Save up to 60% on Heating Bills
Claim up to $2000 tax credit (Ends 12/31)
Enjoy Perfect Temperature Every Corner
Save up to 60% on Heating Bills
Save up to 60% on Heating Bills
Claim up to $2000 tax credit (Ends 12/31)
Enjoy Perfect Temperature Every Corner
Save up to 60% on Heating Bills
237+ Reviews
ENERGY SAVINGS CONSULTATION
ENERGY SAVINGS CONSULTATION
ENERGY SAVINGS CONSULTATION
ENERGY SAVINGS CONSULTATION
$189 FREE
$189 FREE
$189 FREE
Only for frederick county
See how much a heat pump could save you. Get a personalized savings estimate and lock in rebates before they expire.
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Up to 60% lower heating bills
Up to 60% lower heating bills
Up to 60% lower heating bills
Up to 60% lower heating bills
WHISPER-QUIET FOR BETTER SLEEP
WHISPER-QUIET FOR BETTER SLEEP
WHISPER-QUIET FOR BETTER SLEEP
WHISPER-QUIET FOR BETTER SLEEP
all repairs covered for up to 12 yrs
all repairs covered for up to 12 yrs
all repairs covered for up to 12 yrs
all repairs covered for up to 12 yrs
What's Included
What's Included
What's Included
What's Included
Guarantees
Guarantees
Guarantees
Guarantees
Rescheduling & Cancellation
Rescheduling & Cancellation
Rescheduling & Cancellation
Rescheduling & Cancellation
Customer Reviews
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
“Angel & Nick were extremely helpful & prompt. Weren’t trying to sell me anything, were sincerely only interested in fixing my problem according to my needs.” Read on Google
Billy Edwards
“Very pleasant experience! They are very knowledgeable and professional. During my appointment they walked me through all code problems and educated me on everything they found. I would definitely recommend!” Read on Google
Brian Bushey
“AC shut down so I put in a request with AHS. Sean showed up on time and fixed the issue quickly. Thankful for the quick fix and information he provided me. Hopefully I can prevent this issue in the future.” Read on Google
Joe McFadden
Why GSSN's In-Home Consultation?
Why GSSN's In-Home Consultation?
Why GSSN's In-Home Consultation?
FAQs
FAQs
FAQs
FAQs
How does GSSN design the "perfect match?"
How does GSSN design the "perfect match?"
How does GSSN design the "perfect match?"
How does GSSN design the "perfect match?"
Why is it $0 instead of $189?
Why is it $0 instead of $189?
Why is it $0 instead of $189?
Why is it $0 instead of $189?
What happens after I get my perfect-fit options?
What happens after I get my perfect-fit options?
What happens after I get my perfect-fit options?
What happens after I get my perfect-fit options?
What if I don't like any of the options?
What if I don't like any of the options?
What if I don't like any of the options?
What if I don't like any of the options?
Certified by the best in our industry
Certified by the best in our industry
Certified by the best in our industry
Certified by the best in our industry
Why Frederick County Trusts GSSN with Their Homes
A veteran, family-owned business since 2009, we’ve earned the trust of our neighbors in the county — not through fancy marketing, but by treating every home like it’s our own.
A veteran, family-owned business since 2009, we’ve earned the trust of our neighbors in the county.
We Show Up On Time
Our team calls ahead, arrives on time, and gets the job done right. No more waiting around.
Your Home Stays Pristine
Drop cloths, boot covers, and a thorough cleanup. You'd never know we were there.
Straight Talk, Fair Prices
We explain what's wrong in plain English. No pressure, no invented problems. If it's a simple fix, we'll tell you.
Real Experts
Factory-trained techs who actually know what they're doing. No guesswork, no YouTube repairs.
© OpenStreetMap contributors
© OpenStreetMap contributors
© OpenStreetMap contributors
Service Area
Service Area
We're Laser-focused on Frederick County
We're Laser-focused on Frederick County
By staying local, we guarantee fast, reliable service and deep familiarity with the homes and systems in our area.
That’s how we can get to any home in 4 hours or less.
Our expert technicians are laser-focused on Frederick County — serving only our local neighbors and families.
That’s how we can get to any home in 4 hours or less.
Our expert technicians are laser-focused on Frederick County — serving only our local neighbors and families.
That’s how we can get to any home in 4 hours or less.
Your Home Deserves the Most
Trusted Name in Heating & Cooling
Your Home Deserves the Best
Need a new system? Don't worry. GSSN is a proud Daikin Comfort Pro, meaning you get the #1 HVAC system, trusted by millions of homeowners.
They are the pioneers in HVAC, and the scientists behind YOUR perfect comfort.
Available 24/7, Including Weekends
© 2025 GSSN Heating & Cooling, All Right Reserved. Privacy Policy Terms of Use
Available 24/7, Including Weekends
© 2025 GSSN Heating & Cooling, All Right Reserved. Privacy Policy Terms of Use
Available 24/7, Including Weekends
© 2025 GSSN Heating & Cooling, All Right Reserved. Privacy Policy Terms of Use
Available 24/7, Including Weekends
© 2025 GSSN Heating & Cooling, All Right Reserved. Privacy Policy Terms of Use