New single-family homes, modeled in full from your plans. The 2025 Energy Code requires all-electric infrastructure and heat pump water heating for new builds.

Room additions of any size, second stories, envelope alterations and mechanical replacements, scoped only to the work being done so you never pay for more than you need.

Detached ADUs follow the new construction path: all-electric, heat pump water heating, full envelope. Attached ADUs and conversions follow the alteration path, scoped to the work.

Attached JADUs only, typically a converted bedroom or attached garage. They share the home’s envelope and systems, so we document the narrower scope with nothing missed or overcounted.

Garage, basement and unconditioned space into living area, including unpermitted space legalization. A common, often misunderstood trigger that we scope right the first time.

We determine the correct pathway and form for your project. Call (626) 602-0525.

Form produced: CF1RPRF

Used for: new construction, most additions, all ADU types (detached, attached, conversions), JADUs, conversions, and any project involving HVAC or mechanical changes.

A full computerized energy model in CEC-certified software. Walls, windows, roof, HVAC and water heating are all modeled, allowing design flexibility through component tradeoffs.

Forms produced: CF1RADD · CF1RALT

Used for: limited-scope alterations only — typically minor window replacements or small envelope changes with no mechanical system involvement.

Projects involving HVAC, water heating or mechanical systems typically require the Performance Method instead.

Fast, while other providers are running 10–12 day backlogs.

You work directly with the person doing your report.

Your client isn’t surprised at rough inspection.

If the building department has plan check comments, we handle them.