Do I need a permit for HVAC work in
Burlingame, California?

Burlingame HVAC permits — the key details

California Title 24 Energy Code governs all HVAC work statewide, and Burlingame enforces it without local carve-outs. Any HVAC replacement (furnace, air conditioner, heat pump, mini-split) requires a Title 24 Compliance Certificate proving the new unit meets minimum SEER2 (Seasonal Energy Efficiency Ratio 2) and HSPF2 (Heating Seasonal Performance Factor 2) ratings. For a typical Burlingame home (coastal 3B climate), a new air conditioner must achieve SEER2 ≥16, and a heat pump ≥8.5 HSPF2. The Building Department will not issue a permit without this documentation; your contractor must provide it before work begins. If you are an owner-builder (B&P Code § 7044 allows this for single-family residential property you own and occupy), you must pull the permit yourself, but California law mandates that all HVAC installation work be performed by a licensed contractor holding a Class A, B, or C-20 license. This is non-negotiable — you cannot install the system yourself even if you pull the permit. The Building Department verifies contractor licensing at permit issuance. Permit fees in Burlingame run 1.5-2% of the project valuation; a $15,000 HVAC replacement typically costs $225–$300 in permit fees plus $150–$250 for the final inspection.

Ductwork modifications and new runs trigger additional scrutiny in Burlingame. If your replacement system requires new ductwork, a layout, or relocation of the air handler, the permit requires detailed ductwork plans showing diameter, insulation R-value (minimum R-6 for most ducts, R-8 for ducts in unconditioned spaces per Title 24 § 150.0(m)), and support methods. Burlingame inspectors will verify that ductwork is sealed with mastic (not duct tape, which Title 24 prohibits) and test the entire system for duct leakage at final inspection using either a blower-door or duct-blaster test. If the system serves multiple rooms or involves attic or crawl-space runs, a Title 24 Duct Leakage Compliance Report is required; many contractors charge $300–$500 extra for this testing. The city's coastal location means salt-air corrosion is a concern — the Building Department may require galvanized or stainless-steel ductwork supports and anti-corrosion coatings in certain applications, adding 10-15% to material costs.

Mini-split (ductless) systems are increasingly popular in Burlingame and follow the same Title 24 requirements. The advantage is reduced permitting complexity — a single indoor/outdoor unit pair requires only the unit's SEER2/HSPF2 certificate and a simple one-page permit application, no ductwork plans. However, the refrigerant lines must still comply with Title 24 § 150.0(j): insulation minimum R-15 for lines in unconditioned spaces, proper slope for condensate drainage (minimum 0.5 inch per 10 feet), and isolation from structural elements to prevent vibration noise complaints. Burlingame does not have a local noise ordinance specific to HVAC, but the California Building Code (IBC § 1206.2) limits exterior equipment noise to 50 dB at the property line during daytime hours. Outdoor condenser units must be placed at least 5 feet from bedroom windows and 10 feet from neighboring property lines if possible. A mini-split install typically takes 3-5 days; permits are often approved over-the-counter in 1-2 days if paperwork is complete.

Furnace-only replacements (in homes without air conditioning) still require a permit and Title 24 compliance in Burlingame, even though it seems like a like-for-like swap. The new furnace must be AFUE (Annual Fuel Utilization Efficiency) ≥95% if gas-fired, or ≥8.5 HSPF2 if electric heat pump (Title 24 Table 150.0-A). Venting, combustion air, and gas-line safety inspections are mandatory. A furnace replacement typically takes 1-2 days; permit approval is usually 2-3 business days if you submit the Title 24 certificate with your application. Hydronic (hot-water) heating systems require an additional boiler certification and backflow-prevention device if the system connects to a water-supplied radiant floor; this adds complexity and cost but is rare in Burlingame's mix of single-family homes.

The final inspection is where many projects stumble. Burlingame Building Department will inspect the installed equipment (verify nameplate ratings match the permit), refrigerant charge (weighed and logged on a work sheet), thermostat settings, combustion-air pathways (for furnaces), condensate-drain slope and termination, ductwork sealing and insulation, outdoor unit placement and clearances, and electrical connections (disconnect switch, proper gauge wiring, grounding). If the system is zoned (multi-stage thermostats or dampers), the inspector will test zone operation. Expect the inspection to last 30-60 minutes. If work is done by a licensed contractor, they typically request the inspection and schedule it; if you pull a permit as an owner-builder, you must request it in writing or via the online portal and be present. Inspection fees are included in the permit fee. Once the system passes, the inspector issues a Final Certificate of Occupancy for that component, and you are legally clear to operate the system. This certificate is your proof of compliance for insurance and future sales.

Three Burlingame hvac scenarios

Title 24 compliance: Why Burlingame inspectors reject incomplete paperwork

Title 24 Energy Code is not optional in Burlingame; it is state law, and the Building Department must enforce it or face liability. Every HVAC permit application in Burlingame requires a Title 24 Compliance Certificate — a simple one-page form showing the new equipment's SEER2 (air conditioning/heat pump) or AFUE (furnace) rating and confirming it meets the minimum threshold for your climate zone. Burlingame is primarily in climate zone 3B (coastal) and 3C (inland valley), where minimum SEER2 is 16 for air conditioning and heat pumps. Some hillside areas near the foothills are in zone 5B or 6B, where minimums are slightly lower (SEER2 14-15) but still require documentation. If a contractor or homeowner submits a permit application without this certificate, the Building Department will reject it and ask for resubmission. This rejection is not a denial; it is an incompleteness notice that adds 5-7 business days to the approval timeline. Many homeowners are surprised by this because they assume a furnace is a furnace, or an AC unit is an AC unit. The reality is that California changed its energy code in 2023 to SEER2 (from SEER), and many older equipment specifications still use the old SEER rating. A contractor who spec'd equipment based on an old quote may have provided a unit with SEER2 13.9, just under the 16 threshold, which Burlingame cannot approve. The solution is to either upgrade the unit (usually $500–$1,500 more) or request a local variance (rare, and the Building Department will almost certainly deny it for Title 24). The lesson: confirm Title 24 compliance with your contractor BEFORE pulling a permit, not after.

Coastal corrosion and Bay-area moisture: Why Burlingame flags refrigerant-line routing

Burlingame's coastal location (latitude 37.6°N, elevation 0-200 feet on the coast side of El Camino, higher in the foothills) exposes HVAC equipment to salt-air corrosion and high humidity. Unlike inland jurisdictions, Burlingame Building inspectors have seen premature failure of unprotected refrigerant lines, copper corrosion, and condensate-pan rust in systems less than 10 years old. The state-level Title 24 code does not account for this coastal specificity; Burlingame's local practice (enforced by the Building Department's inspection checklist) requires additional scrutiny. For any mini-split or air-conditioning system with outdoor condenser units, the inspector will verify: (1) Refrigerant lines are wrapped in foam insulation rated for coastal UV exposure (polyethylene, not cheap foam that degrades in 5-7 years); (2) Lines are sloped toward the condenser unit for condensate drainage (minimum 0.5 inch per 10 feet of horizontal run) so water does not pond and cause corrosion; (3) The outdoor unit is not placed directly facing the prevailing wind direction (typically west/northwest in Burlingame), which drives salt spray. If lines are routed through the attic or a vented crawl space, the inspector will also check for proper support (no sharp bends) and clearance from insulation (rigid foam insulation can degrade in contact with refrigerant). For homeowners, the practical implication is that a 'cheap' mini-split install that skips quality insulation or slopes condensate lines uphill will fail sooner in Burlingame than it would inland. When comparing contractor bids, ask each contractor about their insulation brand and warranty; Armacell or similar marine-grade foam adds $200–$500 to a multi-room mini-split but extends system life by 5-10 years in coastal conditions. If you are an owner-builder pulling the permit yourself, make sure your contractor's statement of work explicitly specifies marine-grade insulation and proper slope; if the inspector rejects the final inspection for poor insulation, the contractor must re-do the work at their cost, but if it was not in the contract, you may be liable. The Building Department does not make exceptions for coastal conditions; it simply enforces the standard and expects contractors to know the local reality.

Common questions