Dierkes Heating & Air has been the locally owned heating and cooling contractor Coon Rapids homeowners, landlords, and businesses have called since 2013. We show up on time, give you straight answers, and get the work done right. We treat your home the way we'd want ours treated. Whether you need a furnace repaired on a bitter January morning or a central air system installed before summer, our qualified HVAC technicians are ready to help. No pressure and no gimmicks, just reliable comfort. Call (612) 665-9289 for a quote.
For residential and commercial HVAC work alike, we cover the full range of heating and cooling needs. That means repair calls, full system replacements, seasonal tune-ups, and everything in between. Homes, rental properties, small offices, and multi-unit buildings all get the same attentive service.
When your air conditioner stops keeping up, we diagnose the problem and fix it. We handle central AC repair, condenser and compressor service, evaporator coil cleaning, and refrigerant leak diagnosis. If your system is past its useful life, we install new central air systems sized correctly for your home. We also install ductless mini-splits for additions, sunrooms, or any room that lacks ductwork.
A heating system that fails in a Minnesota winter is not a minor inconvenience. We repair furnaces, service boilers and hydronic heating systems, and install new heating equipment when replacement makes more sense than another repair. We also troubleshoot airflow problems and uneven temperatures so every room in the building stays comfortable.
Leaky or damaged ductwork wastes energy and makes your system work harder than it should. We inspect, repair, and seal ductwork to restore efficiency. We also install smart thermostats and standard thermostat replacements, and we handle air filtration and air purifier installation for customers who want cleaner indoor air year-round.
A spring AC tune-up and a fall furnace tune-up catch small problems before they become expensive repairs. During a maintenance visit we inspect the heat exchanger, clean burners, check refrigerant levels, test controls, and review the overall condition of the system. You get straight answers about your furnace, AC, and ductwork, no surprises. Reach out and we'll start at the unit.
Don't let a small problem turn into a no-heat night or a no-cool afternoon. When your system goes down, a real local person answers the phone and a qualified technician gets dispatched to your address. We offer same-day service and respond to after-hours and weekend calls because heating and cooling emergencies do not follow a business-hours schedule.
When we arrive, we protect your floors and finishes while we work, and we give you a clear picture of what is wrong and what it will take to fix it before we start.
Call in the morning. Comfortable by afternoon. Follow-up when you need it.
Call (612) 665-9289 to reach us any time.
Whether it's a one-time repair or a full system replacement, the work we do is shaped by what Minnesota winters and summers actually demand. Coon Rapids sits in Anoka County, where temperatures regularly drop well below zero and heating carries the full load for months at a time. The services below reflect that reality.
Gas and propane forced-air furnaces heat the vast majority of homes in this part of Minnesota, and when one fails in February, it fails urgently. We respond quickly to no-heat calls, diagnose the failure point, and repair it the same day whenever possible. Common issues include failed igniters, cracked heat exchangers, dirty flame sensors, and blower motor problems. When a furnace has aged past the point where repair makes financial sense, we help you choose a replacement system, size it correctly for your home, and install it with minimal disruption. We speak only to the heating equipment itself, not to gas-line runs or panel work, which belong to the appropriate trades.
Modern cold-climate heat pumps are rated to operate efficiently at temperatures down to roughly -15 degrees Fahrenheit, which makes them genuinely viable in the Coon Rapids area for the first time. Unlike older heat pump technology that lost efficiency quickly in cold weather, today's variable-speed systems keep up through a Minnesota winter. We install cold-climate heat pumps paired with existing ductwork or as ductless mini-split systems for homes without ducts. One system handles both heating and cooling, which simplifies maintenance and can reduce operating costs. State and federal incentive programs have made these installations more accessible, and we can walk you through what the equipment itself involves. We do not handle panel upgrades or disconnect installation; those belong to a licensed electrician.
Forced-air heating dries out indoor air, and in an Anoka County winter that effect is significant. Dry air leads to cracked skin, irritated sinuses, static electricity, and damage to wood floors and furniture. A whole-home humidifier mounts directly to the air handler and introduces controlled moisture into the airstream every time the furnace runs. The result is consistent humidity throughout the house without the maintenance burden of portable units. Installation connects the humidifier to the air handler and the existing HVAC controls; we size the unit to your home and set it up to run automatically. Pick up the phone and we'll handle the system.
Booking an HVAC service call is simple. You call, we confirm a time, a qualified technician arrives, and you get a clear explanation of the work before anything is done. There is no pressure to approve services you do not need, and our pricing is straightforward. Call (612) 665-9289 to request an estimate on any repair, installation, or maintenance visit.
We have been doing this work in the Coon Rapids area for over a decade, and our reputation is built on showing up when we say we will and finishing the job cleanly. We make the repair and leave the home tidy.
Property managers trust us to keep their buildings comfortable, and we understand what that relationship requires. Responsiveness matters. Clear communication matters. When a tenant calls with a no-heat complaint, you need a contractor who picks up, schedules quickly, and keeps you informed from diagnosis through completion.
We work with landlords, property management companies, and small commercial clients across the area. That includes apartment HVAC repair, multi-family system service, commercial heating and cooling repair, and full system replacements for commercial properties. We provide honest assessments so you can make informed decisions about repair versus replacement on aging equipment. We are a same-day available, locally owned operation, and we treat every service call with the same care whether it is a single-family home or a multi-unit building.
We serve Coon Rapids and the communities throughout Anoka County and the northwest metro. That includes Blaine, Andover, Champlin, Brooklyn Park, Fridley, Ham Lake, Ramsey, and Anoka. If you are nearby and need heating or cooling help, call us and we will let you know if we can get to you.
We run the system through a full operating cycle before we consider the job complete. That includes checking thermostat response, airflow, temperature output, and any controls that were part of the repair. If something is not performing the way it should, we address it before we leave rather than calling it done and hoping for the best.
We inspect the heat exchanger, burners, ignition system, flame sensor, blower motor, and controls to find the root cause of the failure. Once we identify the problem, we explain it clearly and give you a quote before starting any work. Common issues include failed igniters, dirty flame sensors, and blower motor problems, and we carry common parts to handle most repairs in a single visit.
Modern cold-climate heat pumps are rated to operate efficiently at temperatures down to roughly -15 degrees Fahrenheit, which makes them genuinely viable in the Coon Rapids area. One system handles both heating and cooling, which simplifies maintenance and can reduce operating costs compared to running separate systems. We can walk you through whether the equipment makes sense for your specific home and heating setup.
Forced-air heating pulls moisture out of indoor air, and in an Anoka County winter that effect is significant. Dry air leads to cracked skin, irritated sinuses, static electricity, and damage to wood floors and furniture. A whole-home humidifier integrates with your existing HVAC system and delivers consistent humidity to every room automatically, which a portable unit cannot do.
Common signs include uneven temperatures from room to room, a system that runs constantly without reaching the set temperature, rising energy bills without a change in usage, and repairs that keep coming back. An undersized system will struggle to keep up during the coldest and hottest stretches of the year. If you are noticing any of these patterns, a thorough inspection will tell you whether the issue is the equipment, the ductwork, or something else.
A no-heat situation in a Minnesota winter, a no-cool situation during an extreme heat stretch, or a system that has stopped working entirely and cannot be restarted are all emergencies. A system making a burning smell or an unusual loud noise that started suddenly also warrants an urgent call. Call (612) 665-9289 and we will respond as quickly as possible.
A clogged filter restricts airflow through the system, which forces the equipment to work harder and can cause the heat exchanger or evaporator coil to overheat or freeze. Dirty or leaking ductwork wastes conditioned air before it reaches the rooms that need it, leading to uneven temperatures and higher energy use. Both issues are straightforward to address and make a real difference in how the system performs.
Additional charges come from parts, from a repair that turns out to be more involved than the initial symptoms suggested, or from a second issue discovered during the inspection. We explain any additional findings and get your approval before proceeding with work beyond the original scope. There are no charges added after the fact without your knowledge.
Changing a filter, checking thermostat settings, and clearing debris from around an outdoor unit are reasonable things a homeowner can do. Anything involving refrigerant, the heat exchanger, electrical connections within the equipment, or gas components should be handled by a qualified HVAC technician. Attempting those repairs without the right training and tools can create safety hazards and often makes the underlying problem worse.
Make sure the technician can access the furnace or air handler, the outdoor unit, and the thermostat without obstacles. If the equipment is in a utility room, storage area, or basement, clearing a path before the visit saves time. Knowing the age of your system and any recent repair history is helpful but not required. We will find what we need once we are on-site.
The right answer depends on the age and condition of the furnace, the cost of the repair, and whether your home's ductwork and electrical setup are compatible with a heat pump. A furnace that is relatively new and needs a straightforward repair is usually worth fixing. A furnace that is older, inefficient, and facing a costly repair is often a good candidate for a heat pump upgrade. We will give you honest numbers and let you decide.
We inspect the evaporator coil, blower motor, filter, electrical connections, drain pan, and any controls associated with the air handler. On a heating call we also check the heat exchanger and burner assembly if the unit is a furnace. The goal is to understand the full condition of the system, not just the symptom that prompted the call.
For most repair and installation work, yes. The technician will shut off power to the equipment at the unit disconnect before working on components inside the system. This is standard practice for safe, code-compliant work. We handle the shutdown and restart as part of the service visit.
Dierkes Heating & Air is ready to take your call. Whether you need emergency furnace repair, a new heat pump installation, a seasonal tune-up, or help with a system that has been underperforming, we are the locally owned team that has been serving this area since 2013.
Honest quotes. Code-compliant work. Reliable comfort.
Call (612) 665-9289 to schedule service or request an estimate. We answer the phone, we show up, and we get it done right.
From furnace calls on January mornings to AC service on July afternoons, we handle the full range of heating and cooling work that Coon Rapids homes and buildings depend on every season. The table below covers every service we offer, who it fits best, and what is practical to know before you call. If you have questions about a specific situation, reach out and we will walk through it with you.
| Service Type | What's Included | Common Needs | What to Keep in Mind |
|---|---|---|---|
| AC Repair & Service | refrigerant leak diagnosiscondenser and compressor serviceairflow and cooling problemscontrols and thermostat checks | Homeowners and property managers dealing with warm air, short-cycling, or a system that will not start | Most repairs can be completed in a single visit when common parts are on hand; same-day service is available when the schedule allows |
| Heat Pump Repair & Service | heat pump diagnosis and repairrefrigerant and compressor servicemini-split repairsame-day availability when schedule allows | Homes and buildings running heat pumps or ductless mini-split systems year-round | Heat pumps handle both heating and cooling, so a failure affects comfort in any season |
| Seasonal Maintenance & Tune-Ups | full system cleaning and inspectioncontrols and airflow checkearly wear identificationfurnace tune-up in fall, AC tune-up in spring | Any homeowner or property manager who wants to avoid emergency repair calls at the worst possible time | A tune-up visit is also a good opportunity to address uneven temperatures or airflow problems that have been building over time |
| Furnace Repair & Replacement | heat exchanger and burner inspectionignition system repairfull furnace replacementefficiency upgrade options | Homeowners with an aging or failing gas or propane furnace | Sub-freezing temperatures arrive in November and stay through March; furnace reliability is not optional in Anoka County |
| Whole-Home Humidifier Installation | humidifier integration with existing air handlercontrols calibrationwhole-home coverage instead of portable unitscomfort improvement in dry winter air | Households dealing with dry air, irritated sinuses, or woodwork affected by low indoor humidity during heating season | Forced-air heating pulls moisture from indoor air all winter; most homeowners notice a difference within the first few days of operation |
| Ductwork Repair & Sealing | duct inspectionleak detection and sealingduct repairairflow measurement | Homes with uneven temperatures, high energy bills, or rooms that never quite reach the right temperature | Leaking ductwork wastes conditioned air before it reaches the rooms that need it; a duct inspection can identify where the losses are happening |
| Emergency HVAC Service | same-day response for no-heat and no-cool callsurgent diagnosis and repairavailability 9 AM to 10 PM dailyclear quote before any work begins | Anyone whose system has gone down and cannot wait for a standard appointment | A failed furnace in a Minnesota winter is a genuine emergency; call as soon as the problem starts rather than waiting to see if it resolves |
| Heating Repair & Service | no-heat diagnosisgas furnace repairignition and burner issuesheat distribution problems | Any household or building that has lost heat or is heating unevenly | Minnesota winters make a heating failure urgent; we prioritize same-day response for no-heat calls |
| Boiler & Hydronic Heating Service | boiler inspection and repairhydronic system diagnosisno-heat response for boiler-equipped buildingscontrols and zone service | Homes and commercial properties running boiler-based space heating | Boilers heat the living space through radiant or hydronic distribution; we service the heating equipment and its controls, not domestic water systems |
| Indoor Air Quality & Air Filtration | air filtration system installationair purifier installationallergen and dust reductionintegration with existing HVAC equipment | Households concerned about dust, allergens, or airborne particles, particularly during heating season when homes are sealed up | Minnesota springs bring humidity and allergens; indoor air quality improvements work with your existing system rather than replacing it |
| Thermostat & Smart-Control Installation | thermostat replacementsmart thermostat setup and configurationprogrammable control installationintegration with existing equipment | Homeowners upgrading from an older thermostat or dealing with a control that stopped responding | A properly configured thermostat makes a noticeable difference in system performance and energy use; installation is typically straightforward |
| Full System Installation & Replacement | full HVAC system replacementnew equipment sizing and selectioninstallation across all major brandscode-compliant work on every job | Homeowners and property managers replacing aging or failed equipment, or upgrading to more efficient systems | System replacement is the most significant HVAC investment most households make; we walk through options clearly and let you decide what fits the home and budget |
| Cold-Climate Heat Pump Installation | new heat pump installationheat pump replacementductless mini-split systemsoperation down to roughly -15 degrees F | Homeowners looking for an efficient alternative or supplement to gas heat, including additions and hard-to-condition spaces | Modern cold-climate models are rated for Minnesota winters; utility efficiency programs have made this one of the faster-growing upgrade requests we see locally |
How do I know whether to repair my furnace or replace it?
The decision comes down to the age of the equipment, the cost of the repair, and how efficiently the system has been running. A furnace that is more than 15 to 18 years old and needs a significant repair is often a better candidate for replacement than continued service. We give you straight answers about what the repair involves and what a replacement would cost, with no pressure either way. If repair makes sense, we say so. If the numbers point toward replacement, we walk through the options clearly so you can decide what fits your home and budget.
What causes a system to stop heating or cooling entirely?
The most common causes are a failed ignition component, a tripped limit switch, a refrigerant issue, a blower motor problem, or a thermostat that has lost communication with the equipment. A clogged filter can also shut a system down by restricting airflow past the point the equipment can handle. When we arrive, we start with a full inspection of the unit and its controls to find the root cause before recommending anything.
How often should I schedule a maintenance tune-up?
Once a year for each season the equipment runs is the standard recommendation: a furnace tune-up in the fall before heating season, and an AC tune-up in the spring before the first hot stretch. If you run a heat pump year-round, an annual inspection covers both functions. Regular tune-ups are the most straightforward way to catch wear early and avoid the repair calls that tend to happen at the worst possible time.
Same-Day and Emergency Availability
We make same-day appointments available for urgent situations and respond to no-heat and no-cool calls every day from 9 AM to 10 PM. A Minnesota winter does not wait, and neither do we.
What does a seasonal tune-up actually cover?
A tune-up visit covers cleaning, a full system inspection, a controls check, airflow measurement, and a look at anything showing early signs of wear. We also use tune-up visits to troubleshoot uneven temperatures and airflow problems that homeowners have been living with but never had addressed. The visit ends with a clear explanation of what we found and what, if anything, needs attention.
Can I stay home while the work is being done, or do I need to be there?
You do not need to be present for routine service or a tune-up, but we do ask that an adult be available at the start of the visit so we can confirm access to the equipment and go over what we find. For larger jobs like system installation or replacement, it is helpful to have someone on-site for the duration. We will let you know what makes sense when you call to schedule.
Why is one room in my home hotter or colder than the rest?
Uneven temperatures usually point to a ductwork problem, a zoning issue, or equipment that was not sized correctly for the home. Leaking or poorly sealed ducts lose conditioned air before it reaches certain rooms, and a duct inspection can identify where the losses are happening. A thermostat or controls issue can also cause uneven distribution. We inspect the full system, not just the unit, to find what is driving the imbalance.
Transparent Upfront Pricing
Every job starts with a clear quote covering parts and labor before any work begins. We explain what is driving the cost so there are no surprises when the work is done.
What do strange noises from my HVAC unit usually mean?
Banging or clanking often points to a loose or failing mechanical component. A high-pitched squeal can indicate a blower motor or belt issue. Clicking at startup or shutdown is sometimes normal, but clicking that continues through operation can signal a controls or ignition problem. Rattling may mean debris in the system or a loose panel. If a noise has started recently or is getting louder, it is worth having a technician take a look before the problem develops further.
Is a cold-climate heat pump actually practical in Minnesota?
Modern cold-climate heat pumps are rated to operate efficiently down to roughly -15 degrees Fahrenheit, which covers the range of temperatures Coon Rapids sees in a typical winter. They work well as a primary heating source in well-insulated homes and as a supplement to an existing system in others. We can walk through whether the equipment makes sense for your specific home, your existing ductwork or lack of it, and your heating setup before you commit to anything.
Clean and Respectful Workmanship
We protect your floors and finishes while we work and leave the space the way we found it. Work performed by qualified HVAC technicians means the job is done right and the home is left tidy.
How does a whole-home humidifier differ from a portable unit?
A whole-home humidifier integrates directly with your existing air handler and delivers controlled humidity to every room through the duct system. A portable unit treats only the space it sits in and requires regular refilling. The whole-home system is calibrated to work with your thermostat or smart control, and once it is set up, it operates automatically without the maintenance that portable units require. Most homeowners notice the difference in comfort within the first few days of heating season.
How do I know if my system has a refrigerant or airflow problem?
Signs of a refrigerant issue include an AC that runs continuously but cannot cool the space, ice forming on the outdoor unit or refrigerant lines, or a noticeable drop in cooling output without an obvious cause. Airflow problems tend to show up as weak output from vents, rooms that take much longer than expected to reach the set temperature, or a system that short-cycles. Both issues get worse the longer they sit, so calling sooner rather than later limits the damage.
How do estimates and pricing work before any work begins?
We provide a clear quote that covers what the job involves, what the parts cost, and what the labor looks like before any work begins. If the technician finds something additional that needs attention, we explain it and get your approval before proceeding. There are no charges added after the fact for work that was not agreed on. The goal is that you understand exactly what you are paying for before we start.
Every home and building is a little different, and the right answer for your system depends on the specifics. Call us at (612) 665-9289 and we will talk through what you are seeing, get you on the schedule, and make sure you have straight answers before any work begins.
(612) 665-9289