Phone
Call +1 (213) 805-8137. Open daily 07:00–20:00 local. We pick up live during open hours; after-hours messages are returned the next business morning.
Book the room-by-room HVAC comfort audit.
Call +1 (213) 805-8137 or use the booking widget. Start with the room, the concern, and what you have already tried. The audit takes 60–90 minutes onsite; the written engineering report arrives within 48 hours.
How to reach us.
Three reliable channels. Pick the one that fits your moment.
Online booking
Use the booking widget anywhere on this site (the popup button labeled "Book comfort audit") or go directly to https://nexfield.pro/crm/book?u=205. Pick a time, share the room concern, and the team confirms within one business day.
Email [email protected] for non-urgent questions, second-opinion quote reviews, or HOA paperwork coordination. Phone or booking widget is faster for scheduling an audit.
What to tell us when you reach out.
The clearer the input, the faster the audit reaches a useful recommendation.
Lead with the room and the symptom. "Primary bedroom is 6 degrees warmer than the hallway thermostat at 11 p.m." is more useful than "the system isn't working." Mention the time of day the problem appears, whether the door is usually closed, whether pets sleep in the room, the existing equipment brand and approximate age if you can see the nameplate, the filter size and type if you have changed one recently, any smoke or allergy concerns, and whether you have already received quotes from other contractors. If you are calling about a wildfire smoke event, mention which AirNow PM2.5 reading prompted the call.
Useful constraints to share early: HOA noise or aesthetic rules in your building, historic-preservation status (Pasadena, certain Hancock Park areas), gate or parking access for crew vehicles, tenant coordination if the property is leased, roof access challenges, and any electrical panel age or load concerns. None of this is required to book; sharing it up front just shortens the time to scope.
Service area.
Los Angeles County, including all major cities and most neighborhoods. If your address is in unincorporated county territory, we coordinate with Los Angeles County Building and Safety instead of LADBS.
Active service area: City of Los Angeles, Pasadena, Santa Monica, Beverly Hills, Burbank, Glendale, Culver City, West Hollywood, Long Beach, Manhattan Beach, Redondo Beach, Torrance, Inglewood, Calabasas, Malibu, La Cañada Flintridge, plus neighborhoods Studio City, Sherman Oaks, Encino, Tarzana, Woodland Hills, Pacific Palisades, Brentwood, Mar Vista, Venice, Silver Lake, Echo Park, Highland Park, Eagle Rock, Los Feliz, Hollywood Hills, Downtown Los Angeles, Koreatown, and Altadena. If your address is outside this area, call us anyway; we may still be able to schedule depending on the scope.
Hours and response time.
We are not a 24/7 emergency dispatch. We are an engineering practice that schedules audits and installs on a calendar.
Phone hours: daily 07:00–20:00 local. Live answer during open hours. After-hours messages are returned the next business morning. Audit visits typically schedule within 5–10 business days; rush scheduling is available for active wildfire smoke events or imminent home sale closings. Install scheduling depends on equipment lead times (typically 1–4 weeks for mid-tier and 3–6 weeks for premium ductless multi-zone) and permit timelines (1–10 business days for over-the-counter LADBS permits, 3–6 weeks for plan-check permits).
Engineering scope is signed by Marcus Reyes, P.E., Lead Mechanical Engineer & Comfort Lab Director. P.E. (Mechanical, California) · ASHRAE Member · BPI Heat Pump Energy Professional (HEP-IDL).
Questions homeowners ask before booking.
Short answers written for voice search, AI summaries, and real decision-making.
What phone number should I use?
Call +1 (213) 805-8137. The line is open daily 07:00–20:00 local.
Can I book online?
Yes. Use the booking widget on any page or go to https://nexfield.pro/crm/book?u=205 directly.
What should I prepare?
Photos of the affected room, thermostat, filter slot, outdoor unit, breaker panel, and any existing competing quote are useful. Not required to book.
Do you do emergency repairs?
No. We are an installation and audit practice. For emergency no-cool or no-heat repair, call a 24/7 service contractor; we are happy to do a follow-up audit afterward to plan a permanent fix.
Is there an audit fee?
Yes, and it is credited against any installed scope so homeowners who proceed are not paying twice.
Three ways to reach us. Pick one.
Phone +1 (213) 805-8137. Booking widget. Email [email protected]. Engineering scope signed by Marcus Reyes, P.E..