Furnace Installation in Marshfield, MA

Reliable Heat When You Need It Most

Professional furnace installation that keeps your Marshfield home warm through every New England winter storm.

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New Furnace Installation Services

Lower Bills, Better Comfort, Zero Surprises

Your old furnace is costing you money every month it runs. Those uneven temperatures, the constant cycling, the dread every time you open your heating bill – that ends with proper furnace installation.

A new, properly sized furnace cuts your heating costs significantly. You’ll notice the difference in your first full month of operation. More importantly, you’ll have consistent heat in every room, not just the areas closest to your old, struggling unit.

No more wondering if your furnace will make it through the next polar vortex. No more emergency service calls during February blizzards. Just reliable, efficient heat that works when you flip the switch.

Marshfield Gas Furnace Installers

We Know South Shore Heating

We’ve been installing furnaces throughout Plymouth County for years, building relationships with over 12,000 local customers who trust us with their home comfort needs.

We understand Marshfield’s housing stock – from the classic Colonials near the coast to the ranch homes inland. Each home has specific heating requirements, and we size and install your new furnace based on your actual needs, not guesswork.

Our Dempsey Comfort Club members get priority service and exclusive benefits because we believe in taking care of the customers who trust us with their most important investment – their home’s heating system.

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Professional Furnace Installation Process

Straightforward Installation, Lasting Results

We start with a proper heat load calculation for your specific home. This determines the exact furnace size you need – not too big, not too small, but perfectly matched to heat your square footage efficiently.

Next, we handle all permits and ensure your installation meets Massachusetts building codes. Your new furnace gets connected to existing ductwork, with modifications made if needed for optimal airflow and efficiency.

Before we leave, we test every component, walk you through your new system’s operation, and register your warranty. You’ll have our contact information for any questions, plus access to our customer portal for future service scheduling.

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Complete Furnace Installation Service

Everything Included, Nothing Extra

Your furnace installation includes removal and disposal of your old unit, professional installation of your new high-efficiency furnace, and all necessary permits and inspections. We handle the paperwork so you don’t have to.

Many Marshfield homes need minor ductwork adjustments to maximize efficiency with a new furnace. We identify these needs upfront and discuss options before starting work. No surprise charges, no hidden fees.

Every installation comes with manufacturer warranty registration and our commitment to service what we install. When you join our Dempsey Comfort Club, you get priority scheduling and exclusive member benefits for ongoing maintenance and service needs.

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Most furnace installations take 4-8 hours, depending on your home’s setup and whether ductwork modifications are needed. Straightforward replacements in homes with existing, properly sized gas lines and ductwork typically finish in a single day. If we need to run new gas lines, modify ductwork, or install additional components like humidifiers, the job might extend into a second day. We’ll give you an accurate timeline during your estimate so you can plan accordingly.
Furnace sizing depends on your home’s square footage, insulation levels, window efficiency, and ceiling height – not just square footage alone. Many Marshfield homes have older windows or minimal insulation that affects heating requirements. We perform a detailed heat load calculation that considers all these factors, plus your local climate conditions. This ensures your new furnace runs efficiently without short-cycling or struggling to maintain temperature during our coldest winter days.
Yes, we obtain all required permits and schedule necessary inspections with Marshfield building officials. Massachusetts requires permits for furnace installations, and we’re familiar with local code requirements including proper venting, gas line connections, and electrical work. We handle the paperwork, coordinate with inspectors, and ensure your installation passes all required inspections. This protects you from potential issues if you ever sell your home or need insurance claims related to your heating system.
Most older Marshfield homes can accommodate high-efficiency furnaces, though some modifications might be needed. High-efficiency units require different venting than older furnaces – typically PVC pipes instead of metal chimneys. We evaluate your current setup and explain what changes are necessary. The energy savings from a high-efficiency furnace often justify any additional installation costs, especially with Massachusetts utility rebates available for qualifying high-efficiency equipment.
We remove and properly dispose of your old furnace as part of our installation service. This includes disconnecting gas lines, electrical connections, and ductwork safely, then hauling away the old unit. We follow proper disposal procedures for older equipment, including handling any materials that require special disposal methods. You don’t need to worry about arranging removal or finding disposal options – we handle everything so your basement or utility area is clean and ready for your new system.
Installation timing depends on the season and your specific equipment needs. During peak heating season (October through February), scheduling typically runs 1-2 weeks out for standard installations. Off-season installations often happen within a few days of your approval. If you’re dealing with a furnace failure during winter, we prioritize emergency replacements and can often install within 24-48 hours. Dempsey Comfort Club members get priority scheduling year-round, which means faster service when you need it most.