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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%
5 neighbors recently requested a quote
Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
87
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Highlands Ranch, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I called to get a third estimate on replacing my residential boiler. I was looking at replacing it because other contractors had advised that the cost of repairs was too high; repairing a 20 ye old boiler didn’t make economic sense. Gilles sent Justin over the next day, so very quick service. Justin gave me a ballpark price to replace it, which was more in line with what I thought was fair. He also gave me a very fair price to repair it — about a third of what the other contractors quoted. A good chunk money, but a much better option right now. Comparing what the three contractors told me, I’m confident that Justin had it all coveted. He then allowed me to video him, explaining what he did and what I should expect and look out for. He also sold me on their annual maintenance plan, which is a bargain because it includes evaporative cooler startup and shut down."
Mini Split Install
A nice, new, clean Boiler - restoring heat right in time for the evening!
Glad we were able to restore heat same day for this customer.  Replaced Furnace and A/C for proper installation, air flow and 10 year warranty on FULL SYSTEM.
Glad we were able to restore heat same day.   Full Boiler replacement, repipe and zone valves.
Mini Split Install

+67

20 neighbors recently requested a quote
Recommended by41%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 Highlands Ranch, 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
5 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 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%
71 neighbors recently requested a quote
Avatar for FerguSons Heating and Cooling LLC
FerguSons Heating and Cooling LLC
5.0(
7
)
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 2021

Free estimates

Emergency services offered

"My dad is elderly and needed a new HVAC system. So I decided to find a person who could install a new HVAC system and we found Cody. Cody was very friendly, honest, and communicated very well. At one point he told us we could probably go another 3-5 years with the current system, but since my dad only has so many years left we told he to go ahead and install a whole new system in. He treated us like gold and even spent the time showing my Dad all the new features with the thermostat. I would highly recommend Cody for any repairs or HVAC needs you have."
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+51

Response time2 days
Response rate100%
2 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

"We had an excellent experience with Controlling Systems from the first phone call to our install. All the professionals were prompt, friendly and hard working. We had a lot of questions throughout the process and they answered every one. The prices seem right in line with the industry and we were overall very happy with their work."
Additional Photos
Additional Photos
Additional Photos
8 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
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Install Boiler FAQs, 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.

When winter rolls around, and you turn the heat on for the first time in a year, it’s normal to sense a light odor. This could smell a little like burning because some dust has gathered in the heating unit over the warm months and will fade away shortly after. However, there are some smells you should watch out for and take caution around: an egg-like sulfur smell or an electrical burn odor would indicate there’s something wrong. Turn it off and call a professional for maintenance as soon as possible. 

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

On average, you’ll need about two gallons of oil per day to heat your house when it’s 50 degrees Fahrenheit outside. Most oil tank capacity is about 275 gallons, and heating your house with two gallons of oil per day will last about four and a half months. This consumption will vary depending on the climate and average temperature in your location. For example, if the winters are longer and colder where you live, you’ll probably need to refill your oil tank at least once to get through the winter.

Hydronic and standard electric baseboard heaters differ in how they operate, their cost, and their performance. Standard convection heaters use electric coils to heat the air directly, while hydronic heaters warm a contained liquid like water or oil, which then radiates heat into the room.

In terms of cost and efficiency, hydronic heaters usually have a higher upfront price but are more energy-efficient and cheaper to run over time. This is because the heated liquid retains warmth, allowing the heater to continue providing heat for a while after the thermostat turns it off. In contrast, electric heaters provide heat more quickly but are less efficient.

Ultimately, the better choice depends on your priorities. If you need a room to heat up fast and have a lower initial budget, an electric heater might be suitable. If long-term energy savings are more important and you don't mind a slower heat-up time, a hydronic heater is likely the better option.

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.