1. Structural Integrity and Foundation

Exterior Inspection

• Cracks in Masonry or Stucco: Look for diagonal or stair-step cracks in brickwork or concrete foundations. Hairline vertical cracks are common due to natural settling, but horizontal cracks or vertical gaps wider than a quarter inch often signal severe foundation movement.
• Roofline and Chimney: Step back to view the ridge line of the roof. Sagging rooflines or leaning chimneys indicate structural timber rot or severe foundation settling.

Interior Inspection

• Floor Leveling: Walk across the home to feel for noticeable slopes or sagging areas. Doors that stick, swing open on their own, or fail to latch properly often indicate frame shifting caused by foundation movement.
• Basement or Crawl Space Check: If accessible, check for exposed joists. Look for dark water stains, wood rot, or white powdery deposits on masonry walls (efflorescence), which indicate chronic water intrusion.

2. Roofing and Exterior Framing

• Roofing Material Condition: Check for missing, curled, or cracked shingles. On historic homes with slate or tile, look for broken pieces or uneven lines that suggest failing fasteners underneath.
• Multiple Shingle Layers: Older homes sometimes have multiple layers of asphalt shingles applied directly over old ones to save removal costs. Most building codes allow a maximum of two layers; three or more require a complete teardown during replacement, adding significant cost.
• Flashing and Gutters: Check the metal flashing around chimneys, valleys, and skylights. Rusted or missing flashing is the main entry point for roof leaks. Ensure gutters are properly secured and slope down away from the home’s perimeter walls.

3. Plumbing Systems and Materials

Practical Plumbing Tests

• Water Pressure Drop: Turn on the bathroom sink faucet and shower simultaneously, then flush the toilet. A dramatic drop in water volume suggests narrowed galvanized supply pipes filled with mineral scale.
• Drainage Speed: Fill sinks and tubs completely, then pull the stoppers. Gurgling sounds or slow drainage indicate partial main line blockages or inadequate vent piping.

4. Electrical Panel and Wiring

Electrical Panel Evaluation

• Amperage Capacity: Older homes often feature 60-amp or 100-amp service panels. Modern homes generally require a 200-amp service panel to run modern appliances, HVAC systems, and electronics safely.
• Fuse Boxes: If the home still utilizes a screw-in fuse box instead of a breaker panel, budget for an immediate panel upgrade. Many insurance carriers refuse coverage for homes operating on active fuse panels.
• Obsolete Panel Brands: Look for panels manufactured by Federal Pacific Electric (Stab-Lok) or Zinsco. These specific panels have high failure rates where breakers fail to trip during an overload, creating severe fire hazards.

Branch Wiring Concerns

• Knob-and-Tube Wiring: Used from the late 1800s through the 1940s, this system uses exposed wires routed through porcelain tubes. It lacks a grounding wire and can become a severe fire hazard if surrounded by modern thermal insulation.
• Ungrounded Two-Prong Outlets: Common in homes built before 1962. Converting these to standard three-prong outlets requires running new grounded wire back to the panel or installing GFCI protection.

5. Heating, Ventilation, and Air Conditioning (HVAC)

• Equipment Age: Locate the serial number on the furnace, boiler, or heat pump to determine its manufacture date. Most traditional forced-air furnaces last 15 to 20 years, while heat pumps last 10 to 15 years.
• Ductwork Condition: Look for uninsulated metal ducts in unconditioned crawl spaces or attics. In very old homes, check if conversion from gravity furnaces left large, uninsulated ducts that leak heated air.
• Boiler Systems: Cast iron boilers used for radiator heating can last 30 to 50 years, but circulation pumps, zone valves, and expansion tanks require regular maintenance and periodic replacement.

6. Environmental and Health Hazards

• Lead Paint: Homes built prior to 1978 likely contain lead-based paint. Check window sills, door frames, and baseboards for peeling, chipping, or alligator-skin cracking patterns.
• Asbestos Insulation and Tile: Look for gray or silver vermiculite insulation in attics, fibrous pipe wrapping on basement boilers, or 9×9-inch vinyl floor tiles in basements. These materials are harmless if intact and left undisturbed, but remediation costs can be substantial if you plan to remodel.
• Rot and Mold: Smelling a persistent musty odor during a walkthrough suggests active moisture retention behind walls or beneath flooring.

7. Windows, Doors, and Insulation

• Original Single-Pane Windows: Check whether windows are original single-pane wood units. If they are, evaluate whether they have functional storm windows attached. Replacing an entire home’s worth of custom-sized older windows with modern energy-efficient units is a major investment.
• Attic Insulation Depth: Open the attic hatch and inspect the depth and coverage of the insulation. Older homes often have inadequate insulation depth (less than 10 to 12 inches), leading to heavy heat loss in winter and ice dams on the roof edge.

How to Structure Your Offer Based on Inspection Findings

1. Include a Specific Inspection Contingency

2. Request Credits Over Direct Repairs

3. Factor Immediate Capital Expenditures Into Your Initial Price