Looking for a demolition contractor in Mountainside, NJ? Describe your project once and up to three demolition contractors who work in Mountainside and Union County get back to you with a quote. It's free and there is no obligation.
Mountainside is home to about 7,228 people (2024 Census Bureau estimate), a growing community (+2.9% since 2020). With 1,809 people per sq mi, it is a suburban area. Teardowns of older homes and removal of damaged or unused buildings are the usual demolition jobs here.
Mountainside at a glance
- Population (Census Bureau estimate, 2024)
- 7,228 (+2.9% since 2020)
- Rank in New Jersey
- 156th of 323 cities and towns
- Land area
- 4.0 sq mi
- Population density
- 1,809 people per sq mi (suburban)
- Type
- Borough (Mountainside borough)
- Main county
- Union County
What to check before hiring in Mountainside
- Permit: in New Jersey, demolition permits are issued by the city or county, often after utilities are disconnected.
- Asbestos: have a survey done first and keep the report for the permit.
- Debris: ask about disposal fees and recycling.
- Price drivers: size, materials, foundations, access and disposal.
Useful official resources
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EPA: asbestos
Official information and guidance.
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Call 811
Official information and guidance.
Services available in Mountainside
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House or building demolition
Full demolition with permits, utility disconnections, debris removal and site cleanup.
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Interior or partial demolition
Selective demolition before a remodel, or of an outbuilding.
Frequently asked questions in Mountainside
How much does demolition cost in Mountainside, NJ?
It depends on the size and materials of the building, the foundation and disposal. Describe your project: contractors who serve Mountainside reply with a quote.
How long does it take?
A house often comes down in a few days once permits are in place.
Who disconnects the utilities?
The utilities themselves, at the owner's or contractor's request, before the permit is issued.
Which demolition contractors will contact me?
Up to three independent demolition contractors who serve Mountainside and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.