Stay Cozy in Your House All Year Long

Hire an HVAC contractor in the Fostoria & Lapeer, MI areas for installations and repairs

Native Michiganders know how cold a northern winter gets. By summer, it can still warm up and become uncomfortably hot. Take advantage of HVAC services and make sure your house is prepared for any challenge. SIR Heating and Air Conditioning, LLC is an HVAC contractor located in Fostoria & Lapeer, Michigan and we service all the surrounding towns nearby. We'll make sure your home stays comfortable all year long.

Our crew can perform HVAC services like...

AC installation and repair | Furnace installation and repair | Water heater installation


We also install indoor air quality filtration systems. Whether you're upgrading from an old model or replacing a broken unit, we'll help you find the right match for your home.

Get a free estimate on HVAC services in Fostoria & Lapeer, MI and surrounding areas when you call today.

Maximize the service life of your HVAC system

HVAC systems tend to last a long time, but they will eventually break down. Take advantage of an annual maintenance plan so that your unit lasts as long as possible. SIR Heating and Air Conditioning can come to your home and perform a quick tuneup of your HVAC system. We can find and replace damaged parts before they cause your entire system to shut down.

Sign up for an annual maintenance plan and save money in the long run with an HVAC system that lasts.

$300 Discount

Any new furnace purchase

$600 Discount

Any high efficient furnace and A/C purchased

$79 Special

Fall furnace tune up


Air quality is just as important as temperature

Finding yourself constantly getting sick or experiencing allergy symptoms? It might be the air quality in your house. SIR Heating and Air Conditioning can install a variety of air purification systems that will keep your air safe from allergens, mold and dust. If you get dry skin during the cold Michigan winters, a humidifier can put moisture back in the air to give you some relief.

Call 586-531-3402 to learn more about air purification systems from the top HVAC contractor in the Fostoria & Lapeer, MI areas.

About Us

Here at SIR Heating and Air Conditioning, our goal is to help homeowners find the right system that fits their needs. When it's that time to repair or replace your old inefficient furnace and air conditioner system, we can explain the differences of repair over replacement, so you don't throw your money out the window and start saving on utility bills. We have over 30 years of experience in the HVAC trade in service, installation, ventilation, duct work, etc.. We are fully licensed and insured.

We service all makes and models of heating and air conditioning equipment. We like to build a relationship with our customers, and we do not treat you like you are just another job. We strive on our service we offer, Integrity we have, and the Reliability we will give to you. Call us now to schedule for that furnace or air conditioner inspection, tuneup, estimate, etc. If you have any questions, please call me direct.

Thank you
Randy Sir
(586) 531-3402