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!

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FREE Plumbing Service Call

FREE Plumbing Service Call

Valid Monday through Friday 8am to 5pm. Can not be combined with other coupons or discounts. Other restrictions may apply.
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$25 OFFAny Repair

$25 Off Any Repair

AC, Heating, Plumbing or Electrical
Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.
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$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.
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$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.
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FREEWater Testing

Water Treatment Financing & Free Water Quality Test

Free Water Quality Test & Estimate for Water Treatment $75 Off and 12-Month Special Financing on New Water Treatment Systems
Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.
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SAVEOn Drain Clearing

$98.00 Main Drain Line Clearing

Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Only available on accessible cleanouts at ground level. Other restrictions may apply.
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