AC System Replacement
When it’s time to replace, we guide you through modern options that suit your needs and budget, ensuring a seamless transition.
📞 (719) 220-9646 — Call NowProfessional AC System Replacement
When it’s time to replace, we guide you through modern options that suit your needs and budget, ensuring a seamless transition. Our experienced team at ThermalPros Heating and Air Conditioning delivers outstanding results for every client in Longmont and surrounding areas.
Contact us today to schedule your HVAC service. We offer free estimates and flexible scheduling to fit your needs.
How We Handle AC System Replacement
No two AC System Replacement situations are identical, so we don't pretend otherwise. Full HVAC system replacement is the biggest mechanical investment in your home, so we treat it that way. Our AC System Replacement process takes 2-3 visits before installation day: first for a Manual J load calculation and duct assessment, then for equipment selection and financing options, then for the install itself (typically 1-2 days). We handle everything — permit applications, old system disposal (including refrigerant reclamation per EPA regulations), new equipment installation, duct modifications if needed, thermostat setup, and city inspection scheduling. You'll get manufacturer warranty registration and our own labor warranty on top.
Why Longmont Residents Choose Us for AC System Replacement
Manual J load calculation, ductwork assessment, and equipment selection — not just a swap of the old box.
Old system refrigerant is properly recovered per EPA 608 regulations. We handle old equipment disposal responsibly.
We partner with trusted lenders for 0% intro APR options — because comfort shouldn't require draining your savings.
All permits pulled, inspections scheduled, and warranty registered on installation day in Longmont.
You'll always know who's coming, when, and what they'll do — text confirmations before and after every visit.
The price we quote is the price you pay. No scope creep, no change orders unless you approve them.
AC System Replacement Across CO
We serve Longmont and surrounding communities including Longmont, Boulder, Loveland, Berthoud, Firestone, Frederick, Erie, Lafayette. If you're in the area, we can get to you quickly. Call (719) 220-9646 for a free assessment — we'll give you an honest evaluation, not a sales pitch.
Homes in Longmont — many from the 1970s-2000s suburban growth — share common characteristics that affect repair and maintenance needs. The semi-arid continental climate creates hailstorms, which accelerates wear on specific systems. Our technicians know these patterns from years of hands-on experience in Longmont-area properties.
Trusted for AC System Replacement
Certified crews, transparent pricing, and work we stand behind.
Call (719) 220-9646Equipment Built for AC System Replacement
Our AC System Replacement Work
Real AC System Replacement Reviews from Real Customers
"The technicians were pleasant and efficient, but I wish their scheduling had been a little more precise. Still, they tackled the issue with my furnace and got it running."
Bella C.
Verified Customer
"My mom’s air conditioning broke during the heat wave last month. I reached out to ThermalPros and they not only came out quickly, but they also explained what was wrong in easy-to-understand terms. Excellent service all around!"
Maya C.
Verified Customer
"When my heater failed during a snowstorm, I was so worried. ThermalPros sent a technician right away. Fantastic service when I needed it most!"
Mona N.
Verified Customer
AC System Replacement — Frequently Asked Questions
- What warranty comes with a new system?
- Manufacturer warranties range from 5-10 years on parts. We add our own 1-year labor warranty and handle registration on installation day.
- How long does a full HVAC replacement take?
- Plan for 1-2 days depending on system complexity. If ductwork modifications are needed, add another day. We handle permits, equipment disposal, and city inspections.
- What does a full HVAC system cost?
- Residential systems typically range from $8,000-18,000 installed, depending on equipment tier, home size, and ductwork condition. We provide detailed quotes with multiple options after our in-home assessment.
- Should I replace the AC and furnace at the same time?
- If both units are over 12 years old, yes — matched systems perform better and most manufacturers require matched equipment for full warranty coverage. We'll show you the efficiency and cost benefits.
- Do you provide written estimates?
- Yes — every AC System Replacement estimate is written, itemized, and provided before any work begins. No verbal quotes, no surprise add-ons.
- How long has your company been doing AC System Replacement?
- Our team has been serving Longmont and the surrounding area for years. Experience shows in every AC System Replacement job we complete.
- How do I prepare for AC System Replacement?
- Before our AC System Replacement technicians arrive, clear access to the work area if possible and secure pets in another room. Everything else we handle. A full prep checklist is emailed with your appointment confirmation.
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Need AC System Replacement?
Our team is ready to help. Call now for a free estimate.
📞 (719) 220-9646