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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon10
    Verified water heater services reviews

Top-Rated Water heater pros in Bethlehem - Updated Nov 2026

Avatar for All Around Mechanical Services, Inc.
All Around Mechanical Services, Inc.
4.6(
30
)
Water Heater - Repair or Service - For Business

Serving Bethlehem, CT and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"David called me within 10 min. of posting the request, & enquired details and gave me a quote for the annual maintenance. His quote was very reasonable, and was upfront about what is covered and what was not. He was on time, wore booties w/o asking (I am particular as we have a toddler), finished his job thoroughly & patiently answered every question I had. I had couple of other minor issues - he fixed those w/o any additional charge! He checked my water heater too, for no additional charge! He didn't oversell, and came across as genuine, and someone knowledgeable."
Recommended by100%of homeowners
Avatar for InstaPlumbing, LLC
InstaPlumbing, LLC
4.6(
229
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+5 more

Serving Bethlehem, CT and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I was thoroughly pleased with the installation of my new kitchen faucet. What I liked is that they went above and beyond. There were other things in the house that needed attention and Kyle changed did a "wellness" check around the house, the bathrooms and found that the faucet to the outside of the house needed updating. I wills say that their price was a little high but for my peace of mind, it was worth it. Within 5 days of my work being done, I recommended them to a co-worker who needed a hot water heater repaired and they are satisfied with that work too. Yes, I will call on InstaPlumbing again."
 Dryer Vent Inspection
 Faucet Repair and Installation
 Shower valve repair
 Large and Small Drain Snaking
Apprentice Dylan

+1

Response time9 hrs
32 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for P & M Plumbing, LLC
P & M Plumbing, LLC
4.3(
16
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Repair or Service+1 more

Serving Bethlehem, CT and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"P&M Plumbing arrived promptly and on short notice. The work was done very professionally, area left clean and orderly and the sump pump works phenomenally! I had spent 17 hours vacuuming and lugging water after the last storm, so I was thrilled at the thought of having a sump pump. We received about 3 inches of rain the next day and they even called to make sure everything was working well! In this day, it is a wonderful surprise to have a company really care about the customer and the quality of their work and I am more than delighted. Even with the 5-6 inches we received last night, I had no cleanup to do! I am highly recommending P&M!"
Plumbing
15 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for MD. Mechanical, LLC
MD. Mechanical, LLC
New to Angi
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+1 more

Serving Bethlehem, CT and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of plumbing heating services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Water heater replacement
Old water heaters
New water heaters
14 neighbors recently requested a quote
Avatar for Warrior Mechanical Service Company
Warrior Mechanical Service Company
5.0(
61
)
Water Heater - Install or Replace

Serving Bethlehem, CT and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Excellent! Eric installed a commercial grade hot water heater , his standard product. He used copper piping that looks really nice, he was fast, polite and courteous . Thank you warrior mechanical."
Response time3 hrs
Recommended by100%of homeowners
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Water Heaters FAQs, answered by experts

Due to the high temperature, using stainless steel vent pipes for your tankless water heater’s exhaust vent is best. Also, it is safe to use a flexible vent duct as the exhaust fan. If installing the exhaust fan yourself, make sure you are using heat-resistant silicon to connect the exhaust vent and the duct on your water heater.

A well-maintained hot water recirculating pump can last 5 to 15 years. Pumps that run continuously may have a shorter lifespan than demand-controlled models. Hard water can reduce longevity by causing mineral buildup in the pump and pipes. Regular maintenance, such as cleaning or replacing filters, can extend the pump’s lifespan.

If your system is not vented properly, you could experience what’s called backdrafting. Backdrafting is when your ventilation system isn’t working as it should, and instead of releasing gases outside, they get trapped inside your home. 

Gas and propane water heaters create a few types of combustion gases, but the most dangerous is carbon monoxide. If there’s too much build-up of these gases inside your home, it can lead to carbon monoxide poisoning.

Electric water heaters typically last 10 to 20 years, though proper maintenance can extend their lifespan. If your unit is over a decade old and showing signs of inefficiency—such as higher energy bills, frequent repairs, or leaks—replacement is a smart investment. Tankless models last over 20 years, which can make them a longer-lasting alternative to traditional tank water heaters.

While a water heater explosion is rare, it is a serious danger. Be aware of these critical warning signs:

  • Sulfur or Rotten Egg Smell: This is a major red flag, especially for gas water heaters. It can indicate a gas leak, which could ignite and cause an explosion.

  • Leaking Pressure Valve: If the temperature and pressure (T&P) relief valve is leaking, it may not be able to properly regulate internal pressure, creating a risk of bursting.

  • Shaking or Rumbling: Loud rumbling or shaking from the tank can be a sign of extreme pressure buildup.

  • Excessive Heat: If the exterior of the water heater feels unusually hot to the touch, the unit may be overheating dangerously.

  • Rust-Colored Water: This can be a symptom of severe internal corrosion that compromises the tank's integrity.

If you notice any of these signs, especially a gas smell, you must act immediately. Shut off the gas supply to the water heater and call a professional plumber right away to prevent a potential disaster.

The Bethlehem, CT homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.