Other competitors include online referral services.[10] In addition, some large home centers offer installation services for products such as cabinets and carpet installation.[16] Sometimes homeowners contact a professional service after trying, but failing, to do repair work themselves; in one instance, a Minneapolis homeowner attempted a project but called a technician to finish the project, and the overall cost was substantial.[19]
How to DIY it: This job can be messy, so protect nearby surfaces by covering them with plastic or cardboard. Spray the springs with garage door lubricant (about 
$7 at home centers). Don’t use oil, grease, or other lubricants. They may be cheaper, or you may have them on hand already, but they won’t work as well and tend to pick up dust and grit—just what you don’t want on moving parts. 
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