Offers | Coupons & Specials | On The Mark

Offers

Proudly Family-Owned and Operated

Service Offer

$35 Off Any Service

Enjoy $35 off any service of your choice when you spend $250 or more!

Expires 03/31/26.

Some exclusions may apply. Call for details.

Heating Offer

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$89 Second Opinions

On Cracked Heat Exchangers

Expires 03/31/26.

Some exclusions may apply. Call for details.

Indoor Air Quality

$89 Join The Waitlist Special

Plan ahead and schedule with our expert Indoor Air Quality Analyzers for a whole home indoor air quality assessment.

Expires 03/31/26.

Get your air tested for only $89 and receive a full report.

Financing

0% Financing for 12 Months

Same as cash!

*upon credit approval

5 Star Rating | 900+ Google Reviews

Hear from your neighbors about our heating, cooling and indoor air quality services in Schaumburg, IL.

Ready for 5-star service from On the Mark?

Let Us Take It From Here.

Customer scheduling appointment with On the Mark on phone
1.

Step 1. Book Your Appointment

Call us and a real person picks up, every time. You'll get a confirmation text right after booking, plus a reminder 24 hours before your appointment so nothing slips through the cracks.
On the Mark provides customer with all information they need
2.

Step 2. We Come to You

When your tech is heading your way, you'll get a text with their photo and a short bio so you know exactly who's coming. They'll show up on time, keep your home clean, and walk you through everything they find before any work begins.
Satisfied On the Mark customers waving goodbye after service
3.

Step 3. Job Done, You're in the Loop

Once the work is complete, you'll get a full summary of everything that was done sent straight to your phone and inbox. Clear, simple, and documented so you always know what was done and why.

Serving Schaumburg & Surrounding Area

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