24/7 Service ·
(903) 891-9154
Alpine Air Conditioning & Heating
Sherman, Texas · est. 1999

Sherman HVAC,
since 1999.

HVAC for North Texas since 1999 — 24-hour service across Sherman, Grayson, and Collin counties. Twenty-seven years of keeping homes cool in July and warm in January.

(903) 891-9154
Currently dispatching
We're open
right now.
Hours 24 / 7 · including holidays
Coverage Grayson + Collin counties
Lic. TACLA19609C
Call (903) 891-9154 →
27
Years in Business
24/7
Emergency Service
4brands
Carrier · Trane · Goodman · Comfortmaker
TACLA·19609C
Texas Licensed Contractor
Financing available — ask us 10-year parts + labor on installs TACLA · 19609C
— Services

Four things, done properly.

We've kept the offering tight on purpose. Twenty-seven years of installs, repairs, and call-backs taught us where the value really lives — and we don't sell what we wouldn't put in our own house.

01 / 04

Air conditioning — repair & install

Diagnostics, refrigerant, compressors, full system replacements. Carrier, Trane, Goodman, Comfortmaker — installed by people who'll still answer the phone next August.

See AC services →
02 / 04

Heating — furnaces & heat pumps

Gas furnaces, electric heat, heat pumps. We service what we install and we install what we'd trust through a Texas cold snap. Same-day diagnostic on most calls.

See heating services →
03 / 04

Maintenance — twice-yearly tune-ups

A small commitment that pays back in equipment life and quiet utility bills. Spring for cooling, fall for heating — we put you on the calendar so you don't have to think about it.

See maintenance plans →
04 / 04

Indoor air quality — filtration & humidity

Whole-home filtration, UV, humidifiers, duct cleaning. North Texas allergens are real — your air doesn't have to be the source of them.

See air quality services →
— Quick help

What brought you here?

Tell us in your own words. Pick what's closest to your situation and we'll point you to the right page.

Don't see your situation?

— Since 1999

We've been the call North Texas makes when the system stops.

Alpine has been working out of Sherman since 1999 — back when McKinney was a small town, Frisco was farmland, and we still drove the same routes on the same back highways we drive today.

Twenty-seven years of installs and 2 a.m. emergency calls have taught us a few things. Equipment fails on the hottest day of the year. Honest diagnostics save more money than discount specials. And the best HVAC contractor is the one who shows up when they say they will, fixes it right the first time, and leaves the house tidier than they found it.

Grayson and Collin summers regularly push past 96°F by mid-July, and the spring pollen here is famously rough on coils and filters. We size systems for the actual load — not the rated spec — and we clean what your last contractor probably skipped. The right system for North Texas is a slightly different system than the right one for, say, Colorado. We've sized for both.

"We service what we install and we install what we'd trust through a Texas cold snap."

'99
Founded
9+
N. Texas Cities
24/7
Dispatch
— The brands we trust

Factory-trained on the equipment we install. We service most other major brands too.

Carrier
Trane
Goodman
Comfortmaker
— Warranty

Every Alpine install carries a 10-year parts + labor warranty, in writing. Same paperwork we'd want on our own equipment.

— Service Area

North Texas, covered.

We're based in Sherman and we run service routes throughout Grayson and Collin counties. Sherman, Denison, and Pottsboro in Grayson; Anna, Melissa, McKinney, Frisco, Prosper, and Celina in Collin — each has a dedicated page. If your city isn't listed, give us a call.

(903) 891-9154
— ZIP Check

Wondering if we cover you? Type your ZIP.

We're based in Sherman and we cover Grayson, Collin, and most of North Texas. Drop your ZIP — we'll give you an honest read, and we still love to hear from neighbors a little further out.

— Featured cities See full service area →
Sherman
Denison
Pottsboro
Anna
Melissa
McKinney
Frisco
Prosper
Celina

Also serving Van Alstyne, Howe, Whitewright, Tioga, Allen, and the broader Grayson + Collin region. If your city isn't listed, give us a call.

— Maintenance plan

The system you forget about is the one that lasts.

Two visits a year — spring tune-up before the heat, fall check before the cold. We catch the small things that turn into emergencies, and we put you on the calendar so you don't have to remember.

  • — Two precision tune-ups per year
  • — Priority scheduling on emergency calls
  • — 15% off any repair, no fine print
  • — Equipment-life tracking, in writing
  • — Local Sherman crew, since 1999
  • — 15% off major install for military, first-responders, seniors, teachers
Plan details →
— Financing

Financing, kept simple.

Replacing a system shouldn't mean draining the savings account. We work with a lending partner so you can spread the cost across the years you'll be running the equipment. Ask us for current terms — we'll walk through what you'd actually pay.

Current specials →
— What to expect
  • 01 Quick application. Soft-pull pre-qualification at the kitchen table — no surprise hits to your credit.
  • 02 Decision in minutes. Most folks get an answer before we leave the driveway.
  • 03 No hidden fees. What we quote is what you pay. We'll show you the math.

Financing offered through a third-party lender. Terms subject to credit approval. Ask us for current rates and qualifying-system details.

— Repair or replace?

Three questions. Honest answer.

We don't sell what we wouldn't put in our own house. Plug in what you know — system age, what the last repair ran, what tonnage you've got — and we'll tell you which way it leans.

This is a conversation-starter, not a quote. Ranges are typical North-Texas installs in 2026 dollars.

Look on the outdoor unit's nameplate, or check your last service paperwork. We can figure it out for you.

Fill in the three boxes — we'll compute live.
— Reviews

We're collecting the first ones now.

New website, same crew since 1999. If we've worked on your system, we'd be grateful for a Google review — it's the fastest way for the next neighbor to find us.

Leave a Google review (903) 891-9154
— Frequently asked

Questions, answered straight.

Are you available 24/7 for emergencies?

Yes. One number — (903) 891-9154 — answered around the clock. Nights, weekends, holidays. North Texas summers and winters don't keep business hours, so neither do we.

Do you offer financing?

Yes — we offer financing on system replacements and major repairs. We'll walk through the options when we give you the quote, no pressure.

Which brands do you install and service?

Carrier, Trane, Goodman, and Comfortmaker — primarily. We service most other major brands as well; if you're not sure, give us a call.

What's your service area?

Sherman and the broader Grayson + Collin counties — including Anna, Melissa, McKinney, Frisco, Prosper, and Celina. If you're nearby and not on that list, call us anyway.

Are you licensed and insured?

Texas Air Conditioning Contractor License TACLA19609C, fully insured. We carry it because we mean it — and Texas law requires it on every HVAC ad and proposal.

How do quotes work?

In writing, fixed, and we honor them. We diagnose first, explain what we see, and quote the fix. No surprise add-ons after the truck shows up.

— Schedule service

Tell us what's going on.

We'll get back to you the same day with a window and an honest first read on what we're hearing.

Call us · 24/7
(903) 891-9154
Visit · Sherman, TX
309 N Willow St, Sherman, TX 75090

Or call (903) 891-9154 — answered 24/7.