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    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.
9 neighbors recently requested a quote
Recommended by94%of homeowners
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 Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
63
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - Install

Serving Denver, 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

60 neighbors recently requested a quote
Recommended by55%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

"Initially I requested an estimate for a plumbing project already in progress with some challenges. Keith responded immediately to get details and schedule to come out to look at what was needed. He proposed a solution that eliminated any impact to walls or tile to replace old valves and faucets. He and his team completed the work on time and were neat and professional and results were better than I expected. There was no damage at all to what was old tile. I subsequently had him assess an old water heater and decided to replace it. It had to go into a very small areas and be upgraded to code and he was able to solution the replacement to fit perfectly in the limited space. Previously on the project we had noticed a periodic odor of gas but no one had verified a source. Keith identified a leak in the area of the furnace right next to the water heater. We had decided to upgrade the furnace and AC and again Keith and his team were able to get an order in quickly, get the install done exactly as committed and fixed the gas leak in the process. Based on the quality of work performed in each case and the expertise of the team I hired Plumbing Tree again to assess an old furnace and AC at my primary residence. The furnace had been failing at the end of the winter but I waited for summer to replace and it had deteriorated and was not safe. Keith evaluated and gave me two options and was able to get the order in immediately after I decided to go ahead. He scheduled the install within a few days. His crew was on time and completed the install of furnace and AC in one day. Again they were neat, efficient, described all the changes from the old furnace and thermostat to the new and answered all my questions. Everything has been functioning just as I expected for both heat and AC. I recommend Plumbing Tree for these services based on quality and reliability - also cost was competitive and the team they used had the expertise required. Additionally they were easy to work with and I plan to use them again on another project. Thanks Keith and team- I appreciate the quality work!"
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

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
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Install Boiler questions, answered by experts

The cost of heating oil fluctuates rapidly based on supply and demand, but the average price is between $4.00 and $4.50 per gallon, which means filling a standard 275-gallon tank would cost between $1,100 and $1,240. Much like automotive gasoline, the price of home heating oil changes constantly, so the only way to get an accurate and current price per gallon is to contact a heating oil delivery company. Some companies also offer contracts with a set price that should be an average cost over the contract term.

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

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.

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

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 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.