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O'Connor CompanyHVAC contractor in Sioux Falls, SD

O'Connor Company is an HVAC contractor at 4909 N Lewis Ave, Sioux Falls, SD 57104, ranked #40 of 54 HVAC contractors in Sioux Falls and rated 5.0 from 8 Google reviews. Open Monday to Friday.

Sioux Falls, SDUpdated 0 paid placements in any rankingHow we rank

Call (605) 336-0333Website ↗

Key facts

Key facts about O'Connor Company
Address4909 N Lewis Ave, Sioux Falls, SD 57104Get directions
Phone(605) 336-0333
Websiteoconnorco.com
HoursMonday to Friday: 8 AM – 5 PM
Google rating5.0 from 8 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Sioux Falls and 2 towns within 25 miles: Brandon and Harrisburg.

Based in Sioux Falls, SDView on map

Opening hours

Opening hours for O'Connor Company
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

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

O'Connor Company compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
O'Connor Company (this business)—535.0 (8)—NoNo
Lambert Heating & Air Conditioning Inc#38544.3 (30)—NoNo2.3 mi
Climate Systems#39535.0 (8)—NoNo4.2 mi
G & R Controls#41534.6 (9)—NoNo0.0 mi

See all 54 ranked HVAC contractors in Sioux Falls

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 8 Google reviews

Hired O'Connor Company? Write a review

Questions about O'Connor Company

How is O'Connor Company ranked in Sioux Falls?

O'Connor Company is ranked #40 of 54 HVAC contractors in Sioux Falls by CR Score, with 53 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 O'Connor Company’s hours?

O'Connor Company is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does O'Connor Company serve?

Serves Sioux Falls and 2 towns within 25 miles: Brandon and Harrisburg. 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 O'Connor Company?

O'Connor Company has a rating of 5.0 from 8 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 O'Connor Company?

Call O'Connor Company on (605) 336-0333. The business is at 4909 N Lewis Ave, Sioux Falls, SD 57104. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

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