Complete System Replacement
Matched high-efficiency AC and furnace systems, sized with a full Manual J load calculation — not a guess off the old unit's label.
Same-day appointments open today
NATE-certified installers handling full system replacements, heat pump conversions and ductless retrofits across the metro — with financing from $89/mo and a 10-year parts and labor warranty.
✓ No-charge second opinions✓ Licensed & insured✓ 0% APR for 18 months
What we install & service
We’re not a jack-of-all-trades shop. These are the projects our crews run every single day — and the ones that actually lower your energy bill.
Matched high-efficiency AC and furnace systems, sized with a full Manual J load calculation — not a guess off the old unit's label.
Room-by-room control for additions, garages, sunrooms and older homes with no ductwork. Whisper-quiet at 19 dB.
Swap aging gas or electric heat for a cold-climate heat pump and capture up to $8,000 in federal and utility rebates.
The average home leaks 28% of its conditioned air. We pressure-test, re-route and Aeroseal so you actually get what you paid for.
Restaurants, retail and light industrial. Scheduled PM contracts, crane-set replacements and after-hours install windows.
Whole-home HEPA, UV purification, steam humidifiers and fresh-air ventilators. Built for allergy and asthma households.

Who you’re letting in the door
Dad started Northwind out of a single Ford Econoline in 2002 with one rule: tell people the truth, even when the truth is “you don’t need a new system yet.” Two decades later we’re 31 technicians strong and that rule hasn’t moved.
Every tech on our payroll is NATE-certified, background-checked and drug-tested. We don’t use subcontractors, we don’t pay commission on parts, and we don’t leave until your home holds temperature within one degree of setpoint.
— Marcus ReyesOwner & Master Mechanical Contractor, Lic. #MC-40219
Why homeowners pick us
Nobody enjoys buying a furnace. We’ve spent 24 years removing every reason to dread it.
You see the full number on a tablet before work begins. No hourly meter, no “while we were in there” surprises on the invoice.
Most contractors match whatever's already there. We measure your actual envelope — 4 out of 10 homes we quote are running an oversized system.
Manufacturer warranties cover parts. Ours covers the truck roll, the diagnostic and the wrench time too. Transferable if you sell.
Federal 25C credits, utility incentives, manufacturer promos. Our office files them for you — last year that averaged $2,340 back per customer.
Free, no-pressure estimate
Run our AI estimator for an instant ballpark, then book a real technician to confirm it on site — free, and with zero obligation.
⚡ AI Estimator
Answer three questions. Our model prices against 4,800 installs we’ve completed in this market.
Straight from Google
Questions we get every week
For a typical 1,800–2,200 ft² home in this market, a matched AC and furnace runs $8,200–$12,400 installed, and a cold-climate heat pump runs $11,000–$17,500 before rebates. The spread comes down to efficiency tier, whether your ductwork needs modification, and electrical service. Our AI estimator above gets you within about 10% in 30 seconds.
Our rule of thumb: if the repair costs more than $500 and the system is over 12 years old, replacement usually wins on total cost of ownership. If it still uses R-22 refrigerant, replacement almost always wins — R-22 is no longer produced and now costs more per pound than the repair itself. We'll tell you honestly which side of that line you're on.
Standard appointments are typically next-day. No-heat and no-cool emergencies are dispatched same-day, 24/7, and we hold open slots specifically for them. You'll get a text with your technician's name, photo and live ETA — no four-hour windows.
Yes — 0% APR for 18 months on approved credit, or extended terms starting around $89/month. The application takes about 60 seconds on the technician's tablet and it's a soft pull to pre-qualify, so checking your rate won't affect your credit score.
The federal 25C credit covers 30% of qualifying heat pump costs up to $2,000, plus up to $600 for qualifying AC or furnace equipment. Local utility rebates typically add $500–$1,500, and manufacturer promos run seasonally. Our office files all of it on your behalf — last year customers averaged $2,340 back.
At $19/month it includes two precision tune-ups a year, priority dispatch, 15% off any repair, and no overtime charges ever. More importantly, it keeps your manufacturer warranty valid — most manufacturers void coverage without documented annual service, and that's the clause that bites people at year seven.
Let’s get you comfortable
Tell us what’s going on and we’ll text you a confirmed appointment window within the hour. Most estimates take 45 minutes.