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four decades in gwinnett

Plumbing, Electric, Heating & Cooling in Duluth

Duluth homeowners call us for plumbing, electrical, heating and air conditioning, from Sugarloaf to Old Peachtree, with the price agreed first.

  • Local since 1985
  • Answered day or night
  • Upfront pricing
A Keep Smiling technician meeting a homeowner outside their house
the short version

Plumbing, Electrical, Heating & Air Conditioning in Duluth, GA

For more than four decades, Keep Smiling Plumbing, Electric, Heating and Cooling has helped Gwinnett County homeowners keep their houses running, and Duluth is a big part of that story. We handle plumbing, electrical, heating, and AC under one roof. That makes it easy to get help, whether it’s a burst supply line in Sugarloaf Country Club or a heat pump that quits on a February night near Old Peachtree. Our licensed technicians are background checked and drug screened. They walk you through what they find and give you honest options with a written price before any work begins.

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what’s covered

Duluth Plumbing Services

Keep Smiling opened as a plumbing company in 1985, and our plumbers still bring that experience to every Duluth home they visit. We fix leaking pipes and fixtures, install tank and tankless water heaters, and repipe older homes. We also handle gas line work, water filtration, and full drain and sewer service, including camera inspections. Before we recommend anything, we make sure we’ve found the true source of the problem. See our complete plumbing services lineup for more.

Signs You Need a Duluth Plumber

  • Your water meter keeps spinning when nothing in the house is running
  • Hot water turns lukewarm halfway through a shower
  • You hear a rumbling or popping sound from the water heater
  • Toilets bubble when the washing machine drains
  • Faucets sputter air or the water has a metallic taste
  • You find white crust or green corrosion on exposed pipe fittings

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the essentials

Advantages of Hiring a Licensed Plumber

  • Stop damage before it spreads: Water travels farther than you’d expect inside walls and floors, so a prompt repair can save cabinets, drywall, and flooring.
  • Cut wasted water and energy: A dripping fixture or an inefficient water heater adds up month after month, and fixing them puts that money back in your budget.
  • Fixes built to last: We solve the underlying problem rather than patching it, which means fewer repeat calls.
  • Warranty you can see: Our plumbing work is backed in writing, so you aren’t left guessing about coverage.
  • Smart upgrade choices: When a water heater is wearing out, we’ll compare tank and tankless options with you and help you weigh the long-term savings.

Common Plumbing Concerns in Duluth Homes

Much of Duluth’s housing went up in the 1980s and 1990s as the city grew along Peachtree Industrial Boulevard and Pleasant Hill Road. Homes from that period sometimes still have polybutylene supply lines. That gray plastic pipe breaks down over time and tends to fail at the fittings. Plenty of these houses are on their second or third water heater, and some original copper lines are starting to develop pinhole leaks. Closer to the Chattahoochee River, heavy rain and saturated clay soil can put extra pressure on sewer laterals. Mature hardwoods in established neighborhoods send roots into older pipe joints. Cold snaps are rare but sharp, and pipes in exterior walls and garages can freeze when temperatures plunge overnight.

A Keep Smiling electrician working on a wall outlet
what to watch for

Duluth Electrical Services

Our licensed electricians help Duluth homeowners with everything from flickering lights to full electrical overhauls. We upgrade and replace panels, repair faulty wiring, install lighting and outlets, add whole-home surge protection, and set up EV chargers. We also install and test smoke and carbon monoxide detectors. Because we’re a Generac dealer, we can recommend, install, and service a standby generator that turns on automatically during an outage. Explore our electrical services for the full list.

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in depth

Why Upgrading Your Electrical System Makes Sense

Signs Your Home’s Wiring Needs a Professional

  • Switch plates feel warm to the touch
  • You hear a faint buzzing or crackling from outlets
  • Your home still has a fuse box or a Federal Pacific panel
  • Bathroom and kitchen outlets don’t have GFCI protection
  • Lights flicker on windy days or when appliances cycle
  • Power strips are plugged into power strips just to get by

A lot of Duluth homes are running decades-old electrical systems while asking them to do much more. An upgrade brings your home in line with how your family lives now.

  • Reduced fire hazards: New breakers and updated wiring take some of the most common fire risks out of your walls.
  • Capacity for what’s next: An upgraded panel makes room for an EV, a home gym, or a kitchen remodel.
  • Protection from storm surges: Whole-home surge protection helps keep lightning spikes away from your TVs, computers, and HVAC equipment.
  • Comfort during outages: A Generac standby generator keeps your heating, cooling, and refrigerator going until the grid comes back.
  • Fewer surprises at inspection: Up-to-date electrical work helps your home pass a buyer’s inspection when it’s time to sell.

Electrical Issues We Find in Duluth Homes

Homes built in Duluth during the ’80s and ’90s often still have their original 100 or 150 amp service. That was plenty back then, but it gets tight once you add an electric car, a home office, and a larger heat pump. Some homes from that era have Federal Pacific or Zinsco panels, which have known safety problems and are worth replacing. Aluminum branch wiring shows up occasionally too, and it needs special connectors to stay safe. Summer storms rolling across Gwinnett bring lightning that can send surges through your service line. Ice storms and high winds can down trees and power lines across the area, which is why more Duluth families are adding standby generators.

Your air conditioner probably runs more hours here than almost any other appliance in your home. Taking care of it, or replacing it at the right time, pays off.

  • A home that feels comfortable: Proper airflow and refrigerant levels let your system remove humidity, so cool air feels dry and pleasant.
  • Lower monthly costs: A clean, well-adjusted system uses less electricity to reach the same temperature.
  • Fewer breakdowns in July: Tune-ups catch weak capacitors and worn parts before they fail on the hottest day of the year.
  • Healthier indoor air: Upgraded filters and air cleaners reduce dust, pollen, and pet dander throughout the house.
  • Real savings with an upgrade: Swapping out an aging or R-22 system for a high-efficiency model can noticeably cut energy use and bring new warranty coverage.

Duluth’s cooling season often starts in April and runs into October, and the humidity rising off the Chattahoochee corridor makes the air feel heavier still. Systems that can’t keep up with moisture leave homes cool but damp, which can lead to musty smells. Condensate lines clog with algae and sludge in that warm, wet air, causing leaks around the indoor unit. Spring pollen collects on outdoor coils and reduces efficiency until someone washes it away. Many homes here still have systems from the early 2000s or older, and replacing R-22 refrigerant in those units has become expensive. Months of near-constant running also wear down fan motors and capacitors faster than in milder climates.

Duluth Heating Services

Duluth winters are short, but a cold night without heat feels long. Keep Smiling repairs, maintains, and replaces gas furnaces and heat pumps across the city. We’re a Bryant Factory Authorized Dealer and we work on most other major brands as well. If your system is acting up, we’ll diagnose it and explain whether a repair or replacement gives you the better value. Visit our heating services page to learn more.

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A Keep Smiling technician working on equipment in a mechanical closet
good to know

Signs Your Furnace or Heat Pump Needs Service

  • The heat takes much longer than usual to warm the house
  • Your heat pump’s outdoor unit is caked in ice that won’t melt off
  • Vents blow air that feels barely warm
  • The furnace clicks repeatedly but won’t light
  • Dust and dry air seem worse every winter
  • The system is more than 15 years old and needs repairs often
a closer look

Duluth AC Repair and Installation

Duluth summers are long and humid, and a weak air conditioner makes them feel even longer. Our HVAC technicians handle AC repair, seasonal tune-ups, and full system replacements. We also install ductless mini splits, fix refrigerant leaks, and upgrade indoor air quality. We’ll give you a straight answer about whether your current system is worth repairing, with options at different price points. Our air conditioning services page has the details.

Signs Your Air Conditioner Is Struggling

  • The AC runs all afternoon but the house never feels cool
  • You hear grinding, squealing, or clanking from the outdoor unit
  • The condensate drain pan is overflowing
  • Some vents push strong air while others barely move any
  • Indoor humidity stays high even with the system running
  • The breaker for your AC trips during heat waves

Our Service Process in Duluth

  1. Contact Us: Schedule online or call anytime. Calls are answered day or night and we get you booked quickly.
  2. Your Technician Arrives: Expect a uniformed, screened professional driving a clearly marked Keep Smiling truck.
  3. Thorough Diagnosis: We inspect your system and explain the problem without technical jargon.
  4. Upfront Options: You’ll get a written price for each choice, and you decide how to proceed.
  5. Careful Work: We protect your floors and furniture, finish the job, and clean up afterward.
  6. Final Walkthrough: We test the results, answer your questions, and provide your warranty in writing.
Call (770)-273-9090
where we work

Neighborhoods We Serve in Duluth

Duluth has a little bit of everything, from established family neighborhoods off Pleasant Hill Road to the gated streets of Sugarloaf Country Club. We’ve been inside homes in just about every corner of the city. That means we usually know what kind of plumbing, wiring, and HVAC equipment to expect before we knock. A few neighborhoods where you’ll see us often:

  • Old Peachtree
  • Sugarloaf Country Club
  • Duluth North
  • Rogers Mill
  • Chattahoochee Reserve
  • Howell Glen
Duluth map marking Old Peachtree and Rogers Mill
  • Old Peachtree
  • Rogers Mill
Map data © OpenStreetMap contributors

Why Duluth Families Trust Keep Smiling

Keep Smiling began in 1985 as a small plumbing shop that grew through referrals and repeat customers. Today our licensed plumbers, electricians, and HVAC technicians serve Duluth homes with the same focus on honesty and good work. Every technician is background checked and drug screened, and they show up in uniform ready to explain your choices. We’re a Bryant Factory Authorized Dealer and a Generac dealer, and we’re proud to be Best of Gwinnett, BBB accredited, and Google Guaranteed. We serve Duluth from our Loganville headquarters, along with Johns Creek, Suwanee, Peachtree Corners, and more. Georgia License #: MP210191 | CN210975 | EN217959.

Pricing and Financing Options in Duluth

No two homes are exactly alike, so the price of a repair or installation depends on what your home needs. System size, fuel type, accessibility, code requirements, and warranty length all affect the final number. Your technician gives you that number in writing before starting, and that’s the price you pay. For bigger projects, Keep Smiling offers financing through Service Finance and Chowder. That includes a replacement furnace, a tankless water heater, a panel upgrade, or a whole-home generator. Talk with your technician or our customer service team to find a payment plan that works. Learn more on our financing page.

questions, answered

Plumbing, Electrical and HVAC Services in Duluth FAQs

Most likely, yes. We serve the whole city, including Old Peachtree, Sugarloaf Country Club, Rogers Mill, and Chattahoochee Reserve. We also work in neighboring Berkeley Lake, Johns Creek, Suwanee, and Peachtree Corners.
Shut off your home’s main water valve right away to limit the damage, then call us. Our phones are answered day or night and we will get a plumber to you as soon as possible.
Homes built from the late 1970s through the mid-1990s sometimes have this gray plastic supply pipe. It can fail without warning, so we recommend an inspection if your house is from that era. We can repipe with modern materials if needed.
If the unit is fairly new and the problem is minor, a repair usually makes sense. If it’s leaking from the tank, more than 10 years old, or needing frequent fixes, replacing it is often the better long-term value.
Warning signs include frequent breaker trips, a burning smell, warm or rusted panel covers, and certain older brands like Federal Pacific or Zinsco. If you notice any of these, have a licensed electrician inspect the panel.
Yes. A surge protector installed at your panel helps guard appliances, electronics, and HVAC equipment against voltage spikes from lightning and the power grid. We often pair it with point-of-use protection for sensitive devices.
Heat pumps usually last about 10 to 15 years, and gas furnaces often reach 15 to 20 years with regular service. If yours is near the end of that range and struggling, we can help you compare repair and replacement costs.
Most water leaks come from a clogged condensate drain line or a cracked drain pan. That’s common in humid Georgia summers. Turn the system off to prevent water damage and give us a call.
We can often give a general range, but the exact price depends on what we find at your home. Your technician will confirm a firm price in writing after inspecting the job and before any work starts.
Yes. Keep Smiling holds Georgia licenses MP210191, CN210975, and EN217959 and is fully insured. Every technician is also background checked and drug screened.
We do. Financing through Service Finance and Chowder can help with new HVAC systems, water heaters, panel upgrades, and generators. Our team will walk you through the available plans.
It often can. Better filtration, whole-home air cleaners, and UV systems reduce pollen, dust, and dander in the air you breathe. We’ll look at your current setup and recommend what fits your home.
word gets around

Why people keep calling Keep Smiling.

★★★★★

“He was excellent. Very knowledgeable. Pleasant demeanor. He assessed the issue, got it fixed quickly.”

Vanessa Gilbert · Google review

Rated 4.9 stars across 4,334+ Google reviews by neighbors across Northeast Atlanta. Reviews shown are representative of Keep Smiling’s Google profile.

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where we roam

Serving Northeast Atlanta, county to county.

10 counties, 54 cities, one crew that works the same way in all of them. A truck from us is a truck from us wherever you are.

  • AlpharettaFulton County
  • BufordGwinnett County
  • DuluthGwinnett County
  • DunwoodyDeKalb County
  • GainesvilleHall County
  • Johns CreekFulton County
  • LawrencevilleGwinnett County
  • LoganvilleGwinnett & Walton County
  • MonroeWalton County
  • Peachtree CornersGwinnett County
  • SnellvilleGwinnett County
  • SuwaneeGwinnett County

…and 42 more across Barrow, DeKalb, Forsyth, Fulton, Gwinnett, Hall, Jackson, Newton, Rockdale and Walton County.

Ten counties across Northeast Atlanta, and if you’re just past the edge of it, call us anyway.
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ready when you are

Get Help From a Duluth Team You Can Count On

When the hot water quits, the lights won’t stop flickering, or the heat pump freezes up on a cold night, Keep Smiling is a call away. You’ll get a background-checked technician, a clear explanation, and a written price you approve before we start. Schedule your service online, and let us take care of the rest.

(770) 273-9090