Signs Your Furnace Needs Repair Before Winter in Pittsburgh

When winter hits Pittsburgh, no homeowner wants to be stuck without heat. Furnaces work hard to keep your home comfortable, but over time, they can show signs of wear and tear. Knowing when your furnace needs attention can help you avoid costly breakdowns and stay warm all season long.

At MRT HVAC, we’ve been helping Pittsburgh families with furnace repair and installation for over 30 years. Here are five clear signs it’s time to call a professional.

1. Rising Energy Bills

If your heating bills are higher than last winter — even though your usage hasn’t changed — your furnace may be losing efficiency. Older or poorly maintained systems work harder to produce the same heat, which drives up costs.

2. Uneven Heating in Your Home

Do you notice some rooms are warm while others stay chilly? Uneven heating can signal issues with your furnace, ductwork, or thermostat. A properly working furnace should distribute heat evenly throughout your Pittsburgh home.

3. Strange Noises During Operation

Banging, rattling, or squealing noises aren’t normal. They often mean parts inside your furnace are loose, worn, or failing. Ignoring these sounds can lead to bigger — and more expensive — problems later.

4. Frequent Repairs or Breakdowns

If you’re calling for service more than once a season, your furnace may be nearing the end of its lifespan. Frequent repairs often cost more in the long run than investing in a new, energy-efficient system.

5. Furnace Age Over 15 Years

Most furnaces last 15–20 years with proper maintenance. If yours is older than 15 and showing other warning signs, now is the time to plan for a replacement before winter arrives.

Conclusion Don’t wait for a breakdown on the coldest night of the year. If you notice any of these warning signs, MRT HVAC can help with fast, reliable furnace repair and replacement in Pittsburgh and surrounding neighborhoods like South Hills, Mt. Lebanon, and Peters Township.