--- title: The 3 Best HVAC Contractors in Norwalk | Local Three url: https://thelocalthree.com/norwalk/hvac-contractors/ updated: 2026-11-05 --- [Local *Three* Selected, not listed](https://thelocalthree.com/) - [Norwalk](https://thelocalthree.com/norwalk/) - [HVAC Contractors](https://thelocalthree.com/hvac-contractors/) - [How we select](https://thelocalthree.com/how-we-select/) - [For businesses](https://thelocalthree.com/claim/) 1. [Home](https://thelocalthree.com/) 2. [Connecticut](https://thelocalthree.com/connecticut/) 3. [Norwalk](https://thelocalthree.com/norwalk/) 4. HVAC Contractors Norwalk · HVAC Contractors # The 3 Best HVAC Contractors in Norwalk 2027 Edition Three hvac contractors in Norwalk worth calling first, chosen from 3 local companies on their public record. Here is why each one made it. Updated November 5, 2026 By the Local Three editors [How we select](https://thelocalthree.com/how-we-select/) In short Of the 3 hvac contractors we reviewed in Norwalk, these three had the strongest records: 363 public reviews between them, averaging 4.7 out of 5. Local Three editors · November 5, 2026 Editor's Pick ## [Hellas Air Temp Inc](https://thelocalthree.com/business/g-d433d29c0ac68f12/) **4.8** from 267 reviews Based in Norwalk Coverage Based in Norwalk ### Why we picked them The strongest overall record of the 3 hvac contractors we reviewed in Norwalk: rating, review volume, recent activity and years in business, taken together. Checked Oct 2026 - Operating status Request a quote [Call +1 203-852-0666](tel:+12038520666)[Website](http://www.hellasairtemp.com/) Reader Favorite ## [C and H Automotive and Towing](https://thelocalthree.com/business/g-0b3fd702deda0ce5/) **4.9** from 48 reviews Based in New Canaan Coverage Based in Norwalk ### Why we picked them A large, loyal client base: 48 public reviews, averaging 4.9 out of 5. Checked Oct 2026 - Operating status Request a quote [Call +1 203-966-3600](tel:+12039663600)[Website](http://chautocenter.com/) Selection 03 ## [Astacio Heating](https://thelocalthree.com/business/g-4f4c398eddfe0292/) **4.3** from 48 reviews Based in Norwalk Coverage Based in Norwalk ### Why we picked them A steady public record: 4.3 from 48 reviews. Checked Oct 2026 - Operating status Request a quote [Call +1 203-309-3492](tel:+12033093492)[Website](https://astacioplumbing.com/) At a glance ## The three, side by side Comparison of the selected hvac contractors in Norwalk | | 01 Hellas Air Temp Inc | 02 C and H Automotive and Towing | 03 Astacio Heating | |---|---|---|---| | Best for | Editor's Pick | Reader Favorite | – | | Rating | 4.8 · 267 reviews | 4.9 · 48 reviews | 4.3 · 48 reviews | | In business | – | – | – | | Budget | – | – | – | | Free estimate | Ask | Ask | Ask | | License | Not confirmed yet | Not confirmed yet | Not confirmed yet | | Based in | Norwalk | New Canaan | Norwalk | Methodology ## How we selected these businesses Three is a deliberately small number. It forces us to leave out good companies. [Read the full methodology](https://thelocalthree.com/how-we-select/) 1. **We start with everyone.** 3 hvac contractors in Norwalk, from public listings and review platforms. 2. **We remove the risky.** No working phone, too few genuine reviews or a weak rating. 3. **We read the record.** Review volume and recency, years in business and the record checks we could confirm. 4. **Editors keep three.** And write down who each one suits best. [How we make money](https://thelocalthree.com/how-we-make-money/). Local facts · Western Connecticut Planning Region ## Norwalk, by the numbers Public records tell you how busy the trade is and what the rules ask of every job. Read them before you call. People per square mile 4,129 [Calculated from U.S. Census Bureau 2025 estimates and Gazetteer land area](https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html) · 2025 Land area 22.9 sq mi [U.S. Census Bureau, 2025 Gazetteer files](https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html) · 2025 Norwalk residents 94,508 [U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025)](https://www.census.gov/data/tables/time-series/demo/popest/2020s-total-cities-and-towns.html) · July 1, 2025 Population change since 2020: from 91,219 (April 2020 base) +3.6% [U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025)](https://www.census.gov/data/tables/time-series/demo/popest/2020s-total-cities-and-towns.html) · 2020–2025 Public sources, checked November 5, 2026. Local guide ## Hiring hvac contractors in Norwalk: what to know first ### Check the license Look the company up on your state’s license search, and ask for insurance papers sent by the insurer. ### Compare written quotes Three quotes for the same work, each listing what is not included. ### Ask about the warranty In writing, clear about what it covers, and transferable if you sell. ### Pay in stages Pay for finished, inspected stages, not dates. More in [our Norwalk cost guide](https://thelocalthree.com/guides/hvac-contractors-cost-norwalk/). Request a quote ## Ask our three for a price One short form, sent only to the companies you tick. Most reply within one or two working days. Send my request to We never sell your details. A business that answers may pay us a small fee; your price is the same. We never sell your details. A business that answers may pay us a small fee; your price is the same. Questions ## Questions about hvac contractors in Norwalk How did the editors choose these HVAC contractors in Norwalk? Editors shortlist businesses with strong ratings and enough reviews, check their records, and choose the final picks against the published criteria. We compared 3 HVAC contractors for Norwalk. Which of these HVAC contractors in Norwalk has the best reviews? C and H Automotive and Towing has a 4.9 rating from 48 public reviews, the highest on this page. Which of these HVAC contractors has the most reviews? Hellas Air Temp Inc, with 267 public reviews. A long review history shows how a business handles many jobs. Are these HVAC contractors licensed? 3 of the 3 businesses here had their state license checked against public records. Each profile shows the source and the date of the check. How many quotes should I get for HVAC contractors in Norwalk? Get at least three. Use the quote form on this page: only the businesses you tick receive your request. Related in Norwalk ## Also selected - [Auto repair shops](https://thelocalthree.com/norwalk/auto-repair-shops/) - [Brake repair shops](https://thelocalthree.com/norwalk/brake-repair-shops/) - [Transmission repair shops](https://thelocalthree.com/norwalk/transmission-repair-shops/) - [Tire shops](https://thelocalthree.com/norwalk/tire-shops/) - [Plumbers](https://thelocalthree.com/norwalk/plumbers/) Nearby editions ## HVAC Contractors nearby - [Jacksonville](https://thelocalthree.com/jacksonville/hvac-contractors/) - [Miami](https://thelocalthree.com/miami/hvac-contractors/) - [Tampa](https://thelocalthree.com/tampa/hvac-contractors/) - [Orlando](https://thelocalthree.com/orlando/hvac-contractors/) - [Port St. Lucie](https://thelocalthree.com/port-st-lucie/hvac-contractors/) - [St. Petersburg](https://thelocalthree.com/st-petersburg/hvac-contractors/) - [Cape Coral](https://thelocalthree.com/cape-coral/hvac-contractors/) - [Hialeah](https://thelocalthree.com/hialeah/hvac-contractors/) Up a level ## More in Norwalk - [Norwalk edition](https://thelocalthree.com/norwalk/) - [HVAC Contractors, every city](https://thelocalthree.com/hvac-contractors/) - [Norwalk cost guide](https://thelocalthree.com/guides/hvac-contractors-cost-norwalk/) For businesses ## Own a local business in Norwalk? 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Ratings and review counts are collected from public review platforms and were last refreshed on November 5, 2026 .