Honest Pricing. No Gimmicks. No Coupons.
Because you shouldn't have to scramble for a coupon just to get a fair price.
For over 39 years, the Downing family has built GSMS on a simple foundation: Integrity. We’ve all been there—trying to dig up a coupon or find a promo code, only to be told "you should have mentioned that sooner." At GSMS, we don't believe in "gotcha" pricing or hidden discounts. We don’t inflate our rates just to offer a temporary coupon. When a GSMS Specialist enters your home, you receive our best and most honest price from the moment we arrive.
Lennox Spring Promotion
Up to $1,800 Off OR 0% Interest for 18 Months
Upgrade your home comfort with high-efficiency Lennox equipment and take advantage of limited-time seasonal savings. Choose the savings option that works best for you on qualifying Lennox systems.
Any Installation Financing
0% Interest for 18 Months
Available on any installation. Flexible financing options make it easier to invest in your home’s comfort, efficiency, and long-term savings. Get the comfort you need now and pay over time.
Up to $1,225 in Rebates
Take advantage of stacked local and regional rebate programs to maximize your savings. These rebates can be combined with manufacturer promotions and financing offers for maximum savings.
$650 instant rebate through NEHPA for qualifying Energy Star heat pumps
NHSaves rebates:
- $250 per cooling ton (heat pumps)
- $70 per cooling ton (AC systems)
Details
SELL BY: March 9, 2026 - June 12, 2026
INSTALL BY: June 19, 2026
SUBMIT CLAIMS BY: July 19, 2026
Rebate Disclaimer: Rebate requires purchase of qualifying items between March 9, 2026 and June 12, 2026 from a participating Lennox® dealer. Contact your local participating Lennox® dealer for promotion details. Qualifying items must be installed by June 19, 2026. This offer applies to residential installations only. Rebate claims must be submitted (with the Dealer's invoice to the homeowner listing all models and serial numbers) to www.lennoxconsumerrebates.com no later than July 19, 2026 11:59:59 p.m. ET. Rebate is paid in the form of a Lennox Prepaid Mastercard®. Use your card anywhere Mastercard is accepted. This card is issued by The Bancorp Bank, N.A., pursuant to license by Mastercard International. Mastercard and the circles design are registered trademarks of Mastercard International Incorporated. The Bancorp Bank, N.A.; Member FDIC. This is not a gift card. This card is issued for loyalty, award or promotional purposes. Please note that prepaid cards are subject to expiration, so pay close attention to the expiration date of the card. Conditions apply. See www.lennox.com/terms and-conditions for complete terms and conditions.
Financing Disclaimer: Offer available between March 9, 2026 and June 12, 2026. All applications are subject to credit review and approval. Not all applicants will qualify. Requires purchase of qualifying Lennox® system. No down payment required. If you qualify for this promotion ("Promotion") and elect to participate, Finance Charges (interest) will not accrue for the first twelve months (Promotional Period), and you will not be required to make payments during the Promotional Period. If you pay the entire amount financed on or before the last day of the Promotional Period (Promotional Expiration Date), you will not have to pay any Finance Charges. However, if you qualify and elect to participate in the Promotion and do not pay the entire amount financed on or before the Promotion Expiration Date, you will be charged Finance Charges starting the first day after the Promotion Expiration Date at an annual percentage rate (APR) of 11.95%, and the balance will be payable in 120 scheduled monthly payments of $14.30 per $1,000 of the amount financed. No prepayment penalties. Minimum and maximum amount financed of $3,000 and $100,000, respectively. Late charges may apply. Complete terms and conditions and Truth in Lending disclosures will be set forth in the Retail Installment Contract which you should review carefully.
Disclaimer: Lennox reserves the right to cancel or change this promotional offer at any time. By participating in this promotional offer, the dealer agrees to be responsible for compliance with the terms and conditions of this promotional offer, along with all applicable laws, rules, and regulations in connection with dealer’s participation.
The only way to receive a discount on our expert services is by joining the GSMS Home Club. We believe in rewarding loyalty, not just "one-time" shoppers.
- Member Benefits: 10% discount on all repairs, priority scheduling, and annual safety maintenance.
We believe a local business should be a pillar of the community. That’s why a portion of every service call we complete goes directly to a local NH non-profit through our We
