A Homeowner’s Questions: A Home Inspection in Carlsbad, CA

Dec 2, 2024

5 min read

Updated: Oct 11

Every homeowner has similar concerns and questions related to maintaining their home. The following questions are those that all homeowners ask themselves:

Learn what's included in our full home inspection services.

“How do things in my house work?”
“How do I maintain them?”
“What does a real problem look like?”
“How should it be corrected?”

This guide walks through the main systems of a typical San Diego County home: how each one works, what routine maintenance looks like, and what a real problem looks like when you see it. It covers the same ground as a home inspection, written for homeowners who want to understand their house between inspections.

The main systems of a residential building include the following:

roof;
exterior;
basement, foundation, crawlspace, and structure;
heating;
cooling;
plumbing;
electrical;
fireplace;
attic, insulation, and ventilation;
doors, windows, and interior.

Roof

Your roof sheds water and protects everything beneath it. In coastal San Diego County, most roofs are concrete or clay tile or asphalt composition shingle. Tile roofs last a long time, but the underlayment beneath the tiles does the waterproofing, and it wears out sooner than the tiles themselves.

Maintenance: Clear leaves and debris from gutters and roof valleys before the rainy season. Scan the roof from the ground for cracked, slipped, or missing tiles or shingles. Avoid walking on tile roofs, since tiles break easily underfoot.

Signs of a real problem: Water stains on ceilings, granules collecting in gutters, sagging roof lines, or daylight visible in the attic. A licensed roofing contractor should evaluate and repair these. For a close look without anyone walking on the roof, see our drone roof inspection services.

Exterior and Drainage

Stucco walls, grading, gutters, and downspouts work together to keep water away from your home. Water is the most common source of damage to any house.

Maintenance: Keep soil and mulch at least 4 inches below the weep screed, the metal edge at the bottom of stucco walls. Make sure downspouts discharge away from the foundation and that the ground slopes away from the house.

Signs of a real problem: Stucco cracks that are wider than a hairline or offset from each other, staining at the base of walls, or water pooling against the foundation after rain. A stucco contractor or drainage specialist can address these.

Foundation and Structure

Most San Diego County homes sit on a concrete slab or a raised foundation over a crawlspace. Small shrinkage cracks in concrete are normal and expected.

Signs of a real problem: Doors or windows that suddenly begin sticking, stair-step cracks in block walls, noticeably uneven floors, or cracks that grow over time. These call for an evaluation by a structural engineer.

Heating and Cooling

Most homes here use a forced-air furnace, and many add central air conditioning or a heat pump.

Maintenance: Replace filters every one to three months, schedule annual service, and keep outdoor units clear of plants and debris.

Signs of a real problem: Unusual noises, a system that turns on and off frequently, or uneven temperatures between rooms. If you ever smell gas, leave the home and call SDG&E or 911 from outside. A licensed HVAC contractor should handle repairs.

Plumbing

Your plumbing brings clean water in and carries waste out. Every adult in the household should know where the main water shutoff is.

Maintenance: Check under sinks periodically for moisture, and follow the manufacturer's recommendations for flushing your water heater. California requires water heaters to be strapped against earthquakes, so confirm the straps are in place.

Signs of a real problem: Water stains, low water pressure, discolored water, or older piping materials such as polybutylene. A licensed plumber can evaluate and correct these.

Electrical

The electrical panel distributes power throughout the home and protects circuits from overloads. GFCI outlets in kitchens, bathrooms, garages, and outdoors protect against shock.

Maintenance: Test GFCI outlets monthly using the test and reset buttons, and label your panel's breakers so you can find them quickly. Never remove the panel cover yourself.

Signs of a real problem: Outlets that feel warm or buzz, breakers that trip frequently, flickering lights, or certain older panel brands with known safety concerns. A licensed electrician should evaluate these.

Fireplace

Maintenance: Have wood-burning fireplaces and chimneys inspected annually, and cleaned as needed, by a certified chimney professional.

Signs of a real problem: Cracked firebox masonry, smoke entering the room, or a damper that won't open or close.

Attic, Insulation, and Ventilation

The attic keeps heat and moisture under control for the whole house.

Maintenance: Look into the attic once or twice a year for stains on the underside of the roof, signs of pests, or insulation that has been disturbed.

Signs of a real problem: Moisture or mold on roof sheathing, rodent activity, or missing or compressed insulation.

Doors, Windows, and Interior

Maintenance: Replace worn weatherstripping and keep window tracks and weep holes clear so water can drain.

Signs of a real problem: Fogging between double-pane glass (a failed seal), stains below windows, or doors that no longer latch properly.

What a Home Inspection Can and Can't Tell You

A home inspection evaluates the visible and accessible parts of each of these systems as they are on the day of the inspection. Many components are hidden behind walls, under floors, or beneath finishes, so no inspection can find every problem. Most homes don't have major defects, but some do, and identifying them before you buy or sell is the main reason to get an inspection.

Between inspections, the routine maintenance above goes a long way toward catching small issues before they become expensive ones. When something looks wrong, the right next step is usually an evaluation by a qualified professional in that trade.

For homeowners, our inspection services in San Diego County include full home inspections for a periodic checkup, drone roof inspections ahead of the rainy season, and pool and spa inspections.

Frequently Asked Questions

How often should I have my home inspected after I buy it?

There's no set requirement, but many homeowners schedule a maintenance inspection every few years, and annually for older homes or homes with known concerns. A maintenance inspection catches small issues early and gives you a current picture of your home's condition.

Where is my main water shutoff valve?

In San Diego County homes, the main shutoff is often on an exterior wall near the front of the house, close to where the water line enters, or in the garage. There's usually a second shutoff at the water meter near the street. Find it before you need it, and make sure everyone in the household knows where it is.

How do I test a GFCI outlet?

Press the TEST button; the outlet should click and lose power. Then press RESET to restore power. Test GFCI outlets monthly. If one won't trip or won't reset, have a licensed electrician check it.

What should I do to prepare my home for the rainy season?

Before the rains arrive, clear leaves and debris from gutters and roof valleys, make sure downspouts discharge away from the foundation, check that soil slopes away from the house, and look for gaps in caulking around windows and doors. For a closer look at your roof without anyone walking on it, consider a standalone drone roof inspection, which documents the roof surfaces, flashings, and penetrations from above before the wet season.

When should I call a professional instead of handling it myself?

Call a professional for anything involving gas, the electrical panel, structural concerns like new or growing cracks, active roof leaks, or work that requires walking on a tile roof. If you ever smell gas, leave the home and call SDG&E or 911 from outside.