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Coupons & Special Offers

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 Camera Plumbing Inspection w/ Paid Drain Clearing

Free Camera Plumbing Inspection With Paid Plumbing Drain Clearing ($250 Value)

Must be an accessible clean out.
Offer expires 5/31/22. 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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$300 OffEnergy-Efficient Upgrade

$300 Off Energy-Efficient Combo Deal

Save $300 when you upgrade to both a more efficient AC system and a tankless water heater!
Offer expires 5/31/22. 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 OffEnergy-Efficient Upgrade

$150 Off Energy-Efficient Combo Deal

Save $150 when you upgrade to both a more efficient AC system and a traditional water heater!
Offer expires 5/31/22. 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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$30 OffElectrical Service Repair

$30 Off Electrical Service Repair

Cannot be applied to diagnostic fee or service fee.
Offer expires 5/31/22. Coupon must be presented at time of visit. One coupon per household. Other restrictions may apply.
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$40 OffIAQ Product

$40 Off IAQ Product

Offer expires 5/31/22. 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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$49Electrical Panel Safety Inspection

$49 Electrical Panel Safety Inspection

(Regular Price $99)
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.
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$29.95Service Call or Tune-Up

$29.95 Service Call or Tune-Up

Monday - Friday only.
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.
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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.
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$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.
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$49.95Plumbing Tune-Up

Plumbing Tune-Up and Water Heater Inspection & Flush

Just $49.95 for a plumbing tune-up with water heater inspection and flush!    
Coupon must be presented at time of estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply. Excludes tankless water heaters. This coupon is not available to landlord/tenant homes or to customers with a home warranty.
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$25 OFFAny Repair

$25 Off Any Repair

AC, Heating, Plumbing or Electrical
Must present coupon. Cannot be combined with other coupons--one per visit.
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NEW ACDiscount or Financing

$150 Off OR 18-Month (in Lieu of 12-Month) Special Financing

On New 15 SEER or Higher AC System, with approved credit
Coupon must be presented at time of purchase and cannot be applied to prior work. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.
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FREENest Thermostat

Free Nest Thermostat With Any AC Replacement

16 SEER single-stage system only
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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$100 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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SAVEOn Whole-Home Generator

$150 Off and 18-Month (in Lieu of 12-Month) Special Financing on a Whole-Home Standby Generator

Get a free estimate today!

With approved credit
Coupon must be presented at time of purchase and cannot be applied to prior work. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.
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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.
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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.
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