Bay Steam & Sauna
Project fit in San Francisco, California
Searching for Bay Steam & Sauna or a sauna repair specialist in San Francisco, California? This profile connects the company name to sauna project capabilities for sauna heater diagnosis and repair inquiries, steam generator diagnosis and repair, sauna and steam control troubleshooting, sauna and steam-room maintenance inquiries. The listed service area includes San Francisco Bay Area. Create a free account to request referral context, ask about fit, and move toward a handoff.
About
Bay Steam & Sauna is a San Francisco Bay Area service business focused on residential and commercial sauna and steam-room diagnostics, repair, maintenance, and replacement parts. Its current company-owned site describes troubleshooting malfunctioning steam generators and controls, servicing sauna heaters, helping customers identify compatible parts, and working with homeowners, facility managers, spas, clubs, and contractors. The site names MrSteam, Thermasol, Steamist, Finlandia, Amerec, Tylö, Helo, Harvia, Finnleo, Aqua Creek, Global Industries, and S.R. Smith, while separately saying it can service most other brands; those are company-published service claims, not independently verified manufacturer authorizations. California's official contractor lookup identifies Petterson Inc. DBA Bay Steam & Sauna at a Daly City business address under license 1128418, current and active through October 31, 2026, with C-4 boiler/hot-water-heating/steam-fitting and C-61/D-35 pool-and-spa-maintenance classifications. Those classifications support defined steam and pool/spa equipment work but do not independently establish general-building, sauna-room construction, broad electrical, or every manufacturer-specific repair scope. Confirm the project address, covered equipment, current license and bond, on-site personnel, warranty, insurance, parts availability, and exact trade boundaries before service.
Research & community context
Praise
The active owned site provides a direct service-request path and specific sauna-heater, steam-generator, control, maintenance, parts, residential, and commercial context. California's live official record independently connects the same phone and business name to Petterson Inc. DBA Bay Steam & Sauna and shows license 1128418 current and active with a current contractor bond.
Criticism & caveats
The licensed business address is in Daly City rather than San Francisco, so this profile represents documented San Francisco Bay Area service coverage rather than a San Francisco headquarters. The license is recent, its C-4 and C-61/D-35 classifications do not independently establish sauna-room construction or broad electrical scope, and CSLB records a workers-compensation exemption based on no employees. No manufacturer directory, attributable recent sauna project, permit, customer outcome, general-liability document, written warranty, or Sauna Marketplace history was found.
Sources
- Bay Steam & Sauna services and contactBay Steam & Sauna · Company-owned source for Bay Area residential and commercial sauna and steam repair, generator and control troubleshooting, parts sales, listed brands, service-request workflow, phone, email, and claimed license number.
- California contractor license 1128418California Contractors State License Board · Official live record checked July 21, 2026: Petterson Inc. DBA Bay Steam & Sauna, current and active through October 31, 2026, with C-4 and C-61/D-35 classifications, a current contractor bond, and a workers-compensation exemption based on no employees.
- C-4 classification scopeCalifornia Contractors State License Board · Official definition of boiler, hot-water-heating, and steam-fitting installation, service, and repair scope; it does not establish general-building or sauna carpentry authority.
- D-35 classification scopeCalifornia Contractors State License Board · Official definition of pool-and-spa maintenance scope, including specified motors, pumps, filters, heaters, piping, switches, breakers, lights, solar systems, acid baths, and liners.
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Disclaimer: Bay Steam & Sauna is an independent business and is not an employee, agent, or subcontractor of SaunaCompanies.com or SaunaMarketplace.com. Any badges shown reflect our review of publicly available information or direct experience and do not constitute a warranty, guarantee, or endorsement. Please verify licenses, insurance, and references independently before hiring.