State licence
CO contractor licensing
Check the licence with the state board before work starts.
Open the official lookup →Water treatment service near me
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Water treatment service in Denver, CO
There are 28 verified water firms listed in Denver, CO. Listings are compiled from public business records and checked against the CO contractor licensing; each record shows the date it was last verified.
Verified listings28 verified listingsSpring band $2,500–$6,000CO licence + Denver permit links
Information last verified: 8 November 2026. Dataset compiled 8 November 2026.
What qualifies as a listing
Sewer lines in Denver
Water treatment service work in Denver follows the same pattern as the rest of CO: the failure mode decides the method, not the other way round.
Permit rules in Denver are set locally. Ask the city whether your job needs a permit and who pulls it.
What water work costs in Denver
The national range is from the site’s cost guide, checked 2026-11-08. The local column applies the 1.00× metro factor and rounds to $5. It is a planning band, not a quote.
| Job | National range | Denver planning band | What it includes |
|---|---|---|---|
| Whole-house softener, installed | $2,500–$6,000 | $2,500–$6,000 | Typical US range |
| Whole-house filtration | $3,500–$9,000 | $3,500–$9,000 | Typical US range |
| Well tank replacement | $1,200–$2,800 | $1,200–$2,800 | Typical US range |
| Well pump replacement | $900–$2,200 | $900–$2,200 | Typical US range |
| Reverse osmosis, installed | $3,500–$8,000 | $3,500–$8,000 | Typical US range |
| Annual service, no salt | $150–$400 | $150–$400 | Typical US range |
Editorial metro factor, not a measured price index. The factor is not a measured local price index; it estimates labour and permit overhead. A quote that is far below the band usually has a smaller scope, not a better price.
Licence and permit checks for Denver
Local permit
Denver permit office
Ask whether the job needs a permit and who pulls it.
Open the permit office →These links go to the official state or city page. The directory does not file permits and does not verify a contractor’s current insurance for you.
Sewer line firms in Denver, CO
28 verified records. The order is the dataset order, not a ranking. Each card shows the date its record was last verified.
Verified
Kinetico Advanced Water Systems of Denver
Water treatment service contractor
- Address
- 2505 W 2nd Ave
Denver, CO - Phone
- (720) 340-4954
- Website
- Not published
- Rating
- 4.9 / 5 · 190 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Rocky Mountain Water Conditioning
Water treatment service contractor
- Address
Denver, CO- Phone
- (888) 741-1711
- Website
- Not published
- Rating
- 5.0 / 5 · 80 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Water Works - Water Purification Company
Water treatment service contractor
- Address
- 7285 S Revere Pkwy
Denver, CO - Phone
- (303) 248-3390
- Website
- Not published
- Rating
- 5.0 / 5 · 79 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Pure Water Choices
Water treatment service contractor
- Address
- 3034 Pleasant View Dr
Denver, CO - Phone
- (720) 219-7818
- Website
- Not published
- Rating
- 5.0 / 5 · 186 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
L&L Systems Inc.
Water treatment service contractor
- Address
- 7727 W 6th Ave
Denver, CO - Phone
- (303) 225-0961
- Website
- Not published
- Rating
- 4.8 / 5 · 1819 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Water Pros
Water treatment service contractor
- Address
- 401 N Laredo St
Denver, CO - Phone
- (303) 862-5554
- Website
- Not published
- Rating
- 4.8 / 5 · 64 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Aqua Serve
Water treatment service contractor
- Address
- 6991 W 117th Ave
Denver, CO - Phone
- (303) 469-7873
- Website
- Not published
- Rating
- 4.8 / 5 · 174 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
GeoWater Services LLC
Water treatment service contractor
- Address
- 30476 Bryant Dr
Denver, CO - Phone
- (720) 861-0944
- Website
- Not published
- Rating
- 4.7 / 5 · 195 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Aquakleen Colorado *****
Water treatment service contractor
- Address
- 8461 Turnpike Dr
Denver, CO - Phone
- (303) 500-5120
- Website
- Not published
- Rating
- 5.0 / 5 · 502 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Leaf Home Water Filtration
Water treatment service contractor
- Address
- 4660 N Ironton St
Denver, CO - Phone
- (983) 207-8701
- Website
- Not published
- Rating
- 4.8 / 5 · 110 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Water Filter Guru
Water treatment service contractor
- Address
- 600 17th Street
Denver, CO - Phone
- (970) 658-0543
- Website
- Not published
- Rating
- 5.0 / 5 · 30 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Culligan of Denver
Water treatment service contractor
- Address
- 4300 S Windermere St
Denver, CO - Phone
- (303) 347-1100
- Website
- Not published
- Rating
- 4.4 / 5 · 437 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Eco Water Services
Water treatment service contractor
- Address
Denver, CO- Phone
- (303) 862-5350
- Website
- Not published
- Rating
- 4.6 / 5 · 9 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
PureWater Dynamics, Inc.
Water treatment service contractor
- Address
- 30 Kalamath St
Denver, CO - Phone
- (303) 922-4383
- Website
- Not published
- Rating
- 4.0 / 5 · 36 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Bates Water Pros LLC
Water treatment service contractor
- Address
- 302 W Main St
Denver, CO - Phone
- (970) 618-2214
- Website
- Not published
- Rating
- 5.0 / 5 · 66 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Clean Water Co
Water treatment service contractor
- Address
- 4759 Town Center Dr
Denver, CO - Phone
- (800) 402-4857
- Website
- Not published
- Rating
- 4.8 / 5 · 469 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Water Filtration Services, LLC
Water treatment service contractor
- Address
- 350 Bedford St
Denver, CO - Phone
- (508) 946-1301
- Website
- Not published
- Rating
- 5.0 / 5 · 154 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Good Water Company
Water treatment service contractor
- Address
- 607 S Gilbert St
Denver, CO - Phone
- (303) 841-4300
- Website
- Not published
- Rating
- 4.7 / 5 · 50 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Home Water Solutions, LLC
Water treatment service contractor
- Address
- 8700 Grant St
Denver, CO - Phone
- (970) 986-4264
- Website
- Not published
- Rating
- 4.3 / 5 · 119 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
ClearView Water - Denver Water Cooler Service Office
Water treatment service contractor
- Address
- 1627 Vine St
Denver, CO - Phone
- (303) 801-7031
- Website
- Not published
- Rating
- 4.9 / 5 · 59 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Aquafeel Solutions Colorado
Water treatment service contractor
- Address
- 544 Vista Blvd
Denver, CO - Phone
- (720) 414-5384
- Website
- Not published
- Rating
- 5.0 / 5 · 32 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Denver Winwater
Water treatment service contractor
- Address
- 8331 Pontiac St
Denver, CO - Phone
- (303) 214-3346
- Website
- Not published
- Rating
- 5.0 / 5 · 66 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Colorado Water Resources
Water treatment service contractor
- Address
- 1580 Logan St
Denver, CO - Phone
- (303) 830-1550
- Website
- Not published
- Rating
- 5.0 / 5 · 1 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
AquaWorks DBO, LLC.
Water treatment service contractor
- Address
- 3252 N Williams St
Denver, CO - Phone
- (303) 477-5915
- Website
- Not published
- Rating
- 5.0 / 5 · 12 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Ed's Sewer and Water Repair
Water treatment service contractor
- Address
- 1624 Market St
Denver, CO - Phone
- (303) 513-1233
- Website
- Not published
- Rating
- 4.8 / 5 · 45 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Denver Wastewater Management
Water treatment service contractor
- Address
- 2000 W 3rd Ave
Denver, CO - Phone
- (303) 446-3400
- Website
- Not published
- Rating
- 4.1 / 5 · 34 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Water Quality Control Division
Water treatment service contractor
- Address
- 4300 Cherry Creek S Dr
Denver, CO - Phone
- (303) 692-3500
- Website
- Not published
- Rating
- 5.0 / 5 · 2 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Firms in Denver, CO are shown in the order supplied by the dataset, not by rating or payment. No placement is sold. Each name opens that firm’s own profile page.
How this list was built
The directory starts from public business records: the firm’s own website, its published address and phone number, and the state or city licence register named above. A record is marked verified only when a person has checked the name, address, phone and licence against those sources and recorded the date. The place_id field is kept so a future rebuild can match the same entity without guessing.
The national cost band comes from the site’s cost guide. The metro factor is an editorial estimate, not a survey. No rating, review text, price or availability is invented for a verified page; where a public rating is shown it is attributed and dated.
If a record is wrong, the firm can ask for a correction or removal.Corrections: contact@watertreatmentpro.com. Read the fulllisting verification method.
Water treatment service in Denver: common questions
How many water firms are listed in Denver?
28 verified water firms are listed in Denver, CO. 0 publish a website, and 27 records have been verified. The city page is generated only because the dataset contains at least one genuine listing record; a city with no record has no page.
What does water treatment service cost in Denver?
The directory’s planning band for a torsion spring replacement is $2,500–$6,000. It is the national range ($2,500–$6,000, checked 2026-11-08) multiplied by an editorial metro factor of 1.00 and rounded to $5. It is an estimate, not a local price survey, and not a quote. Get three written quotes for the same scope.
Does CO license water contractors?
Check the licence with the state board before work starts. The official lookup is the CO contractor licensing, linked on this page. A licence or registration number is a starting point, not a substitute for checking insurance and the scope of the work.
Do I need a permit for a water in Denver?
Ask whether the job needs a permit and who pulls it. The permit office is the Denver permit office, linked on this page. If the contractor says no permit is needed, ask them to put the reason in writing.
Water treatment service near Denver
The closest metros in this directory, by straight-line distance. Each link opens that city’s own cost, licence and permit page.
Guides for Denver homeowners
What water treatment service costs
Installed ranges by job, and the five lines every quote should show.
Read the guide →Diagnose the problem first
Symptom to cause, what proves it, and what not to do first.
Read the guide →How to choose a contractor
Licence, insurance, warranty and the questions that expose a thin scope.
Read the guide →Compare the options
Repair, replace or change the opening — decided on scope and five-year cost.
Read the guide →Browse the whole directory.
All service areas ·All CO service areas ·Cost guides ·Methodology