Category: emergency-service When your air conditioning quits on a hot afternoon or half the house loses power at night, the first few minutes matter. In Lakewood, many homes were built in the postwar years and later updated in pieces — an older electrical panel...
Category: electrical-services Charging at home changes how an electric vehicle fits into daily life. Instead of planning trips around a public charger, Lakewood homeowners can plug in at night and leave in the morning with a full battery. A proper EV charger...
Category: ac-cooling Even in October, California weather can surprise you. Irvine still gets warm Santa Ana afternoons well into fall, which means your air conditioner is still doing real work. When Irvine homeowners search "ac repair near me," they are...
Apple Valley's desert climate fools a lot of homeowners. Summer gets all the attention, so the furnace sits quietly through months of heat — then the first cold desert night hits in October or November and the heater kicks on for the first time in half a year....
Beaumont summers do not negotiate. Triple-digit afternoons are a normal part of life in the San Gorgonio Pass, and when the temperature climbs, your air conditioner goes from background appliance to the hardest-working machine in your house. The systems that fail in...
October is the sweet spot for heating-system maintenance in Alhambra. Summer's heat is behind us, the first cool nights are arriving, and your furnace or heat pump has been sitting idle for months. A fall tune-up now means your system starts the heating season...
If you live in Anaheim, you have probably noticed it: a fine layer of dust on every surface a day after you clean, allergy symptoms that flare every spring, and those late-summer weeks when wildfire smoke drifts in and the sky turns hazy. Orange County's warm...
Out in the high desert, Adelanto homes ask a lot of their electrical systems. Summer temperatures push air conditioners to run for hours on end, winter nights drop cold enough that heaters and heat pumps kick on regularly, and wind-blown dust works its way into...
Banning's pass climate runs hot — summer temperatures routinely push cooling systems to their limits, while winter nights can dip low enough to need real heat. For many Banning homes, a ductless mini-split system is the most flexible way to handle both. Here is...
October in Agoura Hills means cooler evenings in the foothills and the first nights you'll actually reach for the thermostat. If your furnace has been sitting idle since spring, now is the time to make sure it will fire up reliably when you need it. A little...
Mars HVAC · Los Angeles & Orange County
A new heating and cooling system is one of the biggest comfort investments in your home — and how it performs for the next decade depends less on the brand on the box than on the quality of the installation. Mars HVAC sizes, permits, installs and tests every system the right way, as a licensed C-20 HVAC contractor.
Get a Free HVAC Estimate
Call 310.880.9718
There is no single best system — there is the system that fits your home, your ductwork and how you actually live in it. Every Mars HVAC installation starts with a load calculation based on your home’s size, insulation, windows, orientation and ductwork, so the equipment is matched to the house. Oversized systems short-cycle and leave humidity behind; undersized systems run constantly and still fall behind on hot days.
Full central air conditioning installation and replacement — new condenser, coil or air handler, refrigerant lines and thermostat, with ductwork evaluated first. See AC installation.
One system that heats and cools — in Southern California’s mild winters a heat pump is one of the most practical, efficient ways to do both. See heat pumps.
Room-by-room heating and cooling without ductwork — ideal for additions, converted garages, ADUs, primary suites and older homes never built with ducts. See ductless mini-splits.
If your current system needs a major repair, is well into its service life, uses phased-out R-22 refrigerant, breaks down repeatedly, or simply cannot keep the house comfortable during a heat wave, replacement often makes more sense than another repair bill.
During your estimate we lay out both paths — what a repair buys you and what a new system changes — so you can decide with real numbers in front of you. Start with AC repair or furnace repair if you want the repair picture first.
In-home evaluation with a load calculation and a ductwork check — the right size comes from the calculation, not from the tonnage of the unit being replaced.
You get a written proposal before work begins, with equipment options — central AC, heat pump or ductless — compared honestly for your house.
We protect floors and work areas, set and connect the equipment, pull city permits, and handle inspections. A straightforward like-for-like replacement is typically completed in a day.
We charge and test the system, complete Title 24 verification, verify performance room by room, register your warranty, and review operation and filter care with you.
Mars HVAC does not publish a one-size-fits-all installation price, because there isn’t an honest one: cost depends on the system type, the size your load calculation calls for, duct condition, and permit and Title 24 requirements. What we do publish is how your quote is built — and that your estimate is free.
| Step | What you get | Price |
|---|---|---|
| Installation estimate | In-home evaluation, load calculation, ductwork evaluation and a written proposal | Free estimate |
| Central AC / heat pump / ductless installation | Equipment, installation, permits, Title 24 testing, startup and warranty registration | Written proposal |
| Maintenance plan | Seasonal tune-ups and a written condition report after installation | Quoted with your system |
Request yours on our free HVAC estimate page or call 310.880.9718.
Mars HVAC is operated by Mars Construction Industries Corp, licensed by the California Contractors State License Board — CSLB #1138550 (A General Engineering, B General Building, C-36 Plumbing, C-20 HVAC) · 8605 Santa Monica Blvd, West Hollywood, CA 90069 · 310.880.9718
We install HVAC systems across Los Angeles and Orange County. Pick your city for local service:
A straightforward like-for-like replacement is typically completed in a day. Installations that include duct modification, a relocated condenser, or a full new system in a home that never had central air take longer, and we give you a clear schedule before work begins so you can plan around it.
Not always — but ducts are the most commonly overlooked part of a replacement. If your existing ductwork is intact, sealed, and properly sized, we reuse it. If it leaks, is crushed or deteriorated, or was undersized for the home, correcting it is often the difference between a new system that performs and one that disappoints. We test and tell you what we find.
The right size comes from a load calculation, not from the tonnage of the unit being replaced. Homes change over the years — additions, new windows, better insulation — and the correct capacity changes with them. Our estimates always include that calculation.
In our climate, a heat pump handles the great majority of winter days comfortably, and because it moves heat rather than creating it by burning fuel, it is a highly efficient way to warm a home — one system, one thermostat, one maintenance schedule. A gas furnace can still make sense for homes with large heating loads or a preference for gas heat, and dual-fuel setups pair the two. During your estimate we compare the options for your house honestly.
Usually — with an important caveat. Heat pumps move more air in heating mode than a furnace does, so ducts that were marginal can become noisy or restrictive. We measure your duct system during the estimate and tell you honestly whether it is ready as-is or needs targeted corrections.
Yes. Mars HVAC installations include city permits and inspections and Title 24 compliance testing, including duct leakage and refrigerant charge verification where required.
Call 310.880.9718 or request a free estimate online. We serve Los Angeles and Orange County, including Beverly Hills, West Hollywood, Irvine, Anaheim, Santa Ana, Huntington Beach and Long Beach.
Correct sizing, permitted work, and verified performance — that is the Mars HVAC standard on every installation. Contact us for a straightforward estimate.
