Keystone Comfort Heating & Air has served Glen Mills homeowners for over 15 years — licensed, insured, and owner-operated by Tom Reiner. Free estimates on every job.
Glen Mills' larger newer homes bring zoning and comfort-balancing challenges — two-story foyers, bonus rooms, and finished basements that never feel right until the system is designed properly.
Whether it’s an urgent repair or a project you’ve been planning for months, you get the same deal every Glen Mills customer gets: a clear written estimate up front, work done to current code, and a job site left cleaner than we found it.
We’re local — based in Media — so response times in Glen Mills are fast, and we know the housing stock, the inspectors, and the quirks of the area’s homes.
✓ Licensed & insured in Pennsylvania
✓ 15+ years serving Delaware County
✓ Owner on every job — no rotating crews
✓ Free written estimates
✓ 5.0-star rated on Google, Nextdoor & Angi
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 →Yes — Keystone Comfort Heating & Air serves all of Glen Mills and the immediate surrounding area. We're based in Media, so Glen Mills is squarely inside our everyday service zone.
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.
Call Keystone Comfort Heating & Air — serving Glen Mills and all of Delaware County with free estimates and 15+ years of experience.