Streamline Plumbing, LLC, Longmont, CO: Backflow Testing

Approvals

✓ On the City of Longmont list✓ On the Town of Berthoud list Phone matches its Google profile

City of Longmont backflow tester contact list, as of July 7, 2026. Being on this list means the utility lets the company file backflow test reports in its water system; it is not a state license.
Town of Berthoud backflow inspection and testing companies (tested in 80513), as of April 24, 2026. Being on this list means the utility lets the company file backflow test reports in its water system; it is not a state license.

Ask for the certificate number of the tester who will do your test, and check that your own water utility accepts reports from this company.

Call (303) 772-2250 Visit website More testers in Colorado

Price reports

What a backflow test costs in Longmont

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Published prices nationwide

$29.99 to $100 per assembly

$0$25$50$75$100$125

Based on 14 published prices · Read Oct 2026 Prices testing businesses list on their own websites, from our cost guide. Listed prices, not what people paid.

Every published price, with its source: what a backflow test costs.

Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.

What Streamline Plumbing, LLC's website says

Services listed on Streamline Plumbing, LLC's website, read October 11, 2026: backflow testing, backflow repair, backflow installation and replacement, general plumbing and water heaters. streamlineplb.com, streamlineplb.com/services/comprehensive-plumbing-services, streamlineplb.com/services/water-heater-installation

It says	Details	Page
Service area	Longmont, Broomfield, Berthoud, Loveland, Fort Collins, Johnstown, Louisville, Estes Park, Erie and Frederick	streamlineplb.com
Emergency service	Offered, it says (hours not stated)	streamlineplb.com/services/comprehensive-plumbing-services

Read on streamlineplb.com on October 11, 2026 (3 pages). This is what the business says about itself.

Where you will find Streamline Plumbing, LLC

These are the city pages close enough for this business to appear on.

Longmont, CO(under 1 mi)
Berthoud, CO(12 mi)
Thornton, CO(16 mi)
Westminster, CO(17 mi)
Loveland, CO(20 mi)
Denver, CO(29 mi)
Fort Collins, CO(30 mi)
Aurora, CO(30 mi)

Other backflow testers nearby

Business	Services	Distance
Solid Grounds Inc.	Backflow Testing	under 1 mi
Wards Lawn Service, Inc	Backflow Testing	2 mi
Pro Service Co	Backflow Testing	4 mi
Freedom Fire Protection, LLC	Backflow Testing	4 mi
Maddison Mechanical Inc	Backflow Testing	4 mi
Ramey Environmental Compliance	Backflow Testing	5 mi

Questions about Streamline Plumbing, LLC

Is Streamline Plumbing, LLC approved to test backflow assemblies?

Streamline Plumbing, LLC is on the City of Longmont list and Town of Berthoud list, as of July 7, 2026. That means the utility lets the company file backflow test reports in its system; it is not a state license. Ask for the tester's certificate number before the test.

What does Streamline Plumbing, LLC do?

Their listing covers backflow testing. Call to confirm the service you need, because offerings change.

What areas does Streamline Plumbing, LLC serve?

They are based in Longmont, Colorado, within driving distance of Longmont, Berthoud, Thornton, Westminster, Loveland. Its website names Longmont, Broomfield, Berthoud, Loveland, Fort Collins and Johnstown and 4 more places as areas it serves (read October 11, 2026).

How do I reach Streamline Plumbing, LLC?

Call (303) 772-2250. Their website is linked on this page.

Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.

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