Compare top-rated hvac providers in Glenwood. Profiles include verified reviews, service details, and direct contact options.
From $50
Up to $500
Open 24 hours
In the heart of Glenwood, we are ASC HVAC - your dedicated specialists in all things heating and cooling. For years, we've been delivering excepti…
These companies are based in nearby cities and serve Glenwood.
From $50
Up to $500
Closed until Tue, 7:00 AM
In West Friendship, we're Joytech HVAC - your dependable partner for all things related to heating, ventilation, and air conditioning. We understa…
From $50
Up to $500
Closed until Tue, 7:00 AM
In Dayton, we are Shamrock HVAC Services - your reliable partner for all things heating and cooling. Homeowners know that a faulty air conditioner…
From $50
Up to $500
Closed until Tue, 8:00 AM
At Ron Air Heating & Air Conditioning in Dayton, we deliver reliable HVAC solutions to homeowners. As a leading HVAC services provider, we special…
From $50
Up to $500
Closed until Tue, 8:00 AM
At ADI Heating & Air Conditioning LLC in Gaithersburg, we specialize in HVAC services that ensure your home's comfort and energy efficiency. Our t…
From $50
Up to $500
Closed until Tue, 8:00 AM
In Ellicott City homes, we understand the frustrations that come with a malfunctioning HVAC system or plumbing issues. At Beltway Air Conditioning…
From $50
Up to $500
Closed until Tue, 8:00 AM
In Ellicott City, we are Martin & Son Heating and AC, a reliable HVAC specialist committed to maintaining your home's comfort. Our HVAC expertise …
From $50
Up to $500
Closed until Tue, 9:00 AM
In homes across Ellicott City, a relentless summer heat wave can leave families feeling uncomfortable. At Maryland Plumbing, Heating & Cooling Con…
From $50
Up to $500
Closed until Tue, 8:30 AM
At American Testing Inc in Ellicott City, we specialize in HVAC services, providing you with reliable solutions for your home comfort needs. Our t…
From $50
Up to $500
Closed until Tue, 8:00 AM
In Columbia's HVAC landscape, Heliborne Heating & Cooling LLC stands out as a dependable partner for homeowners seeking comfort and energy efficie…
From $50
Up to $500
Closed until Tue, 8:00 AM
In homes across Sykesville, a chilly draft or an unexpected system failure can quickly disrupt comfort. That's where we come in – Comfort Inc, you…
Spotted an error? Let us know
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 Glenwood 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 Glenwood 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 Glenwood. 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.
This is a great company very honest people and trustworthy.
I’ve used ASC a total of three times now. One of which was a total system replacement. Quality service, great prices, and good people.
Mark has been wonderful and I recommend him to all my family and friends. Very reliable and we have been using him for over 30 years.
Excellent service. Called them after hours and they came the following morning (Saturday) to look at our unit. Wonderful people and truly customer service. Highly recommend!
Extremely unprofessional and unreliable. Don't waste your time/money with these guys. They set an appointment for a Friday afternoon and didn't call when they missed the scheduled time, so I call them to check on the status. They said they were running a little late, but would be there. A half hour later, I called back to see where they were and was told it would be at least another hour, maybe more. I said that I couldn't keep waiting that long because I had a conflicting appointment...They said they could come on Saturday, but I'd have to pay the emergency service fee. I told them that I'd prefer to just reschedule for Monday. On Monday, they did not show up at the scheduled time and did not call, so I called them repeatedly until I got through (30 minutes later...). I asked where they were and they said they were 10 minutes away. 30 minutes later I called back because they still had not arrived and the driver/service guy (Mark) said he was 10 minutes away...I said that that was what he had told me 30 minutes ago and that I needed an honest answer because I am missing work for this...He said he didn't need my attitude and wasn't coming, then hung up...I was speechless. This clearly isn't a serious business and frankly I'm glad he never came because who knows how much damage he would have done working on my HVAC system.
Woke up on a Sunday morning and furnace was not working. Service call guy explains control card and igniter needs to be replaced on 23 yr old unit. We go with furnace replacement. Of course that service provider was hoping for a spot (pressured) decision that was $2500 more than we paid). Do your homework folks! Frantically start calling around and touch base with friend of the family that recommends ASC. Called Mark (owner) and he came over first thing Monday morning. I also got three other estimates. Mark was most straight up, straight forward, did not over sell, kept it simple, convinced us to do AC at same time and save $1500 from doing it later when it craps out (also 23 yrs old). We had a few decisions to make – he kept them easy and again didn’t over-sell performance/savings when other providers obviously did. ASC provided lowest price. The install was the next day, seamless, did some extra vent work (no charge) to align furnace in better space in furnace room. Call Mark – get a quote – top shelf.
Write a review
Sign up
