HERS Rater Coordination in Larkspur, CA
Apex identifies the HERS measures your project needs and can coordinate with or refer you to an independent certified HERS rater. Field testing and verification are performed and billed separately by the rater.
How HERS Rater Coordination Works
When field verification is required, Apex identifies the applicable measures and can coordinate with or refer the project to an independent certified HERS rater. Field testing and verification are performed and billed separately by the certified rater.
What's Included
Pricing
Field testing and verification are performed and billed separately by the independent certified HERS rater. Request a quote and we will confirm the scope and fees before any payment.
Why Climate Zone 3 Matters Here
Larkspur's designation as Climate Zone 3 reflects mild, marine-influenced conditions with minimal temperature swings, a factor our energy models account for when calculating your compliance margin.
Estimated from proximity to the nearest CEC reference station — we confirm the exact zone for your project's address before preparing your report.
Frequently Asked Questions
It depends on the compliance path used in your energy model. Certain prescriptive credits — duct sealing, refrigerant charge verification, air leakage testing — trigger a HERS verification requirement. We flag these clearly in every Larkspur report we prepare.
Apex provides Title 24 documentation services for projects in Larkspur, including ADUs, garage conversions, room additions, residential remodels, new construction, HVAC or window alterations, and commercial work. The required compliance process depends on the project scope and permit requirements.
Yes. We evaluate every project against both paths and recommend whichever gets you to compliance with the least cost and complexity — sometimes prescriptive is simpler, sometimes performance modeling unlocks more design flexibility.
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