Published:
February 5, 2013
Last updated:
May 13, 2026
6 Tips For Buying An Older Home in WA

Key Takeaways

  • Hire a professional home inspector to check for structural, foundation, roof, and moisture issues.
  • Older wiring, iron pipes, and aging HVAC systems can create safety risks and costly repairs.
  • Knob-and-tube wiring or outdated plumbing may make homeowners insurance and mortgage approval harder.
  • Test older homes for asbestos and check for lead-based paint before buying.
In This Article

Summary: Are you thinking of buying an older home? If so, there are certain things that you need to look out for, which we will discuss in this article.

Older homes sometimes offer more charm and character than the newer houses of today. They boast gabled roofs, crown moldings, hardwood floors and antique fixtures, among other things. These are traits you’d be hard=pressed to see in modern home construction.

Buying an old house is like buying a piece of local history. Its beautiful period features can give it a timeless beauty and grace that is hard to resist.

However, buying a house from another era can be an endeavor fraught with potential problems. Older houses are not necessarily built to the same electrical or plumbing standards of today. Plus, if they have not been maintained correctly through the years, they can turn into a serious money pit or a potential hazard.

If you’re planning to buy an older home, there are certain precautions you should take to protect yourself.

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6 Tips For Buying An Older Home in Washington State

Here are six home buying tips to keep in mind if you are considering buying an older home:

Always hire a professional real estate inspector.

Bring a professional home inspector with you before you seal the deal on a home to take a close look at the property. A professional inspector is trained to spot structural damage or issues that might seem minor, but may cause major problems in the future.

Foundation and structural movement

Older homes can sometimes show signs of settling or shifting over time. Foundation and structural movement can lead to larger repair concerns, so it is important to have any signs of movement reviewed carefully during the inspection process.

Look for signs of moisture damage.

Many old houses have problems with moisture because over the years they have settled. If there is any damage from moisture or water, there could be mold in the home, which can be a hazard. Be on the lookout for any signs of water or moisture damage before you put in an offer.

Roof condition and age

The roof is another important area to review when buying an older home. An aging or worn roof can contribute to water intrusion and other maintenance concerns, so it is wise to pay close attention to its condition.

Look out for old wiring.

If the old house you are considering has vintage wiring, such as the knob-and-tube technology that was popular around the 1920s and 1930s, plan to completely update the wiring for your safety. But having said that, many home insurance providers may not agree to insure the home if it has knob and tube wiring. And if you can’t get insurance off the bat, your lender may not agree to supply you with a mortgage.

You might need to add insulation.

Many older homes don’t have insulation in the walls or attic, which can increase the size of your energy bill. You’ll need to plan to add that to your budget if you decide to buy the home.

Heating and cooling system age

It is also a good idea to consider the age of the home’s heating and cooling systems. Older systems may be less efficient or closer to needing replacement, which can affect your budget after purchase.

Be on the lookout for iron pipes.

Iron pipes which were popular up until 1940. But they can become clogged with rust and may need to be replaced. Again, this could be an issue in terms of getting homeowners insurance.

Sewer line condition

Along with interior plumbing, the sewer line is worth checking when evaluating an older home. Problems with the sewer line can be difficult and costly to address, so it is helpful to understand its condition before moving forward.

Have the house tested for asbestos.

If the home was built before the 1960s, the odds are pretty good that there is asbestos in the home. Asbestos was commonly used a building material in construction because of its fire retardant properties and affordability. But it can also be a hazard if it becomes airborne and people are exposed to it. If you suspect that there is asbestos in the home, have it tested.

Lead-based paint

Another potential hazard in older homes is lead-based paint. If present, it can be a concern during repairs or renovations, so it is worth identifying and evaluating as part of your due diligence.

These are just a few things to which to pay attention to when buying an older home.

Take time to inspect the property thoroughly. With proper attention, you can mix today’s modern technology with your home’s period features to create a combination of charm and safety.

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Have Questions About Mortgages?

Are you curious about home loans? Sammamish Mortgage can help! We are a local, family-owned company based in Bellevue, Washington. We have been serving the entire state, as well as the broader Pacific Northwest region that includes Idaho, Colorado, California, and Oregon since 1992. We offer a wide variety of mortgage programs, including our Diamond Homebuyer ProgramCash Buyer Program, and Bridge Loans. Visit our website to get an instant rate quote or to use our online mortgage calculator. Or, contact us if you’re ready to get pre-approved for a mortgage.

FAQs

What should you look for when buying an older home?

Look closely at the home’s structure, moisture issues, electrical wiring, insulation, plumbing, and possible asbestos. A professional inspection can help identify hidden problems before closing.

Is a home inspection important for an older house?

Yes. Older homes can have aging systems and concealed damage that are easy to miss without a trained inspector. A professional inspection can reveal structural, safety, and maintenance concerns.

Why is moisture damage a concern in older homes?

Moisture damage can signal leaks, poor drainage, settling, or long-term water intrusion. It can also lead to mold growth and costly repairs if it is not addressed.

Should you be concerned about old electrical wiring in an older home?

Yes. Outdated wiring, including knob-and-tube systems, can create safety concerns and may require replacement. Some insurers and lenders may also have concerns about older electrical systems.

Do older homes usually need more insulation?

Many older homes have limited insulation in the walls or attic. Adding insulation can improve comfort and energy efficiency, but it should be included in your budget planning.

Are iron pipes a problem in older houses?

They can be. Older iron pipes may corrode, clog with rust, and restrict water flow over time. In some cases, replacement may be necessary.

Should an older home be tested for asbestos?

Yes, especially if the home was built before modern material standards changed. Asbestos can be hazardous when disturbed and airborne, so testing by a qualified professional is important if it is suspected.

Can older homes be harder to insure?

Yes. Insurance providers may be cautious if a home has outdated wiring, old plumbing, or other safety concerns. It is wise to confirm insurability before finalizing the purchase.

Can problems in an older home affect mortgage approval?

Yes. If the property has major safety or condition issues, it may create challenges with insurance or lender requirements. Addressing these concerns early can help avoid delays.

Is buying an older home still worth it?

It can be, especially if you value character and period details. The key is understanding the home’s condition, planning for repairs or upgrades, and making sure the property is safe and financially manageable.