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Generator Maintenance Membership

At GAC Services, we put your family’s comfort first, which is why we provide two options for our generator maintenance agreement to ensure your family is safe and comfortable all year round. 

You should service your generator at least twice a year to make sure it works when you need it the most. The average generator maintenance service appointment only takes an hour. Scheduling annual preventative maintenance appointments means you can rest assured that your generator will provide quality power throughout its service life. 

When you choose to enroll in our Prime Maintenance Membership, you receive: 

  • High-Performance Seasonal Tune-Ups – Recommended by generator manufacturers and utilities alike, seasonal checkups ensure that it will function properly when a power outage occurs. 
  • 10% Off Electrical Repairs – Our team of skilled electricians is experienced in everything from power outlet replacement to lighting installation and beyond. 
  • 20% Discount off HVAC – You will receive a 20% discount off the bottom line for our heating and cooling services for as long as your Prime Membership remains in effect. 
  • Emergency Service – As a Prime Member, you are our priority and jump to the head of the line when you call with an emergency. Your job will be scheduled ahead of others for routing and emergency calls. 
  • A Trusted Professional on Your Home Service Team – Our factory-trained and nationally certified technicians will care for your equipment and your home. 
  • Reduced Diagnostic Fee – Prime Members receive a reduced diagnostic fee. 
  • Satisfaction Guarantee – We promise your complete satisfaction – GUARANTEED! 
  • Relax, We’ll Contact You! – As a Prime Member, we make your equipment a top priority. We will contact you to schedule your seasonal system check via email and/or phone call, so you do not have to worry about it. 
  • Transferable – Your Prime Membership Agreement can either be transferred to your new home, or to the buyer of the home you are selling. Your choice. 
  • Monthly Newsletters – Stay informed with each season about heating, cooling, and electric services, diagnostic articles, money saving tips, and Members Only Offers. 


For trusted generator maintenance services throughout Maryland, trust GAC Services—call our team at (301) 205-5082 today! 

Generator Maintenance Membership

What’s Included in Our Maintenance Membership?

Our generator maintenance membership includes a 100% satisfaction guarantee designed for total peace of mind. You’ll feel comfortable knowing that your generator system was checked and serviced by a licensed electrician. Payment options have never been easier. You can choose to pay annually or monthly! 

You can read our Maintenance Terms and Conditions here. 


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Wondering why it’s important to keep your generator properly maintained? Here are some reasons why it’s important to schedule regular generator maintenance: 

  • It keeps things running smoothly 
  • It helps you save money 
  • It helps fueling 
  • It increases efficiency 
  • It gives your generator a longer lifespan 


Like any other engine-powered machine, standby generators require regular maintenance. Just like your car needs an oil change every 3 months or 3,000 miles, most generators need a maintenance check every 2 years or after 200 hours of use. 


Under this annual agreement, a licensed electrician from GAC Services will: 

  • Provide 2 visits per year 
  • Change oil and check for leaks 
  • Check starter motor and starting sequence 
  • Check electrical connections 
  • Check charging system and load test battery 
  • Inspect fuel line 
  • Inspect spark plugs, air filter, and oil filter 
  • Check muffler system for cracks and leaks 


Under this annual agreement, a licensed electrician from GAC Services will: 

  • Provide 2 visits per year 
  • Change oil and check for leaks 
  • Check starter motor and starting sequence 
  • Check electrical connections 
  • Check charging system and load test battery 
  • Inspect fuel line 
  • Inspect spark plugs, air filter, and oil filter 
  • Check muffler system for cracks and leaks 


Investing in annual preventative maintenance can save you money on costly repairs. It can also help you avoid needing to upgrade or replace your generator in the future. 

Our generator maintenance agreement customers also receive priority service and 10% discount on non-warranty parts and labor. 

Don’t wait until emergency strikes to make sure that your generator is functioning properly—by then, it could be too late! 

Call us at (301) 205-5082 today to schedule a preventative maintenance appointment or contact us online to learn more. 

Maintenance Agreement Terms: GAC Services agrees to provide the maintenance services described above for the period commencing upon payment of the charges set forth above and continuing for the one year. The agreement will renew automatically for additional terms of one year each unless terminated by written notice at least 30 days prior to the end of the then current Term. This agreement covers only routine maintenance services specified above. All required parts and additional labor not covered by Manufacturer’s warranty will be supplied at additional cost. All work will comply with Manufacturer’s guidelines and be performed in a professional manner and GAC Services agrees to correct any non-confirming services provided hereunder promptly. GAC Services disclaims all other warranties, express or implied. Customer agrees that in no event shall GAC Services be liable for indirect, consequential, special, exemplary, or incidental damages of any kind arising out of this agreement. GAC Services is not responsible for improper use or generator malfunction. 


“What do our customers want?” That’s the question that’s been driving the way we do business at GAC from the very beginning—back when you might have known us as Gaithersburg Air Conditioning & Heating!

While our name may have changed, the way we do business hasn’t. 

Up-front pricing. 100% satisfaction guarantee. On-time service. Factory trained and nationally certified technicians. Respect for your home.

These are just a few reasons why your neighbors love working with GAC. It is this commitment to excellence, along with our friendly and honest professionals that has helped us satisfy tens of thousands of customers throughout Maryland over the years. And it is this that we consider the GAC difference. Contact us to schedule service today. We provide generator maintenance agreements in Frederick, Gaithersburg, and surrounding areas in Maryland.We’re looking forward to serving you and hopefully making you a customer for life! 

Join GAC's Prime Maintenance Membership

Financing Options Available

At GAC, we understand how important a functioning HVAC system is for your home. This is why we offer flexible financing options to help you take care of your new HVAC purchase, so you can get back to taking care of what matters most to you.

Priority Maintenance

A well-maintained HVAC system can save you from having to invest in costly repairs down the road. Learn more about the priority maintenance services offered by GAC Services.