Furnace out in January or AC dead in July — Keystone Comfort has kept Delaware County homes comfortable for 15 years. Owner-operated by Tom Reiner, NATE-certified and straight with every estimate.
From urgent repairs to full projects, Keystone Comfort Heating & Air handles it all with 15+ years of hands-on expertise across Delaware County.
When your air conditioner is past saving, we replace it with a properly sized, correctly charged system — installed by the book so it hits its rated efficiency from day one.
Learn More → HeatingNo heat is an emergency in a Pennsylvania winter. We diagnose fast, repair honestly, and replace only when repair stops making financial sense.
Learn More → Heating + CoolingOne system for heating and cooling, room-by-room control, and serious efficiency — we design and install ducted heat pumps and ductless mini-splits across Delaware County.
Learn More → Heating + CoolingThe best equipment can't overcome bad ductwork. We seal, repair, resize, and replace ducts so the comfort you pay for actually reaches every room.
Learn More → Heating + CoolingA $150 tune-up beats a $1,500 breakdown. Seasonal maintenance keeps your warranty valid, your bills lower, and your system out of the emergency queue.
Learn More → Heating + CoolingAllergies acting up indoors, dust that comes right back, dry winter air — we solve air quality problems at the system level, not with gadgets.
Learn More →Keystone Comfort Heating & Air is owned and operated by Tom Reiner, a NATE-certified HVAC technician with 15 years in Delaware County attics, basements, and crawlspaces. We're not a franchise with a sales quota — we're a local shop that fixes what can be fixed and replaces what can't.
We size equipment by the math, not by what's on the truck. We show you the readings, explain your options in plain English, and stand behind every install with a real workmanship warranty.
“Two companies told me I needed a whole new system. Tom found a failed capacitor, fixed it for under $300, and told me the truth: the unit's got years left. Guess who's replacing it when the time comes.”
— S.B., via Nextdoor
Get A Free EstimateKeystone Comfort Heating & Air provides expert residential heating and cooling services throughout Delaware County and the surrounding areas.
Don’t just take our word for it — here’s what Delaware County homeowners are saying.
“Furnace died during that cold snap in January. Tom was here the same morning, had the part on the truck, and charged half what the big company quoted me just to show up.”
“Two companies told me I needed a whole new system. Tom found a failed capacitor, fixed it for under $300, and told me the truth: the unit's got years left. Guess who's replacing it when the time comes.”
“New heat pump install was flawless. Showed up when he said, finished when he said, and the house has never been this even room to room.”
We serve all of Delaware County, including Media, Springfield, Drexel Hill, Broomall, Havertown, Glen Mills, and the surrounding areas. If your town isn't listed, call — we probably cover you.
Yes — free estimates on all replacements and installations. Diagnostic visits for repairs carry a standard trip fee that's credited toward the repair if you move forward.
Fully licensed and insured in Pennsylvania, with NATE-certified technicians and EPA refrigerant certification. We pull permits whenever the job requires them.
Yes. No heat in winter and no cooling during a heat wave are emergencies, and we treat them that way. Call (484) 555-0178 and we'll get you on the schedule fast.
Our rule of thumb: if the repair costs more than a third of replacement and the unit is past 12 years old, replacement usually wins. We'll put both numbers in front of you and let the math decide — no pressure either way.
Twice a year — cooling in spring, heating in fall. Regular maintenance keeps manufacturer warranties valid, catches small failures before they strand you, and typically pays for itself in energy savings.
Let Keystone Comfort Heating & Air handle it so you can get back to what matters. Licensed, insured, and trusted by your Delaware County neighbors for over 15 years.
Tell us what you need and we’ll get back to you fast — usually the same day. Prefer to talk? Call or text anytime.