AC Installation in the San Francisco Bay Area
Need a new air conditioner installed now? We design and install efficient central AC and ductless systems across the San Francisco Bay Area, including San Francisco, Oakland, and San Mateo. Since 1980, our certified technicians have delivered upfront pricing and same-day service, backed by a 100% satisfaction guarantee and a 4.9 rating from 1,905 reviews. Beat the early summer heat with a right-sized, code-compliant install. Call or schedule a free estimate today.
Why Choose Us
What Our Customers Say
"Great experience with Magic Plumbing to install AC."
"Excellent service and very responsive staff!"
"He was very professional, knowledgeable, efficient in his work,"
Answers to Common Questions
View All FAQsWhat is the step-by-step AC installation process homeowners should know?
An AC installation follows a clear sequence from an in-home assessment to final startup and homeowner orientation. Most jobs begin with a load calculation to size the system correctly so it cools evenly without wasted energy. We perform these steps every week in Bay Area homes, bringing technician focus to older ductwork and tight outdoor spaces. A current offer provides $100 off AC system installation; ask for details.
Typical pro workflow:
- In-home assessment and sizing.
- Options review and written proposal.
- Duct inspection and needed fixes.
- Place equipment, pad, and supports.
- Run line set, drain, and wiring.
- Evacuate, charge, and leak-test.
- Start up, set airflow and controls.
- Walkthrough, documentation, and maintenance plan.
Scheduling a professional assessment is the best first step. <br/> Updated: 2026-05-04 <br/> Need help in San Mateo, CA? Call (628) 222-4283 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25OSlNtZHhPVTl2UWtOS05tbGhla3hmV2xKUFFsRRAB!2m1!1s0x0:0xee89717dfae6beb6!3m1!1s2@1:CAIQACodChtycF9oOnNJSmdxOU9vQkNKNmlhekxfWlJPQlE%7C0cYw8vqNbV2%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURwblB5cUpREAE!2m1!1s0x0:0xee89717dfae6beb6!3m1!1s2@1:CIHM0ogKEICAgIDpnPyqJQ%7CCgwI0_v5pgYQ4JCAyAI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQyMkpDLVFREAE!2m1!1s0x0:0xee89717dfae6beb6!3m1!1s2@1:CIHM0ogKEICAgID22JC-QQ%7CCgwIiYzQkwYQyOzzvwM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM3Z3RMTWl3RRAB!2m1!1s0x0:0xee89717dfae6beb6!3m1!1s2@1:CIHM0ogKEICAgIC7gtLMiwE%7CCgwI8aXvtQYQoIyrzwI%7C?hl=en-US[4] https://www.magicplumbing.com/drain-cleaning/[5] https://www.magicplumbing.com/#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjE1NCIsInRvZ2dsZSI6ZmFsc2V9[6] https://www.magicplumbing.com/kitchen-plumbing/[7] https://www.magicplumbing.com/heating/repair/[8] https://www.magicplumbing.com/air-duct-cleaning-repair/[9] https://www.magicplumbing.com/coupons/[10] https://www.magicplumbing.com/plumber-oakland-ca/[11] https://www.magicplumbing.com/emergency-plumbing/How much does it cost to install central air with ductwork?
The cost to install central air with new or upgraded ductwork is confirmed after an in‑home evaluation because equipment size, duct design, and home layout drive the price. Most budgets are set by the home’s square footage and how much ductwork must be added, resized, or sealed. If existing ducts are in good shape, reusing them can lower costs; if they’re leaky or undersized, replacement raises labor and materials. We install complete systems across the Peninsula and plan for attic access and older framing common in local homes. A straight, well‑sealed trunk line often saves more noise and energy than upsizing the outdoor unit. A current site offer provides $100 off AC system installation.
Expect estimates to call out:
- Electrical circuit/panel needs and safe condensate drainage
- Access factors that change labor hours (attic height, crawlspace)
- Return air sizing and number of supply registers for room balance
- Thermostat options and filtration/IAQ upgrades
Schedule a load calculation and duct inspection to get a firm, written quote. <br/> Updated: 2026-04-13 <br/> Need help in Atherton, CA? Call (628) 222-4283 or book online. “Great experience with Magic Plumbing to install AC… efficient… workers were professional and friendly.” — Lauren D.
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You should hire a professional for central AC installation; DIY installs often lead to sizing mistakes, airflow issues, and code-related problems that reduce comfort and efficiency. The most common trouble we fix after DIY attempts is incorrect system sizing and mismatched duct airflow that causes hot and cold spots.
A pro handles load calculations, duct design, electrical work, and refrigerant charging as one system, which is why the result runs quieter and lasts longer. We routinely handle installs in the East Bay, including homes around Emeryville, where older ducts often need careful evaluation. Technician insight: most comfort complaints come from airflow setup, not the outdoor unit itself.
Consider a pro if any of these apply:
- New or upgraded electrical circuits are needed
- Refrigerant lines must be sized, brazed, and charged
- Ducts require redesign, sealing, or balancing
Current offer: $100 OFF AC system installation (expires 2026-05-06). Final pricing is confirmed after an on-site assessment.
Schedule a professional evaluation before purchasing equipment to confirm capacity, duct condition, and placement. <br/> Updated: 2026-05-25 <br/> Need help in Emeryville, CA? Call (628) 222-4283 or book online. "Great experience with Magic Plumbing to install AC. They scheduled quickly, were efficient, less expensive than other bids and the workers were professional and friendly." — Lauren D.
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Where We Work
What areas do you serve for ac installation?
We serve the San Francisco Bay Area, including San Francisco, Oakland, and San Mateo. See the full city list below for complete coverage.