Annual Furnace Maintenance | Top Tune-Up & Check-Up Services
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Expert Furnace Maintenance and Tuneup Services in Southeast Michigan

A well-maintained furnace is essential for staying warm and comfortable during Michigan’s frigid winters. At Randazzo Heating, Cooling, and Electrical, we provide professional furnace maintenance and tuneup services to help your heating system operate at its best. Whether you need a routine or thorough inspection, our team helps your furnace remain safe, efficient, and reliable all season long.

Dependable Furnace Maintenance and Tuneups

Randazzo Heating, Cooling, and Electrical recognizes the critical role a well-maintained furnace plays in your home’s comfort and safety. Our comprehensive maintenance services optimize your furnace’s efficiency, reduce energy costs and prevent unexpected breakdowns. Serving homeowners in DetroitAnn ArborDearbornCantonWarrenWestlandTroyRochester Hills, Macomb, and Sterling Heights, our skilled technicians tailor each maintenance plan to meet your specific needs.

We follow a meticulous process to provide your furnace with the care it requires:

  1. Accessing internal components: First and foremost, our technician will remove the door on your furnace to access the internal mechanics. 
  2. Replacing dirty filters: Every furnace has an air filter that catches debris from the air before it can get into the rest of the mechanisms. If there is dust buildup, our technician will examine and replace the filter. Replacement frequency depends on several factors, including filter thickness, Minimum Efficiency Reporting Value (MERV) rating, and household conditions such as pets, smoking, or high occupancy. In general, 1- to 2-inch filters should be replaced every one to three months, 3- to 4-inch filters every six to nine months, and 5- to 6-inch filters every nine to 12 months. Homes with pets or smokers may require more frequent changes, as fur, dander, and smoke particulates reduce a filter’s life span. 
  3. Inspecting the flames and gas burners: Your furnace’s burner contains little flames that create the heat that gets distributed throughout your home. These flames should be blue. If they are a different color, such as orange, this can mean a dirt buildup. Our professionals will check these flames and make sure everything looks good.
  4. Removing dust buildup: Dirt and other debris can naturally build up in your furnace over time. If too much builds up, it can lead to performance issues. Using a vacuum hose, your technician will gently clean out any dirt, debris, or dust inside the furnace. 
  5. Assessing and cleaning condensate lines: The condensate lines in your furnace are a series of tubes that collect condensation from your system and drain it to prevent buildup. Your technician will inspect these lines for cracks or potential leaks and clean them out to prevent clogs.
  6. Checking gas valves: Your technician will inspect the gas valves on your furnace for any issues and check for any potential gas leaks, which can be serious if not addressed properly.
  7. Thermostat calibration: The thermostat on your furnace helps monitor and maintain the temperature inside the furnace to prevent overheating. Your HVAC technician will check that your thermostat is working correctly and reading the correct temperature.
  8. Lubrication: Your technician will lubricate motors, fans, and other moving parts to reduce friction and prevent wear and tear.
  9. Testing electrical systems: We verify the integrity and functionality of all electrical components to prevent malfunctions.
  10. Airflow evaluation: Our technicians will assess airflow to ensure proper ventilation and airflow inside the furnace. 

Importance and Benefits of Scheduling Preventive Maintenance

Annual preventive maintenance is key to preserving your furnace’s performance and extending its service life. Routine tune-ups can uncover any hidden issues early, when they are still minor, reducing the chance of major damage or costly repairs. Scheduling at least one furnace inspection each year — preferably in the fall — helps ensure reliable operation before cold temperatures settle in.

Staying current with furnace tune-ups provides multiple advantages, including:

  • Warranty protection: Many manufacturer warranties require periodic maintenance to remain valid.
  • Cost savings: Addressing small problems early and improving energy efficiency often leads to lower utility bills and fewer expensive repairs.
  • Home safety: Checking for potential concerns each year reduces the risk of hazards like fires and carbon monoxide leaks.

When you enroll in the Randazzo Air Care maintenance plan, you will receive the following:

  • Two annual visits: One furnace and one air conditioner service that includes a 20-point inspection, condition assessment, and safety check.
  • True discounts: Air Care Members receive discounts on all repairs and accessories.
  • Replacement equity: Earn $100 per active membership year (up to $500), redeemable for instant credit on a new furnace or air conditioning system.
  • Peace of mind: A Randazzo Heating, Cooling, and Electrical team member will thoroughly assess the condition of your HVAC systems.

How Long Will Furnace Maintenance Take?

On average, a furnace maintenance appointment should take 1-2 hours. This may sound like a long time, but it ensures that your technician thoroughly addresses all potential issues. It is better for your technician to take their time than to rush through the tuneup.

However, a handful of factors can impact your appointment’s timeline. These can include the current state of your furnace and the extent of the work that needs to be done on your unit.

Randazzo Technician at a Customer Home

Professional Furnace Tuneup Services in Detroit, Macomb, Warren, and Other Areas

Whether you need to fix a broken furnace or invest in a new furnace, our team of HVAC experts at Randazzo Heating, Cooling, and Electrical are ready to help. Since 1988, our HVAC professionals have been serving our local communities and providing outstanding services with a smile. 

When you choose our licensed and insured HVAC technicians to service your home comfort systems, you will always receive the following:

  • Free estimates on replacements and service calls: Enjoy transparent pricing with no hidden fees.
  • Financing options: Access flexible financing tailored to your budget.
  • Background-checked technicians: Our technicians inspire trust and reliability with every service.
  • Expert quality workmanship: Experience high standards of service and attention to detail.
  • Superior customer service: We are dedicated to your satisfaction and comfort.

Randazzo Heating and Cooling Trucks ready and prepped for the work day. Main focus is a work van with the letter Randazzo on the side of the work van.

Professional Furnace Tuneup Services in Detroit, Macomb, Warren, and Other Areas

Whether you need to fix a broken furnace or invest in a new furnace, our team of HVAC experts at Randazzo Heating, Cooling, and Electrical are ready to help. Since 1988, our HVAC professionals have been serving our local communities and providing outstanding services with a smile. 

When you choose our licensed and insured HVAC technicians to service your home comfort systems, you will always receive the following:

  • Free estimates on replacements and service calls: Enjoy transparent pricing with no hidden fees.
  • Financing options: Access flexible financing tailored to your budget.
  • Background-checked technicians: Our technicians inspire trust and reliability with every service.
  • Expert quality workmanship: Experience high standards of service and attention to detail.
  • Superior customer service: We are dedicated to your satisfaction and comfort.

Schedule Your Furnace Maintenance With Randazzo Heating, Cooling, and Electrical

Frequent maintenance extends the life of furnace equipment, preserves efficient performance and protects your home’s overall well-being. The professionals at Randazzo Heating, Cooling, and Electrical give every aspect of your heating system the attention it deserves. Through long-standing commitment and specialized expertise, homeowners throughout Southeast Michigan enjoy steady, cost-conscious warmth all winter.

When you need HVAC maintenance in Metro Detroit or nearby areas, always go with the name you know! Contact our team at 586-271-8003 to schedule furnace maintenance today!

Frequently Asked Questions

The best time to schedule maintenance is in late summer or early fall, so your furnace is ready for winter. A spring checkup can also help your system recover from heavy use during the colder months.

While you can perform simple tasks like visual inspections, replacing air filters, or clearing debris around your unit, professional maintenance is essential for safety, more detailed inspections, and warranty protection.

If you’ve missed scheduled furnace maintenance, it’s essential to arrange a comprehensive checkup as soon as possible. Although you cannot fully “catch up,” addressing any accumulated issues can prevent further damage and restore your furnace’s efficiency.

Skipping maintenance increases the risk of breakdowns, reduces system efficiency, and may void manufacturer warranties. Regular care helps avoid costly repairs and promotes safe operation.

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What To Expect

Discover The Randazzo Difference

Preferred Dealer

We install Mitsubishi, Kohler & Lennox brands and are Michigan’s largest award-winning Lennox Premier Dealer.

Fully Licensed & Insured

Our experts are fully licensed and insured, with the expertise to deliver the highest value and the lowest price.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every heating, cooling, and electrical service we perform.

One-Day Installs

Tight on Time? Don’t have multiple days to wait for an installation? We have you covered. Our expert team of technicians will install your new heating or cooling system in one day.

No Subcontractors

We value our in-house team’s talent and knowledge, which equips them to tackle all our customers' requests without hiring subcontractors.

Instant Rebates

Randazzo Heating, Cooling, and Electrical believes your time is precious, so we instantly process the rebate before we say our last goodbye.

Preferred Dealer

We install Mitsubishi, Kohler & Lennox brands and are Michigan’s largest award-winning Lennox Premier Dealer.

Fully Licensed & Insured

Our experts are fully licensed and insured, with the expertise to deliver the highest value and the lowest price.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every heating, cooling, and electrical service we perform.

One-Day Installs

Tight on Time? Don’t have multiple days to wait for an installation? We have you covered. Our expert team of technicians will install your new heating or cooling system in one day.

No Subcontractors

We value our in-house team’s talent and knowledge, which equips them to tackle all our customers' requests without hiring subcontractors.

Instant Rebates

Randazzo Heating, Cooling, and Electrical believes your time is precious, so we instantly process the rebate before we say our last goodbye.

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Our Reviews

See What Your Neighbors Are Saying

I had an excellent experience with Randazzo for my furnace and AC replacement. I was faced with the second expensive repair in less than a year for a 17 year old furnace and decided to invest in a new system. Randazzo scheduled a salesman out for…

Glen D.

Glen D.

Recently our 17-year old, slightly undersized, central air conditioner lost its ability to cool our 2,500 square foot house, even on mildly warm Michigan summer days. I reached out to Alex at Randazzo Heating & Cooling, and he asked me a few diagnostic questions before dispatching…

Edmund S.

Edmund S.

The men who came to my home were friendly, knowledgeable and did exactly what they needed to do to fix our AC. It now works perfectly! Thank-you, Randazzo ~ we will be calling you for our next tuneup in the Fall. FIVE STARS***** I am updating…

Jennifer D.

Jennifer D.

Growing up I used to see the Randazzo commercials and sing the jingle. Randazzo has to be a reputable to have been in business for so long. Randazzo is living up to its reputation. Especially, with the wonderful crew that we were graced with. The entire…

Byron and Naomi P.

Byron and Naomi P.

I called Randazzo’s to replace my furnace, and get a new AC. The salesman, Brent Hall, came out and gave me a complete comprehensive introduction to their Lenix equipment. I ordered the top of the line package, within days Jacob Shastachuk, the installer was here and…

Lucia C.

Lucia C.