This post is an adaptation from https://www.hgtv.com/lifestyle/clean-and-organize/get-your-house-ready-for-summer, not an original blog.
Clean the walkway
Pressure-wash the walkway, then replace damaged pavers or bricks, or just flip them over. If any pavers are sticking up too high, raise them, remove a little dirt, and drop them back in place. On concrete walkways fill in cracks with a masonry crack filler that matches the color of your concrete.
Spruce up the front door
Probe the weather stripping around the door with a screwdriver and caulk any post-winter gaps before tightening hinges that may have come loose due to shifts in temperature.
Prep the windows
Caulk any gaps in the framing and check that the mechanics are working by opening and closing each window a few times. Wash windows with a vinegar-ammonia solution first, then with water only. Dry with a squeegee.
Quick tip: Wash windows on a cloudy day. The sun may dry the solution too soon, leaving streaks.
Tidy up the flower beds
Clear out weeds and use a spade to redefine bed edges. Till the top inch or two of soil if it’s tightly packed, being careful not to disturb any bulbs below. Apply 2 to 3 inches of mulch.
Fill in the grass
Remove leaves and twigs and de-thatch dead grass with a metal rake. Ask for help choosing the right seed at a garden center, then apply it to bald patches or anywhere you want a thicker lawn.
Quick tip: Weed-killing fertilizer will work fastest if applied right before it rains.
Fix the sprinkler
Check for any winter damage, including broken heads and cracked pipes, by running your sprinkler one zone at a time. Any bubbling or geyser-like area needs a new head.
Clean out the birdbath
Empty the bath and fill it with warm water and ¼ cup of chlorine bleach. (Bleach is safe if you rinse thoroughly, but you can also swap it for 1 cup of white vinegar.) Cover the bath with a tarp or plastic bag, and let the solution soak for 30 minutes before scrubbing and rinsing.
Hose down the air-conditioning condenser
Shut down the power on the electric panel, then clear away any leaves or branches lodged in the unit. Wash down all the coils with a garden hose. If you find any chewed wires, call a pro to repair them.
Clear out the gutters
Clean leaves and debris from your gutters. The next time it rains, stand outside and look for breaks or leaks in your gutters and downspouts.
Repair the siding
If your house has wood siding or shingles, inspect for post-winter rot, repair the damaged areas, then touch up any faded stain or chipped paint. A nylon scrub brush and all-purpose cleaner should eliminate dirt and mold on engineered wood, vinyl, or aluminum siding.