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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 Generator 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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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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$49 Emergency Service Call

Air, Plumbing, or Electrical. Mon-Fri 8am-8pm
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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Plumbing Tuneup and Water Heater Inspection & Flush

Just $49.95 for a plumbing tuneup 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.
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Plumbing Inspection

Only $29.95 to inspect your plumbing system. Have peace of mind that your water lines, pipes and drains are reliable.
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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Electrical Home Inspection

Only $50 to inspect your home electrical system. Ensure your family is safe.
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 Off Water Heater Replacement

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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$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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$250 Off OR 12-Month Special Financing

On New 15 SEER or Higher AC System, 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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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 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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$50 Off Indoor Air Quality Products

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 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. Other restrictions may apply.
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Free Estimates & Second Opinion

New AC system, Air quality inspection, Ductwork replacement, Water heater replacement, Plumbing whole-home repipe, Water treatment & purification, Electrical panel upgrade, Whole-home generator
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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$75 Off and 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 estimate. Cannot be combined with any other offers. One coupon per household. Other restrictions may apply.
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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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$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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Cash Rebate up to $1200 Instantly

Daikin Brand Energy Intelligent Indoor Comfort Equipment: 12-year warranty and 100% satisfaction guarantee
Applies to qualifying Daikin equipment. 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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