Furnace Installation in Wellesley, MA

Stay Warm All Winter Long

Professional furnace installation that keeps your family comfortable when temperatures drop.

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Gas Furnace Installer Wellesley

Reliable Heat When You Need It

Your old furnace picked the worst possible time to quit. The forecast shows single digits, and you’re wondering if you should have replaced it last spring when the repair bills started adding up.

Here’s what happens when you get a properly installed furnace: no more cold mornings waiting for the house to warm up. No more rooms that never quite get comfortable. No more holding your breath every time you hear strange noises from the basement.

You’ll notice the difference immediately. Even heat throughout your home. Lower energy bills because modern furnaces use fuel more efficiently. And most importantly, confidence that your heating system will work when you need it most.

Wellesley Furnace Installation Company

We Know New England Winters

Dempsey Energy has been keeping Norfolk County families warm for years. We’ve installed thousands of furnaces and seen every challenge that comes with heating older New England homes.

Our team understands the local climate demands and building styles. We know which furnace models perform best in this area and how to size systems properly for homes built in different decades.

With over 12,000 customers who trust us for heating and plumbing services, Dempsey Energy has built our reputation on doing the job right the first time.

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New Furnace Installation Process

Straightforward Installation From Start to Finish

First, we’ll assess your home’s heating needs and current setup. This includes measuring your space, checking ductwork, and determining the right size furnace for efficient operation. No guesswork, no overselling.

Next comes the installation itself. We’ll remove your old unit, make any necessary connections or modifications, and install your new furnace according to manufacturer specifications. We protect your floors and clean up completely.

Before we leave, we’ll test the entire system to ensure proper operation and walk you through basic maintenance. You’ll have our contact information for any questions, plus access to the Dempsey Comfort Club for ongoing service needs.

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Residential Furnace Installation Services

Complete Installation Service Included

Every furnace installation includes proper sizing calculations, safe removal of your old unit, and professional installation of your new system. We handle all electrical and gas connections, plus any necessary ductwork modifications.

You’ll get a thorough system test to verify proper operation and efficiency. We’ll also program your thermostat and explain how to get the best performance from your new furnace.

All work comes with comprehensive warranty coverage. Our licensed technicians carry full insurance, and we’re available for emergency service calls. Many customers join the Dempsey Comfort Club for priority scheduling and maintenance reminders.

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Most residential furnace installations take 4-8 hours, depending on your home’s setup and whether any ductwork modifications are needed. Straightforward replacements where the new furnace connects to existing gas lines and ductwork typically finish in half a day. More complex installations involving electrical upgrades, new gas lines, or significant ductwork changes may require a full day. Emergency replacements often get same-day service, though scheduling depends on availability and parts in stock.
Furnace sizing depends on your home’s square footage, insulation quality, ceiling height, and local climate conditions. A proper load calculation considers all these factors rather than simply matching your old unit’s size. Oversized furnaces waste energy and cycle on and off frequently, while undersized units can’t keep up on cold days. Professional sizing ensures optimal efficiency and comfort. Most Wellesley homes need furnaces ranging from 60,000 to 120,000 BTUs, but each situation requires individual assessment.
Yes, replacing an aging furnace before complete failure gives you more options and better timing. Furnaces typically last 15-20 years, and efficiency drops significantly in the final years. Warning signs include rising energy bills, frequent repairs, uneven heating, and strange noises. Planning replacement during mild weather means better scheduling, more equipment choices, and avoiding emergency service charges. You’ll also have time to research rebates and financing options rather than making rushed decisions during a winter breakdown.
Yes, Dempsey Energy’s licensed technicians handle all gas line connections and obtain necessary permits for furnace installations. We’re qualified to work with natural gas and propane systems safely. All gas work meets local codes and manufacturer requirements. We’ll also coordinate any required inspections with local authorities. This comprehensive service means you don’t need to hire separate contractors or worry about permit paperwork. Everything is handled professionally as part of the installation process.
We’ll safely disconnect and remove your old furnace as part of the installation service. This includes draining any remaining fuel, disconnecting gas and electrical lines, and carefully removing the unit from your basement or utility area. Old furnaces are disposed of according to local regulations, and any recyclable components are handled appropriately. The removal process protects your floors and walls, and we’ll clean the installation area completely before finishing the job.
New furnaces come with manufacturer warranties covering parts for 5-10 years depending on the model and brand. Labor warranties typically cover installation work for one year. Extended warranty options are available for additional coverage. Dempsey Energy also provides service guarantees on our installation work. Customers who join the Dempsey Comfort Club receive priority service and maintenance reminders to keep warranties valid. We’ll explain all warranty terms and help you register your new equipment with the manufacturer.