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Best boiler installation pros near Highlands Ranch, CO

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Top-Rated Boiler installation pros in Highlands Ranch - Updated Nov 2026

Avatar for Quality West Heating & Cooling
Quality West Heating & Cooling
4.7(
338
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - Install

Serving Highlands Ranch, 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 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 Highlands Ranch, CO and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Kieth came out multiple times to address the issues I had. Eventually I had him replace my old Furnace, water heater and AC, in addition he cleaned several drains as well. He explained in detail how the project would be competed as well as a time line. He not only finished sooner than expected but did a phenomenal job, he left the work area cleaner than what I had it. I would highly recommend Plumbing Tree for any home services, Even with current circumstances of money being tight I did get multiple other bids and Plumbing Tree was more than fair!"
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
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Awesome Home Services
Awesome Home Services
4.6(
45
)
Electric Boiler or Radiator Heating System - Install

Serving Highlands Ranch, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2024

Emergency services offered

Small jobs welcome

"Plumber Clay is AWESOME, as the company name indicates. Clay went above and beyond to explain everything that caused my emergency leak/s, he identified the source of my ongoing plumbing emergencies that the previous plumbers couldn't figure out--AND THAT PREVIOUS OWNER DIDN'T DISCLOSE--nor did 3 inspectors to buying this house. He scheduled repairs to work with my budget constraints to hopefully resolve ALL issues. Clay is experienced and well informed, shared his observations, made sure that he answered all of my questions and concerns, and even got me scheduled for additional Awesome Home Services, as they offer more than just plumbing and heating!!!"
Starting the process
Attic Work
Rewiring the switch
Finishing Touches
Clean Up

+24

1062 neighbors recently requested a quote
Recommended by11%of homeowners
Avatar for Aether Mechanical, LLC
Aether Mechanical, LLC
4.5(
106
)
Gas Boiler or Radiator Heating System - Install

Serving Highlands Ranch, 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%
85 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 Highlands Ranch, 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
15 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Allen Construction
Allen Construction
4.9(
24
)
Electric Boiler or Radiator Heating System - Install

Serving Highlands Ranch, CO and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"I've had Owen do multiple projects around our home, from ceiling fans, shelving. Cabinets and many more. So when we moved into a house that needed a lot of work we called Owen. He installed a hanging very large kitchen hood, and made sure it was secured not only with the manufacturer recommendation but above and beyond. He also installed our very large heavy Iron Front Door. I highly recommend Owen you won't be disappointed."
Owen Allen
House remodel
House remodel
House remodel
House remodel

+30

Recommended by82%of homeowners
Avatar for Tipping Hat  Plumbing Heating & Electric, LLC
Tipping Hat Plumbing Heating & Electric, LLC
4.0(
436
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Highlands Ranch, CO and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"Installed new boiler and replaced all the plumbing in our basement (our house is 127 years old). They did a good job and worked hard to get our boiler replaced when the old one gave up the ghost in the winter. Also did a good job replacing all our plumbing in the basement and crawlspace in 2 working days. Kind of a strange name but don't worry, they are a really good plumbing and heating company and offer a 0% interest loan to pay for the bill."
Smart Tstat
High Efficiency Furnace
Humidifier
Standard Furnace
Furnace, Water heater and Air purifier

+16

Response time10 hrs
194 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Apple Aire Heating & Cooling
Apple Aire Heating & Cooling
4.5(
204
)
Gas Boiler or Radiator Heating System - Install

Serving Highlands Ranch, CO and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"The experience was great. Nate was very meticulous with his assessment of my existing system and explained what was needed and why. The were able to schedule me ahead of closing on my condo. And the installers did a great job."
High efficenty Lochinvar Knight Boiler
New Dunkirk boiler installed
Old boiler
Systems 1 and 2
System 2

+14

28 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 196
Install Boiler FAQs, answered by experts

In most cases, repairing a radiator is more affordable than replacing it. A typical repair may cost between $100 and $200, while a replacement can average $1,500, with a range of $250 to $2,500 depending on the unit type. Radiator issues are often simple fixes for a professional, such as a blown fuse, malfunctioning thermostat, or a loose valve, and can take less than an hour. However, if the long-term costs of fixing the radiator are higher than replacement, it's better to get a new model. It is recommended to consult a heating expert to diagnose the problem and determine the best solution for your situation.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

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.

The most important sign of a boiler problem is something happening unexpectedly, which is why regular boiler maintenance is important. Unexpected problems can include strange smells, new leaks, and unexpected noises that your boiler wasn’t making before. Additionally, if a boiler keeps shutting off or can’t maintain a specific temperature range, it’s time to call in an expert.

The Highlands Ranch, CO homeowners’ guide to boiler installation services

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