Home Inspection Checklist Download
Buying a home is one of the largest financial decisions most people will ever make. While a house may look perfect during a showing, hidden problems can quickly turn your dream home into an expensive repair project. A thorough home inspection helps buyers identify potential issues before closing and provides leverage for negotiations, repairs, or price adjustments.
When scheduling your home inspection, ask your realtor for a referral to reputable home inspection companies. Not all home inspections are equal. In many cases home inspectors come in to check that everything is in working order, but not all providers of this service will present you with a detailed and comprehensive report which is critical for making informed decisions or placing leverage on negotiations.
Whether you are purchasing your first home or adding to your investment portfolio, understanding what to inspect can save you thousands of dollars and countless headaches. Here are the key areas every buyer should carefully evaluate before signing on the dotted line.
1. Furnace and Air Conditioning Age (Insurance Rating and Eligibility Factor)
Heating and cooling systems are among the most expensive components in a home to replace. Before buying a house, determine the age, condition, and maintenance history of its furnace and air conditioning unit.
Often the age of units can be determined by their Model or Serial numbers.
Most furnaces last approximately 15–20 years, while central air conditioning systems typically last 10–15 years. If the system is nearing the end of its lifespan, you may need to budget for replacement soon after moving in.
In the event the Furnace is greater than 20 years of age, request the sellers to provide the documents for service history on the unit. Often insurance companies will require annual inspection and servicing of furnaces greater than 20 years of age to qualify for coverage.
Pay attention to warning signs such as:
• Uneven heating or cooling
• Yellow and Red pilot flames
• Loud noises during operation
• Rust or corrosion
• Dirty or clogged filters
• Weak airflow
• Frequent repairs
A professional HVAC inspection can help determine whether the system is functioning efficiently or if major repairs are likely in the near future. An outdated system may also increase monthly utility bills due to poor energy efficiency.
2. Window and Frame Condition
Windows play a major role in energy efficiency, ventilation, and overall comfort. Damaged or aging windows can lead to drafts, moisture problems, and costly utility bills. Since windows pose one of the largest exposures to heat gain and loss, it is important to understand how they may impact your utility costs.
When inspecting windows, check for:
• Cracked or broken glass
• Condensation between panes
• Difficulty opening or closing
• Drafts or air leaks
• Rotting wood frames
• Water stains around trim
• Missing caulking or weather stripping
Older single-pane windows may not provide adequate insulation compared to modern double- or triple-pane options. Window replacement can be expensive, so it is important to understand the condition of the existing windows before purchase.
If the windows are within 10 years of age from installation, ask the seller if they can transfer any warranty programs upon sale of the home.
Also examine the exterior trim and surrounding siding for signs of moisture intrusion. Water entering around improperly sealed windows can lead to mold, structural damage, and interior wall deterioration.
3. Electrical Updates and Wiring Type (Insurance Rating and Eligibility Factor)
Electrical systems are critical for both safety and functionality. Older homes may contain outdated wiring that can create fire hazards or limit your ability to safely power modern appliances and electronics.
During a home inspection, identify the type of electrical system and determine whether updates have been completed. Key items to review include:
• Electrical panel capacity
• Type of wiring
• Grounded outlets
• GFCI protection near water sources
• Exposed or damaged wiring
Older wiring types, such as knob-and-tube or aluminum wiring, may require replacement or specialized insurance coverage. Federal Pacific and Zinsco electrical panels are also commonly flagged due to safety concerns.
Look for flickering lights, warm outlets, or overloaded extension cords, which may indicate insufficient electrical capacity. A licensed electrician can provide a more detailed evaluation if concerns arise during the inspection.
Modern homes generally require at least 100- to 200-amp service to accommodate today’s electrical demands. Ensuring the system is updated can prevent expensive upgrades later.
If you have electric vehicles, ensure that your electrical service is 200-amp or greater to ensure electrical capacity can support EV charging.
4. Roof Age and Roofing Material (Insurance Rating and Eligibility Factor)
A roof protects the entire structure of a home, making it one of the most important components to inspect. Roof replacement costs can easily reach tens of thousands of dollars, depending on the size and materials used.
Start by determining the age and type of roof. Common roofing materials include:
• Asphalt shingles
• Metal roofing
• Clay or concrete tile
• Wood shake
• Slate
Asphalt shingle roofs typically last 15–30 years, while metal and slate roofs may last significantly longer. Ask the seller when the roof was last replaced and whether repairs have been completed. Often times you can also look up this information independently through city websites or calling the Building Permit office to request public records.
Signs of roofing problems include:
• Missing or curling shingles
• Sagging roof lines
• Moss or algae growth
• Water stains in the attic
• Soft spots or leaks
• Damaged flashing around vents and chimneys
Inspect the attic for signs of moisture, mold, or poor ventilation. Improper ventilation can shorten roof life and contribute to higher energy costs.
Even if the roof is not actively leaking, an aging roof may become a negotiating point during the purchasing process if replacement will be necessary.
5. Signs of Water Damage Near Sinks, Tubs, and Showers
Water damage is one of the most common and costly issues found during home inspections. Bathrooms, kitchens, laundry rooms, and plumbing fixtures should be carefully examined for leaks and moisture problems.
Inspect areas around sinks, tubs, showers, and toilets for:
• Soft or warped flooring
• Loose tiles
• Mold or mildew odors
• Bubbling paint or drywall
• Water stains on ceilings or cabinets
• Active leaks under sinks
• Damaged caulking or grout
Small leaks can lead to major structural damage if left untreated. Moisture trapped behind walls or beneath flooring may also create mold growth, which can affect indoor air quality and require expensive remediation.
Check the water pressure and drainage throughout the home. Slow drains or inconsistent water pressure may indicate plumbing problems that require further investigation.
If possible, inspect the basement or crawl space for evidence of previous water intrusion, foundation cracks, or sump pump issues.
How Much Does a Home Inspection Cost?
A home inspection can cost anywhere from $200 on the low end to $450. As inflation rises this price could increase and the cost depends on the home’s size, location and age.
Always hire a qualified home inspector before finalizing your purchase. Their expertise can reveal critical issues not visible during a walk-through.
Final Thoughts
A home inspection is more than a routine step in the buying process; it’s an opportunity to uncover hidden issues before they become your financial responsibility.
Protect your new investment from day one. Contact ONYX Insurance Brokers to discuss homeowners insurance options tailored for your new home. We also have a list of trusted professionals who can help you make the right decisions during the home buying process.


