Local HVAC Company in Hillsborough, NC

We install, replace, and repair AC systems, furnaces, and heat pumps for homes throughout Hillsborough, plus ductless mini splits for additions and rooms that never got proper ductwork run to them. A large share of this town sits inside a protected historic district, so we also handle the permitting that comes with it. NATE certified technicians, flat rate pricing, quoted before we touch anything.
BBB A+ Accredited
Licensed NC H3-Class 1 #30223
1,014+ Google Reviews

About Alternative Aire HVAC Services

We’re not a national chain routing your call through an out-of-state center. When you call, you’re talking to the same people who show up at your house and the same people who stand behind the work once they’ve left. 

We’ve been doing this since 2009, and the technicians on the team today carry more than 30 years of combined HVAC experience. A good part of that experience is specific to Hillsborough: older homes, original ductwork, and a historic district that changes how a job gets planned before it ever gets started. 

Every technician holds a NATE certification for the equipment they actually work on, and that work stays with our own crew. It never goes to a subcontractor.

AC Installation, Furnace Repair & Complete HVAC Services

AC Installation & Replacement

An older Hillsborough home rarely has ductwork built to a modern standard, so we size the replacement around what's actually there instead of assuming a layout that doesn't exist.

Furnace Installation

We size the new furnace to your house as it stands today, additions and all, not to a spec sheet from whenever the original system went in.

Ductless Mini Split Installation

A converted outbuilding, a finished attic room, an addition tacked onto a historic property, a mini split covers that space without tearing into walls that were never meant to carry new ductwork.

AC Repair

Constant running, warm air coming through the vents, a compressor on its way out, whatever the symptom, we get to the actual cause first, then lay out whether fixing it or replacing it makes more financial sense.

Heat Pump Repair.

If a heat pump won't come out of defrost, or it's pushing cold air during a heating cycle, the culprit is usually the control board or the reversing valve. A single visit typically settles which one it is.

Furnace Repair & Replacement

Fails to start. Cycles too often. Keeps popping the breaker. We isolate the real problem instead of throwing parts at it, and if the unit's genuinely done, you'll hear that from us straight, no upsell attached.

Hillsborough's Historic District and HVAC Permits

Hillsborough’s historic district is not a small pocket downtown. It covers 1,265 acres, both the commercial core and the surrounding residential neighborhoods, and it’s been protected under a local preservation ordinance since 1973. That means more homes here fall under permitting rules than in most towns we serve.

What Needs a Certificate of Appropriateness

Exterior changes inside the district, including where a new condenser sits or where a mini split line set runs, generally need a Certificate of Appropriateness from the Historic District Commission before work begins. Some smaller changes can be cleared as minor work by town staff instead of going to a full commission hearing, and we know which is which before we ever schedule the job.

If Your Home Is Outside the District

Standard permitting applies, and the process moves faster. We confirm which situation your address falls into as part of the estimate, not after.

Our AC & Furnace Installation Process

1. Book Your Appointment

Call us or book online. Same-day appointments are usually available across Hillsborough.

2. Get Upfront Pricing

We inspect the system first and explain exactly what it needs before quoting a flat rate.

3. We Install It Right

Most installs and repairs finish in a single visit, sized correctly and done right the first time.

4. Enjoy Your Comfort

Every job is backed by our guarantee, so you're covered long after we've left.

Why Hillsborough Homeowners Choose Our HVAC Contractors

Working in a historic district takes more than a truck and a toolbox. Here’s what actually stands behind the work when you call us instead of the next name on the list.

Licensed & Insured:

NC H3-Class 1 #30223, and coverage that applies to every job we take on in Hillsborough, historic district or not.

Flat Rate Pricing:

You know the price before work begins, and it's based on what we actually find, not a guess made in advance.

BBB A+ Accredited:

Look up our rating directly. It reflects how disputes actually got resolved over the years, which isn't something you can buy.

NATE Certified Technicians:

Every tech trained and tested in-house on the systems they actually work on. No outside crews called in for the day.

17+ Years in Business:

Founded in 2009. We've worked on homes in Hillsborough's historic core and homes well outside it, and we size for the house in front of us either way.

Workmanship Guarantee

An install or repair that doesn't hold up gets fixed. No separate fee, no argument.

Financing a New AC or Furnace in Hillsborough

Older homes sometimes turn a system replacement into a bigger project than expected, once ductwork or the electrical panel need attention alongside the new equipment. That adds up fast, and few people want to cover it in a single payment.

We set up financing through the Wells Fargo Home Projects Credit Card to take that pressure off. The application takes a few minutes and happens right there during your appointment. Get approved, and the total splits into manageable monthly payments instead of one number at the end. A repair bill qualifies just as much as a full installation does.

If cost is what’s holding a decision up, mention it on the call. We’ll run the actual numbers with you before scheduling anything.

The Eno River and What It Means for Sizing a System

Hillsborough’s historic district sits where the Great Indian Trading Path once crossed the Eno River, and that river runs right along the edge of the district today. Homes closest to it sit under heavier tree cover and higher humidity than the newer construction further from the water.

Why That Changes the Math

A shaded, humid lot loads a cooling system differently than an open one does, even at identical square footage. Sizing off square footage alone is exactly how a lot of older Hillsborough homes end up with a system that runs constantly and still doesn't pull the humidity out of the house.

What We Do Differently

We size for the actual site: sun exposure, tree cover, and the age of the ductwork already in the walls, not just a number pulled from a listing.

HVAC Customer Reviews

Our BBB A+ rating comes from more than 1,014 verified Google reviews. Have a look for yourself.
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Mark Murray profile picture
Mark Murray
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Our technician Solomon Lopez was great. He was very thorough in walking me through what needed to be done and why. The price was on the low end compared to other estimates that I received too!
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Andrew profile picture
Andrew
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I called my go to company alternative Aire to help me with an issue with my HVAC and Phil came out and did a great job! Great customer service, he diagnosed the issue quickly and had it fixed within 15 minutes. He even took a look to make sure everything else was looking Okay. Cool air coming into the house now feels great. Thanks for your help Phil!
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Marie Martinez profile picture
Marie Martinez
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Phillip came in a timely manner and was so professional. He worked so quickly and was extremely thorough, checking every part of my system on such a hot day. I would highly recommend this company and especially the technician named Phillip.
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Quinn Schwartz profile picture
Quinn Schwartz
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Charles is very helpful and attentive
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CCS 762 profile picture
CCS 762
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Charles has been my guy for 3 years. Always comes through. Thank you.

Hillsborough HVAC FAQ

What HVAC services do you offer in Hillsborough?

Six areas of work, all under one roof: AC install and replacement, AC repair, furnace install and replacement, furnace repair, heat pump repair, and ductless mini split installs. The same NATE certified crew handles every one.
A system under 10 years old, paired with a repair quote that lands under half the price of a full replacement, is usually worth fixing. Push past 15 years, or watch that repair estimate creep toward replacement territory, and we’ll lay out why a new system typically pays off faster.
Depends entirely on the house. System size, the efficiency tier you go with, and how much shape your current ductwork and wiring are in all factor into the final number. Expect a written estimate after a walkthrough, not before one.
We do, through the Wells Fargo Home Projects Credit Card. Repairs are covered under it too, so it isn’t limited to full system swaps.
Homes inside the historic district generally need either a Certificate of Appropriateness or a staff-approved minor work permit, depending on what the job involves. Outside the district, standard permitting applies and takes less time. We sort out which one your address falls under before quoting the job.
We are, under NC H3-Class 1 #30223, fully insured, and BBB A+ Accredited on top of it. Every technician carries NATE certification, and none of them are subcontracted in for a single day.
We reserve schedule space for exactly that. A house with zero heat or zero cooling gets moved ahead of standard appointments.
Yes, it’s a routine choice for additions, converted outbuildings, and older Hillsborough homes where cutting in new central ductwork isn’t practical or isn’t allowed given the property’s historic status.
Twice a year is the standard we’d recommend: once before summer humidity builds up, once ahead of the season’s first freeze. It’s the interval that catches a small problem while it’s still small.

Areas We Serve in Durham & Nearby Communities

We provide professional AC installation services throughout Durham and the surrounding Triangle area, including: