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KNOW LtdHVAC contractor in Columbus, OH

KNOW Ltd is an HVAC contractor in Columbus, OH, rated 4.5 from 48 Google reviews. Open 24 hours a day, 7 days a week.

Columbus, OH0 paid placements in any rankingHow we rank

Call (614) 678-6344Website ↗

Key facts

Key facts about KNOW Ltd
Phone(614) 678-6344
Websiteknowheating.com
HoursOpen 24 hours, 7 days a week
Google rating4.5 from 48 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Columbus and 11 towns within 25 miles: Grandview Heights, Upper Arlington, Bexley, Lincoln Village, Whitehall, Grove City, Gahanna, Worthington, Blacklick Estates, Hilliard and Groveport.

Based in Columbus, OHView on map

Opening hours

Opening hours for KNOW Ltd
DayHours
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
  • Open 24/7
  • Open evenings — no
  • Open Saturdays
  • Open Sundays
  • Emergency service

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.

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.5from 48 Google reviews

Hired KNOW Ltd? Write a review

Questions about KNOW Ltd

What are KNOW Ltd’s hours?

KNOW Ltd is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does KNOW Ltd serve?

Serves Columbus and 11 towns within 25 miles: Grandview Heights, Upper Arlington, Bexley, Lincoln Village, Whitehall, Grove City, Gahanna, Worthington, Blacklick Estates, Hilliard and Groveport. 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 KNOW Ltd?

KNOW Ltd has a rating of 4.5 from 48 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 KNOW Ltd?

Call KNOW Ltd on (614) 678-6344. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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