77
StrongCastro Valley, California
HVAC & Plumbing Pros in Castro Valley, CA
5 businesses serve Castro Valley. Compare them by Registry Score — reputation, digital presence and reach — with owner-confirmed records listed first.
- Pros
- 5
- Avg. score
- 60.6
- Featured
- 4
Featured · 2026
Featured in Castro Valley
66
Established65
EstablishedCastro Valley, CA 94546 4.3(103 reviews)
HVACHeatingA/C
64
EstablishedShowing 1–5 of 5
77
StrongCastro Valley, CA 94546 4.5(345 reviews)
PlumbingWater heaters
66
Established65
EstablishedCastro Valley, CA 94546 4.3(103 reviews)
HVACHeatingA/C
64
EstablishedCastro Valley, CA 94546 4.8(100 reviews)
HVACDucts
31
DevelopingCastro Valley, CA 94546 4.0(8 reviews)
HVACPlumbingHeating
Castro Valley at a glance
- How many HVAC and plumbing companies are in Castro Valley, CA?
- The ProComfort Registry lists 5 heating, cooling and plumbing businesses serving Castro Valley: 4 offering HVAC and 2 offering plumbing (some do both).
- What is the average Registry Score in Castro Valley?
- Rated companies in Castro Valley average 60.6 out of 100. 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 Castro Valley for 2026?
- ProComfort Registry features Harris Water Heaters, DMG North, 4 Seasons Heating & Air Conditioning, Advanced Air Solutions in Castro Valley. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are Castro Valley companies ranked?
- By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.