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The Treasure Valley has hard freezes, hot dry summers, and irrigation that needs to be started and put to bed. Use this as a reminder of what to check each month. Your home and equipment may need a different schedule.
January
WINTER
Change or inspect HVAC filters
Winter run time is heavy. A clean filter helps airflow and keeps your heating system working efficiently.
A standard filter typically costs about $10 to $25. Check it monthly and replace it when dirty, especially if you have pets, construction dust, or heavy furnace use. Restricted airflow makes your system work harder and can increase energy use. Spending a few dollars on a filter is much cheaper than an HVAC service call or premature equipment repair.
Check exposed plumbing for freeze risk
Treasure Valley freezes can put pipes in garages, crawl spaces, exterior walls, and other unheated areas at risk.
Inspect exposed plumbing for missing insulation and cold drafts. Foam pipe insulation is inexpensive, often under $20 for a small DIY project. During severe cold, protecting vulnerable pipes can help prevent a burst pipe and the much larger cost of plumbing and water-damage repairs.
Test smoke and carbon monoxide detectors
With furnaces, fireplaces, and other heating equipment running more often, January is a good time for a safety check.
Press the test button on every smoke and carbon monoxide detector. Replace weak batteries and check the manufacture date on each unit. A pack of replacement batteries may cost $5 to $15, while replacing an older detector commonly starts around $20 to $50 per unit.
Check the attic and ceilings for moisture
Winter is a good time to catch roof leaks, condensation, and ventilation problems before they spread.
Look for water stains, damp insulation, frost, musty odors, or discoloration around ceilings and attic penetrations. Catching a small moisture problem early may mean a relatively simple repair instead of damaged insulation, drywall, paint, or framing.
February
WINTER
Inspect doors and windows for drafts
Cold air around windows and exterior doors makes your heating system work harder.
Feel around frames for drafts and inspect worn weatherstripping or cracked caulk. Basic weatherstripping or caulk can often be purchased for $10 to $30. Sealing small air leaks is one of the simpler ways to improve comfort without replacing windows.
Check gutters and downspouts
Winter storms can leave gutters clogged with leaves, ice, and other debris.
Make sure gutters are draining and downspouts direct water away from the foundation. A basic professional gutter cleaning may cost roughly $100 to $250+, depending on the home. Good drainage helps protect your roof, siding, and foundation from water problems.
Look for plumbing leaks
Small leaks can quietly waste water and damage cabinets, flooring, and drywall.
Check under sinks, around toilets, behind appliances, and near your water heater. Look for moisture, corrosion, staining, or unusually high water use. A small DIY fix might cost only $10 to $30, while ignored water damage can become a much larger repair.
Check your water heater
Your water heater works year-round, so give it a quick visual inspection.
Look around the tank for moisture, corrosion, unusual noises, or signs of leakage. Check that the area around it is clear. If the unit is older or showing signs of trouble, having it inspected before it fails can help you plan for replacement instead of dealing with an emergency.
March
SPRING
Schedule your A/C tune-up early
Don’t wait for the first hot Treasure Valley week to find out your A/C needs attention.
Spring is a good time to schedule HVAC maintenance before contractors hit their busiest summer period. A tune-up commonly runs around $100 to $200+, depending on the system and company. Preventive service can catch worn parts or performance problems before peak cooling season.
Inspect the roof after winter
Snow, ice, wind, and temperature swings can expose weak spots in a roof.
From the ground, look for missing or damaged shingles, loose flashing, sagging gutters, or visible debris. Addressing a small roofing problem early can help prevent a leak from turning into damaged decking, insulation, and drywall.
Clean around the outdoor A/C unit
Your condenser needs room to move air.
Remove leaves, weeds, and other debris around the outdoor unit. Aim for roughly 2 feet of clear space where practical. This is essentially a free maintenance task and helps the system operate without unnecessary airflow restrictions.
Check exterior faucets for freeze damage
Winter damage sometimes doesn’t become obvious until you use the faucet again.
Turn on each exterior hose bib and check for leaking around the fixture or unexpected water inside the home. Catching freeze damage before regular spring watering begins can prevent hidden water damage.
April
SPRING
Start irrigation carefully
Treasure Valley irrigation season means it’s time to find out how your system handled winter.
Turn the system on gradually and run each zone individually. Watch for broken heads, leaking valves, low pressure, or unusually wet areas. Small sprinkler repairs may cost only $10 to $30 in parts if handled early.
Adjust sprinkler heads
Water should land on your landscaping, not your driveway.
Watch each zone while it runs and adjust heads spraying sidewalks, fences, streets, or the house. It costs little or nothing to correct and can reduce wasted water throughout irrigation season.
Clean gutters and check drainage
Spring rain needs somewhere to go.
Clear leaves and debris and make sure downspouts carry water away from the house. If water pools near the foundation, address the drainage problem before irrigation and summer watering add even more moisture.
Inspect exterior caulking
Winter temperature swings can crack or separate exterior sealant.
Check around windows, doors, siding penetrations, and utility openings. Exterior caulk generally costs around $5 to $15 per tube, making this one of the cheaper preventive maintenance projects.
May
SPRING
Check Your Roof and Gutters
Spring wind and rain can expose loose shingles, damaged flashing, and clogged gutters. Check for missing shingles, water stains on ceilings, and downspouts that drain too close to the foundation.
Catching a small roof leak early can help prevent expensive repairs to drywall, insulation, and wood framing. If you notice damage, get it inspected before summer storms arrive.
Clean Your Dryer Vent
Lint can build up inside the dryer vent even when you clean the lint screen after every load. Restricted airflow can increase drying time and create a fire hazard.
DIY cleaning kits typically cost around $20–$40, while professional cleaning may cost $100–$200 or more. If clothes take longer than usual to dry, check the vent before assuming the dryer needs replacing.
Inspect Exterior Caulking and Paint
Check the caulking around windows, doors, and exterior openings for cracks or gaps. Look for peeling paint, exposed wood, and damaged siding before summer heat and sun make deterioration worse.
A tube of exterior caulk typically costs around $5–$15. Sealing small gaps and touching up damaged paint can help keep moisture out and prevent wood rot. Repairing a small area is usually easier than replacing damaged trim or siding.
Check Your Water Heater for Leaks
Look around the base of your water heater, the connections, and the nearby floor for moisture, rust, or signs of corrosion. Also check for dripping from the temperature and pressure relief valve discharge pipe.
Finding a leak early can help prevent water damage to flooring, drywall, and nearby belongings. If you notice active leaking, corrosion, or unusual changes in performance, have a plumber inspect the unit before the problem gets worse.
Look for Signs of Pests
As temperatures warm up, ants, spiders, wasps, and other pests become more active around Treasure Valley homes. Check window frames, garage corners, eaves, the foundation, and gaps around utility lines.
Basic DIY pest-control supplies may cost around $10–$30. Sealing entry points, keeping vegetation away from the home’s exterior, and removing standing water can help discourage pests before a small problem turns into a larger infestation.
June
Summer
Inspect Your Deck and Patio
With outdoor gatherings picking up, check your deck, patio, and steps for loose boards, wobbly railings, protruding nails, and cracked concrete. Look for soft or rotting wood, especially around posts and areas that stay damp.
Tightening loose hardware and replacing a damaged board early can be much cheaper than repairing a larger section later. Basic deck repair materials may cost around $20–$75, depending on what needs fixing.
Clean Your Refrigerator Coils
Dust and pet hair can collect around refrigerator condenser coils, making it harder for the appliance to release heat. This can affect efficiency and put extra strain on the refrigerator.
Check your owner’s manual for the correct cleaning method and coil location. A coil-cleaning brush typically costs around $10–$20. Unplug the refrigerator before cleaning any accessible coils, and avoid damaging electrical components or refrigerant lines.
Test Your Garage Door Safety Features
Your garage door is one of the heaviest moving parts in your home. Test the auto-reverse feature and check that the photo-eye sensors are clean, aligned, and free of obstructions.
Most sensor cleaning takes only a few minutes. If the door doesn’t reverse properly or the springs, cables, or tracks look damaged, contact a qualified garage door technician. Fixing safety issues early can help prevent injuries and more extensive repairs.
Check Window Screens and Door Seals
Before leaving windows open during cooler evenings, inspect screens for holes and check door seals for gaps. Damaged screens can let mosquitoes and other insects inside, while worn seals can allow dust and hot air to enter.
Small screen patches often cost around $5–$15, and replacement weatherstripping may cost $10–$30. Simple repairs can help keep bugs out and reduce unwanted heat and dust entering your home.
Inspect Outdoor Lighting and Walkways
Longer days and summer gatherings mean more time outdoors, but loose pavers, cracked walkways, and burned-out lights can create trip hazards around your home.
Replace failed bulbs, secure loose fixtures, and check paths, steps, and driveway edges for uneven surfaces. Basic replacement bulbs may cost $5–$15. Fixing small walkway problems early can help prevent falls and keep minor cracks from worsening over time.
July
SUMMER
Check Smoke and Carbon Monoxide Detectors
Summer is a good time to make sure your home’s safety devices are working properly. Test every smoke and carbon monoxide detector, check expiration dates, and replace batteries or units as needed.
Replacement batteries typically cost around $5–$15, while basic replacement detectors often cost $20–$50 per unit. Testing them regularly helps ensure your family has an early warning if something goes wrong.
Inspect Your Attic for Excessive Heat or Moisture
Treasure Valley summers can make attics extremely hot. Check for signs of roof leaks, damp insulation, mold-like growth, or blocked attic vents. If you can safely access the attic, look for unusual moisture or daylight coming through the roof.
Poor ventilation or damaged insulation can affect comfort and energy use. Addressing a small roof leak or ventilation issue early may help prevent more expensive repairs later.
Clean and Inspect Bathroom Exhaust Fans
Dust buildup can reduce airflow and allow moisture to linger in bathrooms. Turn off the power before cleaning accessible fan covers and removing dust according to the manufacturer’s instructions.
A replacement fan may cost around $30–$100 for the unit, before installation. Keeping the fan clean helps control moisture, reduce condensation, and discourage mold growth.
Check Trees and Large Branches
Summer heat and dry conditions can stress trees, while windstorms can break weak or dead branches. Look for hanging limbs, dead sections, cracked branches, or branches rubbing against your roof.
Remove small, safely reachable dead branches yourself if you have the proper tools and experience. Professional tree trimming can cost $200–$800 or more, depending on tree size and access. Addressing hazardous branches early can help protect your roof, vehicles, and power lines.
Inspect Your Washing Machine Hoses
Washing machine hoses can crack, bulge, or deteriorate over time, and a failed hose can release a surprising amount of water into your home.
Look behind the washer for signs of leaks, rust, or damaged connections. Replacement hoses typically cost around $15–$40 per set. Replacing worn hoses before they fail is a relatively inexpensive way to reduce the risk of water damage to floors, walls, and nearby belongings.
August
Summer
Check Your Foundation for Cracks
Hot, dry Treasure Valley summers can cause soil to shrink and settle, sometimes contributing to foundation movement. Walk around your home and look for new or widening cracks, gaps around windows and doors, or areas where the ground has pulled away from the foundation.
Small hairline cracks aren’t always a sign of a serious problem, but widening cracks or doors that suddenly stick deserve attention. Monitoring changes early can help you identify potential problems before repairs become more extensive.
Inspect Your Driveway and Walkways
Summer heat can be tough on asphalt, concrete, and other exterior surfaces. Look for widening cracks, uneven sections, crumbling edges, or areas where water collects.
Concrete crack filler often costs around $10–$25, depending on the product. Sealing suitable cracks early can help limit water intrusion and reduce further deterioration, though larger or moving cracks may need professional assessment.
Check Your Attic Insulation
Your attic plays a big role in keeping your home comfortable during hot summers and cold Idaho winters. Look for insulation that appears compressed, displaced, damp, or uneven, and check for gaps around attic access points.
Weatherstripping for an attic hatch may cost around $10–$30. Sealing air leaks and maintaining adequate insulation can help reduce heating and cooling costs throughout the year. Avoid disturbing insulation that may contain asbestos or other hazardous materials.
Clean Your Range Hood Filter
Grease and dust collect in kitchen range hood filters over time, reducing airflow and making the fan less effective. Remove the filter according to the manufacturer’s instructions and clean it with an appropriate degreasing solution.
Most reusable metal filters can be cleaned rather than replaced. If you need a replacement, many common filters cost around $15–$50. Regular cleaning helps maintain ventilation and reduces grease buildup in the kitchen.
Check Exterior Faucets and Plumbing Connections
After months of summer use, inspect outdoor faucets, hose connections, and visible plumbing for drips, corrosion, or loose fittings. Check around the foundation for unusually wet areas that could indicate a hidden leak.
Basic faucet washers and small repair parts may cost just $5–$20. Fixing a dripping connection promptly can reduce wasted water and help prevent moisture from accumulating near your home’s foundation before fall arrives.
September
FALL
Schedule a Furnace Inspection
Cooler nights are a reminder that heating season is around the corner. Have your furnace inspected if it’s due for service, and check the filter before you start relying on it daily.
A professional furnace tune-up typically costs around $100–$200, depending on the system and provider. Catching worn parts or ignition problems before the first cold snap can help you avoid an unexpected breakdown when you need heat most.
Inspect Your Chimney and Fireplace
If you have a wood-burning fireplace, September is a good time to check for creosote buildup, damaged masonry, and blocked flues before the busy heating season begins.
A professional chimney inspection and cleaning may cost around $150–$350, depending on the chimney and how much cleaning is needed. Removing creosote and checking for obstructions helps reduce the risk of chimney fires and smoke entering your home.
Check Weatherstripping Around Doors and Windows
As temperatures begin to drop, worn weatherstripping can let cold air into your home and allow heated air to escape. Check for cracked seals, loose strips, and noticeable drafts around exterior doors and windows.
Replacement weatherstripping typically costs around $10–$30 for basic DIY materials. Sealing gaps can improve comfort and help reduce heating costs without the expense of replacing otherwise functional windows.
Inspect Your Roof Before Fall Storms
Summer heat and wind can leave behind loose shingles, damaged flashing, or deteriorated sealant. Inspect your roof from the ground for visible damage and check ceilings for new water stains.
Minor repairs may cost $150–$400, depending on the issue and accessibility. Addressing damaged shingles or flashing before heavy rain and snow arrive can help prevent leaks and costly interior repairs.
Clean Your Garbage Disposal and Check for Leaks
Food residue and grease can build up in your garbage disposal and drain connections over time. Clean the unit according to the manufacturer’s instructions, and look under the sink for dampness, loose fittings, or signs of corrosion.
Basic disposal-cleaning supplies may cost $5–$15. Avoid pouring grease down the drain, and don’t use harsh chemical drain cleaners unless the manufacturer specifically approves them. Keeping the drain clear and catching small leaks early can help prevent clogs, odors, and cabinet damage.
October
FALL
Protect Outdoor Faucets Before Freezing Weather
Treasure Valley temperatures can drop quickly in fall, putting exposed plumbing at risk. Disconnect garden hoses, drain them, and install insulated faucet covers where appropriate. If you have frost-free hose bibs, make sure hoses are disconnected so water can drain properly.
Basic faucet covers typically cost around $5–$15. Taking a few minutes to prepare exposed plumbing can help prevent frozen pipes, leaks, and expensive water damage during winter.
Clean Gutters and Check Downspouts
Falling leaves can clog gutters and prevent rainwater from draining properly. Clear out debris and make sure downspouts direct water away from your home’s foundation.
Professional gutter cleaning often costs around $100–$250 or more, depending on the home and accessibility. Keeping gutters clear can help prevent roof leaks, water damage, and drainage problems before winter weather arrives.
Check Your Garage Door and Weather Seals
Cold air, dust, and pests can enter through gaps around your garage door. Inspect the bottom seal and side weatherstripping for cracks, tears, or sections that no longer make contact with the floor.
Replacement bottom seals typically cost around $20–$60 for DIY materials. A good seal helps keep out drafts, leaves, and small pests while protecting stored belongings from the elements.
Inspect Your Fire Extinguishers and Emergency Supplies
Before spending more time indoors, make sure your home is ready for common emergencies. Check that fire extinguishers are accessible and in good condition, test flashlights, and replace dead batteries in emergency radios or other essential devices.
A basic household fire extinguisher typically costs around $25–$60. Having working safety equipment readily available can help you respond more quickly to a small fire or a winter power outage.
Check Your Roof and Trim Trees Near the House
Fall is a good time to look for loose shingles, damaged flashing, and tree branches hanging over your roof. Autumn wind and winter snow can put extra stress on weak branches and roofing materials.
Professional tree trimming may cost around $200–$800 or more, depending on the size of the tree and the work involved. Removing hazardous branches before winter storms can help reduce the risk of roof damage. Hire a qualified professional for large branches or any work near power lines.
November
WINTER
Check Attic Insulation and Look for Drafts
As temperatures drop across the Treasure Valley, check your attic for gaps in insulation, damp spots, or areas where insulation has shifted. Look for drafts around attic access doors, plumbing penetrations, and other openings.
Weatherstripping for an attic hatch may cost around $10–$30. Sealing air leaks and maintaining adequate insulation can help keep your home warmer and reduce heating costs throughout winter.
Inspect Pipes in Unheated Areas
Pipes in garages, crawl spaces, and other poorly insulated areas are more vulnerable to freezing during Idaho cold snaps. Check exposed plumbing for missing insulation and seal gaps that allow cold air to reach pipes.
Foam pipe insulation typically costs around $2–$5 per section. Protecting vulnerable pipes is an inexpensive precaution compared with the cost of repairing a burst pipe and restoring water-damaged walls or flooring.
Clean Your Oven and Check Kitchen Appliances
Before holiday cooking gets underway, clean your oven according to the manufacturer’s instructions and check your refrigerator, dishwasher, and range for signs of wear or leaks.
A suitable oven-cleaning product may cost around $5–$15. Cleaning appliances and catching small leaks early can help them work properly and reduce the chance of an inconvenient breakdown during the holidays.
Check Smoke and Carbon Monoxide Detectors
With furnaces, fireplaces, and other heating equipment running more often, working safety alarms are especially important. Test each detector, check its expiration date, and replace batteries or units as needed.
Replacement batteries typically cost around $5–$15, while basic detectors often cost $20–$50 per unit. Install carbon monoxide detectors according to the manufacturer’s instructions and applicable local requirements, especially near sleeping areas.
Inspect Your Water Shutoff and Emergency Supplies
Make sure you know where your home’s main water shutoff valve is and that you can access it quickly in an emergency. Check flashlights, spare batteries, and basic supplies in case winter weather causes a power outage.
A flashlight and basic emergency supplies may cost around $20–$50, depending on what you already own. Knowing how to shut off the water quickly can help limit damage if a pipe leaks or bursts during freezing weather.
December
WINTER
Check for Drafts Around Doors and Windows
Cold winter winds can make your home harder to keep warm. Check weatherstripping around exterior doors and windows, and look for gaps where cold air is getting inside.
Basic weatherstripping or door sweeps typically cost around $10–$30. Sealing these gaps can make rooms more comfortable and help reduce heat loss without the expense of replacing your windows or doors.
Inspect Your Washing Machine and Dishwasher for Leaks
With more laundry and holiday cooking, your appliances may be working harder than usual. Check the hoses and connections behind your washing machine and look under the kitchen sink for moisture around the dishwasher plumbing.
Replacement washing machine hoses typically cost around $15–$40 per set. Replacing worn hoses and fixing small leaks early can help prevent water damage to cabinets, flooring, and nearby walls.
Check Your Roof and Ceilings After Winter Storms
Snow, freezing rain, and strong winds can expose roofing problems. Look for missing shingles from the ground and check ceilings, attic spaces, and upper-floor walls for new water stains or damp spots.
If you notice a leak, arrange an inspection before the damage spreads. Repairing a small roofing issue is generally less expensive than replacing water-damaged insulation, drywall, or wood framing.
Test Your Smoke Alarms and Fire Extinguisher
Holiday decorations, cooking, fireplaces, and space heaters can increase fire risks during winter. Test smoke alarms, check carbon monoxide detectors, and make sure your fire extinguisher is accessible and within its service life.
Basic replacement batteries typically cost around $5–$15, while a household fire extinguisher may cost $25–$60. Keep space heaters away from curtains and furniture, plug them directly into wall outlets, and never leave them running unattended.
Prevent Frozen Pipes During Cold Snaps
Treasure Valley winters can bring temperatures low enough to freeze vulnerable plumbing. Pay particular attention to pipes in garages, crawl spaces, and exterior walls, especially during extended periods of below-freezing weather.
Foam pipe insulation typically costs around $2–$5 per section. During severe cold, keep vulnerable areas adequately heated, seal drafts near pipes, and know where your main water shutoff is located. These simple precautions can help prevent burst pipes and costly water damage.
When something breaks, the hardest part is knowing who to call. This is the vetted list I maintain for Treasure Valley homeowners.
You don’t have to be buying or selling to ask. If you’re trying to decide what to fix, what to renovate, who to call, or whether it might be time for a move, I’m here to help.
Common Questions:
Ideally 6 to 12 months ahead. That gives you time to handle deferred maintenance, gather records, and decide which projects are worth doing.
Typically in October, before the first hard freeze. Pro schedules fill up fast, so book early.
Disconnect hoses, install insulated covers, and on very cold nights open cabinet doors under sinks and let a faucet drip. Keep the thermostat from dropping too low while away.
Once a year each, ideally furnace in late summer and AC in spring. Change filters every 1 to 3 months.
Start with referrals, confirm license and insurance, get multiple bids in writing, and check recent reviews. Or start with the vendor list above.
Not at all. Questions about maintenance, vendors, or your home’s value are always welcome.
Receipts for repairs and upgrades, warranties, permits, service records, and inspection reports. They help with insurance and a future sale.
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