Services

Four ways to work with us.

Each is a fixed fee, quoted from your plans. Send them and we come back with a number, not an hourly estimate. Residential: custom homes, additions, and accessory units across California.

Load calc

Manual J

A room-by-room Manual J load calculation for each system, with the report for your permit set. A good fit when a designer or contractor is handling the rest of the design and needs the loads done right.

Fixed fee, quoted from your plansGet a quote
Full HVAC designOur core service

Manual J, S, and D

Manual J load calc, Manual S equipment selection, Manual D duct design or room airflows for your contractor's layout, ventilation and exhaust, and equipment schedules, stamped by a licensed California mechanical engineer. Delivered as mechanical sheets or as redlines on your architect's set. Exact scope is in your proposal. Equipment space and clearances are shown early, so the architect and framers can plan around them.

Fixed fee, quoted from your plansGet a quote
Title 24

Residential energy compliance

Energy compliance for new homes and additions, with the CBECC-Res model and the CF1R for your permit set. Modeled to the California Energy Code in effect for your permit application. More on Title 24

Fixed fee, quoted from your plansGet a quote
Design + Title 24

One office, one set of numbers

One office handles the HVAC design and the Title 24 report, so both use the same loads and the same equipment. One point of contact, one set of numbers, and fewer mismatches between the mechanical sheets and the energy report.

Fixed fee, quoted from your plansGet a quote

Light commercial? Ask. We'll tell you straight whether it's a fit.

Indoor air quality levelAdd-on

Fresh air and filtration, designed in.

Some owners want more than the code requires: filtered fresh air ducted to the rooms, higher-rated filters, air sensing, and a smoke mode for wildfire season. The indoor air quality level adds that to the design, worked out with the fan, duct, and Title 24 numbers, so it's designed in, not bolted on later.

It's for projects where the owner has made air quality a priority. It's sold with Full HVAC design or Design + Title 24, not on its own, because each piece changes the loads, the ducts, or the energy model. Exact scope is in your proposal.

Get a quote

  • Balanced ventilation

    Balanced ventilation with an energy recovery ventilator (ERV): filtered outdoor air to bedrooms and living areas, exhaust from baths and laundry.

  • Higher-rated filtration

    MERV 13 to MERV 16 filtration, with the filter size, cabinet, and pressure drop worked into the duct design.

  • Air sensing and smoke mode

    Air sensing for CO2 and fine particles (PM2.5), indoors and out, with a written sequence of operation and a one-touch smoke mode that reduces outdoor air and keeps the filters running.

  • Garage and combustion details

    Garage seal notes, and makeup air designed where a large range hood needs it.

  • Readings review

    A test script and a test-and-balance form for your installer, and our desk review of the readings they send back.

How it works

Three steps, little effort from you.

1

Send plans

Send the plans and a few basics. We come back with questions only when we need them.

2

We calculate and design

We run the load calc, pick equipment to match, and design the ducts, ventilation, and Title 24 model.

3

You get a stamped set

A stamped set and a signed Title 24 report. Plan check questions go straight to the engineer.

Not sure which package?

Send the plans and say what you're trying to get through. We'll tell you which one fits and quote it.

Send your plans