not.

Free on site estimate

Need basement finishing in the Bronx or NYC?

Call us or send a message and we will arrange a free on site estimate at a time that suits you.

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