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Derek's Heating, Cooling & ElectricalHVAC contractor in Union, MO

Derek's Heating, Cooling & Electrical is an HVAC contractor at 510 B US-50, Union, MO 63084, ranked #14 of 60 HVAC contractors in Union and rated 4.9 from 88 Google reviews. Open Monday to Friday.

Union, MOUpdated 0 paid placements in any rankingHow we rank

Call (636) 744-4646Website ↗

Key facts

Key facts about Derek's Heating, Cooling & Electrical
Address510 B US-50, Union, MO 63084Get directions
Phone(636) 744-4646
Websitedereksheatingandcooling.com
HoursMonday to Friday: 8 AM – 4:30 PM
Google rating4.9 from 88 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves Union and 5 towns within 25 miles: Washington, Pacific, Sullivan, Eureka and Wildwood.

Based in Union, MOView on map

Opening hours

Opening hours for Derek's Heating, Cooling & Electrical
DayHours
Monday8 AM – 4:30 PM
Tuesday8 AM – 4:30 PM
Wednesday8 AM – 4:30 PM
Thursday8 AM – 4:30 PM
Friday8 AM – 4:30 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

Derek's Heating, Cooling & Electrical compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Derek's Heating, Cooling & Electrical (this business)—574.9 (88)—NoNo
B & S Heating & Cooling#12584.7 (32)———0.5 mi
Eureka Heating and Cooling#13574.8 (104)—YesYes20.3 mi
Arrow Mechanical Heating & Cooling#15574.8 (91)—NoNo1.5 mi

See all 60 ranked HVAC contractors in Union

Reviews

ContractorsRanked reviews

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Google

4.9from 88 Google reviews

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Questions about Derek's Heating, Cooling & Electrical

How is Derek's Heating, Cooling & Electrical ranked in Union?

Derek's Heating, Cooling & Electrical is ranked #14 of 60 HVAC contractors in Union by CR Score, with 57 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 Derek's Heating, Cooling & Electrical’s hours?

Derek's Heating, Cooling & Electrical is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4:30 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Derek's Heating, Cooling & Electrical serve?

Serves Union and 5 towns within 25 miles: Washington, Pacific, Sullivan, Eureka and Wildwood. 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 Derek's Heating, Cooling & Electrical?

Derek's Heating, Cooling & Electrical has a rating of 4.9 from 88 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 Derek's Heating, Cooling & Electrical?

Call Derek's Heating, Cooling & Electrical on (636) 744-4646. The business is at 510 B US-50, Union, MO 63084. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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