Most HVAC systems in California now require permit compliance, airflow testing, and duct verification. Many homeowners are shocked when cheap installations fail inspection or perform poorly.
Point Loma helps homeowners understand the full picture — then shows up as the contractor they already trust.
Replacing an HVAC system used to be straightforward: pick a unit, have it installed, done. California changed that. Today, every HVAC replacement is evaluated as a complete system — equipment, ductwork, airflow, and energy performance — and must pass mandatory third-party testing before the permit closes.
This is good news for homeowners who want a system that actually works. It is frustrating news for contractors who built their business on fast, cheap swaps. And it is confusing news for homeowners who receive bids ranging from $6,000 to $18,000 for what appears to be the same job.
What homeowners don't realize...
A brand-new, top-of-the-line AC unit can fail California's mandatory inspection if the existing ductwork is leaking conditioned air. The equipment is only as good as the system it operates within.
This guide exists to help you understand the full picture — so you can ask the right questions, evaluate bids accurately, and make a decision you won't regret.
You've gotten quotes that range wildly in price. You're not sure what Title 24 means, whether you need duct work, or why some contractors mention permits and others don't. You want honest answers before you commit.
Your system still runs, but your energy bills have crept up. You've had a repair or two. You're wondering if you're throwing money at a system that's already past its useful life.
You had a new system installed and it still doesn't keep your home comfortable. Rooms are uneven. Bills are high. The contractor said everything is fine. It isn't.
California's Title 24 energy code fundamentally changed HVAC replacement. It is no longer sufficient to simply install new equipment. Every replacement is now evaluated as a whole system — and that system must pass mandatory third-party testing before the permit closes.
What HERS Testing Verifies
A certified HERS rater — completely independent from your HVAC contractor — tests two things: duct leakage and airflow performance. If either fails, corrective work is required before the permit can close. This is not optional and cannot be waived.
The most common surprise for homeowners: a brand-new AC unit can fail inspection because of the existing ductwork. If your ducts are leaking conditioned air into the attic, the system fails — regardless of how new or efficient the equipment is.
This is why duct evaluation is a mandatory part of every Point Loma system replacement. We assess duct condition before we quote, so there are no surprises after installation.
Permit Required
Every HVAC replacement in California requires a city building permit. The permit triggers mandatory inspections and ensures the installation meets current code.
HERS Rater Verification
A third-party HERS rater — independent from your contractor — tests duct leakage and airflow after installation. This is state-mandated, not optional.
Duct Leakage Testing
Ducts must meet California's leakage thresholds. If they fail, sealing, repair, or replacement is required before the permit closes.
Compliance Documentation
Upon completion, you receive permit approval and HERS verification certificates. These documents protect your home's value at resale.
No Waivers Allowed
California energy code compliance cannot be waived by the homeowner or contractor. Any contractor who suggests otherwise is exposing you to significant risk.
| Factor | Heat Pump | Traditional AC + Furnace |
|---|---|---|
| Heating & Cooling | Single system for both | Separate systems required |
| Energy Efficiency (Mild Climate) | Excellent — ideal for San Diego | Good — less efficient in mild winters |
| Upfront Cost | Moderate to High | Moderate |
| Operating Cost | Lower (electric only) | Higher (gas + electric) |
| California Rebates | Often qualifies | Limited rebates |
| Electrification Alignment | Fully aligned | Gas dependency |
| Best For | Most San Diego homes | Homes preferring existing gas |
| Factor | Ductless Mini Split | Central Air |
|---|---|---|
| Ductwork Required | No — small wall penetration only | Yes — existing or new ducts needed |
| Room-by-Room Control | Yes — each zone independent | Limited without zoning system |
| Energy Efficiency | Very high — no duct losses | Good — depends on duct condition |
| Best For Older Homes | Excellent — no duct retrofit needed | Requires duct evaluation/upgrade |
| Whole-Home Uniformity | Requires multiple units | Single system for whole home |
| HERS Testing Required | Yes — California still requires it | Yes — mandatory |
Watch how a ductless mini split system is installed in a San Diego home — from wall penetration to final commissioning.
What homeowners don't realize...
A mini split installation requires no ductwork — just a small 3-inch wall penetration for the refrigerant lines. For older San Diego homes without existing ducts, this is often the most cost-effective path to whole-home comfort.
No Ductwork Required
Only a small wall penetration for refrigerant lines and wiring.
Room-by-Room Control
Each zone operates independently — no heating empty rooms.
HERS Testing Still Required
California still requires third-party verification even for mini splits.
Coastal-Rated Options Available
Anti-corrosion coatings protect against salt air near the ocean.
A contractor who hesitates on any of these questions is a red flag.
Will you pull a city permit for this installation?
Required by California law. No permit means no inspection, no compliance verification, and potential problems at resale.
Is third-party HERS testing included in this quote?
Mandatory for most HVAC replacements in California. If it's not in the quote, you'll pay for it later — or the job won't close.
What happens if my existing ductwork fails leakage testing?
You need to know upfront. A compliant contractor will explain the conditional process clearly, not avoid the question.
How do you size the system — do you perform a Manual J calculation?
Guessing by square footage leads to oversized systems that short-cycle and create humidity problems.
Can you provide permit approval and HERS verification certificates upon completion?
These documents protect your home's value at resale and prove the installation was done correctly.
What is your process if the ductwork needs remediation?
A clear, documented process means no surprise costs. Vague answers mean you're absorbing the risk.
Are you licensed and insured in California?
Verify the contractor's license at CSLB.ca.gov. Never hire an unlicensed contractor for HVAC work.
What warranty do you provide on labor, and what does it cover?
Equipment warranties are from the manufacturer. Labor warranties are from the contractor. Know the difference.
"Point Loma walked us through the entire permit process and HERS testing. Our old contractor never mentioned any of this. The system passed inspection on the first try and our energy bills dropped noticeably."
Michael T.
Point Loma
"We had a new AC installed by another company two years ago and it never worked right. Point Loma came out, found the ductwork was leaking 35% of the air, and fixed it properly. The difference is night and day."
Sandra R.
Ocean Beach
"Our 1960s home had original ductwork that was completely inadequate. The team explained everything clearly, gave us options at different price points, and completed the job with permits and documentation. Very professional."
James & Carol H.
Mission Hills
"I asked three contractors about permits and HERS testing. Two of them tried to talk me out of it. Point Loma was the only one who said it was non-negotiable. That told me everything I needed to know."
David K.
La Jolla
"The whole-home evaluation was incredibly thorough. They found that our system was oversized, which explained why our upstairs was always uncomfortable. The new properly-sized system is a completely different experience."
Patricia M.
North Park
"Living near the water, I was worried about salt air damage. They recommended a coastal-rated unit with anti-corrosion coating and explained exactly why. Two years in and everything looks and works perfectly."
Robert L.
Coronado
Educational and no-pressure. Before you make a decision, schedule our comprehensive whole-home evaluation. We don't just look at the box outside — we evaluate your entire home's comfort system.
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