10 Expensive Problems to Watch for in Older DuPage County Homes

Older DuPage County homes can offer mature streets, established locations and architectural character. They can also contain expensive systems that are invisible in listing photos. The goal is not to avoid older homes. It is to separate manageable maintenance from a collection of deferred problems.

1. Sewer service and underground piping

A finished basement and updated kitchen reveal little about the sewer line. Older clay or cast-iron components can be affected by roots, settlement or deterioration. Ask the inspector and attorney whether a sewer scope is appropriate and confirm responsibility for the service line.

2. Water intrusion and drainage

Fresh paint can conceal stains without correcting the cause. Look at grading, gutters, downspouts, window wells, sump systems, foundation cracks and signs of prior water. Ask for documentation of drainage work and insurance claims when relevant.

3. Electrical capacity and obsolete components

An older home may have a modern panel but older branch wiring, limited circuits or ungrounded outlets elsewhere. Evaluate the service size, panel, visible wiring, GFCI protection and the electrical demands of modern appliances, EV charging and HVAC equipment.

4. Additions and unverified permits

A rear addition, converted attic or finished basement may add useful space, but buyers should verify permits and understand how the work was constructed. Municipal records, tax records and MLS square footage may not match.

5. Roof, flashing and masonry

Roof age matters, but installation details and flashing can matter just as much. Chimneys, parapets, valleys, flat-roof transitions and masonry joints deserve attention. Water can travel before appearing indoors.

6. Heating, cooling and ventilation

Check age, maintenance and configuration. Some older homes have additions that are difficult to heat or cool, multiple systems, boiler components or improvised ductwork. A functioning system is not automatically an efficient or well-balanced one.

7. Lead-based paint

Federal law generally requires specific disclosures for most pre-1978 housing. The EPA's real estate disclosure guidance explains the buyer's right to receive information before becoming obligated under a contract. Do not disturb suspected lead paint without proper guidance and safe practices.

8. Radon

Radon cannot be judged by neighborhood or the age of a house. Illinois states that homes with elevated radon have been found throughout the state and recommends testing regardless of location. Review the Illinois real estate radon guidance and use qualified professionals.

9. Foundation movement and structural alterations

Cracks are not all equal. Also look for removed walls, altered framing, sagging, additions and unusual supports. A general inspector may recommend evaluation by a structural engineer when a condition exceeds the inspection's scope.

10. Insulation, air sealing and aging windows

Comfort problems can come from the entire building envelope, not one window. Attic insulation, air leakage, rim joists, doors and mechanical efficiency work together. Evaluate the likely improvement plan rather than assuming replacement windows solve everything.

How to make an older-home offer intelligently

• Budget for inspections beyond the standard home inspection when warranted

• Read disclosures without treating them as a substitute for inspection

• Request permits and invoices for major work

• Compare the condition with truly similar sold homes

• Keep an emergency reserve after closing

• Use licensed specialists for environmental, structural and mechanical questions

Frequently asked questions

Is a century-old home automatically riskier than a newer home?

Not automatically. A well-maintained older home may be more predictable than a newer property with poor construction or deferred maintenance. Documentation and condition matter.

Should every buyer order every specialty inspection?

No. Inspection scope should reflect the property, disclosures and observations. Discuss options with the inspector, attorney and appropriate specialists.

Can inspection findings be negotiated?

Contract language, market conditions and the nature of the issue matter. Your attorney should guide legal notices and requests.

Compare condition before charm takes over

John Salidas helps buyers compare the visible appeal and the less visible ownership costs of DuPage County homes. Request a property tour to evaluate candidate homes side by side.

This article is general information and does not replace an inspection, environmental assessment, engineering opinion or legal advice.