Periodic maintenance also falls under the general class of home repairs. These are inspections, adjustments, cleaning, or replacements that should be done regularly to ensure proper functioning of all the systems in a house, and to avoid costly emergencies. Examples include annual testing and adjustment of alarm systems, central heating or cooling systems (electrodes, thermocouples, and fuel filters), replacement of water treatment components or air-handling filters, purging of heating radiators and water tanks, defrosting a freezer, vacuum refrigerator coils, refilling dry floor-drain traps with water, cleaning out rain gutters, down spouts and drains, touching up worn house paint and weather seals, and cleaning accumulated creosote out of chimney flues, which may be best left to a chimney sweep.

A variety of problems can befall your home’s doors, especially older doors that may start to sag, stick, develop drafts or experience other issues. Fixing or replacing a door is well within the capabilities of most homeowners, especially if you have a partner to help out. From installing new weather stripping to replacing the lock, you can handle it. Watch this video to see how simple it is to replace an interior door yourself.
Depending on where you live, national averages can seem like a steal. Rene Artale’s four-bedroom house near Newcastle, in Westchester County, N.Y., suffered some damage during a storm last winter. A tree fell in the yard, damaging her fence, arbor and retaining wall. And heavy snow caused her roof to leak. The repair bills just kept piling up. Removing the tree, $3,800. Repairing the wall, $4,000. Fixing the roof, $3,800. Fixing the picket fence, $2,800. “It’s obscene,” Ms. Artale, 47, said.
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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