We install, replace, and repair AC systems, furnaces, and heat pumps across Morrisville, plus ductless mini splits for additions and garage conversions that never got proper ductwork. Every install starts with an actual load calculation, not a guess of the old unit's size. NATE certified technicians, flat rate pricing, quoted before we touch anything.
Alternative Aire is a local HVAC company built on one idea: the person who answers your call should be the same person who ends up in your attic fixing the problem. No call center in another state, no script, just a Morrisville-area crew that shows up and stays accountable for the work.
We’ve been at it since 2009, with more than 30 years of combined hands-on experience across the team today. A lot of what we install here is still running on builder-grade sizing from the original construction, not a real load calculation, and that’s exactly what we fix. Every technician carries a NATE certification, and the work stays with our own team, never a subcontractor.
A builder-grade AC unit gets sized to pass inspection, not necessarily to match how you actually live in the house. When it's time to replace one, we run a real load calculation first and size around that instead of copying the tonnage that was there.
Same approach for a furnace. We size the replacement to your house as it exists today, additions and all, not to a builder's original spec sheet from whenever the neighborhood went up.
A garage conversion, a finished bonus room, an addition that never got tied into the main system, a mini split covers that space without your primary unit stretching to reach it.
A unit that runs constantly, warm air out of the vents, a compressor that's finally quit: we diagnose the actual cause first and tell you honestly whether repair or replacement is the better call.
A heat pump stuck in defrost, or blowing cold air when it should be heating, is almost always a control board or reversing valve issue. One visit usually tells us which.
Won't start. Short cycles. Trips the breaker on a regular basis. We track down the real cause before recommending anything, and if the furnace has reached the end of its run, we'll say so plainly.
What's Actually Protected
Morrisville Christian Church on Church Street is the clearest example: built in 1872, added to the National Register in 2012, and owned by the town since 1976. A property with that kind of individual landmark status needs a Certificate of Appropriateness for exterior changes.
What's Not
If your home isn't one of those specifically designated landmark properties, and for the overwhelming majority of Morrisville, it isn't, that permitting step doesn't apply. We can confirm either way before we ever quote a job.
1. Book Your Appointment
Call us or book online. Same-day appointments are usually available across Morrisville.
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.
Licensed & Insured:
NC H3-Class 1 #30223, and every job we take on across Morrisville is covered by real insurance, not a certificate that just looks good framed on a wall.
Flat Rate Pricing, Backed by an Inspection:
You get one number, and it's the number you pay. It comes after we've looked at the system ourselves, never before.
BBB A+ Accredited:
That rating comes from resolved complaints, not a fee we paid. Look up Alternative Aire reviews yourself and see what actual customers say.
NATE Certified Technicians:
Every tech on staff trained and tested on the systems they actually work on, in-house. Nobody's calling in a crew for the day.
Workmanship Guarantee
An install or repair that doesn't hold up gets fixed. No separate fee, no argument.
17+ Years in Business:
Founded in 2009, back when a good chunk of Morrisville's current neighborhoods hadn't broken ground yet. We've kept pace with this town as it grew.
A lot of Morrisville’s housing stock is newer, but that doesn’t make a full system replacement cheap when a builder-grade unit finally gives out. Paying it all upfront isn’t realistic for most households, so we set up financing that lets the decision come down to what your house actually needs.
The process is straightforward. We work with the Wells Fargo Home Projects Credit Card, and you can apply during the same visit where we’re already looking at your system. Once you’re approved, the total gets broken into monthly payments instead of a single bill at the end of the job. Repair work is included in that too, it’s not reserved for full installs only.
Bring it up when you call, and we’ll run through actual numbers for your job before scheduling anything.
Morrisville had fewer than 1,500 residents as late as 1990. By 2020 that number was 29,630, most of that growth arriving after Lenovo set up its U.S. headquarters here in 2005 and Research Triangle Park’s expansion pulled thousands of tech workers into town.
What Fast Growth Means for Your System
Neighborhoods like McCrimmon at the Park, built by Pulte Homes starting in 2005, and mixed-use developments like Park West Village, opened in 2007, represent most of what Morrisville actually looks like: newer construction, tighter building envelopes, and townhomes or attached homes where a shared wall changes how a system should be sized. Builder-grade equipment installed to meet code minimums isn't always equipment sized for how a specific household actually uses the space.
Why That Matters for Repairs and Replacements
We run a real load calculation on every full install, whether the home is brand new or twenty years old, because a new system and a correctly sized system aren't always the same thing here.
What HVAC services do you offer in Morrisville?
Is it better to repair or replace my AC?
Under 10 years old, and a repair quote that lands under half of what a new system would cost, repair is generally the smarter move. Once a unit’s closer to 15, or the repair itself starts eating into replacement-level cost, we’ll walk you through why replacing makes more sense.
How much does AC installation cost in Morrisville?
Do you offer financing for AC or furnace installation?
We do, through the Wells Fargo Home Projects Credit Card, and repair costs qualify for it too, not just brand new equipment.
Do I need a permit for HVAC work on my property?
Only if your home carries individual historic landmark status, like the Morrisville Christian Church property does. Almost every other home in town doesn’t need a Certificate of Appropriateness for HVAC work.
Are you licensed and insured in North Carolina?
We are. NC H3-Class 1 #30223, fully insured, and BBB A+ Accredited on top of that. Every tech carries NATE certification, and none of them are subcontracted in for a single job.
Do you offer same-day or emergency HVAC repair?
We keep space open in the schedule for it. A house with zero heat or zero cooling gets bumped ahead of routine appointments.
Can you install a mini split in a home without existing ductwork?
Yes, it’s a routine fix for garage conversions and bonus rooms in Morrisville’s newer builds, especially additions finished after the house’s original ductwork layout was already locked in.
How often should my furnace or AC be serviced?
We provide professional AC installation services throughout Durham and the surrounding Triangle area, including:
