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Heinanen Engineering, Inc.HVAC contractor in South Lyon, MI

Heinanen Engineering, Inc. is an HVAC contractor at 350 S Lafayette St, South Lyon, MI 48178, ranked #8 of 471 HVAC contractors in South Lyon and rated 4.9 from 328 Google reviews. Open Monday to Wednesday and Saturday and Sunday.

South Lyon, MIUpdated 0 paid placements in any rankingHow we rank

Call (248) 486-6100Website ↗

Key facts

Key facts about Heinanen Engineering, Inc.
Address350 S Lafayette St, South Lyon, MI 48178Get directions
Phone(248) 486-6100
Websiteheinanenengineering.com
HoursMonday to Wednesday: 8 AM – midnight; Saturday and Sunday: 8 AM – midnight
Google rating4.9 from 328 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves South Lyon and 11 towns within 25 miles: Whitmore Lake, Wixom, Brighton, Northville, Novi, Milford, Walled Lake, Plymouth, Ann Arbor, Canton and Farmington.

Based in South Lyon, MIView on map

Opening hours

Opening hours for Heinanen Engineering, Inc.
DayHours
Monday8 AM – midnightevening
Tuesday8 AM – midnightevening
Wednesday8 AM – midnightevening
ThursdayClosed
FridayClosed
Saturday8 AM – midnightevening
Sunday8 AM – midnightevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Heinanen Engineering, Inc. compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Heinanen Engineering, Inc. (this business)—624.9 (328)—YesYes
Crain Heating and Cooling#6624.9 (1,422)—YesYes13.3 mi
Mrs. Michael Plumbers, Electricians, and HVAC Technicians#7624.7 (2,618)—YesYes12.3 mi
Haley Mechanical - Brighton#9614.9 (374)—YesYes7.4 mi

See all 471 ranked HVAC contractors in South Lyon

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 328 Google reviews

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Questions about Heinanen Engineering, Inc.

How is Heinanen Engineering, Inc. ranked in South Lyon?

Heinanen Engineering, Inc. is ranked #8 of 471 HVAC contractors in South Lyon by CR Score, with 62 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Heinanen Engineering, Inc.’s hours?

Heinanen Engineering, Inc. is open Monday to Wednesday and Saturday and Sunday. Its listed hours are Monday to Wednesday, 8 AM – midnight; Saturday and Sunday, 8 AM – midnight. On Saturdays it is open 8 AM to midnight, and on Sundays 8 AM to midnight. Hours come from the business listing; holiday hours may differ.

What areas does Heinanen Engineering, Inc. serve?

Serves South Lyon and 11 towns within 25 miles: Whitmore Lake, Wixom, Brighton, Northville, Novi, Milford, Walled Lake, Plymouth, Ann Arbor, Canton and Farmington. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Heinanen Engineering, Inc.?

Heinanen Engineering, Inc. has a rating of 4.9 from 328 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Heinanen Engineering, Inc.?

Call Heinanen Engineering, Inc. on (248) 486-6100. The business is at 350 S Lafayette St, South Lyon, MI 48178. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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