Cornerstone Mechanical HVAC

Cornerstone Mechanical HVAC Residential & commercial HVAC install, repairs and maintenance. We also do water heaters, ductwork mods & mini-split installs. 15+ years mechanical experience.

Serving Chester County, PA and beyond. Give us a call today!

Another upgrade, another happy client!Let’s face it, HVAC isn’t always a “fun” home improvement project. It’s not someth...
05/16/2026

Another upgrade, another happy client!

Let’s face it, HVAC isn’t always a “fun” home improvement project. It’s not something shiny and new you can show off to your friends and family. But when you step into your comfortable, cool home to get out of scorching summer heat… you’ll be smiling! 😎



It’s heating up out there and already putting AC units to the test. How is yours holding up? If it’s not cooling like it...
04/15/2026

It’s heating up out there and already putting AC units to the test. How is yours holding up?

If it’s not cooling like it should, give us a call for fast, friendly, professional service!

Call or text owner Tim Annan directly📲 (484) 266-9077

Gotta teach them young 🥲😂
04/14/2026

Gotta teach them young 🥲😂



Monday Reminder ‼️Change your filters on time & it’s time to schedule your AC maintenance for the Spring. Looking at som...
04/13/2026

Monday Reminder ‼️

Change your filters on time & it’s time to schedule your AC maintenance for the Spring. Looking at some 80 degree days this week… the heat is on its way!

Want a better deal & peace of mind? Ask about our annual maintenance plan 😃

Message, call or text to schedule 📲 484-266-9077

We not only relocated this clients outdoor unit off and away from the deck… we replaced it with a whisper-quiet Bosch! I...
04/10/2026

We not only relocated this clients outdoor unit off and away from the deck… we replaced it with a whisper-quiet Bosch!

If you have an older system that’s due for an upgrade, let’s talk! Cornerstone provides free, zero-pressure consultations that take your needs and budget seriously. No awkward “sign today for this price” convos 🫠



Woke up 12, now at 3. You? 😂
03/27/2026

Woke up 12, now at 3.

You? 😂

Thank you for trusting us with your home’s heating & cooling system. As a family-owned and operated business, we take gr...
03/20/2026

Thank you for trusting us with your home’s heating & cooling system. As a family-owned and operated business, we take great pride in delivering high-quality workmanship with honesty and care. We don’t believe in sales gimmicks or unnecessary upselling—just straightforward, reliable service you can count on. Serving the same community we call home, our commitment to our customers and neighbors is the foundation of everything we do.

(Our family enjoyed a warm getaway before the busy season begins! 🏝️ ☀️ 🌊)

If your condenser looks like this… you need A/C maintenance! Regular maintenance = breakdown prevention Get on our sched...
03/18/2026

If your condenser looks like this… you need A/C maintenance!
Regular maintenance = breakdown prevention

Get on our schedule now & have a worry-free Summer! Call, text or message us on FB 📲 (484) 266-9077

This is who runs Cornerstone… 🤗😅
03/13/2026

This is who runs Cornerstone… 🤗😅





😎😎😎
03/09/2026

😎😎😎

Address

906 Copeland School Road
West Chester, PA
19380

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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