Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Denver, CO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Tankless water heater installers in Denver - Updated Nov 2026

Avatar for Honest Plumbing, LLC
Honest Plumbing, LLC
4.8(
55
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Joe did the plumbing portion of our tankless electric hot water heater project. Their pricing was very competitive, follow up was always good, and the installation was on time and very professionally done. I would strongly consider Honest Plumbing again for my future plumbing needs."
Tankless
tankless
before
after
after

+26

Response time1 day
Recommended by100%of homeowners
Avatar for American Plumbing & Sewer LLC
American Plumbing & Sewer LLC
4.9(
142
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"We had a tankless water heater installed. Customer service was fantastic. Lanney and his wife, who own this small business, were so enjoyable to work with. Their price was reasonable. Iâ d highly recommend them. Donâ t look any further you want this family owned business to take care of you. Lillian Gahring"
Response time6 hrs
Response rate99%
30 neighbors recently requested a quote
Avatar for Water Heater Colorado LLC
Water Heater Colorado LLC
5.0(
5
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"Andon and his co-worker did a great job. They were on time and very pleasant. Andon took the time to go over everything they would be doing to replace my hot water heater. He gave me an estimated time frame and completed the job on time. They cleaned up after themselves and walked me through the system so I would know you to use it. They are very professional and I would highly recommend them."
Water Heater Installation
Water Heater Installation
Water Heater Installation
Water Heater Installation
Water Heater Installation

+9

Response time2 hrs
Response rate100%
Recommended by40%of homeowners
Avatar for Service Made Easy, LLC
Service Made Easy, LLC
5.0(
19
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Kris and his team are absolutely phenomenal, my husband and I have been working with him for years on several different projects now. He most recently installed a new water heater, toilets, and shutoff valves for me. I can’t recommend him enough, he’s the best!"
Gallery
Gallery
1 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for WARM WELCOME HEATING, COOLING, & PLUMBING LLC
WARM WELCOME HEATING, COOLING, & PLUMBING LLC
5.0(
12
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

Warm Welcome Plumbing, Air & Electric is a family-owned home service company based in Westminster, serving homeowners across the Denver metro, from Highlands Ranch and Aurora to Evergreen and the foothills. Owner Ty Lindsay has 25 years in the trades and holds master plumber and HVAC licenses, and our roots go back to Hot Water Now, a Denver tankless water heater specialist since 2006.\n\nWe handle tankless and tank water heaters, boilers and hydronic heat, furnaces, heat pumps, AC and mini splits, water softeners and filtration, drain cleaning, and electrical work from panel upgrades to EV chargers.\n\nEvery job is backed by our 2-year, 100% parts, labor, and workmanship warranty, and we honor all manufacturer warranties. We take eligible Xcel Energy rebates right off your invoice, and financing is available through Service Finance, including 12 months with no interest and no payments. Calls are answered 24/7, with Saturday appointments for plumbing and electrical.

Logo
Dual Rinnai Units
Dual Tankless Units
Basement Tankless
Rinnai Tankless

+33

11 neighbors recently requested a quote
Avatar for Pure Water Services
Pure Water Services
4.8(
15
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Our hot water heater went out recently. It was 12 years old, so we knew we needed a new one. It took quite a bit of research to find a reputable company that didn’t have exorbitant prices. Other businesses told us things like: we needed all new pipes. (We didn’t.) A new hot water heater would be $3,000 to $5,000 plus labor on the of that. ( way overpriced), etc. Finally, we found an excellent smaller local company. We went with Pure Water Services in Loveland. They’re honest, reasonably priced, and absolute pros. They were able to get us scheduled for a new hot water heater within days . Their master plumber Patrick was courteous, extremely knowledgeable, and very thorough. Patrick is an impressive and experienced plumber. Alexander keeps in touch daily with every step of your project repair. I was impressed with how kind, and professional he is to customers. We are so thankful to have hot water again. They stand by their work. My husband and I highly recommend them!"
Bradford White Water Heater
Response time1 day
Response rate95%
32 neighbors recently requested a quote
Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.7(
92
)
Tankless Water Heater - Install

Serving Denver, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Professional, efficient, and very high quality work. Heart has performed multiple major projects for us (replacing furnace, water heater, humidifier, and now AC system) and I would absolutely recommend them for any similar work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

11 neighbors recently requested a quote
Recommended by81%of homeowners
...
Showing 1-10 of 243

The Denver, CO homeowners’ guide to tankless water heater installations

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