The Colorado Springs Homeowner Maintenance Checklist: What to Inspect, When, and Why It Matters at Altitude

Walk your Colorado Springs home every three months and check the specific spots that cause the expensive repair calls I get most often: under every sink, the water heater, exterior caulk and weatherstripping, and the basement or crawlspace. Most of those calls share the same history, a small leak or crack that went unnoticed for months (sometimes years) before it turned into a real bill. Colorado Springs adds its own wrinkles too: hard water on private wells (common in Black Forest, Falcon, and Monument), UV that breaks down caulk faster than the labels suggest, and 100+ freeze-thaw cycles a year. Print this list, save it, or keep it on your phone, and run through it every quarter.

Under Every Sink (Kitchen and All Bathrooms)

This is the highest-value check in the entire house, and if I could only get a homeowner to do one thing off this whole list, it’d be this one. Slow leaks under sinks cause cabinet damage, damage to the subfloor (the wood layer under your finished floor), and mold. All of these are expensive to repair and easy to miss until they’re bad.

Open every cabinet under every sink. Look for:

• Water stains on the cabinet floor or walls, meaning dark discoloration or mineral deposits (white or rust-colored rings)
• Soft, spongy, or discolored cabinet flooring
• Any moisture on the supply line connections (the braided metal lines that run from the shutoff valves up to the faucet)
• Moisture around the drain P-trap (the curved pipe under the drain)
• Standing water or puddles of any size

Feel the cabinet floor with your hand. A floor that feels slightly damp or soft to the touch is a flag even if there’s no visible water. If your home is on a private well, mineral buildup around fittings is also worth cleaning and watching. It points to slow seepage that has been happening long enough to leave deposits.

What to do: Minor drips at compression fittings (the nut-and-ring connectors where a pipe joins a valve) can often be fixed by tightening them. Supply lines older than 10 years should be replaced no matter how they look. They are a common cause of sudden failures. If you see soft subfloor or mold, call a professional.

Toilets

Check each toilet quarterly:

• The base: Get down and look at the floor around the toilet base. Any discoloration, soft flooring, or staining suggests the wax ring seal is failing. The wax ring is the wax gasket that seals the toilet to the drain pipe under the floor. Left unaddressed, a failing seal slowly destroys the subfloor.
• The tank: Lift the lid and look inside. The flapper, fill valve, and float should all be visible and intact. Listen after flushing. A toilet that runs on and off (fills briefly for no reason) has a failing flapper. This wastes a lot of water over time.
• The supply line: Same as under sinks. Check for moisture at the connection point.
• Rock the toilet: A toilet that moves when you sit on it has either a failing wax ring or loose floor bolts. Both are simple repairs when caught early, expensive when the movement has been causing subfloor damage for years.

Water Heater

Inspect quarterly, flush annually.

Visual check:

• Look at the base and surrounding floor for any moisture or water stains
• Check connections at the top (cold water in, hot water out, pressure relief valve) for mineral buildup or corrosion
• Look at the pressure relief valve. It is a safety valve on the side or top of the tank, with a small pipe running from it down to the floor. If that pipe is dripping, the valve is releasing pressure and the water heater needs professional attention

Listen:

• A water heater that makes popping, rumbling, or knocking sounds during heating has a layer of sediment (hardened mineral gunk) built up on the bottom of the tank. The noise is water bubbling up through that layer, and it’s one of the most common “is this normal” calls I get. Colorado Springs city water is soft to moderately hard, but homes on a private well often have harder water, which builds sediment faster. Annual flushing removes it and extends heater life.

Age:

• Most water heaters last 8–12 years, often shorter for homes on hard well water where sediment isn’t flushed regularly. If yours is approaching that range, start budgeting for replacement before it fails. Water heaters often fail at the worst possible time, and a failed tank in a finished space can cause major water damage.

To flush: Attach a garden hose to the drain valve at the base, run the hose to a floor drain or outside, turn off the cold water supply, open the drain valve, and let it run until the water clears. Takes 20–30 minutes. Do this annually.

Exterior Caulk and Weatherstripping

Check twice a year: before winter, and again in early spring after the worst of the freeze-thaw season.

Windows and doors: Look at the caulk bead around the exterior frame of every window and door. At altitude, UV exposure breaks down silicone and acrylic caulk significantly faster than at lower elevations. Look for:

• Cracking or checking (small surface cracks)
• Shrinkage away from the window frame or wall surface
• Gaps or separations
• Missing sections

Any of these let water and air leak in. Recaulking is a low-cost DIY project or a cheap handyman call.

Penetrations: Check caulk around any pipe, wire, or duct that passes through an exterior wall: outdoor faucets (hose bibs), dryer vents, gas lines, and electrical conduit. These are common entry points for both water and insects.

Weatherstripping: Open and close every exterior door. The door should compress the weatherstripping slightly along its full perimeter when closed. Daylight visible around the frame, or a drafty door that used to be tighter, indicates worn weatherstripping. Replacement is inexpensive and makes a noticeable difference in heating costs.

Basement or Crawlspace

Check quarterly, especially after significant rain or snowmelt.

Basement:

• Look for any water staining on the walls, particularly at floor level and in corners
• Check the floor for moisture. A wet basement floor after rain points to a drainage or waterproofing problem
• Look for white, chalky deposits on concrete walls (called efflorescence). It means water is moving through the wall, even if the wall looks dry right now
• Check window wells for standing water or debris blocking drainage

Crawlspace (if applicable):

• Look for any standing water
• Check the vapor barrier (the plastic sheet laid over the crawlspace soil). It should be intact and cover the soil completely
• Look for condensation on floor joists or insulation, which indicates a humidity or ventilation problem
• Check for any signs of pests: mud tubes (termites), gnaw marks, or droppings

HVAC System

Monthly:

• Check and replace the air filter. In Colorado Springs, where the air is dry and dusty, filters clog faster than the manufacturer’s schedule suggests. A clogged filter reduces system efficiency and strains the blower motor. Check monthly, replace when it looks gray.

Annually (before heating season):

• Have the furnace serviced by an HVAC technician: burner cleaning, heat exchanger inspection, blower check, and thermostat calibration. The heat exchanger is the metal chamber that keeps the furnace’s exhaust fumes separate from the warm air blown into your rooms. A cracked one can let those fumes into your living space, which is a serious safety concern.
• Test the CO detector in every sleeping area.

Smoke and CO Detectors

Test monthly by pressing the test button. Replace batteries annually even if they’re still working. The cost of a battery is not worth the risk of a dead detector when you need it.

Replacement schedule:

• Smoke detectors: every 10 years from manufacture date (printed on the back)
• CO detectors: every 5–7 years from manufacture date

Placement:

• Smoke detectors: on every level of the home, inside each sleeping area, and outside each sleeping area
• CO detectors: within 15 feet of all sleeping areas. Colorado law requires CO detectors in all homes with fuel-burning appliances or attached garages.

Exterior Flatwork and Foundation

Check annually in spring after freeze-thaw season.

• Look for new cracks in concrete driveways, walkways, and patios. Colorado’s 100+ freeze-thaw cycles each year slowly widen cracks that are already there. Small cracks caught early can be sealed cheaply. Cracks that have been lifting and shifting through multiple seasons become a trip hazard and a bigger repair.
• Look at the ground level around your foundation. Soil should slope away from the house, dropping at least 6 inches over the first 10 feet. Soil that has settled flat or toward the house is directing drainage toward the foundation.
• Check window wells for drainage. A window well full of debris and standing water is a path for water into the basement.

One Final Note

This checklist isn’t about finding problems. It’s about catching them while they’re still small. Most of the items above, addressed early, are repair calls of a few hundred dollars or less. Left until they’re visible from across the room, they become projects of several thousand, and those are the calls I hate taking most, because they were so easy to prevent.

The fifteen minutes you spend walking through this list every quarter is the best maintenance investment available.

Jonathan Shea is the owner of The Colorado Handyman, serving Colorado Springs and the Pikes Peak region. Flat-rate written estimates, no hourly billing surprises. Licensed and insured with $2M general liability coverage.

Get a free written estimate: Contact The Colorado Handyman or call (719) 243-9718.