- Lowell, MA • Trusted Furnace Specialists
Furnace Services Done Right.
No heat, and suddenly nothing else matters. Armory Plumbing Inc. repairs, installs, replaces, and services gas and electric furnaces for homeowners in Lowell and the surrounding towns. Our technicians are licensed and insured. They show up when they say they will, tell you plainly what’s wrong, and give you a price before any work begins.
- 24/7 Emergency Help
- Free Estimates
- Upfront Pricing
15+ Years Experience
Master plumber owner
4.9 Google Rating
125+ customer reviews
24/7 Availability
Emergency furnace repair
Free Estimates
No hidden fees
- What We Do
Our Furnace Services
Old unit that needs a quick fix? A whole system that’s finished? We handle both, and pretty much everything in between. Here’s how the work breaks down.
Furnace Repair
If your furnace won’t start, blows cold air, or keeps shutting off after a minute, the culprit is usually the control board, the ignitor, or something choking the airflow. We find the cause, explain what we found, and quote the repair before we start. Before we pack up, we check that the furnace is running safely.
Furnace Installation
Whether it’s new construction or a retrofit, a new furnace starts with getting the size right. A unit that’s too big or too small wastes fuel and wears out early, so we size it to your home and how you use it. Gas piping is handled by our licensed technicians, along with the venting and electrical hookup for the new unit.
Furnace Replacement
A common rule of thumb says that once repairs reach about half the cost of a new furnace, replacing it makes more sense. We take out the old unit, install the new one, and make sure it works with your existing ductwork. Looking at a high-efficiency model? Ask us about Mass Save incentives and we’ll help you see what you may qualify for.
Furnace Maintenance
Most no-heat emergencies start as something small that nobody caught. A yearly tune-up is how you catch it. We inspect the burner, the heat exchanger, and the safety controls, and clean what needs cleaning. Furnace tune-ups are $89.
- Know the Signs
Warning Signs Your Furnace Needs Attention
Furnaces rarely die without a heads-up. Pay attention to these and you’ll likely avoid both the cold house and the bigger bill.
Something doesn't seem right?
Have a professional inspect your system before a small issue turns into a breakdown.
No Heat or Insufficient Heat
The thermostat is asking for heat, and what comes out of the vents is cold or barely warm. A dead ignitor, a bad gas valve, or a limit switch that tripped from restricted airflow are the common reasons. A technician can trace the furnace’s sequence of operation step by step until the exact failure turns up.
Uneven Heating
One room is toasty, the one down the hall is freezing. That points to leaky ducts, dampers that are closed or missing, or a blower fighting too much static pressure in the duct system. Once the cause is found, sealing leaks and balancing airflow gets the temperatures closer to even.
Strange Noises
A loud bang when the burners light is delayed ignition. Don’t wait on that one, because it’s a safety problem. Squealing typically comes from a motor bearing on its way out. Rattling can be a loose panel, a blower wheel that’s going bad, or junk in the ductwork. Whatever it is, get it looked at before it turns into something worse.
Frequent Cycling On/Off
Your furnace kicks on, runs for a minute or two, shuts off, then starts over. That’s short cycling. It burns extra fuel and wears out the ignitor. Usually the cause is equipment that’s too big for the house, a dirty flame sensor, or a thermostat sitting in a drafty spot.
- Always On Call
Emergency Furnace Services — 24/7 Urgent Help
Nobody should have to wait until morning when the heat dies in the middle of a January night. Call (978) 815-0895 at any hour, weekends included, and we’ll get a technician headed your way. We do same-day service on most calls, and for emergencies, we’re often at your door within one to two hours.
24/7 Emergency Furnace Repair
Call at any hour, including nights and weekends, and we’ll get a technician headed your way.
Common Furnace Emergencies We Handle
Cracked heat exchangers leaking carbon monoxide, gas valves that won’t open, control boards damaged by surges, and frozen condensate lines on high-efficiency units.
Same-Day & Rapid Response Service
Same-day service on most calls. For emergencies, we’re often at your door within one to two hours.
How to Reach Us in an Emergency
Call (978) 815-0895 any time. For non-urgent work, send an online request; for no heat, the phone is faster.
- The Armory Difference
Why Choose Armory Plumbing Inc.
Great service starts with honest answers and dependable work. Here’s what you can expect when we visit your home.
15+ Years Owner Experience
Our owner is a Massachusetts master plumber with more than 15 years in plumbing and heating. That experience shapes how we diagnose and install.
Licensed & Insured
Our plumbers are licensed in Massachusetts and carry full liability insurance, and every technician is background-checked. You’re protected, and so is your home.
4.9★ Rating (125+ Reviews)
Our 4.9 rating comes from 125+ Google reviews. Customers mention that we explain the work, keep the place clean, and price jobs fairly. You can read them on our Google profile.
24/7 Emergency Service & Same-Day Availability
Heat failures don’t keep business hours, so neither do we. We offer 24/7 emergency service, nights and weekends included, and same-day service on most calls.
Free Estimates & Upfront Pricing
Estimates are free. You’ll know the price before work starts, and you approve it first. No hourly rates, no hidden fees.
- 24/7 EMERGENCY SERVICE AVAILABLE
Plumbing or Heating Emergency?
Don’t let a plumbing leak, clogged drain, or heating failure turn into a bigger problem. Armory Plumbing serves Lowell and surrounding communities with fast, professional emergency service — including nights and weekends.
PROFESSIONAL PLUMBING & HEATING
Complete plumbing, heating, drain, gas, and water heater services for homes and commercial properties.
SAME-DAY & EMERGENCY SERVICE
Fast, dependable service when you need it most, with emergency support available 24/7.
FLEXIBLE FINANCING AVAILABLE
Convenient financing options make essential plumbing and heating projects easier to manage.
HONEST PRICING & FREE ESTIMATES
Clear recommendations, upfront pricing, and free estimates with no unnecessary surprises.
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- Flexible Financing
Affordable Payment Options
Don’t let upfront costs delay essential work. We offer flexible financing to fit your budget.
Quick approval • Multiple plans • No hidden fees
- Simple & Transparent
Our Service Process
We figure out what’s wrong, talk through your options, do the work, and check it before we go.
Inspection & Diagnosis
We start by finding out why the furnace is failing, not just what is failing. Once we know the cause, there’s no guessing at the fix.
Recommendations & Quote
Next you get clear recommendations: repair now, plan ahead for a replacement, or upgrade to a more efficient unit. Every option comes with an upfront price.
Service Execution
Our technicians wear shoe covers, put down drop cloths, and clean up when they’re done. Gas work is handled by licensed technicians.
Testing & Quality Check
Before we call a job finished, we make sure the furnace starts, runs, and heats the way it should, and we do a carbon monoxide safety check. Then we walk you through what we did.
- Local Service
Service Areas — Local Cities and Neighborhoods
Based in Lowell, we serve these nearby towns for furnace work.
- Plumbing & Heating Services By Town
- Chelmsford, MA
- Westford, MA
- Dracut, MA
- Tyngsborough, MA
- Tewksbury, MA
- Billerica, MA
- Andover, MA
- Carlisle, MA
- Reviews & Testimonials
What Our Customers Say
- Our reputation is built on showing up, explaining the work, and treating customers’ homes with care.
- Helpful Answers
FAQs — Common Furnace Questions
Have a question about furnace maintenance, repair, installation, or rebates? We’ve answered a few of the most common ones.
Once a year, and fall is best, before the heating season gets going. Gas furnaces need combustion safety checks. Electric ones need their elements and sequencers inspected.
No heat, rooms that don’t match each other, odd noises, short cycling, energy bills creeping up, or a yellow burner flame. Any of those is worth having a professional take a look.
Yes, 24/7, nights and weekends included. Call (978) 815-0895 and we’ll get someone on the way.
Yes. We partner with Hearth for flexible financing with multiple plans. You can apply online, and approvals often come back quickly.
Possibly. Mass Save offers incentives on some qualifying heating equipment, and what’s available depends on your utility and the system you choose. We can help you check what applies to your home.
- Ready When You Are
Is Your Furnace Ready for Another Winter?
Ready to schedule your service or get a free quote?
Get in touch with Armory Plumbing Inc.
For immediate help, call anytime. For a non-urgent request, you can start a text message.