Carbon Heating & Air Conditioning
From $50
Up to $500
Open 24/7
In Knightsville's thriving community, we, Carbon Heating & Air Conditioning, are proud to serve as your trusted HVAC specialists. With a focus on …
Compare top-rated hvac providers in Knightsville. Profiles include verified reviews, service details, and direct contact options.
From $50
Up to $500
Open 24/7
In Knightsville's thriving community, we, Carbon Heating & Air Conditioning, are proud to serve as your trusted HVAC specialists. With a focus on …
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Hiring an HVAC professional is a decision about your budget, your comfort, and sometimes your safety — so it deserves more than an impulse phone call. This is the short version of how we'd approach it, and the exact criteria embedded in every GigoPro profile.
Ratings tell you the average; recent reviews tell you the truth about right now. Read the last handful of reviews for a company, not just the stars. A contractor who fixes the reported problem, explains what was done, and leaves the site clean is the one you can trust with a multi-thousand-dollar decision.
Confirm the company actually performs your specific job — a residential AC repair shop is not automatically a commercial rooftop specialist, and vice versa. Check that your address is inside its service area, and look for stated response times if your situation is urgent.
Reputable pros will inspect, then give a written, itemized estimate — clearly stating labor, parts, and any permit costs. Price differences between honest quotes reflect equipment brands, warranty terms, and installation quality, so never choose on the bottom line alone. Ask what each quote includes and what it excludes.
Licensing and insurance requirements differ from state to state and shift over time. In regulated jurisdictions, ask for the company's license number and proof of insurance before work begins — never after. Professional companies expect these questions and answer them without hesitation.

Whether your air conditioner stopped on the hottest day of the year, your furnace is cycling on and off in January, or you are planning a full system replacement for your home or business — this page is your starting point. GigoPro's hub gathers verified heating, ventilation, and air conditioning contractors from cities across the United States in one place, so you can stop calling around and start comparing on facts.
Every company you find here lists what it actually does: air conditioning repair and installation, furnaces and heat pumps, ductwork and ventilation, indoor air quality, commercial HVAC maintenance, and emergency call-outs. Each profile shows the services offered, the area the company serves, recent customer reviews with ratings, and contact details — so you can shortlist three or four pros, request written estimates, and book the one that fits you best.
Quality on Gigo is not self-declared. Before any business appears in search results, we moderate the profile: we verify that the company is real, actively operating, and actually operates in the category it claims; for regulated trades, we verify proper credentials. Listings that stop being active are hidden automatically. That is what "verified near you" should mean, and it is why tens of thousands of homeowners 100 000 start their search here every month.
Pick your city below to see local providers, ratings, and current availability — or read on to learn about the services, get a simple contractor-hiring checklist, and find out what to expect before you book.
The contractors in this directory cover every part of that equation, from a quick fix to a full replacement. Here is what each type of service involves, and when you are likely to need it.
Central AC repair covers everything from a tripped breaker and a refrigerant leak to a failing compressor or a blower motor that needs replacing. If your system is older than 12–15 years [verify & localize], or repairs keep adding up, a new installation — including ducted central systems and ductless mini-splits — can be the smarter long-term call. Companies listed here service AC units of every age and brand, so a technician visit starts with a proper diagnosis, not a sales pitch.
Furnaces, boilers, and space heaters keep your home livable through winter. Typical jobs: no-heat emergencies, noisy operation, pilot and ignition problems, carbon-monoxide safety checks, and full furnace replacement. Annual pre-winter maintenance is the cheapest insurance you can buy against a breakdown in freezing weather. If your heat stops working, prioritize companies that list emergency or same-day response in their profile.
Heat pumps heat and cool from the same efficient unit — air-source systems are the most common, with ground-source (geothermal) options for larger projects. Contractors in this category install, repair, and replace heat pumps, size them correctly for your home, and handle the ductwork modifications that a switch from a furnace often requires. If you are replacing an aging system, a heat pump conversion is worth having with two or three licensed pros before you decide.
Your ducts carry every degree of comfort to every room. Duct cleaning removes dust and debris that builds up over years; duct sealing stops the leaks that let conditioned air escape into attics and crawl spaces; and duct repair or replacement fixes crushed, disconnected, or rodent-damaged runs. If rooms in your house never quite reach the set temperature, airflow problems are often the culprit — worth checking before you blame the system itself.
Modern HVAC work goes beyond temperature. Air purifiers, whole-home filtration, humidifiers and dehumidifiers, ventilation and fresh-air systems, and UV treatments all change what you breathe. Companies offering indoor air quality services can test and improve air in homes with allergies, asthma, new paint or renovation dust, or simply poor circulation.
Offices, restaurants, retail spaces, and apartment buildings have very different needs than homes — rooftop units, package systems, and scheduled maintenance contracts that keep tenants comfortable and equipment warranties valid. The directory includes commercial HVAC contractors who can respond quickly when a business space loses heat or cooling, and who will quote preventative maintenance to avoid the midnight call-out later.
A spring tune-up before cooling season and a fall check-up before heating season catch small problems while they are still cheap to fix. Maintenance typically covers filter replacement, cleaning coils and burners, checking refrigerant charge, testing safety controls, and confirming airflow. Many companies publish maintenance plans in their profiles — compare what is included (and what an emergency visit costs) before you commit.
Systems break on weekends and holidays. Emergency-ready contractors keep after-hours teams for exactly the no-heat, no-cool, or gas-odor situations that can't wait until Monday. Check a company's profile for stated emergency availability and response policy before needing it — that is far easier than cold-calling on a Christmas morning.

GigoPro lists providers in 10171 cities across all 50 states. Each city page shows local air conditioning, heating, and ventilation companies with their ratings, recent reviews, service areas, and contact details — so you see exactly who operates near you before you call. Listings are moderated at signup and reviewed continuously; businesses that stop operating are removed, and new cities are added regularly.
We show only active businesses that pass moderation. Results are specific to Knightsville and nearby service areas, and inactive profiles are removed to keep the list current.
Ratings and reviews come from customers who used the service. Compare hvac pros in Knightsville by experience, responsiveness, and value before you reach out.
Filter by neighborhood, check locations on the map, and find providers close to home or work in Knightsville. Listings are refreshed regularly — August 2026.
Find verified hvac providers in cities across the United States. Each city page lists active businesses with reviews, contact details, and current offers. Showing the most active cities — type a city name in the filter to jump elsewhere.
Yes. Browsing businesses, reading reviews, and comparing providers is free for everyone. Business owners can create a basic listing at no cost.
Every profile goes through moderation before it appears in search. We check that the business is real, active, and matches the category it claims. Inactive listings are hidden automatically.
Start with ratings and recent reviews, then compare services offered, location, and response time. Contact two or three providers to get quotes before making a decision.
Yes. Create a free business profile to reach local customers searching for your category. You can update services, photos, and contact details anytime.
Business owners update their own profiles. Our team also refreshes hub pages and removes inactive listings so search results stay current.
Your employees on lunch break today in their work truck in line at McDonalds gave a couple of senior folks passing through Brazil from Ohio a surprise when we found out Carbon Heating and Air paid our tab ahead of us. First class act, lads! Well done, indeed. Very much appreciated from a PAIR of 35 years each of military service. Should any of my family/friends in this area are of need of your services, I will be sure to trust a company with those unselfish acts of kindness. God bless you and yours, Rick Howard Fairborn, O.
Defintely recommend Carbon Heating and Air. Doug and his crew are friendly and honest. They installed a new HVAC system for us at a reasonable price and in a timely manner.
Got a new furnace today. Bryan Sean and Joe were GREAT! They did a FANTASTIC JOB installing the furnace! Me and my wife highly recommend them!
Very knowledgeable, always arrives on time, and quick responses in all situations. Very nice and polite. I highly recommend ,Nathan
They were here within a very short time after I called. Within 30 minutes they had things taken care of. My furnace was good to go. Very very happy with them.
My electric furnace wasn't working correctly so I called them. They came out within an hour and looked at it. When he left, he said he would email me an estimate. I got the estimate for over $900 for replacement parts but they wouldn't tell me when it would be in. I called the office twice over two days and no one would give me a timeframe of when it would get fixed. The weather was forecast to be in the teens to low twenties and I needed to make plans so I wouldn't have a cold house, but they never got back with me on a timeframe. I got tired of waiting so I called another local heating company, and they came out and fixed it in about an hour and only charged me $140! $900 is a big difference from $140. I should have called the second company the first time.