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  • Verified reviews icon654
    Verified boiler installation services reviews

Find Boiler installation pros in Pasadena

Avatar for John Moore Services
John Moore Services
3.6(
849
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Pasadena, TX and surrounding areas

Approved

In business since 1965

Free estimates

Warranties offered

"Excellent service from John Moore! This review goes across the board to capture all those involved from the initial call for service to the final step of installation/replacement. We’ve used John Moore Services for several things in the past three months and once again they did not disappoint. Great customer service, pricing, speed and efficiency in installation! Highly recommend!!"
12 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 Pasadena, 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
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 Pasadena, 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.

Ace Comfort Air Conditioning & Heating
4.7(
46
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Pasadena, TX and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Ace Comfort did an excellent job installing my ductless split unit system. They can go my home to provide an estimate and we scheduled a date to install. The team at Ace Comfort is wonderful to deal with and they took the opportunity to answer my questions."
Recommended by92%of homeowners
Wilson Mechanical LLC
5.0(
13
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Pasadena, TX and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"DAVID HAD TO RAISE AND RE-HANG THE HVAC UNIT FROM THE RAFTERS OF THE HOME AS IT WAS INITIALLY INSTALLED IMPROPERLY.  THE UNIT NOW DRAINS PROPERLY INTO THE PLUMBING SYSTEM.  HE ALSO DISCOVERED A FAULTY HEAT LIMITING SWITCH ON THE FURNACE - NOT A MINOR ISSUE - AND REPLACED IT AND TESTED THE SYSTEM.  FINAL COST WAS MUCH LESS THAN HIS INITIAL ESTIMATE.   DAVID IS ALWAYS ON TIME, VERY POLITE, VERY KNOWLEDGEABLE AND PROFESSIONAL ABOUT HVAC SYSTEMS, AND VERY REASONABLE IN HIS PRICING.  I SIMPLY WON'T USE ANYONE ELSE FOR MY HVAC NEEDS AS THIS COMPANY IS SIMPLY THE BEST.
"
Recommended by100%of homeowners
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Install Boiler questions, answered by experts

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

Some high-quality steam boilers come with 10-year warranties, but a well-installed, properly maintained model can last at least 20 to 25 years. Learning how to clean a boiler, getting an annual professional service, and keeping up with maintenance and repairs on your heating system are all important for getting the most out of your model. 

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

DIY is not recommended due to safety risks and technical expertise required. Hire licensed professionals.

The radiators closest in proximity to the boiler heating system will heat up first. Radiators in rooms farther away from the boiler will take longer to heat up and may be the coolest rooms in the house. The radiator unit itself should heat up evenly; otherwise, there may be trapped air inside it.

The Pasadena, TX homeowners’ guide to boiler installation services

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