Sinking another few hundred dollars into an HVAC system that broke down twice last summer starts to feel like throwing good money after bad, and most people sense it well before anyone tells them. Utility bills climb a little more each season, certain rooms never match the thermostat, and the equipment runs longer and longer to do the same job it used to handle easily. Calderon HVAC and Plumbing Inc helps homeowners and business owners in and around Asheboro, NC, figure out where that line falls, then handles HVAC installation and replacement when the numbers point that way. Nobody here pushes new equipment on anyone, and if your system has years left in it, we'll say so.
Serving the Asheboro, NC, area, Calderon HVAC and Plumbing Inc. operates as a heating, cooling, and plumbing contractor for residential, commercial, industrial, and new construction projects. Full system replacements and brand-new installations are at the center of what our team does, along with high-efficiency equipment, energy-efficient upgrades, load-based system sizing, duct modifications, and smart thermostat installations. Newly built homes and commercial projects are handled from the planning stage forward, which comes naturally to a company that grew out of the construction business.

Here's the pattern almost everyone describes. Their system still runs, technically, but it never quite catches up on a hot afternoon or a cold morning. Repair visits have become an annual event instead of a rare surprise. The upstairs sits five degrees off from the downstairs no matter where the thermostat lands, and the power bill keeps creeping up while the house feels less comfortable than it did three years ago.
Age explains most of it. Heat pumps typically last 10–15 years, and gas furnaces 15–20, with performance gradually declining toward the end rather than falling off a cliff. Compressors lose capacity, heat exchangers develop stress cracks, and refrigerant leaks become an annual expense. Older equipment also runs on refrigerants that are being phased out, which drives up the cost of a simple recharge. Underneath all of that, plenty of systems were oversized or undersized to begin with, meaning the house was never going to feel right regardless of how well the equipment was maintained.
Replacing a system correctly starts with a load calculation rather than matching the tonnage that's already there. Square footage, insulation, window count and orientation, ceiling height, and ductwork condition all feed into that number, and getting it right is what separates a comfortable house from an expensive disappointment. From there, we walk you through equipment options at different efficiency levels, explain what each tier costs up front versus what it saves monthly, and check whether your existing ducts can actually handle the new system. Installation day covers removing the old equipment, setting up the new indoor and outdoor units, connecting the refrigerant lines and electrical components, making any duct modifications, and performing a full startup with airflow and pressure testing. Permits and inspections are our responsibility, and one of the perks of hiring an HVAC contractor who came up through construction is that the paperwork side never becomes your problem.
What you end up with is a house that holds temperature evenly, a utility bill that reflects modern efficiency, and equipment that isn't going to surprise you next July. Manufacturer warranties get registered on your behalf so nothing lapses on a technicality, and our own one-year workmanship warranty sits behind the installation itself. Plenty of customers tell us the biggest difference is the quiet, since newer equipment runs at lower speeds for longer stretches instead of slamming on and off all day.
From a single-family changeout to a full commercial buildout, our crew handles it all.
Most home changeouts wrap up in a single day, though jobs involving new line sets, electrical upgrades, or ductwork can run into a second day. Our technicians protect floors and walkways, haul away the old equipment, and clean up before leaving. You'll also get a walk-through of the new thermostat and a straightforward explanation of what maintenance the system needs going forward.
Businesses can't shut down for three days while equipment gets swapped, so scheduling gets built around how your operation actually runs. Rooftop units, split systems, and general commercial equipment all fall within our scope, including crane coordination when a rooftop job calls for it. Tenant improvement work and phased replacements across multi-unit buildings are options for property owners managing several spaces at once.
Properties without existing equipment, or spaces being converted and conditioned for the first time, need a system designed from the ground up. That process includes load calculations, equipment selection, duct design, electrical coordination, and thermostat placement. Doing the design work up front prevents the comfort complaints that show up months later when someone rushed the planning.
Builders and general contractors can hand off the mechanical scope and stop worrying about it. Equipment selection, duct layout, and sizing get worked out during design rather than patched together after the drywall goes up. Coordinating with framers, electricians, and plumbers is second nature for us given where our HVAC company came from.
Bigger equipment doesn't mean better comfort, and an oversized system cools the air too fast to remove humidity, leaving rooms cold and clammy. Load calculations account for the real characteristics of your building rather than assuming the last installer got it right. Getting this step right is the single biggest factor in whether you'll be happy with the new system, and it's where careful HVAC service sets itself apart from a quick equipment swap.
New equipment paired with undersized or leaky ductwork rarely performs as advertised, which is why we evaluate the duct system before recommending any changes. Adjustments might mean resizing a few runs, adding a return, sealing joints with mastic, or insulating sections that pass through an attic. Some of the most noticeable comfort improvements we deliver come from the duct side rather than the equipment itself.
Long cooling seasons in this part of the state give efficient equipment plenty of runtime to pay for itself, particularly in homes currently running something 15 years or older. Higher-tier systems also remove more humidity from the air, which matters a great deal during a sticky North Carolina August. Comparing quotes from different HVAC companies gets easier when we explain what the efficiency ratings actually mean for your monthly bill.
Utility rebates and manufacturer promotions come and go throughout the year, and several of them require applying before work begins rather than after. Variable-speed blowers, two-stage compressors, and better filtration all contribute to lower operating costs and steadier temperatures. Our team will run the numbers with you so the decision rests on real numbers rather than a sales pitch.
Modern thermostats learn your schedule, adjust automatically, and let you check on the house from anywhere, though the useful part is knowing how to set them up properly. Installation includes wiring, configuration, and a walk-through so the features are actually used rather than ignored. Heat pump owners especially benefit from settings that keep the expensive backup heat from running unnecessarily.
Swapping a dirty filter every month or two is the cheapest favor you can do for your cooling system, though it won't fix everything. Air conditioning services we provide include AC repair, installation, replacement, seasonal maintenance, tune-ups, and emergency visits for houses and commercial buildings. Anyone framing up a new property can also bring us in early to get the cooling side sorted.
Vents blowing air that feels lukewarm on a heat pump is actually normal behavior, so knowing the difference between that and a real problem saves an unnecessary service call. Heating services we cover include furnace repair and installation, heat pump repair and installation, maintenance visits, and emergency repairs available at any hour. Commercial buildings, new construction jobs, and boiler work are all part of what we do.
Cooking, showering, and simply breathing put a surprising amount of moisture and particles into the air a house recirculates all day. The indoor air quality equipment we install and offer includes air purifiers, whole-home cleaners, UV lights, upgraded filters, dehumidifiers, ventilation improvements, and duct cleaning.
Uninsulated ducts running through a hot attic lose a chunk of their cooling before the air ever reaches a register. Ductwork services we provide include duct installation, replacement, repair, sealing, insulated duct systems, airflow balancing, and commercial and new construction layouts. Tightening up a leaky system usually shows up on the next utility bill.
Property managers juggling several buildings rarely have time to chase down HVAC problems one call at a time. Commercial HVAC services we handle include rooftop unit service, repairs, preventive maintenance, equipment replacement, tenant improvements, and installs ranging from light commercial to industrial. Putting a service agreement in place means one point of contact and fewer surprises.
That faint sound of water running when nothing is turned on deserves attention before it becomes a much larger conversation. Plumbing repairs we handle include leak repairs, pipe damage, toilets, faucets, garbage disposals, and drain problems in residential and commercial settings. Emergency calls come through at all hours, including weekends and holidays.
The sacrificial anode rod inside a tank quietly protects it from rust, and replacing that one part can add years to the unit. Water heater services we offer include repair, replacement, maintenance, and new installations for tank and tankless models, both gas and electric. Greater commercial demands get sized properly so the hot water doesn't run out mid-shift.
Wipes labeled "flushable" are the number one culprit behind the clogs we get called out for, no matter what the packaging claims. Drain and sewer services we provide include drain cleaning, hydro jetting, camera inspections, clog removal, root intrusion removal, sewer line repair, and sewer line replacement. Clearing a main line properly beats another temporary fix that lasts a few weeks.
Polybutylene pipe was installed in many homes in the eighties and nineties, and it's known for failing with little warning. Repiping and water line services we handle include whole-home repiping, water line repair and replacement, pipe upgrades, commercial piping, and copper or cross-linked polyethylene (PEX) work. New construction plumbing is built with materials meant to outlast the mortgage.
A slow-filling toilet or a faucet with weak flow often traces back to the shutoff valve rather than anything you can see. Plumbing installation and replacement services we offer include toilets, faucets, sinks, showers, tubs, fixture upgrades, kitchen and bathroom remodels, and new construction plumbing. Anything we install gets tested before we pack up and head out.
Water damage in a commercial building rarely stops at your unit, and neighboring tenants notice fast when something goes wrong. Commercial plumbing services we provide include repairs, preventive maintenance, plumbing replacements, tenant improvements, and service agreements for restaurants, offices, retail spaces, and other small commercial properties. Scheduled maintenance is much cheaper than an emergency call plus cleanup.
Installing a system is a big investment, so here's what you get when our name is on the job.
Round-the-clock availability means a new system that acts up on a Sunday gets attention on Sunday, not Monday.
More than 15 years in the trades informs every load calculation and every install, and our reputation around here rides on doing it right the first time.
Replacing a full system is a significant expense, and financing options help spread the cost over time.
Detailed quotes come free of charge, so you can compare HVAC services and take your time deciding.
Equipment from every major manufacturer is available through us, matched to your home, your budget, and how you actually use the space.
A one-year workmanship warranty covers the installation itself, separate from any coverage the manufacturer provides for the equipment.
Proper sizing comes from a load calculation that accounts for square footage, insulation levels, window count and orientation, ceiling height, and local climate data. Guessing based on the old unit's size just repeats whatever mistake was made last time. Oversized equipment short cycles and leaves humidity behind, while an undersized system runs constantly and never quite catches up.
A standard residential changeout typically takes one full day when the existing ductwork stays in place. Adding duct modifications, relocating equipment, or upgrading electrical service can push it to two or three days. Commercial replacements vary widely depending on rooftop access, crane requirements, and how much of the building must remain operational during the work.
Long cooling seasons here mean efficiency upgrades have plenty of runtime to pay off, particularly for households currently running equipment that's 15 years or older. Variable-speed and two-stage systems also maintain temperatures more evenly and remove more humidity, which matters a lot in this climate. Rebates from utilities and manufacturers can narrow the price gap, so it's worth asking what's available before committing.
The process starts with a load calculation and an equipment recommendation, followed by permitting. Installation day covers removing the old system, installing new indoor and outdoor units, connecting refrigerant lines and electrical components, and modifying ductwork as needed. Startup, airflow testing, thermostat setup, and a walk-through finish things off, with a municipal inspection following afterward.
Frequent breakdowns, rising energy bills, uneven temperatures between rooms, and equipment past its expected lifespan all point toward replacement. Repairs on older units also get complicated when parts are discontinued, or refrigerant is being phased out. Adding up what you've spent on repairs over the past two years usually makes the decision clearer than any single quote.
FAQs reviewed by Filiberto Calderon, owner of Calderon HVAC and Plumbing Inc, an experienced and local HVAC contractor.
Contact Calderon HVAC and Plumbing Inc for a free estimate on a new system sized and installed for your property. We'll walk you through the options honestly and let you decide what makes sense.