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Northstar Plumbing, Heating and Air ConditioningHVAC contractor in Ontario, CA

Northstar Plumbing, Heating and Air Conditioning is an HVAC contractor at 1351 S Grove Ave #110, Ontario, CA 91761, ranked #26 of 985 HVAC contractors in Ontario and rated 4.7 from 312 Google reviews. Open 7 days a week.

Ontario, CAUpdated 0 paid placements in any rankingHow we rank

Call (909) 593-3353Website ↗

Key facts

Key facts about Northstar Plumbing, Heating and Air Conditioning
Address1351 S Grove Ave #110, Ontario, CA 91761Get directions
Phone(909) 593-3353
Websitenorthstarcares.com
HoursMonday to Saturday: 7 AM – 7 PM; Sunday: 7 AM – 5 PM
Google rating4.7 from 312 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Plumbingbusiness name
  • Electricaladditional Google category

Service area

Serves Ontario and 11 towns within 25 miles: Upland, Montclair, Chino, Rancho Cucamonga, Claremont, Eastvale, Los Serranos, Pomona, Jurupa Valley, Chino Hills and Glen Avon.

Based in Ontario, CAView on map

Opening hours

Opening hours for Northstar Plumbing, Heating and Air Conditioning
DayHours
Monday7 AM – 7 PMevening
Tuesday7 AM – 7 PMevening
Wednesday7 AM – 7 PMevening
Thursday7 AM – 7 PMevening
Friday7 AM – 7 PMevening
Saturday7 AM – 7 PMevening
Sunday7 AM – 5 PM
  • 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

Northstar Plumbing, Heating and Air Conditioning compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Northstar Plumbing, Heating and Air Conditioning (this business)—614.7 (312)—YesYes
Air Concepts Air Conditioning and Heating#24614.9 (995)—YesYes17.0 mi
Orange Coast Plumbing#25614.9 (764)—YesYes15.7 mi
Western Air Mechanical#27614.9 (251)—YesYes11.1 mi

See all 985 ranked HVAC contractors in Ontario

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.7from 312 Google reviews

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Questions about Northstar Plumbing, Heating and Air Conditioning

How is Northstar Plumbing, Heating and Air Conditioning ranked in Ontario?

Northstar Plumbing, Heating and Air Conditioning is ranked #26 of 985 HVAC contractors in Ontario by CR Score, with 61 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 Northstar Plumbing, Heating and Air Conditioning’s hours?

Northstar Plumbing, Heating and Air Conditioning is open 7 days a week. Its listed hours are Monday to Saturday, 7 AM – 7 PM; Sunday, 7 AM – 5 PM. On Saturdays it is open 7 AM to 7 PM, and on Sundays 7 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

What areas does Northstar Plumbing, Heating and Air Conditioning serve?

Serves Ontario and 11 towns within 25 miles: Upland, Montclair, Chino, Rancho Cucamonga, Claremont, Eastvale, Los Serranos, Pomona, Jurupa Valley, Chino Hills and Glen Avon. 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 Northstar Plumbing, Heating and Air Conditioning?

Northstar Plumbing, Heating and Air Conditioning has a rating of 4.7 from 312 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 Northstar Plumbing, Heating and Air Conditioning?

Call Northstar Plumbing, Heating and Air Conditioning on (909) 593-3353. The business is at 1351 S Grove Ave #110, Ontario, CA 91761. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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