Don't sweat through another night or pile on another blanket. Boulder HVAC delivers fast, dependable HVAC repair and replacement for local families, backed by upfront pricing and real results.
A broken AC or furnace doesn't wait, and neither should your service company. With technicians based around the Boulder area, we provide fast, reliable service and hands-on care from experienced pros who know the climate and housing stock of our region.
Whatever your system needs, a quick fix, a smart upgrade, or a full replacement, our team covers it start to finish with workmanship that lasts.
High-efficiency furnaces sized for your home and vented correctly.
Efficient AC systems, correctly sized and installed to last.
No heat tonight? We find the failed part and get the furnace running.
Aging system? We'll show you the numbers before you decide.
Complete heating and cooling systems designed around your home's actual load.
Cleaner air and better airflow, with the debris actually removed.
Heating and cooling repairs on every major brand, most finished in one visit.
Spring and fall maintenance that keeps efficiency up and breakdowns down.
Heat pumps, furnaces, and boilers brought back to steady, even heat.
Heat pumps sized for your climate, with backup heat set up correctly.
Quiet, efficient ductless systems with clean line-set installs.
Cold air back fast, with the common parts already on the truck.
Available now·Talk with someone about your HVAC needs
Most of the calls we answer come down to two things: a house that won't cool, or a house that won't heat. Here's how we handle both.
When your AC hums but won't cool, blows warm air, or keeps tripping the breaker, the fix is usually a single worn component. We test the system, find it, and replace it, often the same day. You get a clear price before any work starts, and if the system is old enough that replacement makes more sense, we'll show you both numbers.
When the furnace clicks but never lights, lights and shuts off, or runs without warming the house, the cause is usually one component. We test the ignition, airflow, and safety controls to find it. You'll get a clear quote first, plus a safety check of the combustion and venting while we're there.
If something seems off with your comfort system, it usually comes down to one of these. Here are the problems we get called about most across Boulder, and how we put a stop to each.
A system pushing warm air in summer is the call we run most. Our trucks carry capacitors, contactors, and motors to restore cooling same-day.
AC repairFrequent on-off cycling is the furnace protecting itself from a real problem. Ignoring it risks the heat exchanger, the most expensive part in the cabinet.
Furnace repairWeak airflow at the vents points to duct restrictions, a struggling blower, or high static pressure. A tune-up finds it before it kills the motor.
Maintenance & tune-upsWhen repair bills start stacking up, a modern high-efficiency system often costs less per month than keeping the old one alive.
System replacementA musty smell at startup often means moisture in the ducts or a dirty evaporator coil, worth addressing before it becomes a bigger air-quality problem.
Air duct cleaningWe size and mount mini-splits cleanly, proper line sets, condensate handling, and a tidy exterior finish, so they work as good as they look.
Mini-split installationA house at 90 degrees is an every-hour problem, so we treat it like one. Same-day appointments across Boulder, with evenings and weekends available.
Every technician has years of hands-on HVAC experience across air conditioners, furnaces, heat pumps, and ductless systems, and trains continually on new models and refrigerants. Your home gets a specialist, not a generalist with a parts catalog.
If a $40 capacitor fixes it, that's what we'll tell you. We quote repair and replacement honestly, with real numbers, and let you choose, no scare tactics, no pressure.
Installations get the full treatment, real load calculation, correct line sets, sealed and balanced ductwork connections, and a complete commissioning test before we leave.
For over a decade, Boulder HVAC has been a leading provider for HVAC service in this part of CO. Our locally based technicians understand the unique challenges that local comfort systems face, from the seasonal swings that work equipment hardest to the code requirements local inspectors actually check.
Every technician on our team is experienced, vetted, and trained across every major brand and fuel type. We build every quote around your home's actual heating and cooling load. When the furnace goes out, you deserve a team that can be there fast, not a national call center hundreds of miles away.
Get a price quote from a local team that knows homes like yours.
Our 4-step process is designed for accuracy, speed, and zero surprises on the invoice.
Reach us at (970) 602-4925. We'll ask what the system is doing, give honest first guidance over the phone, and set up a visit at your convenience.
Our technician tests the system, capacitors, motors, refrigerant charge, ignition, airflow, safeties, pinpoints the actual fault, and presents your options with clear, upfront pricing.
Most repairs finish the same visit, our trucks carry the common parts. Replacements are installed to code with proper sizing, sealed connections, and clean workmanship.
We verify temperatures at the vents, check the charge, confirm the condensate drains clear, and walk you through what was done. Optional maintenance plans keep the system cleaned, inspected, and running efficiently for years.
Upfront pricing · Same-day service available
A house with no AC in a heat wave isn't something to wait out. Here's what our team does from your first call to get it under control.
Our team answers your call promptly, gathers key details, cooling or heating, running or dead, any error codes on the thermostat, and gets you on the schedule, often same-day. We'll walk you through switching the system off if it's iced over or short-cycling in the meantime.
Your technician shows up ready to work, not just to look. The common failure parts ride on every truck, so the visit moves straight from diagnosis into repair.
On the first appointment, we test the full system. Our technician works through electrical, refrigerant, and airflow checks and explains what happened in plain language.
We verify the fix held and stand behind the work. For older systems we recommend a maintenance schedule to catch the next problem while it's still small, which is the cheapest comfort insurance there is.
"Years of dust, pet hair, and who knows what else came out of our ducts. After the cleaning, rooms that never got air finally do, and my wife's morning allergies have all but disappeared. They showed us before-and-after photos of everything they pulled out."
"The furnace quit at 11 pm with the temperature dropping fast and a newborn in the house. They answered right away and talked me through checking the thermostat and breaker, then had a technician out first thing. Heat was back before noon. Absolute pros."
"Another company quoted us a full system replacement. Boulder HVAC traced it to a failed blower motor and fixed it for a fraction of that quote. The tech said the rest of the system had years left in it. You remember honesty like that."
Your home runs on this equipment every single day. Here's why local families choose Boulder HVAC.
We don't send a rookie with a gauge set and a hope. Each technician brings genuine field experience in diagnosis, safe gas and electrical work, and clean installation, the kind of depth that turns a service call into a lasting fix.
Effective doesn't have to mean oversold. We size systems honestly and install them to code with quality fittings and clean workmanship, so you get reliable comfort with minimal disruption to your household.
Our team believes in keeping systems alive with simple, scheduled care. If you want to avoid the emergency replacement, our spring and fall maintenance visits clean coils, verify the charge, and test every safety control. It's that simple. This approach is why so many homeowners recommend us.
Wherever you are in our service area, we've got it covered, with fast repairs, quality installs, and maintenance plans reaching every community on our list.
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