Home Maintenance Checklist for Montgomery County, MD

Most home maintenance checklists are written for a generic American house in a generic American climate. This one is written for Montgomery County. The freeze-thaw cycle here is harder on caulk and weatherstripping than states that stay cold all winter. The summer humidity is harder on wood, paint, and drainage than dry climates. The mix of housing ages across the county, from 1950s brick colonials in Bethesda to 2000s townhomes in Clarksburg, creates different maintenance priorities depending on what you're dealing with.

This isn't a full building inspection list. It's the practical list of things that prevent the phone calls I get in January after a homeowner skipped them in October.

Property Renovators Home Services has been completing these repairs across Montgomery County since 2016.

Spring Checklist (March-April)

Spring is the audit after winter. Maryland's freeze-thaw cycle cracks caulk, heaves pavement, and works screws loose from wood that expanded and contracted for three months. Do this walk-through in March when the ground is no longer frozen but before spring rains arrive.

• Exterior caulking around windows and door frames. Look for cracks, separation, or sections that have pulled away entirely. Recaulk any gaps before spring rain gets behind the frame.
• Gutters and downspouts. Clear winter debris: leaves that got missed in fall, seed pods, and whatever the wind deposited. Check that all downspouts are directing water at least 4 feet from the foundation. Blocked downspouts in Maryland spring rains send water directly toward the basement.
• Exterior spigots and hose bibs. Reconnect hoses. Check for freeze damage at the spigot. Cracks from winter freezing can be subtle until you run full pressure for the first time.
• Deck and fence inspection. Walk the deck and press on each board. Soft spots mean rot from winter moisture that got trapped. Check railing posts for any movement. Power wash to clear winter grime and get a clear look at the wood condition.
• Driveway and walkways. Maryland frost heaving can crack concrete and lift pavers over winter. Small cracks sealed in spring stay small. The same crack ignored until next spring is a much larger repair.
• Smoke and CO detectors. Test every detector in the house. Maryland law requires working smoke detectors on every level. Replace batteries if they're more than a year old. Replace the unit itself if it's more than 10 years old.
• Weatherstripping check. Close each exterior door on a piece of paper and pull. If the paper slides out with the door fully latched, the weatherstripping has failed. Replace it before summer storms hit.
• Attic check. Look for moisture staining on the roof decking, which indicates winter ice damming or poor ventilation. Insulation that has compressed or shifted. Any signs of pest activity over winter.

Summer Checklist (May-August)

Maryland summers are humid. The two things that cause the most summer damage are standing water and mold-friendly moisture conditions. Keep air moving and water draining.

• Bathroom exhaust fans. Run your hand under the fan while it operates. You should feel strong suction. A weak exhaust fan in a Maryland summer bathroom pumps humid air into the ceiling cavity instead of outside. That humidity has nowhere to go. Exhaust fans should be cleaned or replaced if airflow is poor.
• Ceiling fans. Confirm fans are set to run counterclockwise in summer. This pushes air down and creates the cooling effect. Reverse is for winter. If a fan is wobbling or making noise, the blade screws have likely loosened. Ceiling fan service is a minor fix before it becomes a balance problem.
• Kitchen drain. Summer cooking means more grease going down the drain. Run hot water for 30 seconds after washing greasy pans. A slow kitchen drain in August is usually grease buildup that started in June.
• Outdoor lighting. Check all exterior fixtures. Summer heat expands junction boxes and can loosen connections. Check that bulbs are rated for outdoor exposure. Outdoor lighting issues are easier to address in summer than in the dark of winter.
• Deck and fence mid-season. If you power washed in spring, check now whether boards are showing checking (surface cracks) from the summer heat. Apply sealant or stain before fall if the wood is drying out.
• Window screens. Repair or replace any screens with tears or frames that no longer seat properly. Small gaps let insects in and are simple to fix.

Fall Checklist (September-November)

Fall is the most important maintenance window in Montgomery County. Every item you do before the first freeze costs a fraction of what it costs after damage occurs. This list has a hard deadline: do it before temperatures drop below freezing at night.

• Weatherstripping on all exterior doors. This is the maintenance task that pays back the most in fall. A door that leaks air all winter costs more in heating than a weatherstripping replacement costs. Replace anything that failed the paper test in spring and check again now after a summer of use.
• Recaulk exterior window frames and door frames. Maryland's summer sun degrades caulk just as the freeze-thaw cycle does. Inspect every exterior caulk joint in September. Fresh caulk applied in September adheres well. Caulk applied in November at 35 degrees doesn't cure properly.
• Gutter cleaning after leaves fall. Do this after leaves are fully down, not before. A single cleaning in late November is more effective than two partial cleanings in October. Clogged gutters in Maryland winters cause ice dams that force water under roofing and into the structure.
• Drain and shut off exterior hose bibs. Close the interior shutoff valve for each exterior faucet. Then open the exterior spigot to drain remaining water from the line. Leave the exterior spigot slightly open until you confirm the line is dry. A burst pipe from a frozen hose bib is a significant repair.
• Furnace service. Schedule in September or October. HVAC companies are booked in November when everyone waits until the first cold snap. A furnace that hasn't been serviced in two years is an efficiency and reliability issue waiting for the coldest night of the year to reveal itself.
• Dryer exhaust duct cleaning. Disconnect the duct from the back of the dryer and clean the full length once a year. A clogged dryer exhaust is a fire risk and strains the appliance. This takes 20 minutes to do yourself or 45 minutes with a professional.
• Inspect roof before winter. Look from the ground with binoculars for lifted or missing shingles, damaged flashing around chimneys and vents, and sagging sections. Issues found in October cost far less to correct than ice and water damage after a winter with known problems.
• Smoke and CO detector second test. With heating systems firing back up for the first time, fall is the right time for the second round of detector testing. Carbon monoxide risks increase when combustion appliances run heavily in the winter.

Winter Checklist (December-February)

Winter maintenance is mostly monitoring and early response. The work that should have been done in fall was done. Now you watch for problems that develop during cold weather and address them before they compound.

• Watch for drafts at exterior doors. If a door that was fine in November is suddenly drafty, the weatherstripping compressed and failed in the cold. Temporary door draft stoppers buy time, but the weatherstripping needs replacing before next season.
• Monitor for ice dams. Ice dams form along roof edges when interior heat melts roof snow and it refreezes at the cold overhang. If you see icicle formation along the roofline combined with wet drywall or ceiling staining inside, the dam has already done damage. This is an attic insulation and ventilation issue at its core.
• Check under sinks after hard freezes. Pipes on exterior walls or in unheated cabinets are most at risk. Open cabinet doors under bathroom and kitchen sinks on very cold nights to let heated air reach the pipes. If a faucet produces only a trickle after a cold night, a pipe may have frozen before bursting.
• Interior door sticking. Wood expands in winter humidity and doors that were fine in fall start to stick. This is normal for older homes and usually resolves in spring. If a door won't fully latch, that's a frame issue that needs adjustment.
• Bathroom exhaust fans. Run them during and for 15 minutes after every shower. Maryland winter shower steam that stays in the bathroom encourages mold. A weak fan in winter is a maintenance issue worth addressing in spring.

Year-Round Tasks

Some things don't have a season. They just get checked when they need checking.

• Slow drains. A slow drain is significantly less costly to clear than a completely blocked drain. Address slow drains as they develop, not when they stop entirely.
• Running toilets. A toilet that runs continuously wastes a significant amount of water and indicates a flapper or fill valve that has worn out. These are minor repairs. A running toilet you've been listening to for six months has wasted money every single day.
• Dripping faucets. A slow drip from a faucet is a worn cartridge or seat washer. Left alone, the drip erodes the valve seat and turns a minor repair into a major one. Faucet repair is one of the highest-ROI calls to make early.
• Exterior caulking. Walk the exterior of your house every spring and fall. Any gap where two materials meet is a potential water entry point. Caulk is a small cost. Water damage isn't.

When to Call vs. When to DIY

Most homeowners can handle cleaning gutters, replacing smoke detector batteries, running the paper test on door weatherstripping, and clearing slow bathroom drains with a drain snake. These are low-skill, low-risk tasks.

The line into contractor territory is: anything inside a wall, ceiling, or floor; anything involving electrical work beyond replacing a switch or outlet; anything involving the main plumbing stack or supply lines; anything structural; and any work where a mistake creates a safety risk. Maryland requires an MHIC license for all home improvement work for a reason. The contractors who hold that license carry insurance that covers your property if something goes wrong. The person doing unlicensed work for far less doesn't.

If you're not sure whether a repair is in your skill range, call and describe what you're seeing, and you'll get a straight answer.

Frequently Asked Questions About Home Maintenance in Maryland