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TRUSTED BY KATY, TX HOMEOWNERS

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    Verified boiler installation services reviews

Find Boiler installation pros in Katy

Avatar for Punbar Air
Punbar Air
5.0(
54
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Katy, TX and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Outstanding company! The owners are mechanical engineers and were able to figure out why a unit previously installed by another contractor caused mold in my ductwork. They completed a Manual J calculation report that indicated the unit was too large, and they replaced the unit. Previously, this contractor identified that the static pressure on both of my HVAC units was too high and appropriate adjustments were made. All employees are professional, knowledgeable, friendly, responsive and extremely helpful. Hands down, this is the best HVAC contractor I have ever worked with."
Heating System Maintenance
Heating System Maintenance
Coil and Condenser Replacement
Heating System Maintenance
Coil and Condenser Replacement

+40

9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Kelly's
Kelly's
4.9(
45
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Katy, TX and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"“ Thought you should know” ELIE, Ras, Sergio and the TEAM did a wonderful job with a complete AC installation and Insulation. They were very attentive, answered all the difficult questions from someone whom knows very little about AC and made this a seamless process. It’s only day one, but very thankful you have wonderful staff at Kelly’s. I would use your services again and highly recommend Kelly’s. Just because of the TEAM in the field. Highly recommend them. No pressure. Just quality service. The Coopers"
Air Duct Cleaning
insulation
HVAC
Furnace Install
Furnace Install

+15

Response time10 hrs
35 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for NEW GEN PLUMBING LLC
NEW GEN PLUMBING LLC
5.0(
7
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Katy, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I found New Gen Plumbing on Angi and selected them due their high rating. Well the rating was well deserved. They contacted me the same day and scheduled a FREE consultation. I was scared they were going to tell me I needed a new wyd heater but they didn’t. Thank goodness! I have a tankless water heater they simply needed to be descaled. Sixto did a great job and I’m back in business with a plan to keep using them going forward. Sixto even gave me some pointers on my water filtration system the day would help the overall performance and efficiency of my water heater. Much appreciated. I highly recommend!!!"
Before
After
After
After
After

+7

Response time5 hrs
Response rate86%
75 neighbors recently requested a quote
Avatar for John Moore Services
John Moore Services
3.6(
848
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Katy, TX and surrounding areas

Approved

In business since 1965

Free estimates

Warranties offered

"John Moore sent a gentleman out initially to assess the problem, he happened to be a Supervisor. He was extremely professional and very complete in his assessment of the problem. He recommended that we replace our unit due to its age and condition. Then he worked with us to get the best unit for our house and worked with us on the financing options. Tom Lee was the initial person to come to our house and once we had decided on our plan of action Tom went above and beyond to ensure that we had the best possible system for our house. Excellent customer service skills and a very nice man. We got lucky !!!!! The installation crew was even better. They were very professional, courteous, and precise in what they were doing. It took some time to complete the job, but not because of the crew; it was due to the fact that they went the extra mile to make sure that the install was done correctly and they had to correct some mistakes that a previous installer made (not John Moore staff). My wife and I would highly recommend any and all John Moore services for your home needs. We have used their Plumbing, Electrical and now their A/C service teams and they are all top-notch. Excellent company and we would HIGHLY recommend them to anyone."
11 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Gauff Coast Plumbing
Gauff Coast Plumbing
5.0(
5
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Katy, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Expert Plumbing Solutions | 10+ Years Experience\n\nLooking for a plumber who values precision and your home’s integrity? With over a decade of hands-on experience, I provide top-tier plumbing services to homeowners across Galveston, Houston, Webster, and the surrounding communities.\n\nI specialize in the high-skill projects that keep your home running efficiently:\nWhole-Home Repipes: Modernizing your infrastructure with durable materials.\nTankless Water Heaters: Endless hot water with expert, energy-efficient installations.\nExpert Drain Services: Clearing tough clogs and ensuring long-term flow.\n\nMy Philosophy:\nI believe a plumber’s job is to provide peace of mind through transparency and technical mastery. My approach is built on respect for your property and doing the job right the first time. When you hire me, you get a professional dedicated to the highest industry standards.\nLet’s get your plumbing back in peak condition!

Old cast-iron piping
New drain install
New sewer line
DIAZ AC CONTRACTOR
5.0(
3
)
Gas Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Katy, TX and surrounding areas

Approved

In business since 2004

Credit card accepted

Offers commercial services

We pride our company on reliability, great communication,\nintegrity, and quality work. We are experts in our trade and will do our best\nto keep you as educated as we can on your particular task or project. We look\nforward to earning your business!\n

Response time10 mins
19 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Eco-Mechanical
Eco-Mechanical
New to Angi
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Katy, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

EcoMechanical is a licensed and insured HVAC contractor proudly serving residential and commercial customers throughout the Greater Houston area. Locally owned and operated. We specialize in the installation, repair, replacement, and preventative maintenance of heating, ventilation, and air conditioning systems, delivering reliable comfort and energy-efficient solutions tailored to each customer's needs.\nOur experienced technicians are trained to service all major HVAC brands and are committed to performing every job with precision, integrity, and attention to detail. Whether it's a routine maintenance visit, an emergency repair, a complete system replacement, or a large-scale commercial HVAC installation, EcoMechanical provides dependable service that customers can trust.\nOur services include:\nResidential and commercial HVAC installations\nAir conditioning and heating repairs\nComplete system replacements\nAnd much more.

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Install Boiler questions, answered by experts

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

The best time to buy home heating oil is in the summer when the demand is lowest, as the prices are usually lower. However, waiting until the summer to buy is often unavoidable unless you install a separate storage tank. If you have the space for a second tank, you can expect to pay between $1,000 and $4,000 for the oil tank replacement or installation, depending on the capacity and location. You could quickly recuperate these costs, though, by stocking up on heating oil in the summer and avoiding deliveries in the winter when prices are highest.

A furnace is a big unit where gas, heating oil, or electricity heats the air. The warmed air is then pushed back out through ducts and vents. 

A boiler uses electricity, heating oil, or gas to heat water that is pushed into the room through a radiator. This is one of the oldest and most effective ways to heat a house, but radiators can also be unsightly and leave hot and cold spots in the room.

Heat pumps use a refrigerant to move heat from outside into the house and return it to the room through ducts and vents.

The cost to install a steam boiler varies depending on the type, fuel used, and your house size. The average cost to install a boiler is $5,900. You could spend $2,000 for a basic electrical steam boiler or up to $9,000 for a high-efficiency oil-burning steam boiler. Boiler installation is a job that’s best left for professionals to complete, and, in some states, only licensed installers can legally complete the job.

The Katy, TX homeowners’ guide to boiler installation services

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