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Open 24 hours · No overtime charge nights, weekends or holidaysServing 20 miles around Ypsilanti, MI · Flat-rate pricing

HVAC Installation & Replacement in Willis, Michigan

Willis is about 18 minutes from our shop in Ypsilanti. A properly sized furnace and air conditioner, installed by the owner, permitted and inspected, with a free estimate and no pressure to replace what can still be repaired.

Temprasure installs furnaces, air conditioners and heat pumps across Washtenaw County, and Willis is roughly 18 minutes from our shop on Lakeridge Drive in Ypsilanti. We know the housing here. The 1950s–80s rural ranches and farmhouses with scattered 2000s builds around Willis Road east toward Sumpter usually need the venting and return air looked at before a new high-efficiency furnace goes in, and the newer builds in 48191 usually have ductwork that was never sealed and a condenser pad that has settled. A new system from us accounts for those things in the estimate instead of discovering them on install day, and the estimate is free, written, and good for a long time.

Willis houses and what that means for hvac installation

The typical Willis house is a 1950s–80s ranch on a crawlspace or a shallow block basement, built by a farm family or an auto worker on a piece of split-off land, and heated by a furnace that has been replaced once or twice without anyone enlarging the ductwork. Many of these were originally on fuel oil, and we still find abandoned oil tanks in basements and oil-to-gas conversion furnaces that are long past their design life. The farmhouses along Bunton and Tuttle Hill Roads are 1870s–1920s two-stories with Michigan basements and a forced-air system threaded in after the fact, usually with cold upstairs bedrooms as the result. Scattered 1990s–2010s acreage homes are colonials and ranches on full basements with 80 or 90 percent furnaces, more often propane than natural gas. Manufactured and modular homes are a larger share of the housing here than in the rest of the county, and their package units and small downflow furnaces are a regular part of our work.

Ductwork in Willis decides whether a new system performs. The sheet-metal trunk and flex branch runs in the 1950s–80s rural ranches and farmhouses with scattered 2000s builds subdivisions around Willis Road east toward Sumpter were often installed fast and never sealed, and the returns were undersized from the day the house was built. A new variable-speed furnace and a properly charged air conditioner cannot fix a return that starves the blower. Our Manual D check on every Willis install measures the existing duct capacity against what the new equipment needs. When the ducts are adequate we say so; when they need a larger return, a sealed trunk or a rerouted branch to the room over the garage, we quote it as a separate line so you can see exactly what the ductwork is costing and decide with full information.

Willis homeowners reach us from the Willis crossroads at Willis and Rawsonville Roads, Bunton Road corridor, the blocks around the Willis Road and Rawsonville Road corner and everywhere in between. The drive from Ypsilanti is roughly 18 minutes, which is close enough that a system failing at dinnertime can usually be seen the same evening. The 1950s–80s rural ranches and farmhouses with scattered 2000s builds common here have the kind of mixed equipment ages that make a whole-system diagnosis worth doing: a newer condenser on an old coil, a furnace from one decade and a thermostat from another. We untangle that, explain it, and fix what actually needs fixing.

Local details we plan around in Willis

  • All homes are on septic, and high-efficiency furnace condensate needs a neutralizer or a discharge point that does not feed the drain field.
  • Permits for Willis addresses go through Washtenaw County's building department, and inspections are scheduled on the county's southern-township rotation.
  • DTE gas follows Rawsonville Road and Willis Road through the crossroads, but most side roads are propane-only, and we confirm fuel type before quoting any equipment.
  • Willis is as flat as anywhere in Washtenaw County, and drainage is slow enough that ditches and field tiles run most of the spring. Crawlspaces near Paint Creek and along the lower stretches of Bunton Road stay wet into June, and that moisture finds its way into ductwork and furnace cabinets. Winter wind crosses the fields unbroken, and summer brings long humid stretches with little shade outside the old farmstead windbreaks.
18 mindrive from our Ypsilanti shop
10 miinside our 20-mile radius
24 hrssame flat rate, any hour
48191ZIP codes we cover in Willis

What Willis homeowners call about

Large repair on old equipment

A compressor or coil on a 15-year-old air conditioner, or a control board and blower on a 20-year-old furnace, often costs half of what a new unit does. We show you both numbers and the likely life left in the old one.

Furnace older than 20 years

Gas furnaces in Michigan basements commonly last 18 to 25 years. Past 20, a failure in the heat exchanger or inducer is a matter of when, and parts for discontinued models get harder to find.

Addition or remodel changed the load

A finished basement, a new sunroom or a second-floor addition changes what the system has to heat and cool. The original equipment is now the wrong size, and the ductwork may not reach.

New Guardian gas furnace installed in a basement with sealed sheet-metal plenum and new flue
A new Guardian furnace in a tight Ypsilanti-area basement, plenum sealed with foil tape and a new flue connection.

Covered on a Willis visit

  • Gas line connection, drip leg, shutoff and pressure test
  • New furnace set on a pad with vibration isolation, sealed plenum connections and proper condensate trap
  • Mechanical permit pulled and inspection scheduled with the county or municipality
  • New thermostat installation and setup, including staging configuration
  • Rebate paperwork for DTE, Consumers Energy and federal tax credits where the equipment qualifies
  • Commissioning report with static pressure, temperature rise and combustion readings

How a hvac installation call works

  1. Free in-home estimate

    Al walks the house, measures, looks at the existing equipment, ductwork, venting, gas line and electrical, and asks how the house actually performs. No pressure, no same-day-only pricing.

  2. Manual J and D sizing

    A real load calculation on your house, not a rule of thumb from the old nameplate. We check that the existing ducts can carry the airflow the new system needs and tell you if they cannot.

  3. Written options, explained

    Two or three equipment configurations in writing, with the efficiency, staging and rebate picture for each, and our honest recommendation of which one fits your house and budget.

Reviews from nearby homeowners

★★★★★

Al was great! I had no A/C on the hottest day of the year and I was able to diagnose it to a failed capacitor. I was calling for the part and no one had stock. I spoke with Al and he was able to help me within an hour — came out, installed and rolling same day. Al is a great guy, highly recommend.

JE W. · Google review, 2026

HVAC Installation questions from Willis

How do you size a system for a 1950s–80s rural ranches and farmhouses with scattered 2000s builds house?

With a Manual J load calculation on the house as it exists now, including any insulation, window or addition work since it was built. Houses in Willis Road east toward Sumpter almost always need less furnace than the original nameplate.

Do you pull the permit in Willis?

Yes. Replacement furnaces, condensers and coils require a mechanical permit from Washtenaw County or the local building department, and we handle the permit and the inspection as part of the install.

Who actually does the installation?

Al does, with help as the job requires. The person who measured your Willis house and wrote the estimate is the person setting the furnace and charging the system.

Can you install in winter?

Yes. Furnaces go in year-round. We install air conditioners in cold weather too, though the final refrigerant charge verification is done when the outdoor temperature allows, and we come back to Willis to finish it at no charge.

How long does a replacement take?

Most furnace and AC replacements in Willis are a single day. Adding air conditioning to a furnace-only house, new venting or duct corrections can add a day, and we tell you that in the estimate.

Serving every part of Willis

New HVAC systems in Willis from Temprasure are sized to the house, permitted with Washtenaw County, installed by the owner and commissioned with static pressure, temperature rise and refrigerant readings you keep for the life of the equipment. There is no sales team and no price that expires at the end of the visit. Book a free estimate online or by phone and we will come out to Willis Road east toward Sumpter on your schedule, walk the house, and put the numbers in writing.

Neighborhoods and areas we run to regularly: Hitchingham Road area, Willis Road east toward Sumpter, Tuttle Hill Road south of Willis, the Augusta-Sumpter township line, Bunton Road corridor, the Willis crossroads at Willis and Rawsonville Roads, and the rest of Willis.

HVAC Installation & Replacement in Willis, quoted before we start

Call or text (313) 701-9471. Willis is a 18-minute run for us and we are open around the clock.

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