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Sierra Building Services
6201 IVY TRAIL, El Dorado, CA 95623, USA
Verify this license yourself at the California Contractors State License Board (CSLB).
When California homeowners start searching for AC Services, the trigger is often a hot afternoon in the Central Valley or a warm night in Los Angeles when the unit stops keeping up. Sierra Building Services is a California HVAC business that serves residential and commercial customers across the state. The company holds California contractor license #630718 and has been licensed since 1991, giving it more than 35 years of experience in the trade.
Services Offered
Service Area
About Sierra Building Services
The company's work covers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. A typical AC visit includes checking refrigerant levels, inspecting electrical connections, cleaning coils, and testing airflow at the vents. Ductwork work may involve sealing leaks, repairing damaged sections, or improving airflow to rooms that run too hot or cold. Furnace and heating calls follow a similar pattern, with burner inspection, safety checks, and thermostat calibration.
Because California's climate ranges from coastal fog to desert heat, equipment here faces very different demands depending on the region. Sierra Building Services works throughout the state, so its technicians are familiar with the seasonal swings that stress systems from the Bay Area to the Inland Empire.
If you are comparing local pros, ask for the contractor license number, request a written estimate, and confirm what is included in a tune-up. Clear answers to those questions make it easier to choose well. Listings on HVAC Service Fast can help you compare options in your area.
State license record
California license #630718
Active- Issued by
- Contractors State License Board (CSLB)
- Status
- Active as of Aug 4, 2026
- First issued
- Oct 1991 (35 years)
- Valid through
- Oct 31, 2027
- Business type
- Sole Owner
- County on file
- El Dorado
What the license covers
- B General Building
- C-20 Warm-Air Heating, Ventilating and Air-Conditioning
From CSLB public license data as of Aug 4, 2026. Licenses change — confirm the current status at the California Contractors State License Board (CSLB).
Frequently Asked Questions
What services does Sierra Building Services offer?
What areas does Sierra Building Services serve?
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What should I check before hiring an HVAC pro?
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Local market — Diamond Springs
HVAC pros here
21
Have a website
38%
Cooling demand
1,312
Heating demand
3,094
Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).
Local context for Diamond Springs
Buying a new AC or heat pump in California
- California is in the DOE Southwest region: new central air conditioners installed since January 1, 2023 must meet at least 14.3 SEER2 and 11.7 EER2 (13.8 SEER2 and 11.2 EER2 for systems 45,000 BTU/h and larger). Heat pumps must meet 14.3 SEER2 and 7.5 HSPF2 nationwide.
- Since 2025, new systems are built for lower-impact refrigerants such as R-454B or R-32. Ask which refrigerant a quoted system uses and for its AHRI certificate number, which confirms the matched system’s rated efficiency.
Before you hire Sierra Building Services
Based on the records we hold for this business.
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State license on record
CSLB lists #630718 as active (record dated Aug 4, 2026). Licensed since 1991. Re-check it yourself before work starts — it is free and takes a minute. Look it up: California Contractors State License Board (CSLB)
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Ask for proof of insurance
We have no insurance details on file. Ask for a certificate of general liability and workers' compensation coverage before anyone works in your home.
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Ask who pulls the permit
Replacing an AC, furnace, heat pump or water heater usually needs a local permit and inspection. A licensed contractor normally pulls it — ask that the permit is included in the written quote.
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Ask for local references
We do not have review data for this business yet. Ask for two or three recent customers near you.
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California homeowner protection
California law caps the down payment on a home improvement contract at 10% of the contract price or $1,000, whichever is less. Never pay more up front.
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Where this information comes from
- Name, address and phone
- State license records · added Aug 4, 2026
- California license
- CSLB public license data · record date Aug 4, 2026
- Profile summary
- Written automatically from the records above
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HVAC Service Fast is an independent HVAC directory and is not affiliated with this business. Listing details are compiled from publicly available information and may be incomplete or outdated. We do not endorse or guarantee any provider — please verify licensing and insurance directly. See our Disclaimer.