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Design • Build • Maintain

Everything we do.

Homes and businesses, heating and cooling, refrigeration and air quality. If it moves air or moves heat, Delcon designs it, installs it, and keeps it running — same crew, start to finish.

Bright modern home interior kept comfortable year roundRooftop commercial HVAC units above the Bay Area skyline
How we work

A complete lifecycle, not a one-off visit

Plenty of companies either install or service. We do the whole arc — so nobody's pointing fingers when something needs attention three years in.

Design

Design & engineering

Load calculations, equipment selection, and system layouts built around your building — not a catalog default.

Build

Installation & construction

Turnkey installs and replacements, on time and on budget, with after-hours scheduling when downtime matters.

Maintain

Preventative maintenance

Scheduled tune-ups, cleanings, and inspections that keep equipment efficient and catch failures early.

Optimize

Energy audits & retrofits

Find where the money leaks, then fix it — efficiency upgrades and refrigerant retrofits with real payback math.

Optimize

Controls & automation

Smart thermostats, zoning, and building management systems tuned so every space hits its setpoint.

Respond

24/7 emergency service

Nights, weekends, holidays. Stocked trucks and a real person on the phone when the system quits.

For your home

Residential services

Heating & furnaces

Furnace, boiler, and wall heater repair, replacement, and heat pump conversions.

Air conditioning & heat pumps

High-efficiency AC, ductless mini-splits, and cold-climate heat pumps.

Ductwork & ventilation

Duct design, replacement, leak testing, sealing, and room-to-room balancing.

Indoor air quality

Duct cleaning, HEPA and MERV filtration, air purification, and humidity control.

Home energy audits

Whole-home assessments with an upgrade roadmap ranked by payback, plus rebate paperwork.

Comfort Club maintenance

Twice-yearly service, seasonal duct cleaning, priority calls, and member discounts.

For your business

Commercial & refrigeration services

Explore commercial

Commercial HVAC

Rooftop units, split systems, and multi-zone builds from 2 to 100 tons.

Commercial refrigeration

Walk-ins, display cases, and cold storage — CO2, propane, glycol, and ammonia systems.

Design-build projects

One partner from drawings through commissioning, coordinating every trade on site.

Refrigerant retrofits

Low-GWP transitions that keep you compliant and cut operating cost.

Building management systems

BMS installs, upgrades, remote monitoring, alarming, and fault detection.

Service agreements

Custom maintenance schedules with priority response and detailed reporting.

Delcon technician working on a furnace during a service call

What every job includes

  • Licensed, insured, background-checked technicians
  • Upfront pricing before any work starts
  • Clean job sites and drop cloths, every visit
  • Manufacturer warranties honored in full
  • Financing available on system replacements
  • 24/7 emergency availability, 365 days a year
The Comfort Club

Year-round care for $34.99 a month

A simple membership that keeps your system clean and your air fresh — and puts you first in line whenever you need us.

  • Coil cleaning & filter changes, twice a year
  • Duct cleaning before allergy season and before winter
  • Priority service calls, day or night
  • Member discounts on large repairs and replacements

Tell us what's not working.

Home or business, one system or a whole facility — we'll take a look and give you a straight answer within one business day.

Request a quote
Call DelconGet an Estimate