Maddison Mechanical Inc
Backflow testing. 4161 Mulligan St, Longmont, CO 80504
Approvals
Price reports
What a backflow test costs in Longmont
Not enough reports yet for Longmont to show a range. Be one of the first: it takes a minute and stays anonymous.
Published prices nationwide
$29.99 to $100 per assembly
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 Maddison Mechanical Inc's website says
Services listed on Maddison Mechanical Inc's website, read October 11, 2026: general plumbing and water heaters. maddisonmechanical.com
| It says | Details | Page |
|---|---|---|
| 24-hour service | Offered, it says | maddisonmechanical.com |
| Licences, certifications, memberships | Licensed plumbers | maddisonmechanical.com |
Read on maddisonmechanical.com on October 11, 2026 (3 pages). This is what the business says about itself; we have not checked the credentials it names with the issuing body.
Where you will find Maddison Mechanical Inc
These are the city pages close enough for this business to appear on.
- Longmont, CO(4 mi)
- Berthoud, CO(9 mi)
- Loveland, CO(16 mi)
- Thornton, CO(20 mi)
- Westminster, CO(21 mi)
- Fort Collins, CO(26 mi)
- Aurora, CO(32 mi)
- Denver, CO(32 mi)
Other backflow testers nearby
| Business | Services | Distance |
|---|---|---|
| Freedom Fire Protection, LLC | Backflow Testing | under 1 mi |
| Wards Lawn Service, Inc | Backflow Testing | 4 mi |
| Solid Grounds Inc. | Backflow Testing | 4 mi |
| Streamline Plumbing, LLC | Backflow Testing | 4 mi |
| Ramey Environmental Compliance | Backflow Testing | 7 mi |
| Pro Service Co | Backflow Testing | 7 mi |
Questions about Maddison Mechanical Inc
Is Maddison Mechanical Inc approved to test backflow assemblies?
Maddison Mechanical Inc is on the City of Longmont 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 Maddison Mechanical Inc do?
Their listing covers backflow testing. Call to confirm the service you need, because offerings change.
What areas does Maddison Mechanical Inc serve?
They are based in Longmont, Colorado, within driving distance of Longmont, Berthoud, Loveland, Thornton, Westminster. Service areas are set by the business, so confirm yours when you call.
How do I reach Maddison Mechanical Inc?
Call (303) 862-5319. Their website is linked on this page.
Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.
Is this your business?
Claim this listing free: add the utilities you file with, your service area and your residential test price, and get annual test-due requests from property owners.
Claim this listing