When Your Furnace or AC Quits in a 78-Year-Old Evanston Home
Evanston's housing stock—Victorian ladies along Orrington, solid bungalows near Central Street, Tudor gems in the Northwestern neighborhoods—averages nearly eight decades old. That means original gravity furnaces converted decades ago, ductwork that meanders through balloon-framed walls, and condensers tucked into sideyard spaces barely wide enough for a ladder. When your system finally calls it quits, you need more than a box-truck drop-off. You need someone who understands how century-old homes breathe, how North Shore Gas permits work, and why a 96% AFUE furnace isn't always the right call for a chopped-up Victorian rental near Downtown Evanston.
Lake & Oak Co. project-manages HVAC replacement across Cook County's most character-rich housing. We coordinate EPA 608-certified, Chicago-licensed trade partners who've navigated hundreds of tight basements, low-clearance crawls, and tricky zoning conversations. You get a single point of contact, honest equipment recommendations, and the kind of local fluency that comes from working these neighborhoods daily.
Here's What Your HVAC Replacement Includes
- Complete removal and disposal of your old furnace, air handler, or air conditioner—no rusting carcass left in the basement
- New equipment installation sized correctly for your square footage and actual load, not the salesperson's commission
- Gas permit coordination with North Shore Gas and building permit filing with the Village of Evanston—handled from start to finish
- Refrigerant line inspection and adjustment so your new condenser doesn't starve or flood from undersized linesets
- Ductwork assessment to spot leaks, crushed runs, or missing returns that rob efficiency
- Energy rebate paperwork assistance for ComEd and utility programs that actually pay out
- Full system commissioning with airflow measurement, thermostat calibration, and a walkthrough so you know what you bought
What HVAC Replacement Costs in Evanston
Most Evanston HVAC replacements land between $6,000 and $14,000, depending on equipment type, fuel source, and how much ductwork detective work your home demands. A straightforward gas furnace swap in a 1,200 sq ft bungalow sits at the lower end. A split system with AC, a two-stage furnace, and significant duct sealing in a 2,800 sq ft Tudor pushes higher.
With a median home value around $470,000, Evanston homeowners typically opt for mid-to-upper efficiency equipment that balances upfront cost with long-term utility savings. Older homes often need supplemental work—new supply boots, return-air plenums, or flue liner replacements—that younger suburban builds skip entirely. We quote those clearly upfront, not as change orders three hours into demo.
Why Evanston Homeowners Choose Us for HVAC Replacement
1. Trade partners hold EPA 608 certification and City of Chicago HVAC contractor licensing
Refrigerant handling isn't optional—it's federal law. Our network includes only license-verified specialists who carry the credentials Cook County inspectors expect. You're not gambling on a handyman with a manifold gauge.
2. Gas permit coordinated with North Shore Gas, not left to chance
We handle the utility notification, the permit application with Evanston building, and the inspection scheduling. You don't chase down forms or wait on hold with the village.
3. Honest equipment recommendations—no upselling SEER 22 to a 1,200 sq ft bungalow
A 96% two-stage furnace in a poorly insulated rental is wasted money. We size equipment to your actual envelope, your actual usage, and your actual budget. If a single-stage 80% furnace makes sense, we'll say so.
A Recent Evanston Project: Two-Story Victorian Near Central Street
A client contacted us in late October with a 22-year-old furnace that cycled constantly and an AC condenser held together by rust and hope. The home—a classic two-story Victorian near Central Street—had been converted into two units decades ago, each with its own thermostat but sharing a single forced-air system that had never been properly zoned.
We coordinated a dual-zone replacement: a high-efficiency gas furnace with a variable-speed blower, a matching central AC condenser, and motorized dampers to give each floor independent control. Our trade partner rerouted a return trunk that had been kinked during a 1980s kitchen remodel, installed a new flue liner to meet current code, and walked both tenants through the new digital thermostats.
Permits cleared in eight business days. Installation took two full days. Both units now hold temperature independently, and the owner reported a 28% drop in winter gas bills by February.
What Evanston Clients Say
"Our Tudor near Northwestern needed a new furnace before winter, and I dreaded the permit dance with the village. Lake & Oak handled everything—North Shore Gas coordination, the building permit, even the follow-up inspection. The install was clean, the crew respected our hardwood, and the new system is quieter than I thought possible in a house this old."
— Laura N., Northwestern neighborhood
"We'd gotten three quotes, and two companies wanted to sell us a top-tier two-stage system for our 1,100 sq ft bungalow. Lake & Oak's partner recommended a straightforward single-stage furnace and explained exactly why. Saved us four grand and the system works beautifully. That's the kind of honesty you don't forget."
— Marcus T., near Dempster