You’ve accepted an offer on your Des Plaines or Mount Prospect home. Then the inspection report lands: 22 pages, and a third of it is electrical. Double-tapped breakers. No GFCI in the kitchen. Federal Pacific panel. Open junction box in the attic. The buyer’s agent wants “all electrical items corrected by a licensed electrician.”
Before you panic or write a blank check, understand this: most items on an electrical inspection list are not code violations you’re legally required to fix. Illinois has no statewide requirement to bring an existing home up to current code before sale. What you have is a negotiation, and knowing which items are genuine safety issues, which are cheap goodwill fixes, and which are simply “not how we’d build it today” saves sellers thousands.
The Three Tiers of Electrical Inspection Items
Tier 1: Fix these — they kill deals and they’re real hazards
- Federal Pacific Stab-Lok or Zinsco panels. Documented breaker-trip failures. Many insurers won’t write a policy, and lenders increasingly flag them. This is the one item that genuinely stops closings.
- Aluminum branch wiring (1965–1973 homes) with no remediation. Needs COPALUM crimps or AlumiConn connectors at every device.
- Knob-and-tube still energized. Same insurance problem.
- Open splices, junction boxes without covers, exposed conductors. Cheap to fix, looks negligent if you don’t.
- Water heater, furnace or AC circuits without proper disconnect.
- Ungrounded three-prong outlets. Someone replaced two-prong receptacles with three-prong and created a false safety expectation. Fix or replace with GFCI protection.
- Missing or non-functioning smoke and CO alarms. Illinois does require these, and Des Plaines and Mount Prospect both enforce it.
Tier 2: Cheap goodwill — fix them because the optics beat the cost
- Double-tapped breakers (two wires under one lug) — usually $150–$400 to correct properly
- Missing GFCI protection in kitchens, baths, garage, exterior, unfinished basement — $180–$280 per location
- Missing AFCI in bedrooms (only where the panel accepts it)
- Reversed polarity outlets — $95–$150 each
- Loose or painted-over receptacles and cover plates
- Bathroom exhaust fan vented to attic instead of outside (frequently on the electrical page)
- Missing panel directory / unlabeled breakers — genuinely free goodwill
These items total a few hundred to about $1,500 in most homes and remove the “this house wasn’t maintained” impression that makes buyers scrutinize everything else.
Tier 3: Push back — grandfathered, not required
- 100-amp service. Adequate for many homes. Not a violation. If the buyer wants 200-amp for an EV charger or heat pump, that’s their upgrade, not your repair. (It is a fair concession item.)
- Two-prong outlets that are genuinely two-prong. Grandfathered.
- No AFCI throughout the house in a 1970s home.
- Kitchen with fewer countertop receptacles than current code requires.
- Cloth-sheathed NM cable that is intact and in good condition.
- Fewer circuits than a new build would have.
Wording matters in your response. “Item was compliant at time of construction and remains in serviceable condition” is accurate and defensible.
Typical Seller Correction Costs
| Item | Typical cost (2026, NW suburbs) |
|---|---|
| GFCI receptacle installation, per location | $180 – $280 |
| Correct double-tapped breakers, add breakers as needed | $150 – $450 |
| Replace failed / painted receptacles and switches (per device) | $95 – $165 |
| Close open junction boxes, correct splices (per box) | $110 – $220 |
| Smoke + CO alarm compliance, whole house | $350 – $900 |
| Add HVAC / water heater disconnect | $300 – $650 |
| Replace Federal Pacific panel (100A) | $1,900 – $2,900 |
| Replace panel and upgrade to 200A service | $2,800 – $4,800 |
| Aluminum wiring remediation (AlumiConn, per device) | $45 – $95 |
| Dedicated circuit added for appliance | $400 – $850 |
The Smart Play: Inspect Before You List
Sellers who get their own electrical inspection before listing consistently do better. Three reasons:
- You control the timeline. A panel swap scheduled six weeks out costs normal price. The same job with a closing in nine days costs a premium and risks the deal.
- You control the narrative. Handing buyers a completed repair list with permits and receipts kills the “what else is wrong?” spiral.
- You avoid double concessions. Buyers routinely ask for credits worth two to three times the actual repair cost. Fixing a $260 GFCI issue beats a $1,000 credit request.
We do pre-listing electrical assessments in Des Plaines and Mount Prospect for a flat fee, with a written report separated into exactly the three tiers above and prices next to each item. Your agent can price the strategy from it.
Permits: Don’t Skip Them Before a Sale
Both Des Plaines and Mount Prospect require permits for panel replacement, service upgrades and new circuits. Unpermitted work discovered at closing is worse than the original defect — title and lender questions get involved, and a buyer’s attorney can hold escrow over it. If you’ve had unpermitted electrical work done in the past, tell us; retroactive permitting is sometimes possible and is cheaper than a delayed close.
If the buyer’s real concern is capacity rather than safety, our panel and service upgrade work and circuit and wiring services cover it, and a documented 200-amp service is a legitimate listing feature in a market where buyers are shopping for EV and heat pump readiness.
A Real Example From a Des Plaines Listing
A 1968 split-level in Des Plaines went under contract last spring. The buyer’s inspection listed 19 electrical items and the agent asked for a $6,500 credit. Here’s how it actually broke down when we walked it:
- Genuine safety items (fixed): two open junction boxes in the crawl, a three-prong outlet with no ground in the family room, no GFCI in the kitchen or the exterior receptacle, and a missing furnace disconnect. Total: $1,140.
- Goodwill items (fixed): two double-tapped breakers, panel directory written out, four painted-shut receptacles replaced. Total: $620.
- Pushed back (documented, not fixed): 100-amp service “should be 200,” no AFCI in bedrooms, only two kitchen countertop circuits, cloth-sheathed NM in the attic in good condition, and two-prong outlets in two bedrooms.
Final outcome: $1,760 spent, permits pulled on the disconnect work, and a one-page letter from us explaining the grandfathered items. The credit request went away entirely. The seller’s alternative — accepting the $6,500 credit — would have cost nearly four times as much for the same closing date.
The pattern repeats because inspection reports are written to flag anything below current code, not to distinguish hazard from vintage. Your leverage is a licensed electrician’s written opinion separating the two.
Timing Your Repairs Around the Closing
Order of operations for a typical 30–45 day close:
- Days 1–3: Assessment and tiered quote. Decide with your agent what you’re fixing.
- Days 3–5: Pull permits for anything requiring them. This is the step that determines whether you close on time.
- Days 5–12: Non-permitted punch list in one visit — GFCIs, devices, junction boxes, alarms.
- Days 10–25: Permitted work (panel, service, new circuits), then village inspection.
- Before final walk-through: Deliver invoices, permit cards and inspection sign-offs as a packet.
That packet is worth more than the repairs. Buyers who receive documentation stop looking for problems; buyers who receive verbal assurances keep negotiating right up to the closing table.
Frequently Asked Questions
Am I legally required to fix electrical items before selling in Illinois?
Generally no. Illinois requires disclosure of known material defects, not code upgrades. Smoke and CO alarm requirements are the notable exception, and some municipalities require a transfer inspection — check with your village.
Does Des Plaines or Mount Prospect require a point-of-sale inspection?
Requirements vary and change; several Cook County municipalities do require a transfer stamp or inspection. Confirm with the village before listing so it doesn’t surprise you at closing.
Will a 100-amp panel stop my buyer’s mortgage?
Rarely on its own. Federal Pacific or Zinsco panels, active knob-and-tube, and unremediated aluminum wiring are the ones that trigger insurance and lender problems.
Should I upgrade to 200-amp before listing?
Only if your panel is unsafe, full with no room for the buyer to add anything, or you’re marketing to buyers who clearly want EV charging. Otherwise it’s a better concession chip than a pre-emptive expense.
How fast can you turn around inspection repairs?
Tier 2 punch-list items are usually one visit within a few days. Permitted panel work depends on village inspection scheduling — build in two to three weeks if you can.
Selling Soon? Get the List Before the Buyer Does
MMDS serves Des Plaines, Mount Prospect, Arlington Heights, Wheeling, Palatine, Schaumburg, Glenview, Northbrook, Skokie and Evanston. We’ll walk the house, test devices, evaluate the panel, and give you a tiered report with real numbers — so you negotiate from information instead of pressure.
Call (847) 221-6280 or book an assessment. Sunbit and PowerPay financing is available if repairs need to happen before your proceeds do.