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HVAC & Plumbing in Marietta, GA: The Knights of Comfort Have Arrived

Protecting your Marietta "Castle" with Integrity, Speed, and the Guardian Knight Code.

Are you tired of "Big Box" HVAC companies that treat you like a number? At Guardian Home Experts, we've officially planted our roots in Cobb County. Our new Marietta office at 3660 Canton Rd Suite 200 is staffed by local experts who live, work, and breathe Georgia air. Whether your AC died in the middle of a July heatwave or your water heater is flooding the basement, the Knights are just a phone call away.

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The Guardian Knight Code: Why Marietta Trusts Us

We don't just fix pipes and wires; we uphold a standard of service that is rare in the trades today. Our Knight Code is our promise to you:

  • Honesty Above All: We provide transparent, upfront pricing. No hidden fees, no "surprise" upsells.

  • Technical Precision: From Load Calculations to SEER2 compliance, we do the engineering work that others skip.

  • The Shield of Protection: Every installation is backed by our industry-leading warranties and a 100% satisfaction guarantee.

  • Community Integrity: We are family-owned and locally operated. When you call us, you're talking to a neighbor, not a corporate call center.

Why Guardian Home Experts Is Marietta's Trusted HVAC Company

  • ✔ Locally owned & family-operated — not corporate or PE-backed

  • ✔ Same-day & next-day service available in most of Acworth

  • ✔ Upfront, honest pricing — no surprise fees

  • ✔ Award-winning team with thousands of verified 5 star reviews

  • ✔ Free estimates on new HVAC systems & Water Heaters

  • ✔ Financing options as low as $99/month

  • ✔ We install & service American Standard, Daikin, Rheem, Goodman, and all major brands

  • ✔ Backed by the Guardian Knight Code:
    Quality Work • Quick Service • Exceptional Value

Marietta homeowners deserve a company that treats them right — and Guardian does exactly that.

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Guardian Home Experts mascot Knightly with AC unit in marietta,ga

Heating

Heating

From heating tune-ups in Marietta to installing new furnaces, our expert team delivers 5-star heating and air services. Regular maintenance is essential to keep your heating system running smoothly and safely, preventing unexpected breakdowns. Here are some other heating services we offer at Guardian:
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Air Conditioning

Air Conditioning

At Guardian Home Experts, our goal is to keep you cool and comfortable throughout the entire season. If your AC is blowing warm air or has stopped working completely, our skilled team can handle any issue with any make or model of HVAC system. Regular maintenance on your air conditioner ensures your freon levels are just right and your system runs efficiently all season long. The air conditioning services we offer include:
More About Air Conditioning Services

Plumbing

Plumbing

Drinking clean, pure water is essential, and we’re here to help with water filtration and softener installation services in Marietta, GA. If your water heater stops working, don’t worry—our experts will quickly install a new one, ensuring your home stays comfortable with a top-notch warranty to protect your investment.
Plumbing Facts

Smart Home

Smart Home

A connected home is a smarter home. With Guardian’s expert smart home services, you can easily monitor your home right from your fingertips. Boost your HVAC efficiency and safety by installing a variety of connected home options. Our experts can review functionality with you:
Stay Connected

Insulation

Insulation

Take a look in your attic. If you can see the floor joists, you probably need more insulation. Over time, insulation can settle and lose much of its effectiveness. This can create hot and cold spots in your home and raise your energy bills. At Guardian, we use only top-quality products and provide Marietta homeowners with blown attic insulation backed by a Limited Lifetime NO SETTLE Warranty. Schedule your free in-home estimate for attic insulation today!
Comfort with Insulation

Indoor Air Quality

Indoor Air Quality

The air quality in your home plays a big role in your health and comfort. Good airflow not only keeps you comfortable but also helps your HVAC system run more efficiently. If you notice hot or cold spots around your house, we can help fix that. Whether it’s ductwork, zoning, UV lights, or hospital grade air purifiers, we make sure your air feels fresh and clean!
Breathe Cleaner Air
Knight popping out left

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Save up to $500 with a Free Estimate

5-Star HVAC Services in Marietta & Kennesaw

Expert HVAC Solutions Our licensed technicians provide "Knight-Speed" service to keep your castle cool in the summer and cozy in the winter.
AC Repair & Maintenance: Fast diagnostics and expert repairs for all major brands to beat the Georgia heat.
High-Efficiency Installations: Upgrade to the latest 2026 energy-saving systems—engineered for peak performance and lower utility bills.
Indoor Air Quality: Specialized solutions to combat Georgia pollen, pet dander, and stagnant humidity.
The $500 "Meet or Beat" Guarantee: Have a quote from another Marietta or Cartersville contractor? Send it to our team at the Canton Rd or Old Mill Rd office. If it's a comparable system, we will meet or beat their price by up to $500.
🚰 Precision Plumbing Services A plumbing emergency can't wait. Our Marietta and Cartersville-based plumbers are ready to deploy at a moment's notice.
Water Heater Repair & Replacement: Traditional and tankless solutions to ensure your showers stay hot and your system stays efficient.
Drain Cleaning & Hydro-Jetting: Clearing the toughest clogs in Cobb and Bartow Counties using industrial-grade technology.
Leak Detection: Protecting your home's foundation and your wallet from hidden water waste and costly damage.
Sump Pumps & Sewage Ejectors: Keeping your basement dry and protected during those heavy Georgia thunderstorms.

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A Guardian Home Experts technician servicing a Bentwater homeowner

Start Saving!

FREE HVAC Service Call Fee

Save $87!

$87 service call fee is Free with $250 same day repairs for new Guardian customers!

EXP 04/30/2026

Some restrictions may apply. Not to be combined with any other offers or discounts. Residential Only. New Customer Offer. Coupon must be presented at the time of service.

$500 OFF + FREE WATER HEATER UPGRADE

  • $500 OFF your new water heater installed
  • FREE 40 to 50 gallon tank upgrade
  • FREE Expansion Tank

EXP 04/30/2026

Some restrictions may apply. Not to be combined with any other offers or discounts. Residential Only. Coupon must be presented at the time of service. Upgrade is dependent upon installation site space.

Up to $1500 Rebate When You Buy a New HVAC System

Estimate today, Install tomorrow. No Money Down. 1 year Shield Protection Maintenance plan included with installation. Get up to a $1500 instant rebate from Guardian when you buy a new HVAC system with payments as low as $99 Month. No Catch! Call for Details.

EXP 04/30/2026

Present this coupon to your System Designer at the time of estimate. Residential only. Not combinable with any other offers or discounts. Some restrictions may apply. Financing options require credit approval. Offer specific to options chosen and qualifying systems. While Supplies last.
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Some Words From
Our Customers

“I can’t speak more about how great Guardian is to work with. Their team is always friendly and I never feel like they are pushing services on me that I don’t need. Every question that I asked was answered and explained, so I can make my final decision. We’ve used a number of companies and finally found our forever home service company. ”

- Jeff H.

"We just had our fall maintenance check by Robert. He was friendly, efficient and thorough. We have been very pleased with the service provided by Guardian, and just renewed our maintenance contract. Great folks."

- Kyle M.

“We were not thrilled to have to replace our 2 HVAC units because we knew the cost and time was going to be an inconvenience. After several quotes, we chose to go with Guardian. It was a big investment and I felt like I invested in the right people. The whole process was easy and they communicated well. Their pricing was very reasonable for the great service we received! ”

- Joe K.

"If you're looking for a company that cares about you and your home, Guardian is the right company. We've used a few others over the years and they always made us feel like we were just another dollar. Guardian has always taken the time with us in the home and are so easy to work with. Kindness, knowledge and respect goes a long way, and they provide it!"

- Kathy R.

“We had a clogged drain line that caused us a headache. I’ve never had to use a plumber before and wasn’t sure who to call. A friend told us about Guardian and we had a great experience with them. We opted to get a home plumbing inspection and found a few other trouble spots. Good thing because we had a “pin hole leak” in a pipe that could have caused a ton of damage!”

- Barbara B.

"Guardian and its technicians are truly a pleasure to work with. I have dealt with many HVAC providers in the past for a host of service requests but I have eventually found a company that has earned my trust through some exceptional technician quality, work ethics, and affordable pricing."

- Nikhil G.

Why Marietta Homeowners Choose Guardian

Marietta is on of Atlanta's fastest- growing suburbs. With growth comes demand for trustworthy home-service companies.

Guardian stands out because we combine local values with top-tier expertise. Our Knight Code assures homeowners that the only thing you will receive is the highest quality worked served with integrity not pressure.

You'll love working with us because:

  • We treat you like family - not a transaction
  • The Shield of Transparency: No hidden 'lake-area' markups. We use flat-rate pricing every time.
  • The Armor of Upfront Pricing: You see the price before the wrench ever touches the pipe.
  • The Vow of Technical Mastery: Our Knights are trained to handle everything from historic 1920s cottages to the complex smart-home systems in Governors Towne Club.
  • We fix problems right the first time
  • We stand behind our work with great warranties
  • Our experts are trained, certified and background checked

Guardian is the local company with big-company capability - without the big company attitude and over pricing.

We proudly serve all these neighborhoods in Marietta and surrounding areas:

Located at 3660 Canton Rd Suite 200, Marietta, GA 30066, we are perfectly positioned to serve:

  • North Marietta & Canton Road Corridor

  • East Cobb & Johnson Ferry Area

  • Kennesaw, Roswell & Noonday Park

  • Blackwell & Piedmont Road Neighborhoods

Frequently Asked Questions

Where is the Guardian Home Experts Marietta office located?

We are located at 3660 Canton Rd Suite 200, Marietta, GA 30066, just north of the Blackwell Rd intersection.

Do you offer emergency HVAC repair in Marietta?

Yes! Our phones are live for both HVAC and plumbing 24/7 to ensure your home remains safe and comfortable.

Will you really beat a competitor's quote?

Absolutely. It's part of our commitment to integrity. If you have a written estimate from a licensed Marietta contractor, we'll audit the specs and meet or beat the price by up to $500.

Do you offer financing for new AC, Furnace, or Plumbing Installations?

Yes! We have a variety of options to suit your budget and repayment needs. From low monthly cost, extended term, or zero percent financing, paying for large projects are a breeze.

What HVAC brands do you install?

American Standard, Rheem, Daikin, Goodman and more...

Do you offer free estimates?

Yes! All new HVAC, water heater, water filtration, remodels, and whole home repipes are 100% free.

Are there specific Marietta water issues you fix?

Many Marietta residents experience high mineral content. We specialize in water softeners and filtration systems designed to handle the specific water profile of Cobb, Cherokke and Bartow County lines.

Can I get a rebate for a new furnace in Marietta?

Absolutely. We stay up-to-date on Georgia Power, Cobb EMC and local utility rebates to make sure you save the maximum amount on your high-efficiency upgrade.

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