We Serve New Jersey!

Plumbing, Heating, Cooling, Electrical, Water Treatment & Indoor Air Quality Experts

Guaranteed Service continues to be the company of choice for New Jersey residents who need quality and dependable installations, repairs, replacements, or maintenance services regarding their heating, cooling, plumbing, electrical, water treatment, or indoor air quality.

Our technicians, plumbers, comfort advisers, and customer service representatives are professional and experienced; there's no job we can't handle. We are licensed, bonded, and committed to complete customer satisfaction.


Full Service Company Serving New Jersey

Guaranteed Service provides plumbing, heating, cooling, electrical, water treatment & indoor air quality services in ALL of Central New Jersey & the Jersey Shore. If you are looking for reliable and trustworthy home service, contact us today!

Guaranteed Service is backed by years of industry experience, with fully trained and knowledgeable technicians available for you 24/7/365. We can help you resolve all of your problems today and we stand behind our Same-Day Service Guarantee, so you can rest assured that today really means today! Whether you have a broken HVAC system, no air conditioning, no heat, need a generator, indoor air quality questions, hard water, a clogged toilet, need a bathroom remodeled, or anything in between, we can help you!

We serve customers throughout Monmouth County, Middlesex County, Somerset County, Ocean County, Mercer County, Union County, Burlington County, and Camden County, including:

  • Adelphia
  • Allenhurst
  • Allentown
  • Allenwood
  • Asbury Park
  • Atlantic Highlands
  • Avenel
  • Avon-by-the-Sea
  • Barnegat
  • Barnegat Light
  • Basking Ridge
  • Bayville
  • Beach Haven
  • Beachwood
  • Bedminster
  • Belford
  • Belle Mead
  • Bernardsville
  • Blawenburg
  • Bound Brook
  • Bradley Beach
  • Berkeley Township
  • Brick Township
  • Bridgewater
  • Brielle
  • Cliffwood
  • Colonia
  • Colts Neck
  • Cranbury
  • Cream Ridge
  • Dayton
  • Deal
  • Dunellen
  • East Brunswick
  • East Windsor
  • Eatontown
  • Edison
  • Englishtown
  • Fair Haven
  • Far Hills
  • Farmingdale
  • Flagtown
  • Fords
  • Forked River
  • Fort Monmouth
  • Franklin Park
  • Freehold
  • Hazlet
  • Helmetta
  • Highland Park
  • Highlands
  • Hightstown
  • Hillsborough
  • Holmdel
  • Hopewell
  • Howell Township
  • Imlaystown
  • Iselin
  • Island Heights
  • Jackson Township
  • Keasbey
  • Kendall Park
  • Kingston
  • Lakehurst
  • Lanoka Harbor
  • Lavallette
  • Leonardo
  • Liberty Corner
  • Lincroft
  • Little Silver
  • Long Branch
  • Manahawkin
  • Manalapan
  • Manasquan
  • Manchester Township
  • Mantoloking
  • Manville
  • Marlboro
  • Martinsville
  • Matawan
  • Metuchen
  • Middlesex
  • Middletown Township
  • Millstone Township
  • Milltown
  • Monmouth Beach
  • Monmouth Junction
  • Monroe Township
  • Morganville
  • Navesink
  • Neptune
  • Neshanic Station
  • New Egypt
  • Normandy Beach
  • North Brunswick
  • Oakhurst
  • Ocean County
  • Ocean Gate
  • Ocean Grove
  • Oceanport
  • Old Bridge
  • Parlin
  • Peapack and Gladstone
  • Pennington
  • Perrineville
  • Pine Beach
  • Piscataway
  • Plainsboro
  • Pluckemin
  • Point Pleasant Beach
  • Port Monmouth
  • Port Reading
  • Princeton
  • Princeton Junction
  • Raritan
  • Red Bank
  • Rocky Hill
  • Roosevelt
  • Rumson
  • Sayreville
  • Sea Girt
  • Seaside Heights
  • Seaside Park
  • Sewaren
  • Shrewsbury
  • Skillman
  • Somerset
  • Somerville
  • South Bound Brook
  • South Plainfield
  • South River
  • Spotswood
  • Spring Lake
  • Tennent
  • Tinton Falls
  • Titusville
  • Toms River
  • Trenton
  • Tuckerton
  • Wall Township
  • Warren
  • Watchung
  • West Creek
  • West Long Branch
  • Wickatunk
  • Windsor
  • Woodbridge
  • Zarephath

Call Us to Schedule a Same-Day Appointment

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Learn About Guaranteed Service



Comprehensive Services to Meet Your Every Need

When you contact Guaranteed Service, we will immediately dispatch one of our technicians and guarantee that we will arrive on time or the service is free. Our team is highly professional, and each member was handpicked so you can rest assured that you'll get only the best. We will go above and beyond for you.

Our comprehensive services include:

  • Air conditioning repair
  • Air conditioning replacement & installation
  • Air conditioning tune-ups
  • Furnaces
  • Heating repairs
  • Heating installation & replacement
  • Heating tune-ups
  • Water heaters
  • Plumbing
  • Indoor air quality, including humidifiers, dehumidifiers, and air purifiers/cleaners
  • Water softeners
  • Boilers
  • Ductless air conditioning

24/7/365 Availability Guaranteed

We know how frustrating it can be when your water heater stops working or your air conditioner breaks in the middle of a heatwave. Because your comfort is our top priority, we are available 24/7/365 to get your plumbing, heating, cooling, electric, water treatment, and indoor air quality working safely and efficiently. We will make you a customer for life.

Contact Our Team Today

Fast, Local Service



Professional & Friendly
Truly great service! He was professional & friendly. He is clearly experienced because he installed a water-pressure sub pump backup system for us which is a complicated job. He came back again a couple of days later to replace an old leaking toilet. He was considerate with cleaning up afterwards too. I highly recommend Guaranteed Services & especially Rob.

Steve Minarik

I Could Not Be Happier with the Service
I am so impressed! I had a water leak and the technician came out to fix my problem shortly afterwards. I could not of been happier with his service. Barry was polite, honest and extremely hard working. I truly appreciate all he did to help me on a bad situation.I highly recommend Guaranteed Services for all your needs. Thanks again!!

Susan C.

Already Recommended to Neighbors
Got an estimate in 1 day and install 2 days later. Everything was amazingly smooth and effortless and our new system is fantastic. Love our new thermostats too. We were very pleased, especially right now when people are having so many problems getting supplies and equipment. Already recommended to neighbors.

Nancy Troske

We Guarantee

Satisfaction Guaranteed

We guarantee your complete satisfaction. If you are not fully satisfied, we'll make it right or you won't pay.

Who is Coming

We will call you when we are on the way, and you will receive both text and email reminders with bios of your technician.

We Will Fix It Right the First Time, Every Time

We believe that a job done right once will always last.

On Time or It's Free

We understand how valuable your time is and we will always respect that.

Honest, Fair & Upfront Pricing

We will provide you with honest, fair and upfront pricing on every job that you ask us to do.

24/7 Top Notch Service

Our customer service representatives are available 24 hours a day, 7 days a week, so you will always speak to a live person.

See Why We Have Earned our Reputation as the Premier Plumbing, Heating, Cooling, Water Treatment, and Indoor Air Quality Company in Central New Jersey.

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