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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon4.3k+
    Verified boiler installation services reviews

Find Boiler installation pros in Denver

Avatar for Quality West Heating & Cooling
Quality West Heating & Cooling
4.7(
337
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Outstanding. Quality West owner, Rob and his assistant Junior, were professional and did outstanding work installing the Aprilaire Humidifier. They were thorough in testing it and delivering an excellent product. I will have them do all my HVAC work going forward."
This image shows the wall mounted unit that will cool and heat the whole living room area without any noise.
Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for PipeWorx Plumbing and Heating
PipeWorx Plumbing and Heating
4.6(
141
)
Gas Boiler or Radiator Heating System - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Pipeworx was hired to remove an old water heater and replace it with a tankless one in our summer cabin in Pagosa Springs CO. We were not there (in Arizona) so all communication was via phone, text and email.. Walt and Jodi kept us apprised of every step from product selection to installation. We arrived after the install was complete and met with them where they described every detail of the job. Communication is key to any long distance or local work and Pipeworx delivered in spades - the work was excellent and we are using them for another project."
Low water cut off
Low water cut off
Gas water heater
Gas water heater
3 handle valve

+53

Response time10 hrs
Recommended by98%of homeowners
Avatar for Plumbing Tree
Plumbing Tree
4.4(
33
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Denver, CO and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Keith was excellent from his first visit to explain what needed to be done on the kitchen drain. Afterwards, I requested a new water heater to be installed. Both were done this morning in a timely manner. Keith is very competent, takes the time to explain everything, and did an excellent job. I also was extremely thankful to Keith this morning as he identified a gas leak that I otherwise would not have known about. Because of Keith I was able to call the gas company and they came out within the hour to address the problem. I highly recommend Keith to anyone needing services. And, if I have any future issues, Keith will be the first person that I will call. He is a wonderful person, and he did an excellent job for me! Thank you Keith!!!"
Whole whole where pipe bursting line
Plumbing Project
Whole in yard whole in. It’s street at city tap
Plumbing Project
Heating & A/C Project

+58

Response time7 hrs
9 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Jim Needham Heating Cooling Plumbing & Drain
Jim Needham Heating Cooling Plumbing & Drain
4.6(
70
)
Gas Boiler or Radiator Heating System - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Outstanding family-run company. Efficient, professional, reliable, and friendly service. Jim personally handled my plumbing "emergency" on very short notice, and he absolutely exceeded all expectations. I had a saddle valve - connected to the water heater - fail, and he not only fixed the leak but installed a stronger valve/line to mitigate the risk of another premature failure. Jim Needham Plumbing is a top-tier company that goes above and beyond, and stands behind their work; this is the type of small business I am happy to support and recommend to friends and family."
After
Furnace
Outdoor a/c (condensing) unit
Indoor furnace
Outdoor a/c (condensing) unit

+1

Response time2 days
11 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Aether Mechanical, LLC
Aether Mechanical, LLC
4.5(
106
)
Gas Boiler or Radiator Heating System - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Highest recommendation for the Aether Mechanical team for our recent boiler replacement--every detail of the experience was managed professionally and expeditiously, and the entire project was completed in one day. Take a bow Nicholas, Ivan, John, and team--virtuoso performance and a first-rate result! Two days after Christmas we woke up to a cold house and a boiler that would not fire up. Aether Mechanical responded at once by phone and Nicholas arrived onsite from Boulder to our house in SE Denver within two hours. Initial assessment indicated a burnt-out igniter. Nicholas replaced that and discovered during fire-up testing that carbon monoxide levels were *way* above acceptable limits. After repeated tests, the unavoidable conclusion was a cracked firebox, necessitating replacement. We reviewed estimates at three price points, selected one, and Nicholas mobilized his team. During a holiday week, working around challenges with HVAC supply house business hours, the team completed the installation entirely the following day. In spite of an expensive but necessary replacement, this has been singularly the best contractor experience I have had in 25 years living in a mid-century modern house that is starting to require more frequent repairs."
Mini-Split system
AC/Furnace Install
Cast Iron Boiler
AC Install
Boiler

+1

Response time7 hrs
Response rate89%
87 neighbors recently requested a quote
Avatar for Controlling Systems
Controlling Systems
4.4(
14
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Denver, CO and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"Every step, from the estimate with the super friendly Ryan, to the final walk-thru with the always professional Gemini, was absolutely top notch. They installed a new furnace, A/C, and tankless water heater and we are very happy with the work and final outcome. The whole crew was wonderful!"
Additional Photos
Additional Photos
Additional Photos
13 neighbors recently requested a quote
Recommended by76%of homeowners
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Install Boiler questions, answered by experts

Radiators are a popular home heating choice in older homes, but they are becoming less common in new-construction homes. According to a 2022 report by Elements Visual Capitalist, only around 1.3% of new single-family homes have radiators and similar heating systems, such as baseboard heating.

While they may not be as popular as they once were, radiators today come with more energy-efficient features that can make them practical for modern homeowners.

The right type of HVAC system will depend on several factors, including your climate, budget, preferences, and existing HVAC setup. For example, if you live in an area that experiences extreme weather, then a split system would likely be the best option. Or, if budget is a concern, consider installing a ductless system in just one room.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

Installing a boiler requires training, a specific skill set, and extensive experience. Boiler installation can be extremely dangerous, as it involves working with water lines, gas lines, and electricity. For this reason, it’s strongly recommended that you hire a professional to install your boiler. Some states even consider it illegal to work on a boiler without the proper licensing.

Warmed or cooled air can escape your home through drafty windows and doors. If you notice any gaps, be sure to caulk and seal them. You can also hire a local pro for an energy audit to get a list of energy-saving recommendations. 

Finally, check your insulation. It can settle in over time and become less effective. The Environmental Protection Agency (EPA) estimates that you can save an average of 15% on heating and cooling costs (or 11% of total energy costs) by sealing leaks and making sure attics, crawl spaces, and basements have a nice layer of insulation.

The Denver, CO homeowners’ guide to boiler installation services

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