Who is the highest-scored heating contractor in National City, California?

By Registry Score, Heating & Cooling Aid (National City, CA) ranks first at 71 out of 100, among 4 scored businesses averaging 55.8. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.

National City, California · Heating & furnaces

Heating & furnace contractors in National City, CA

5 heating & furnace contractors in National City, out of 7 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.

Pros: 5
Avg. score: 55.8
Scored: 4

Summary

Data last updated October 1, 2026

As of October 1, 2026, the ProComfort Registry lists 5 heating & furnace contractors in National City, California. Most-listed specialties: air conditioning (5), commercial (1). 4 have enough public signals for a Registry Score, averaging 55.8 out of 100; 1 scores 70 or higher. Together they hold 80 public reviews on Google, Yelp and Facebook. The highest-scored is Heating & Cooling Aid, at 71 out of 100. View Heating & Cooling Aid.

Counts come straight from the Registry's records. How the Registry Score works

Showing 1–5 of 5

Strong

Heating & Cooling Aid

National City, CA 91950 4.7(31 reviews)

HVACHeatingA/C

(619) 704-6698 Website

Established

ZRO Mechanical

National City, CA 91950 4.4(5 reviews)

HVACHeatingA/CCommercial

(619) 603-8189 Website

Developing

Kool-air Heating And Cooling

National City, CA 91950 4.0(37 reviews)

HVACHeatingA/C

(619) 802-8674 Website

Developing

AC & Heating Contractor

National City, CA 91950 4.4(7 reviews)

HVACHeatingA/C

(398) 026-3980 Website

—

Not yet rated

On Target Heating & Cooling Inc

National City, CA 91950

HVACHeatingA/C

(619) 381-7473

Heating & furnace contractors in National City: at a glance

How many heating & furnace contractors are in National City, California?: As of October 1, 2026, the ProComfort Registry lists 5 heating & furnace contractors in National City, California.
Who is the highest-scored heating contractor in National City, California?: By Registry Score, Heating & Cooling Aid (National City, CA) ranks first at 71 out of 100, among 4 scored businesses averaging 55.8. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
How are heating & furnace contractors in National City, California ranked?: By Registry Score (0-100, from public reviews, digital presence and reach), with records confirmed by their owners listed first. The full method is at https://procomfortregistry.online/methodology.

What this list includes: businesses whose public category or name points to heating: furnaces, boilers, heat pumps or radiant heat. Tags come from each business's public category and name, so a company can appear under several trades. Heating & furnace contractors across the US