In the San Francisco Bay Area, we have many microclimates but on average we have 500 to 600 cooling hours and 1,100 to 1,200 heating hours.

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Company Info

Paul Bigham, the owner of Bigham’s One Hour Heating and Air Conditioning® and Mister Sparky North Bay both are headquartered in Santa Rosa, CA, has been in the HVAC or heating and cooling business for 21 years and is dedicated to providing exceptional customer service: 100% customer satisfaction is always guaranteed. Through Paul’s leadership, the company earned 2008 franchise of the year out of 237 franchises across North America and has maintained an A+ Rating with the BBB and seven consecutive years of Highest in Customer Satisfaction with Diamond Certified. As part of the One Hour Heating and Air Conditioning family, our HVAC company offers unparalleled guarantees, quality on-time service, family-friendly heating and cooling technicians and the best air conditioning and heating brands in the business. We are proud to offer the following services to the Santa Rosa area and surrounding cities throughout the Bay Area

We accept:

  • Visa
  • Mastercard
  • American Express

Local Technicians You Can Trust


As your local HVAC experts, we believe in gaining your trust and earning your business. We are confident in what we do, and we want you to feel the same way. That’s why we offer a number of guarantees so that you can feel safe working with our experienced, family-friendly company.

  • On Time: When you schedule a service appointment with us, it is our job to be there on time. As part of the One Hour Heating and Air Conditioning family, we offer the on-time guarantee: “Always On Time…Or You Don’t Pay A Dime!”
  • Property Damage Protection: Our hand-picked courteous service experts will treat your home like their own. Your home is protected from any damage caused by our heating and cooling technicians.
  • 100% Guarantee: All of our repair work comes with a full two year warranty, and all our repairs are backed by a satisfaction guarantee. If you are not 100% satisfied with the service we perform, you don’t pay.
  • Straightforward Pricing: There are never any surprises with One Hour Heating & Air Conditioning. We give you options for solving your heating and air conditioning problems, tell you the total cost of your repairs upfront, and wait for your approval before doing any work.

When you need HVAC repair, maintenance or installation, choose your trusted local heating and cooling specialists. Contact Bigham’s One Hour Heating and Air Conditioning today


We provide a wide range of financing options for our customers i.e. PACE Programs, CalFirst, YGreen Mosaic, GreenSky and others.

Comfort Club

Home Protection Club. (Power Club) 

  • Front of the Line Service – HPC members always have priority over non-members.
  • No Service Fee – Never pay a service fee during regular business hours.
  • 5% to 10% Discount on future repairs and up to 5% discount on equipment and replacement.
  • Up to 248 Point Safety Inspection and Maintenance for your Plumbing, Electrical, Heating and Cooling Systems.

Area Served

Serving the greater Santa Rosa area: Marin county, Sonoma County, Napa Valley, Solano County.

  Business Address

1400 Petaluma Hill Rd.
Santa Rosa, CA 95404

5121 Port Chicago
Concord, Ca. 94520

License Number


Your Local One Hour Heating & Air Conditioning® Team