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Gallagher MechanicalHVAC contractor in Pacific, MO

Gallagher Mechanical is an HVAC contractor at 400 E Union St, Pacific, MO 63069, ranked #41 of 303 HVAC contractors in Pacific and rated 3.9 from 33 Google reviews. Open 24 hours a day, 7 days a week.

Pacific, MOUpdated 0 paid placements in any rankingHow we rank

Call (636) 257-4328Website ↗

Key facts

Key facts about Gallagher Mechanical
Address400 E Union St, Pacific, MO 63069Get directions
Phone(636) 257-4328
Websitegallaghermechanicalmo.net
HoursOpen 24 hours, 7 days a week
Google rating3.9 from 33 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Electricaladditional Google category

Service area

Serves Pacific and 11 towns within 25 miles: Eureka, Wildwood, Ellisville, Ballwin, Murphy, Valley Park, Manchester, Union, Chesterfield, Washington and Weldon Spring.

Based in Pacific, MOView on map

Opening hours

Opening hours for Gallagher Mechanical
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.

Compare nearby HVAC contractors

Gallagher Mechanical compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Gallagher Mechanical (this business)—583.9 (33)—YesYes
Design Aire Heating and Cooling#39585.0 (775)—YesYes22.6 mi
Meyer Heating and Air#40584.9 (1,051)—YesYes21.7 mi
Raydel Heating and Cooling#42585.0 (101)—YesYes18.7 mi

See all 303 ranked HVAC contractors in Pacific

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

3.9from 33 Google reviews

Hired Gallagher Mechanical? Write a review

Questions about Gallagher Mechanical

How is Gallagher Mechanical ranked in Pacific?

Gallagher Mechanical is ranked #41 of 303 HVAC contractors in Pacific by CR Score, with 58 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 Gallagher Mechanical’s hours?

Gallagher Mechanical 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 Gallagher Mechanical serve?

Serves Pacific and 11 towns within 25 miles: Eureka, Wildwood, Ellisville, Ballwin, Murphy, Valley Park, Manchester, Union, Chesterfield, Washington and Weldon Spring. 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 Gallagher Mechanical?

Gallagher Mechanical has a rating of 3.9 from 33 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 Gallagher Mechanical?

Call Gallagher Mechanical on (636) 257-4328. The business is at 400 E Union St, Pacific, MO 63069. 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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