Skip to content
ProComfort RegistryPowered byGenovation AI
Get Featured
South San Francisco, California · Heating & furnaces

Heating & furnace contractors in South San Francisco, CA

11 heating & furnace contractors in South San Francisco, out of 24 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.

Pros
11
Avg. score
50.8
Scored
6

Summary

Data last updated

As of October 14, 2026, the ProComfort Registry lists 11 heating & furnace contractors in South San Francisco, California. Most-listed specialties: air conditioning (4), ductwork & IAQ (1). 6 have enough public signals for a Registry Score, averaging 50.8 out of 100; 1 scores 70 or higher. Together they hold 4,161 public reviews on Google, Yelp and Facebook. The highest-scored is Summers Plumbing & Heating, at 78 out of 100. 1 is Featured for 2026. View Summers Plumbing & Heating.

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

Showing 1–11 of 11

Heating & furnace contractors in South San Francisco: at a glance

How many heating & furnace contractors are in South San Francisco, California?
As of October 14, 2026, the ProComfort Registry lists 11 heating & furnace contractors in South San Francisco, California.
Who is the highest-scored heating contractor in South San Francisco, California?
By Registry Score, Summers Plumbing & Heating (South San Francisco, CA) ranks first at 78 out of 100, among 6 scored businesses averaging 50.8. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
Which companies are featured in South San Francisco, California for 2026?
ProComfort Registry features Peninsula Heating By Joseph Byrne. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
How are heating & furnace contractors in South San Francisco, 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