The MIT Department of Facilities web-page has a wealth of helpful maintenance information.
How to get repairs done:
For normal repairs:
You can use the link above to go to the facilities web-page or you can go directly to the repair request page by clicking on Building Repair Form from the following link (you will need an MIT web certificate):
Facilities and Housing contact and repair request page
For after hours and weekend emergency repairs:
If it is a weekend or after normal business hours and you have a repair that cannot wait until the next business day, call the after hours and weekend housing emergencies phone number:
After Hours and Weekend Housing Emergencies Phone: (617) 253-1500