Faulty wiring—open junction boxes, amperage mismatches, no wire nuts on wires.
The cure: Settle junction boxes; update to at least 100 amps.
Poor grading and drainage—spongy soil around the foundation, signs of leaking in the basement.
The cure: Regrade so that grounds slopes away from the house for 10 feet; remove porous material around the foundation.
Faulty gutters—clogged or bent gutters, water not channeled away from the house.
The cure: Preventive maintenance; gutters of adequate size, splash pans to divert run-off.
Basement dampness—water stains, powdery residue on walls, mold or mildew.
The cure: Repair gutters to channel water away from the house; apply waterproof coatings to the basement.
Roof problems—brittle or curled shingles; broken or missing flashings.
The cure: Apply new shingle, or tear off if needed (usually after three re-roofs ); replacing flashings, especially around chimneys and other protrusions.
Foundation flaws—cracks in foundation, sloping floors, sticking doors or windows.
The cure: Fill cracks with silicon caulking or epoxy; apply waterproof coating to the exterior.
Poor upkeep—needs repainting, worn carpeting, cracked driveway.
The cure: Give the house a minor facelift.
Faulty plumbing—inadequate water pressure, slow drains, signs of leaks on ceilings.
The cure: Clean and rout drain; reseat toilet with a new wax ring, repair leaks.
Poor ventilation—extreme heat in the attic, vapor condensation.
The cure: Ensure that roof soffits are not blocked; install additional roof vents; vent bathroom and kitchen fans outside.
Defective heating—cracks in the heat exchanger or water tank; carbon monoxide leaks.
The cure: Reseal chimney flues; replace sacrificial anode in the water heater.