Benefits

Trees play several essential roles, they:

• Produce oxygen
• Capture a portion of carbon dioxide (CO2), which is heating up the planet
• Filter air pollution
• Beautify the urban landscape
• Reduce the risk of flooding by slowing down rainwater run off

Do tree roots cause damage?

Foundations

Despite what is commonly believed, roots do not pierce concrete and they do not cause foundation cracks. They can, however, grow into an existing fissure if water and oxygen is found there.

If you notice cracks in your building foundations, consult the relevant expert to determine the cause of the problem and offer solutions.

Pipes and sewer lines

Roots do not puncture sewer lines that are in good condition. However, they can infiltrate pipes that already have cracks, defective joints or other deterioration caused by soil movement, freeze-thaw cycles and material aging.

When roots are attracted by leaking water or oxygen, they grow through existing openings. This means the presence of roots is a sign of an existing problem, rather than its cause.

If you have concerns about the condition of your plumbing system, have a professional inspect it to diagnose the problem and learn what repair or replacement options are available.

Sidewalks

Paved surfaces such as sidewalks and driveways can crack over time, due to temperature changes, freeze-thaw cycles, heavy vehicle use or insufficient construction quality.

Often, roots will take advantage of movement or existing deterioration of a sidewalk to infiltrate and occupy space as it becomes available. This means their presence is a result of a crack, not its cause.

To protect or repair your paving, consult a landscaping specialist. If you are thinking of relandscaping, entrust the project to professionals.

In case of doubt

Do you think you have a tree root problem?

1. Take photographs and note the dates damage appears.
2. Contact a specialized company to identify the source of the problem, learn what repairs are needed (foundations, plumbing, etc.) and help you prevent premature deterioration or breakage.
3. Contact 311 if you need to:
   • Learn what to do about a problem in the city-owned portion of a water or sewer line.
   • Learn about regulations regarding repairs to sewer pipes, driveway entrance enlargements or any other work that requires a permit.
   • Notify the borough that work will be done near a public tree, and when a city tree needs care.

Tree maintenance

Get a qualified arboriculturist to carry out maintenance of your trees. If you need to cut down a tree located on your property because it is dangerous, unhealthy or it prevents the completion of major work, you must apply for a tree-felling permit. In no case can you prune, fell or damage a tree belonging to the city.