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Andersen Contracting LLC
45300 COUNTRY CLUB WAY, Gualala, CA 95445, USA
Verify this license yourself at the California Contractors State License Board (CSLB).
When the air conditioner quits during a California heat wave, or the furnace starts short-cycling on a cold morning, homeowners and property managers want one thing fast: a qualified technician who can diagnose the problem correctly. Andersen Contracting LLC serves residential and commercial customers across California, and it has been licensed as a contractor in the state since 1975, under contractor license #303427.
Services Offered
Service Area
About Andersen Contracting LLC
The company's work covers the full range of heating, cooling, and indoor air needs. AC Services address cooling systems that run poorly or not at all, while Heating Services and Furnace Services handle the equipment that keeps a building warm through the cooler months. Heat Pumps provide both heating and cooling from one system, and Ductwork Services focus on the channels that move air through a home, where leaks and blockages can quietly waste energy. Thermostat Services, Emergency HVAC calls, and Maintenance and Tune-up visits round out the list, with each job starting from a clear inspection and a written explanation of the repair or replacement involved.
California's climate varies widely, from coastal fog to inland summers that push equipment hard for weeks at a time. Andersen Contracting LLC works with those conditions in mind, so the recommendations it makes reflect the way systems actually perform in local homes and buildings. Customers in every region of the state can request service and discuss their options directly.
Anyone comparing local pros should look at experience, licensing, and how clearly a company explains its work. Andersen Contracting LLC invites homeowners and businesses to review its listing on HVAC Service Fast and reach out with questions before they decide.
State license record
California license #303427
Active- Issued by
- Contractors State License Board (CSLB)
- Status
- Active as of Aug 4, 2026
- First issued
- Mar 1975 (51 years)
- Valid through
- May 31, 2028
- Business type
- Limited Liability
- County on file
- Mendocino
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 Andersen Contracting LLC offer?
What areas does Andersen Contracting LLC serve?
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Local market — Hopland
HVAC pros here
4
Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).
Local context for Hopland
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 Andersen Contracting LLC
Based on the records we hold for this business.
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State license on record
CSLB lists #303427 as active (record dated Aug 4, 2026). Licensed since 1975. 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.