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!
$50 Off LED Lighting Upgrade
Must present coupon. Cannot be combined with other coupons--one per visit.
$50 Indoor Air Quality Products
Must present coupon. Cannot be combined with other coupons--one per visit.
$100 Off New Tankless or Hybrid Water Heater Installed
Must present coupon. Cannot be combined with other coupons--one per visit.
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
Must present coupon. Cannot be combined with other coupons--one per visit.
$100 Off Generator
Generac Guardian Series Generator & Installation
Must present coupon. Cannot be combined with other coupons--one per visit. Offer expires 11/15/2018.
$39.95 77-Point AC Cleaning & Checkup
6-Month Guarantee
Must present coupon. Cannot be combined with other coupons--one per visit. Offer expires 7/6/2018.
FREE Generator Estimate
Must present coupon. Cannot be combined with other coupons--one per visit.
FREE Air Conditioning Estimate
Must present coupon. Cannot be combined with other coupons--one per visit.
FREE Water Quality Test & Estimate for Water Treatment
Must present coupon. Cannot be combined with other coupons--one per visit.
$50 Off New Water Heater Installation
Must present coupon. Cannot be combined with other coupons--one per visit. Offer expires 7/6/2018.
$75 Off & 0% Financing for 18 Months
New 15 SEER or Higher AC System, with approved credit
Must present coupon. Cannot be combined with other coupons--one per visit. Offer expires 7/6/2018.
$39.95 Service Call
Air, Plumbing, or Electrical. Mon-Fri 7am-7pm
Must present coupon. Cannot be combined with other coupons--one per visit. Offer expires 4/6/2018.
$75 Off
Water Treatment System.
Call for a free estimate!
Must present coupon. Cannot be combined with other coupons--one per visit. Offer expires 7/6/2018.
$33 Off
Any Plumbing, Electrical or AC Repair Over $300
Must present coupon at time of service. Cannot combine with other coupons.
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.
No Interest if Paid in Full Within 18 Months
Minimum purchase of $2,500 required.
Special terms apply to qualifying purchases of $2,500 or more charged with approved credit. Minimum monthly payments are required during the promotional (special terms) period. Interest will be charged to your account from the purchase date at the APR for Purchases if the purchase balance is not paid in full within the promotional (special terms) period. Paying only the minimum monthly payment will not pay off the purchase balance before the end of the promotional period. For new accounts, the APR for Purchases is 28.99%. If you are charged interest in any billing cycle, the minimum interest charge will be $1.00. This information is subject to change.
Interest will be charged to your account from the purchase date if the purchase balance is not paid in full within the promotional period. Must present coupon at time of service. Cannot combine with other coupons. Offer expires 1/31/2019.
