Air Conditioning, Heating, Plumbing, and Electric Savings Coupons

Save Big with Online Deals

At Cornerstone, your budget is a priority—so we provide competitive pricing that delivers on value. To save even more, choose one of the offers below and present it to your Cornerstone technician. Thank you for entrusting your comfort to us!

FREEEstimate

FREE Air Conditioning or Heating Estimate

+ $150 off installation!

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.

$49Emergency Call

$49 Emergency Service Call

HVAC or Plumbing. Mon-Fri 8am - 8 pm

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply. This coupon is not available to landlord/tenant homes or to customers with a home warranty.

$25 OFFAny Repair

$25 Off Any Repair

AC, Heating, Plumbing or Electrical

Must present coupon. Cannot be combined with other coupons--one per visit.

$50 OFFNew LED Lights

$50 Off LED Lighting Upgrade

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.

$150 OffTankless, Hybrid Water Heaters

$150 Off New Tankless or Hybrid Water Heater Installed

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Does not apply to customer supplied products. Other restrictions may apply.

FREEWater Testing

FREE Water Quality Test & Estimate for Water Treatment

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.

SAVEOn Water Treatment

$75 Off and 12-Month Special Financing on New Water Treatment System

Get a free estimate today! With approved credit

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.