Heating Services in Dayton, Ohio
From a furnace that won’t ignite on the coldest night to a full system replacement, Gem City keeps your home warm — with honest assessments and no upselling.
- No heat? Get help now.
Local & Family-Owned
Licensed & Insured
Financing Available
Plumbing + Heating + Cooling
Heating Services From Gem City
Not sure exactly what you need? That’s okay — start here and we’ll point you in the right direction.
Furnace Repair
Fast, honest diagnosis and fixes for breakdowns big and small.
Furnace Installation
New system installs done clean, right, and up to code.
Furnace Replacement
When it's time to upgrade, we'll help you choose the right unit.
Furnace Maintenance
Tune-ups that keep your system efficient and catch issues early.
Emergency Heating Repair
No-cool emergencies get priority — call and we'll come running.
Sound Familiar?
We’ve seen every heating problem an Ohio winter can throw at you. Tell us what’s going on and we’ll give you a straight answer.
My furnace won't turn on
My furnace is making a strange noise
My furnace keeps turning on and off
My pilot light keeps going out
My thermostat isn't controlling the heat
My furnace is blowing cold air
My house isn't getting warm enough
My heating bills keep going up
My furnace runs but the house stays cold
My furnace smells odd when it runs
Repair or Replace?
We’ll lay out both paths honestly and let you decide. No pressure either way.
Repair It
A repair usually makes sense when your system still has good life left and the fix is straightforward.
- Your system is less than 10 years old
- It's a minor, isolated issue
- The repair cost is small relative to a new system
- Your energy bills have been steady
- It's been well-maintained over the years
Replace It
Replacement often pays off when your system is aging, inefficient, or repairs are becoming a habit.
- Your system is 10–15+ years old
- Repairs are adding up or becoming frequent
- Your energy bills keep climbing
- It struggles to keep up on the coldest days
- Some rooms never get warm enough
Straight Answers About Your Heating
Honest Recommendations
If your furnace just needs a straightforward repair, that's what we'll tell you — not push a new system.
Experienced Techs
GE Authorized, factory-trained technicians who know your equipment inside and out.
Local & Family-Owned
Born in Dayton. We're your neighbors, and we treat your home like our own.
Clear Communication
Plain explanations and upfront pricing before we touch a thing.
Financing Available
Flexible options so a new furnace doesn't wreck your budget.
Respect for Your Home
We show up prepared, communicate clearly, protect your home, and clean up when we're done.
- AUTHORIZED PRO
Factory-trained and authorized for GE heating and cooling installations.
GE Authorized. All Brands Serviced.
We’re a GE Authorized HVAC Pro — one of the few in the Dayton region. That means factory-trained, factory-backed installations. We also service and install every major brand, so whatever you have, we can help.
Carrier
Trane
Lennox
Rheem
Goodman
American Standard
York
GE
Simple From Start to Finish
Call Us
Tell us what your furnace is doing — or not doing. We answer the phone and dispatch fast.
We Diagnose
A licensed tech inspects your system and explains what's going on in plain language.
Honest Recommendation
We give you upfront pricing and lay out your options — repair, replace, or maintain.
We Fix It Right
Clean, professional service. We respect your home and clean up when we're done..
Comfort That Fits Your Budget
Replacing your heating or cooling system shouldn’t wreck your budget. Ask about flexible financing and current offers.
Flexible Financing Available
Spread the cost of your new HVAC system into manageable monthly payments.
Financing Special
HEATING & COOLING
0% for 60 Mo.
GE HVAC System Replacement
0% financing for 60 months on a complete GE HVAC system replacement.
No Cost, No Pressure
FREE QUOTE
Free
Replacement Quote
No-cost, no-pressure quote on your new heating or cooling system.
Heating Reviews From Your Neighbors
5.0 · Google Reviews
“Our furnace quit on the coldest night of January. Gem City had a tech out the same day, found a bad igniter, and had us warm again within the hour. No upsell, just an honest fix.”
Tom H.
Huber Heights, OH
Furnace Repair
“They replaced our old furnace with a new GE system and the whole process was smooth. The technicians were professional, explained how the new system worked, and left everything spotless.”
Karen B.
Kettering, OH
Furnace Installation
“Gem City has maintained our furnace for two winters now. Always on time, always honest. They caught a cracked heat exchanger during a tune-up before it became a safety issue. That’s the kind of service I want.”
Robert P.
Centerville, OH
Furnace Maintenance
Heating Service Across Greater Dayton
Based in Dayton and serving the surrounding Miami Valley. Not sure if we cover your area? Just call.
Dayton
Beavercreek
Kettering
Centerville
Huber Heights
Miamisburg
Springboro
Vandalia
Trotwood
Fairborn
Xenia
West Carrollton
Englewood
Oakwood
Troy
Piqua
Heating Questions, Answered
How do I know if my furnace needs repair or replacement?
If your furnace is over 10–15 years old, needs frequent repairs, or your energy bills keep climbing, replacement may make more sense. We’ll give you an honest assessment and show you the costs both ways — no pressure either direction.
How often should I have my furnace serviced?
We recommend a tune-up once a year, ideally in the fall before heating season kicks in. Regular maintenance keeps your system efficient and catches small issues before they become mid-winter breakdowns.
What size furnace do I need for my home?
It depends on your home’s square footage, insulation, windows, and layout. An oversized unit short-cycles and wastes energy; an undersized one runs constantly. We do a proper load calculation to size it right.
How long does a furnace last?
A well-maintained furnace typically lasts 15–20 years. Regular maintenance is the biggest factor in getting the full life out of your equipment.
Why is my furnace blowing cold air?
Common causes include a dirty flame sensor, a faulty igniter, low gas pressure, or a clogged air filter. It’s worth a service call — we’ll diagnose it and give you a straight answer.
How can I lower my heating costs?
A seasonal tune-up, a clean air filter, a programmable thermostat, and good insulation all help. If your system is older and inefficient, a replacement can cut your heating costs significantly.
Do you offer emergency furnace repair?
Yes. No-heat emergencies get priority and we offer same-day or next-day service depending on availability. Call us and we’ll get a technician to you as fast as we can.
Stay Warm. Straight Answers. Local Service.
Whatever’s going on with your heating, we’re ready to help — honestly and affordably.