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Real Airmax job · 11-unit rooftop AC install
CT Licensed & Fully Insured

HVAC Contractor in Stamford, CT & Westchester County NY

Your Comfort.
Our Craft.

Heating, cooling, and air quality solutions for homes and businesses across CT & Westchester County — done right the first time.

Get a Free Estimate View Services →
CT Licensed
Fully Insured
Same-Day Available
Connecticut Green BankSmart-E financing available →
15+
YRS
EXP
Airmax
Heating & A/C · CT & Westchester County
❄️
AC Systems
Install & service
🔥
Heating
Furnace & boilers
🌬️
Air Quality
Purifiers & filters
🔧
Maintenance
Plans & tune-ups
Call Us Today
(866) 203-0469
CT Licensed & Insured
AC Installation
Heating Systems
Preventive Maintenance
Emergency Service
Indoor Air Quality
Heat Pumps
Free Estimates
CT Licensed & Insured
AC Installation
Heating Systems
Preventive Maintenance
Emergency Service
Indoor Air Quality
Heat Pumps
Free Estimates
Price estimator

What will your job cost?

Answer a few quick questions and see a typical price range for repairs, tune-ups or a new AC, heat pump, boiler, furnace, mini-split or water heater in Fairfield County and Westchester.

See my price range →Or call (866) 203-0469
  1. What you needRepair, replacement or tune-up
  2. Your equipmentAC, heat pump, boiler, furnace, mini-split, water heater
  3. How big the job isHome size or number of zones
  4. Equipment levelValue, mid-range or premium

Ranges are typical prices for similar local jobs, not a quote. Your exact price comes from a free written estimate after we see your system.

Financing available

Low-interest Smart-E financing for Connecticut homeowners

Airmax is a Smart-E contractor with the Connecticut Green Bank. Spread the cost of a new system with a Smart-E loan from a local lender, and we'll submit the project details to the Green Bank for you.

  • Heat pumps
  • Central AC
  • Ductless mini-splits
  • Boilers
  • Furnaces
  • Water heaters
See financing options →Call (866) 203-0469
Connecticut Green Bank
Smart-E applications via ngen

Smart-E loans are made by participating Smart-E lenders, not by Airmax. Available for owner-occupied 1–4 unit homes in Connecticut. Subject to lender credit approval; rates and terms are set by the lender and the Connecticut Green Bank. See current Smart-E rates.

What We Do

Complete HVAC
Solutions

From new system installations to routine tune-ups and emergency repairs — Airmax handles every aspect of your indoor climate, year-round, across Fairfield County CT and Westchester County NY.

AC compressor replacement by Airmax Heating & A/C
Air Conditioning

Central AC, mini-splits, and ductless systems installed right the first time, sized for maximum efficiency.

  • Central AC installation & replacement
  • Ductless mini-split systems
  • AC repair & diagnostics
  • Refrigerant recharge
Learn More →
Dual Peerless boilers staged for estate installation by Airmax Heating \& A/C
Heating Systems

Keep Connecticut winters from getting the best of you. Furnaces, boilers, heat pumps, and more.

  • Gas & oil furnace installation
  • Boiler service & replacement
  • Heat pump systems
  • Emergency heating repair
Learn More →
HVAC filter replacement maintenance by Airmax
Maintenance Plans

Prevent costly breakdowns with scheduled maintenance that extends equipment life and keeps efficiency high.

  • Annual tune-up plans
  • Filter replacement programs
  • Priority scheduling
  • Discounts on parts & labor
Learn More →
Attic air handler installation by Airmax Heating & A/C
Indoor Air Quality

Breathe easier. Air purifiers, humidifiers, UV systems, and duct cleaning for a healthier home.

  • Whole-home air purifiers
  • Humidifier & dehumidifier install
  • UV germicidal systems
  • Duct inspection & cleaning
Learn More →
Emergency HVAC repair by Airmax technician
Emergency Service

HVAC emergencies don't keep business hours. Rapid-response service for urgent repairs when you need us most.

  • Rapid response dispatch
  • No-heat & no-cool calls
  • Diagnostic & same-day repair
  • Transparent emergency pricing
Learn More →
11-unit rooftop AC installation by Airmax Heating & A/C
Commercial HVAC

Light commercial HVAC for offices, retail, and small businesses across Connecticut.

  • Rooftop unit installation
  • Commercial maintenance contracts
  • VRF & multi-zone systems
  • Code compliance & inspections
Learn More →
500+
Installations Completed
15+
Years Experience
4.9★
Average Customer Rating
24/7
Emergency Availability
Watch Airmax Work

See Us In Action

Real jobs. Real results. Watch our crews handle installations, boiler swapouts, and service calls across CT and Westchester County.

Mitsubishi mini split install Greenwich CT
MINI SPLIT INSTALL · GREENWICH CT
Commercial rooftop HVAC unit Rye NY
COMMERCIAL JOB · RYE NY
A Word from the Owner

Your Home Deserves
Someone Who Cares

I started Airmax because I saw too many homeowners getting rushed through jobs by crews that treated every house like the last one. Your home isn't the same as anyone else's — and the system keeping your family comfortable shouldn't be treated like it is.

When we show up, I want you to know exactly who's behind the work. Every install, every repair, every maintenance visit — there's a licensed team with a name and a number you can call. Not a dispatch center. Not a voicemail tree. A real person who stands behind what we do.

That's the whole idea behind Airmax. Not the biggest company — the one you actually trust in your home.

Alberto Sagastegui
Alberto Sagastegui
Owner & Licensed Contractor
CT License HTG.0414617-D1
CT Licensed
Fully Insured
Owner-Operated
Alberto Sagastegui on a rooftop checking refrigerant gauges
“
I don't send anyone into a home I wouldn't send into my own. That's not a slogan — it's how we hire, how we train, and how we show up every day.
Why Airmax Heating & A/C

Built on Trust,
Driven by Results

01
Licensed & Insured in Connecticut

We carry full CT HVAC contractor licensing and comprehensive liability insurance — protecting you, your property, and our team on every job.

02
Upfront, Transparent Pricing

No surprises. We provide detailed written estimates before any work begins and stick to them. The price we quote is the price you pay.

03
Clean, Punctual & Respectful

Our technicians arrive on time, wear clean uniforms, protect your home during work, and leave every job site cleaner than they found it.

04
Local Connecticut Experts

We know Connecticut's climate — the brutal winters, the humid summers. We size and specify systems built for this specific environment.

EPA
608 Universal Certified
Certified to handle refrigerant on every type of system.
$0
Estimate Cost
Free, no-pressure estimates on all installs.
100%
Satisfaction Guarantee
We stand behind every job. If you're not satisfied, we make it right — no questions asked.
CT
LICENSED
Customer Reviews

What CT & Westchester Homeowners Say

"

Alberto and his crew are top notch. After a previously poor experience with a local HVAC contractor who didn't install my Mitsubishi mini split correctly, I learned that NY State doesn't require HVAC technicians be licensed. Airmax is fully licensed and insured out of CT. From now on, I only choose licensed HVAC technicians for my home.

★★★★★
NS
Noam S.
Verified Google review, Sept 2026
Coverage

Serving CT &
Westchester County

Airmax Heating & A/C serves homes and businesses throughout Fairfield County CT, Westchester County NY, and the Bronx. Based in Stamford — your neighbors for 15+ years.

Stamford Greenwich Darien New Canaan Norwalk Westport Port Chester Rye Mamaroneck Larchmont New Rochelle White Plains Harrison Scarsdale Bronx + More
AIRMAX SERVICE AREA CT & WESTCHESTER
Ready to Get Started?

Get Your Free
Estimate Today

No pressure. No hidden fees. Honest HVAC advice from a licensed contractor serving CT and Westchester County since 2009. Written quote, same-day estimates available.

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(866) 203-0469
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