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TRUSTED BY SEAL BEACH, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified boiler installation services reviews

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Avatar for HD MECHANICAL INC
HD MECHANICAL INC
4.9(
32
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"From start to finish, my experience with HD Mechanical Inc. was exceptional. They expertly installed our outdoor patio heaters and ac unit for my home, ensuring seamless communication every step of the way. Their professionalism was evident throughout the process, and they went above and beyond to meet our specific preferences and built everything to code. Now, thanks to their diligent work, our heaters function flawlessly, delivering the perfect ambiance to our outdoor space. I couldn't be happier with the outcome and highly recommend HD Mechanical Inc. for any heating or cooling needs."
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

Response time6 hrs
Response rate100%
75 neighbors recently requested a quote
Avatar for NT Electric & HVAC Inc
NT Electric & HVAC Inc
5.0(
9
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

Our business is our livelihood but it is also so much more. NT Electric & HVAC Inc was started to fill in a void in the current market and to make a business that people can place their trust in. Over the years we have never lost our commitment to our clients and that is what has allowed us to succeed in a very competitive industry. The employees of NT Electric & HVAC Inc stand committed to our purpose and will provide the best service!

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9 neighbors recently requested a quote
Recommended by100%of homeowners
SINCLAIR HEATING & AIR CONDITIONING LLC
4.9(
86
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

In business since 2003

Emergency services offered

Warranties offered

"They came out on time and did the inspection. It was determined that the thermostat was broken. We were shown options that he could install right then and there, and told how we could do it ourselves if we wanted a different thermostat. We chose a different one and installed it according to their directions. We have been toasty warm all winter."
Recommended by98%of homeowners
Avatar for Water Heaters Only, Inc
Water Heaters Only, Inc
4.7(
440
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

In business since 1968

Free estimates

Emergency services offered

"Expensive but showed up the same day as my call with everything necessary for the upgrade. Had the new system installed and producing hot water within 3 hours of arriving. Installer (Mario) was polite, conscientious, knowledgeable, informative, and pleasantly and intelligently conversational. Made the entire experience a pleasure."
Our technician Fabian getting ready to drain a water heater.
A newly installed 40 gallon residential water heater.
A tankless water heater installed in a garage.
Additional Photos
Additional Photos

+2

Recommended by94%of homeowners
Avatar for California Comfort Air Conditioning and Heating
California Comfort Air Conditioning and Heating
4.8(
21
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

In business since 1999

Emergency services offered

Credit card accepted

"

Thermostat screen went blank-furnace and A/C wouldn't come on

Chris arrived within 1 hour of my call and checked the furnace first. He found a blown fuse and no power to low voltage wires inside the unit. He then checked the thermostat and found it was no longer working. Chris replaced the fuses and the thermostat with a similar unit and tested the entire system. He then checked my A/C unit for Freon levels and found and repaired a wire that had come loose.

Chris was very pleasant to work with and explained what he was checking and why as he went along. He explained how the new thermostat worked and provided me with both the installation and operating manuals. Great service!  


"
Truck
Laguna Install
Laguna Install
Laguna Install
Recommended by100%of homeowners
Home Comfort USA
4.3(
110
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"On Thu, Aug 4, 2016, my 13-year-old Rheem, builder's grade HVAC system stopped working. Since I had experienced good service with Home Comfort (formerly American Comfort) over the last several years (Home Comfort did not sell me my old system; I purchased it from an independent contractor), I called to schedule an appointment regarding different options Home Comfort could offer me. On Sat, Aug 6, I selected an upgraded, high-end, Lennox resort-grade system and emphasized that I wanted an auto-switch thermostat that I had been used to on my previous system (automatically switches between AC and heat as needed). The installation was performed Mon, Aug 8, and took approximately 8.5 hours. When I asked the installers if I had an auto thermostat for the new system, they said yes. They removed the old system, insulated the walls of the furnace closet, and installed and rewired the new system. It all looked wonderful, quickly passed city inspection, worked very quietly, and cooled efficiently. Three months later, on Fri, Nov 18, when temperatures began dropping at night--and the day before I was leaving for a 2-week vacation out of state--I realized that I had a manual thermostat and had to adjust the thermostat to heat. Unfortunately, I also discovered that the heat wasn't working. I double-checked the thermostat and the Lennox manuals to ensure I hadn't overlooked any steps. On Sat, Nov 19, I called for service, but due to short-handed availability of technicians (Customer Service (CS) representative said a couple of technicians had called in sick), they couldn't send anyone until Monday. I was concerned because I had family members (adult and child) in the house while I was gone on vacation. Since I would be on vacation on the day of service, I arranged for someone to be at the house during the window of time provided by the CS representative (2-4 pm because CS rep told me that the technician did not have a heavy schedule that afternoon). On Monday afternoon, the person waiting at my home texted me at 4:15 pm and said no technician had showed up, and I asked that person to call the CS phone number I texted. He did and informed me that the new ETA was 5 pm and that the CS rep told him that the standard service window of time was 1 pm-5 pm. Five pm came and went, and the new ETA from CS was 6 pm. The person canceled the service because he had to leave. My adult family member at home told me when I called to wait to schedule service until I came back from vacation because it was too stressful and unreliable to schedule service. While on vacation, I purchased an auto thermostat at Costco that was the same brand (Honeywell) as the one that Home Comfort installed (I didn't want to fight the issue about an auto thermostat and just wanted it done). My family members used the fireplace and blankets to keep warm at night. I called CS several days (Wednesday) before I returned from vacation (Saturday) to ensure a technician would come first thing Monday morning, Dec 5, and to let them know that I also wanted the technician to replace the thermostat with the one I purchased. The CS rep provided a window of time between 8-10 am. On Dec 5, about 9:30 am, a CS rep called me to let me know that the technician would be there closer to 10 am. He showed up about 10:30 am. It took him about two hours to check everything, rewire the system (it had been mis-wired), and test everything (both heat and cooling). He also had to call the Honeywell CS (15 minutes on Hold) to walk him through the system programming because the technician said it didn't go according to instructions in the manual. Happily, Home Comfort did not charge me a dime for service because it was included under the warranty. The cost in this review was the amount I paid in August for the system."
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Recommended by86%of homeowners
Avatar for Iwai Cooling & Heating Co
Iwai Cooling & Heating Co
4.2(
1,041
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Seal Beach, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"Not only did the technician find what was wrong, he told me that the unit was in really good shape (after he got it running) and that it was good to go for many more years.  That's honesty for ya!  I know that IWAI is a little far from the westside of LA but I called Craig anyway because of the great job he did for another one of my clients.   The tech got out there within 48 hours and made some minor repairs to a unit that I was told would possibly need replacing.  My clients were thrilled at the low cost of the inspection and that it only needed a couple of parts to get it running like new.  They ended up buying the condo and are extremely happy.  But wait, there's more!  
(Second Job) I met Craig in January of 2015 when he came out to look at a heating problem in one of my client's apartment complexes in Beverly Hills.  This was an old building (1947) that had 3 gravity furnaces underneath the property.  All 3 were original and failing.  I got three bids to have them removed and replaced with new units.  One bid was just over $18,000, the other just over $16,000. Mind you, this was to remove three gravity furnaces, replace them with new gas furnaces, including some duct work, as well as do a complete new installation in the attic of the top floor unit.  IWAI's price came in approx. $8,000 cheaper than the highest bid!!! $8,000!!!!  I was skeptical at first.  I mean who wouldn't be?  An $8,000 difference?  But I discussed it with my client and we went with IWAI Heating and Cooling.  Not only did Craig do what he said he was going to do, but he started on the day he promised, and he finished on time as well!!!  The tenants had only nice things to say about he and his crew and no one was inconvenienced but for a couple of hours when an air return had to be installed in one of the lower units.  The job couldn't have gone any better and the price was outrageously inexpensive for the work that was performed.  My client was thrilled and so were her tenants, especially now that they had heat.  Thanks to Craig and his crew for taking care of this job with the upmost professionalism.  If you need anything regarding HVAC, call IWAI heating and cooling.  Have them come out and give you a quote; you'll be glad you did!!!
"
Craig Iwai on Estimate
Crane Setting Package Unit
Brandon and Johnny Installing Complete System
Additional Photos
Additional Photos

+2

Recommended by86%of homeowners
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Install Boiler questions, answered by experts

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.

Boilers are equipped with multiple safety features to ensure safe operation. These include pressure relief valves to prevent overpressure, temperature high-limit switches to avoid overheating, and flame failure safety devices in gas boilers to cut off the gas supply if the flame goes out unexpectedly. Low water cutoffs prevent operation with insufficient water levels, and pressure gauges help monitor pressure levels. Ventilation and flue systems prevent the buildup of harmful gasses. Boilers often feature error code systems for automatic shutdown during malfunctions and gas leak detection for safety. Regular maintenance is crucial to ensure these safety features function correctly.

All modern boilers are condensing boilers because they’re the most efficient type. Instead of extra heat leaving through the flue, these boilers trap the heat and use it to heat the house. Whether you choose a combi boiler, system boiler, or regular boiler, you can opt to get a condensing system. If you have an old boiler that’s not a condensing boiler, it’s a good idea to get an upgrade.

The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.

The cost-efficiency of baseboard heaters depends on the type and how you use them. Generally, standard electric baseboard heaters can be expensive to run because they use electric resistance heating, which is less energy-efficient than systems like forced-air or heat pumps. However, hydronic and gas versions are typically much cheaper to operate. Hydronic models are more energy-efficient because they heat a liquid that retains warmth longer, preventing the thermostat from turning on and off as often. The overall running cost is also influenced by local electricity rates, your home's insulation, and your usage habits. To increase efficiency, you can use baseboard heaters for zoning, meaning you only heat the specific rooms you are using.

The Seal Beach, CA homeowners’ guide to boiler installation services

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