New Home HVAC Inspection in South Lyon, Michigan
South Lyon is about 30 minutes from our shop in Ypsilanti. A general home inspector turns the furnace on and notes that it ran. We open it, test it, read the heat exchanger and the refrigerant charge, and tell you what you are actually buying before the contingency expires.
If you are under contract on a house in South Lyon and the inspection report came back with "recommend evaluation by a licensed HVAC contractor," that line is the reason this page exists. Temprasure is that contractor for buyers across Oakland County. Call or text with the address and the deadline, and we will get out to Trotters Pointe or anywhere else in 48178, test everything that can be tested, and send you a plain-language report with photos. For a 1880s–1940s depot-town houses and 1990s–2010s subdivision colonials house with equipment of unknown age, it is the most useful money you will spend during the contingency period.
South Lyon houses and what that means for pre-purchase inspection
South Lyon's housing covers the full range from Victorian to brand new. The downtown blocks off Lafayette and the streets behind the depot are 1880s to 1920s frame two-stories and bungalows on Michigan basements, with retrofitted ductwork and a furnace in whatever corner of the basement had headroom. The 1950s and 60s ranches along Pontiac Trail and Nine Mile are on block basements or crawlspaces with single-return systems. Colonial Acres is 1970s and 80s ranch-style condos and small houses with compact furnaces and water heaters in closets, serving an older population that needs reliable heat. The big block of housing is the 1995 to 2015 subdivisions, such as Trotters Pointe, Hidden Creek and Eagle Heights, colonials on poured basements with 80 percent furnaces and R-410A condensers from the first years of that refrigerant, now coming up on replacement. The newest township builds have two systems and zoning. Water heaters in the subdivisions are 50-gallon or power-vented gas units, and 200-amp service is standard there, unlike the downtown blocks.
Competitive bidding in South Lyon changes how we schedule. Houses near the Huron Valley Trail draw multiple offers, inspection periods are compressed to days, and buyers are tempted to skip anything that slows the deal. A focused HVAC inspection fits inside that window: we coordinate with your agent, often inspect during a second showing, and have the report to you within a day. For a 1880s–1940s depot-town houses and 1990s–2010s subdivision colonials house in Oakland County where the furnace and air conditioner are the biggest replacement cost a new owner is likely to face, knowing their real condition is what lets you bid with confidence or build a credit into the offer. We have done this for buyers who were waiving the general inspection entirely and still wanted the equipment looked at.
A lot of the homes we see in South Lyon are the 1880s–1940s depot-town houses and 1990s–2010s subdivision colonials that changed hands recently, and the new owners near Ten Mile Road neighborhoods, Eagle Heights and McHattie Park and the Witch's Hat Depot usually have the same question: what did I actually buy? Our inspections answer that with a combustion test, a heat exchanger check, refrigerant readings, duct static and a written report. Our service agreement keeps answering it twice a year afterward. The shop is 20 miles away, and maintenance customers in South Lyon get priority scheduling when the weather turns.
Local details we plan around in South Lyon
- Some Lyon Township addresses north and east of the city are on Consumers Energy gas rather than DTE, which matters for rebate paperwork and service accounts.
- Downtown houses from the 1880s to 1920s often have 60-amp or 100-amp panels and limited side-yard clearance, both of which shape how central air gets added.
- City water is municipal and moderately hard, and township homes on wells see enough hardness to affect water heater life.
- South Lyon sits on rolling ground at the edge of the lake country, with the Huron River's tributaries and Lake Angela adding humidity to the low spots and the open farmland toward Salem Township letting winter wind through. The city is far enough north and west to see a bit more snow than Ypsilanti, and clear-night lows run colder than the Wayne County suburbs. The old downtown has heavy tree cover; the subdivisions mostly do not, and west-facing second floors there run hot in July.
What South Lyon homeowners call about
Inspection report says "recommend HVAC evaluation"
That line appears on most home inspection reports and means the inspector did not open the equipment. It is the cue to have a contractor actually do it.
Seller has no service records
No tune-up history means nobody has measured anything in years. The equipment may be fine; you just do not know, and neither do they.
Furnace or AC is more than 12 years old
Past that point the heat exchanger, compressor and coil are in the window where a failure is plausible, and the condition is worth knowing before you set your offer or your credit request.

Covered on a South Lyon visit
- Furnace age, model identification and heat exchanger inspection
- Combustion analysis and carbon monoxide reading at the registers
- Air conditioner age, refrigerant type and charge verification by superheat and subcooling
- Chimney and vent connector evaluation, including orphaned water heater flues
- Flame sensor, ignitor, inducer, pressure switch and limit operation
- Ductwork walk-through for disconnections, panned returns, insulation and return sizing
How a pre-purchase inspection call works
Book inside the contingency window
Call or text with the address and the deadline. We coordinate access with your agent or the listing agent and schedule within days, often sooner.
Written report to you within a day
Plain-language findings for each system, safety items flagged separately, likely upcoming costs described, and what we would do first. Photos of what we found.
Call to walk through it
We go through the report with you by phone so you can decide what to ask the seller for. If you buy the house, the report becomes its service history with us.
Reviews from nearby homeowners
★★★★★Temprasure is one of the best-managed companies I've ever come into contact with. Not only did Al do a great job but he did so in a timely manner. He worked as if it was his home in need. I would recommend him to anyone who has heating and cooling needs.
Pre-Purchase Inspection questions from South Lyon
What do you check that the home inspector did not?
The heat exchanger, combustion and carbon monoxide readings, refrigerant charge by superheat and subcooling, capacitor and contactor condition, water heater venting and draft, and the ductwork in the basement and attic of South Lyon homes.
How fast can you inspect a house in South Lyon?
Usually within a few days, faster when the contingency deadline requires it. South Lyon is about 30 minutes from our shop and we coordinate access with your agent directly.
Will you sell me a new system based on the inspection?
No. The report describes condition and likely needs. If the equipment in the South Lyon house is old but sound, it says so. Replacement estimates are free if you buy the house and want one.
Do you check permit history in Oakland County?
Where the township or city has records online, yes. An unpermitted furnace or AC replacement in 48178 is worth knowing about before closing.
Who receives the report?
You and your agent if you choose. The seller does not see it unless you share it. It is written for a South Lyon buyer, not a technician, with safety items flagged first.
Serving every part of South Lyon
A South Lyon house in 48178 with an unknown furnace, an air conditioner that may be an R-22 unit with a slow leak, and a water heater of uncertain age is a gamble you do not have to take. Reach Al directly, any hour, and get the equipment opened, tested with a combustion analyzer and gauges, documented with photos, and explained to you in plain language by phone. It fits inside even a short contingency window.
Neighborhoods and areas we run to regularly: Downtown South Lyon on Lafayette Street, Colonial Acres, the Pontiac Trail corridor, the Nine Mile Road subdivisions, Ten Mile Road neighborhoods, Wellington Village, and the rest of South Lyon.
More in South Lyon
Pre-Purchase Inspection nearby
New Home HVAC Inspection in South Lyon, quoted before we start
Call or text (313) 701-9471. South Lyon is a 30-minute run for us and we are open around the clock.