Compare top-rated hvac providers in Alton. Profiles include verified reviews, service details, and direct contact options.
From $50
Up to $500
Open 24/7
At Key Heating & Air Conditioning in Alton, we take pride in delivering exceptional HVAC services, specializing as both heating and air conditioni…
From $50
Up to $500
Open 8:00 AM – 5:00 PM
At Service Network Inc. in Alton, we specialize in HVAC services, making homes comfortable all year round. Whether it's a furnace repair or a gas …
These companies are based in nearby cities and serve Alton.
From $50
Up to $500
Open 8:00 AM – 4:00 PM
At Vachon's Heating & Air Conditioning LLC in Farmington, we specialize in HVAC services, transforming your home comfort with our expertise. From …
From $50
Up to $500
Closed until Wed, 9:00 AM
In the heart of Farmington, we are Joy's HVAC - your dependable partner in all things heating and cooling. With a strong focus on homeowners like …
From $50
Up to $500
Open 24/7
In the heart of Belmont, we are Oil Tank Services Of N.E., specialists in HVAC services. Our team is dedicated to delivering exceptional HVAC solu…
From $50
Up to $500
Open 24 hours
In Northwood, we are Berger HVAC, LLC - your reliable partner for all things heating and cooling. We specialize in HVAC contracting, air condition…
From $50
Up to $500
Open 7:00 AM – 5:00 PM
In homes across Rochester, a chilly winter night or a sweltering summer day can turn uncomfortable quickly. At Tremblay & Son HVAC, we're here to …
From $50
Up to $500
Open 8:00 AM – 5:00 PM
At Laconia Residential in Gilford, we're HVAC specialists dedicated to providing exceptional services for your home comfort. Our expertise lies in…
From $50
Up to $500
Open 24/7
At Gunstock HVAC in Gilford, we deliver reliable and efficient heating and cooling solutions for your home. As a dedicated HVAC contractor, we spe…
From $50
Up to $500
Open 24/7
At CRS Mechanical LLC in Epsom, we specialize in HVAC services, offering expert solutions for your home's comfort needs. Our team is dedicated to …
From $50
Up to $500
Open 8:30 AM – 4:30 PM
In the heart of Epsom, we are Custom Climates HVAC - your dedicated partners in home comfort. With a focus on HVAC services, our team is committed…
From $50
Up to $500
Open 7:00 AM – 4:00 PM
In homes across Loudon, we understand the constant struggle with maintaining a comfortable and energy-efficient indoor climate. That's why we are …
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We show only active businesses that pass moderation. Results are specific to Alton 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 Alton 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 Alton. Listings are refreshed regularly — October 2026.
The same listings in the closest cities — providers there often take jobs in Alton too. Mileage is the approximate distance from Alton.
Looking for hvac in Alton? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.
Every company in the GigoPro directory started the same way: a free listing. The difference between a profile that sits quietly and one that wins jobs isn't luck — it's a system. …
Read moreA dead water heater, a flickering light, a leaking dishwasher, a roof that needs replacing — every home eventually needs a professional, and the person you choose decides the pric…
Read more"How much does AC repair cost?" is the most-asked question in home comfort — and the honest answer is genuinely complicated. The price of a repair depends on the type of system, t…
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Matt resolved the issue with the air handler that was installed last year. (Loose wires evidently). He also diagnosed the problem we were having with an AC condenser unit (failed motor).
Knowledgeable and helpful with understanding my HVAC options to replace my existing system. Price is competitive.
Matt has worked on our HVAC several times and always does a great job
Matthew did a fine job . I observed that he new how to perform the task and answered my questions.
Will not hire again. They left a new install incomplete, wires not connected, thermostats not working, no full system startup to be sure things were working properly, and would not respond to me when i reached out about it. The entire experience was chaotic, completely unprofessional, disorganized, and careless. I had to hire a different company to come in and not only fix things, but COMPLETE THE JOB. Update: NOT only did I email you about the issues, you simply did not respond. I did speak with the town inspector and even though you checked all his boxes, his job isn't to make sure things like thermostats work properly, or are hooked up properly, or that a full system start up was done. Are you telling me you had no idea there was never a full system start up? The outdoor condenser unit wouldn't even start up. I did however ask the inspector about his experiences with you and said he sights you guys on this a lot. Makes sense, since you FAILED your first inspection and he had to come back out. " had we known".....that's cute. Update #2 : It was discovered that the reason the system wouldn't work properly is because they didn't install needed components, and used parts that were not compatible with each other. Parts that they charged for were never delivered, never mind installed. This company is literally organized crime. You'll be lucky we don't sue you. Update#3 : It was discovered by another company that nothing was wired correctly and they used parts that were not compatible.
Brandan was great. He was quick to diagnose the issue and very thorough explaining what needed to be done. Would highly recommend this company and Brandan.
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