Get three quotes. Then come back and read this page.

Almost never because one firm is greedy. Nearly always because the three are quoting for three different pieces of work and the paperwork does not say so. Put them on five rows — the size specified and where the number came from, what is included besides the equipment, what is explicitly excluded, what happens at handover, and the warranty split into parts and labour with who honours each. The biggest gap is usually the second or third row: duct remedial work, controls, condensate, electrical or permit and inspection. The cheaper quotation often does not exclude those in writing either, which is worse than excluding them, because it arrives later as a change order at the point where the old system is already out.

At least one of them did not calculate. Two competent load calculations on the same house land in the same place, so three different tonnages means somebody used what was already installed, or floor area, or a rule of thumb. Ask each firm for the calculation inputs — glass area and orientation, insulation, air leakage, shading, occupancy and what the ductwork can carry — rather than the summary total. And be more suspicious of the largest than of the smallest: oversizing is the safer-sounding mistake and the more common one, and a system with too much capacity cools without drying the air, short-cycles and wears out early.

Far less than the installation does. Within a class, charge, airflow, duct condition and correct sizing account for more of how a system performs than the name on the cabinet. What is genuinely worth comparing is the warranty: how long the parts cover lasts and what registration it requires, whether labour is covered and by whom, whether the contractor is an authorised servicer for that brand, and how easily parts reach the South Bay — because that decides how long you wait when something fails in August.

Usually not, and in this housing stock the answer is usually one of three things, none of them the equipment: not enough return air, attic duct that has sagged, kinked or come off a boot, or a size nobody ever calculated. All three are found with the same instruments in an afternoon — static pressure against the equipment’s rated limit, airflow at every register, and return capacity. Fixing the return is a day of work and it changes everything downstream of it. A bigger machine behind an undersized return is louder, dearer and no better.

No. There is a business with a similar name elsewhere in the country and we have no connection with it. Our domain is `walkerhvaccrew.xyz` and our telephone number, address and service area are on every page of this site.

Torrance, Redondo Beach, Hermosa Beach, Manhattan Beach, Gardena, Lomita, Carson and Palos Verdes Estates.