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HVAC Services in Signal Hill, CA

19 HVAC contractors found

Need emergency service? 2 HVAC providers in Signal Hill offer 24/7 availability→
HVAC ServiceAC RepairHVAC RepairAC InstallationHVAC MaintenanceCommercial HVACEmergency HVACAC Replacement

Primo Plumbing & Heating

4.9(362)
Highly Rated

“346 reviews averaging 4.9 stars with five-star ratings spanning garbage disposal installs, water heater…”

2831 Junipero Ave STE 603, Signal Hill, CA 90755
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Advance Mechanical Contractors

4.9(172)
Highly Rated

“All five-star reviewers name specific technicians, Ray, Frank, or Oscar, and praise their diagnostic skill,…”

1301 E Burnett St, Signal Hill, CA 90755
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Marathon Plumbing, Heating and AC Repair

4.5(152)

“Six reviewers specifically name their technicians (Mark, Mario, Joe, Whitney) and commend diagnostic…”

2525 Cerritos Ave, Signal Hill, CA 90755
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Ram Insulation Inc.

5.0(73)

“All 73 reviews award 5 stars, with customers specifically praising Miguel for his professionalism and…”

2501 E 28th St Ste 116, Signal Hill, CA 90755
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Allied Refrigeration Inc

4.7(62)

“Six of eight reviewers award 5-star ratings, with specific praise for counter staff knowledge and same-day…”

2300 E 28th St, Signal Hill, CA 90755
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Velo Air Inc.

4.9(44)

“All six readable reviews award 5 stars, with customers specifically naming team members Melissa, Michael, and…”

2682 Dawson Ave, Signal Hill, CA 90755
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Advanced Roofing Systems Inc

4.7(45)

“Four reviewers specifically mention Carlos by name and praise his communication and responsiveness. All…”

2801 Junipero Ave #200, Signal Hill, CA 90755
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Yes R&M

4.9(10)

“All 10 reviewers awarded 5-star ratings, with 6 specifically mentioning technicians by name including Doug,…”

2700 Rose Ave, Signal Hill, CA 90755
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Gorsuch Plumbing, Heating, & Air Conditioning

3.1(39)

“Three detailed reviews cite specific concerns: two negative experiences involve incomplete or improper…”

3391 E 19th St, Signal Hill, CA 90755

A C Pumping Unit Repair

5.0(1)

“The single available review awarded a 5-star rating, indicating client satisfaction with the repair services…”

2625 Dawson Ave, Signal Hill, CA 90755
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Thermal Wrap Attic Insulation

5.0(1)

“The single five-star review describes the contractor as punctual, professional, and thorough, with office…”

2799 Temple Ave, Signal Hill, CA 90755
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Signal Mechanical Inc

5.0(1)
2675 Junipero Ave #500, Signal Hill, CA 90755
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Safe Guardian Cooling

0.0

“No customer reviews are available for this contractor, making independent validation of service quality…”

1813 Redondo Ave, Signal Hill, CA 90755
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Air Treatment Corporation

0.0
1908 N Freeman Ave, Signal Hill, CA 90755

Signal Hill Heating and Air Conditioning

0.0
2061 Dawson Ave, Signal Hill, CA 90755
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AAA CALVERT Electrical, Heating and Air Conditioning

4.9

“All five detailed reviews award 5 stars, with two technicians named across multiple accounts. Four reviewers…”

1348 E 29th St, Signal Hill, CA 90755
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Trusted Quality Air Experts

0.0
24/7
3381 Olive Ave, Signal Hill, CA 90755
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Team Trusted Heating & Cooling

0.0
2599 E 28th St #122, Signal Hill, CA 90755
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Trusted Guardian Cooling Service

0.0
24/7
999 E Spring St, Signal Hill, CA 90755
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HVAC Service Costs in Signal Hill, CA

Pricing ranges across all HVAC services offered in Signal Hill.

ServiceTypical RangePrice Points
AC Repair$71–$2,6607 items →
AC Installation$138–$18,4008 items →
AC Replacement$1,932–$14,7205 items →
HVAC Maintenance$15–$7847 items →
HVAC Repair$74–$3,4307 items →
HVAC Service$67–$13,3956 items →
Emergency HVAC$143–$3,3256 items →
Commercial HVAC$2–$76,0007 items →

Prices reflect Pacific coast metro averages based on HomeAdvisor and Angi published cost data. Last updated: April 2026.

HVAC in Signal Hill, CA: What Homeowners Should Know

Signal Hill sits in the Los Angeles metro area where Mediterranean weather shapes distinct heating and cooling patterns throughout the year. Summer temperatures climb into the mid-eighties, while Santa Ana winds occasionally push inland valley readings past one hundred degrees, creating swing conditions that keep local systems working harder than coastal neighbors might expect. With eight HVAC companies serving this smaller community and an average rating of 4.8 drawn from nearly twelve hundred reviews, residents have access to well-rated professionals who understand how inland temperature swings affect equipment performance and longevity.

California law requires HVAC contractors to hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning license from the Contractors State License Board, which means at least four years of verifiable HVAC experience within the past decade. This regulatory framework protects homeowners while establishing a professional baseline across the industry. For major projects like complete system replacements, costs can reach sixty thousand dollars or higher depending on equipment selection and installation complexity, while basic service calls represent the lower end of the pricing spectrum.

Homeowners who leave feedback frequently mention response time and clear communication as distinguishing qualities among the best HVAC providers in Signal Hill. Several reviewers note technicians who arrive within promised windows and take the extra step of explaining diagnosis findings before recommending repairs. These patterns appear consistently across comments, suggesting that reliability and transparency drive customer satisfaction more than price alone in this particular market.

Frequently Asked Questions

Among 19 HVAC contractors serving Signal Hill, the top-rated providers average 3.2★ across 962 reviews. The highest-ranked companies on this page are sorted by a combination of rating and review volume, so established contractors with consistent quality appear first. Check reviews, licensing, and response time to pick the right fit for your situation.

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