Furnace Installation in Franklin, MA

Reliable Heat When You Need It Most

Our professional furnace installation ensures that your Franklin home remains warm throughout every New England winter.

We Leave Our Customers Smiling

Ready for 5-Star Level Service?

Gas Furnace Installer Franklin

Consistent Warmth, Lower Energy Bills

Your old furnace is costing you more than just comfort. Every month it struggles to heat your home, and your energy bills climb higher while rooms stay cold.

A properly installed, right-sized furnace changes everything. You’ll notice the difference immediately—even heat throughout your home, lower monthly utility costs, and the confidence that comes with reliable equipment.

New furnace installation isn’t just about staying warm. It’s about ending those middle-of-the-night worries when temperatures drop and your heating system starts making strange noises. It’s about walking into every room of your house and feeling comfortable, not reaching for another sweater.

Franklin HVAC Contractors

Local Heating Experts You Can Trust

Dempsey Energy has been keeping Franklin families warm with professional HVAC and plumbing services. We understand what Norfolk County winters demand from your heating system.

With over 12,000 customers throughout the area, we’ve seen every type of furnace installation challenge. From older homes with particular heating requirements to new construction needing efficient systems, our experience shows in every job.

Our Dempsey Comfort Club keeps customers connected with ongoing maintenance and priority service. When you need heating help, you’re not starting from scratch with strangers—you’re calling people who know your system.

New Furnace Installation Process

Straightforward Installation, No Surprises

First, we assess your home’s heating needs and existing setup. This isn’t about selling you the most expensive unit—it’s about finding the right size and efficiency level for your specific situation.

Next comes the installation itself. We handle all the technical work: connecting gas lines safely, installing proper venting, and providing your new system meets all local codes. Your old furnace gets removed and disposed of properly.

Before we leave, we test everything thoroughly and walk you through your new system’s operation. You’ll know how to maintain it, when to change filters, and what to watch for. We’re not disappearing after installation—you’ve got ongoing support through our service network.

Ready to get started?

Explore More Services

About Dempsey Energy

Get a Free Consultation

Franklin Heating System Replacement

Complete Installation, Professional Results

Every furnace installation includes proper sizing calculations based on your home’s square footage, insulation, and layout. You’re not getting a one-size-fits-all approach—your system is matched to your actual heating requirements.

We handle all the technical details: gas line connections, electrical work, ductwork modifications if needed, and proper venting installation. All work meets Massachusetts building codes and manufacturer specifications for warranty protection.

Franklin homeowners appreciate our thorough approach. We donot expedite installations or compromise on safety checks. Your new furnace gets tested under actual operating conditions before we consider the job complete. You’ll have heat when you need it, running efficiently from day one.

How long does furnace installation take in Franklin homes?

Most furnace installations take 4-8 hours, depending on your home’s setup and whether any ductwork modifications are needed. Straightforward replacements where the new unit fits the existing space typically finish faster. If you need gas line work or significant ductwork changes, it might extend to a full day. We’ll give you a realistic timeline upfront so you can plan accordingly. Emergency installations can often be scheduled within 24-48 hours during the heating season.

What size furnace do I need for my Franklin home?

Furnace sizing depends on your home’s square footage, insulation quality, ceiling height, and window efficiency—not just the size of your old unit. Many Franklin homes have oversized furnaces that waste energy and don’t heat evenly. A proper load calculation determines the right BTU output for your specific situation. Undersized units struggle to keep up in cold weather, while oversized units cycle on and off too frequently, reducing efficiency and comfort. Professional sizing verifies perfect performance and energy savings.

Do you install high-efficiency furnaces in Franklin?

Yes, we install high-efficiency furnaces with AFUE ratings up to 98%. These units can significantly reduce your heating costs compared to older, less efficient systems. High-efficiency models require special venting and condensate drainage, which we handle as part of the installation. While the upfront cost is higher, the energy savings often pay for the difference within a few years. We’ll help you understand the long-term value based on your current energy usage and heating costs.

What happens to my old furnace after installation?

We remove and dispose of your old furnace properly as part of the installation service. This includes disconnecting all gas, electrical, and ductwork connections safely. Old furnaces contain materials that require proper disposal, and we handle all environmental requirements. You don’t need to worry about arranging separate removal or disposal services. The work area gets cleaned up before we leave, so you’re not dealing with debris or old equipment taking up space in your basement.

Can you install a furnace if my home has old ductwork?

Most Franklin homes with existing ductwork can accommodate new furnace installation, though some modifications might be needed. We evaluate your current ductwork during the assessment and identify any issues that could affect performance. Common problems include undersized return ducts, leaky connections, or poor layout that reduces efficiency. Minor ductwork modifications can often be completed during installation. Major duct replacement is a separate project, but we’ll explain your options and help you prioritize what’s needed for optimal heating performance.

Do new furnaces come with warranties in Franklin?

Yes, new furnaces include manufacturer warranties covering parts and sometimes labor for specified periods. Warranty terms vary by brand and model, typically ranging from 10-20 years on major components. Proper installation by licensed professionals is required to maintain warranty coverage. We confirm all installation work meets manufacturer specifications so your warranty remains valid. Additionally, our service network can handle any warranty work that might be needed. Regular maintenance through programs like the Dempsey Comfort Club helps prevent issues and keeps warranties in excellent standing.

Local Resources

Franklin, MA is located in Norfolk County in Massachusetts State