Dover HVAC keeps local homes comfortable with experienced technicians, stocked trucks that finish most repairs in one visit, and upfront, honest pricing on every job.
A broken AC or furnace doesn't wait, and neither should your service company. With technicians based around the Dover area, we provide fast, reliable service and hands-on care from experienced pros who know the climate and housing stock of our region.
From the first call to the final airflow check, our experienced team handles every heating and cooling problem your home or business can face.
One call for any breakdown, heating or cooling, with the fault found and fixed.
System replacements with proper sizing and a full commissioning test.
Warm air, frozen coils, or a unit that won't start, diagnosed and fixed right.
Quiet, efficient ductless systems with clean line-set installs.
Complete heating and cooling systems designed around your home's actual load.
Seasonal tune-ups that catch small problems before they strand you.
Cleaner air and better airflow, with the debris actually removed.
Heat pumps, furnaces, and boilers brought back to steady, even heat.
Efficient heat pump installs that heat in winter and cool in summer.
New furnaces installed with proper venting, gas work, and a full startup test.
No heat tonight? We find the failed part and get the furnace running.
New air conditioners sized by load calculation and commissioned properly.
Open now·Speak with someone about your HVAC needs
Two systems do most of the work in a typical home, and they're the two we repair most. Here's what to expect when you call.
A dead air conditioner on a hot afternoon is the call we run most. The usual culprit is a small electrical part, a capacitor or contactor, that our trucks carry, so most AC repairs are finished in one visit. Pricing is upfront, and we'll tell you honestly whether a repair is worth it on an older unit.
Most furnace breakdowns come from a handful of parts: flame sensors, igniters, inducer motors, and control boards. We find the one that failed and fix it, usually in a single visit. 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 Dover, and how we put a stop to each.
Low refrigerant, a failed compressor start, or a dirty condenser can all masquerade as the same symptom. Real diagnosis beats parts-swapping every time.
AC repairIf the blower runs but the air never warms, or the unit clicks without lighting, the failure is diagnosable in minutes with the right tools.
Furnace repairA system that runs constantly but never satisfies the thermostat is burning money. Seasonal maintenance restores the efficiency you paid for.
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 replacementDust settling everywhere within a day of cleaning, musty odors when the system kicks on, or allergy flare-ups indoors all point to the ductwork.
Air duct cleaningA garage office, a converted attic, or that one bedroom the ducts never reached, a ductless mini-split solves it without tearing open walls.
Mini-split installationAn HVAC system never fails at a convenient time. We schedule fast, show up on time, and arrive with the parts to finish the job.
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.
We don't just swap the failed part. We check what killed it, airflow restriction, voltage, refrigerant charge, drainage, and correct that too, so the same failure doesn't repeat next season.
Dover HVAC has been keeping homes comfortable in this community and the surrounding NH towns for more than 15 years. We know this area inside and out because this is our home, not just our service area.
Our team doesn't just swap parts and leave. We check the airflow, the charge, and the electrical supply driving the failure common to properties around here. This local knowledge means faster diagnosis, fewer repeat visits, and systems that last.
One call connects you with a nearby technician who can size up the problem and get you a quote.
Every job runs through the same proven steps, so nothing gets missed and the fix actually lasts.
Pick up the phone and dial (351) 345-9323. A few quick questions later, your appointment is on the calendar, frequently the same day.
Our technician tests the system, capacitors, motors, refrigerant charge, ignition, airflow, safeties, pinpoints the actual fault, and presents your options with clear, upfront pricing.
We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the air handler.
To keep your comfort reliable long-term, we can set up seasonal maintenance that cleans coils, checks the charge, and catches small issues before they strand you in the wrong season.
Upfront pricing · Same-day service available
A house with no AC in a heat wave gets dangerous, not just uncomfortable. Here's what our team does the moment you call to restore your comfort fast.
When you call (351) 345-9323, you reach our local team directly. We listen to what's going on, note the details that matter, and get you on the books, often within hours, with quick guidance on what to do until we arrive.
Our experienced technician arrives at your property with a fully stocked truck ready to begin on arrival. Capacitors, contactors, igniters, and motors are already on board.
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.
Seasonal maintenance runs on your schedule, with reminders when you're due, to clean coils and test components before they cost you a compressor. A maintained system is how equipment reaches year 15 and beyond.
"When our old furnace was on its last legs, they walked us through converting to a heat pump instead of just quoting a like-for-like swap. The first winter's bills were noticeably lower, and we got cooling out of the same equipment. Zero regrets on this one."
"The AC would run for hours and never hit the set temperature. Their tech pressure-tested the lines, fixed the leak, and weighed in the correct charge instead of just topping it off like the last guy. It has cooled perfectly ever since."
"We put a ductless mini-split in the bonus room over the garage that was always freezing in winter and roasting in summer. They measured and calculated instead of eyeballing it, and the install was clean and quick. That room is finally usable year-round."
We don't just swap parts and leave. We give you lasting comfort. Every visit is backed by our experience, honest recommendations, and thorough work you can count on.
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.
We size every replacement to your home's real heating and cooling load rather than defaulting to whatever's on the truck. Installations include the details that matter: sealed duct connections, correct line sets, proper condensate handling, clean electrical work. Most installs are completed in a single day with minimal disruption.
Our team focuses on keeping systems alive with simple, scheduled care. If you want to avoid the emergency replacement, our seasonal tune-up plans clean coils, verify the charge, and test every safety control. It's that simple. This focus on longevity is one reason we maintain a 4.9-star rating across 120+ reviews.
From our home base out to the neighboring towns, our technicians are based close enough to respond fast wherever your home or business sits.
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See service areaStraight answers from the technicians who fix these systems every day.
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Read MoreHVAC problems only grow with time. Our team can respond fast. Call now for a fast quote.
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