American Boiler & Mechanical
REGISTEREDPlumbing/Heating & A/C Contractors · Saint Louis, MO
American Boiler & Mechanical is currently registered as a construction contractor with the State of Iowa under registration number C132550, last issued or renewed 2026-07-02 and current through 2029-06-30. Iowa registration confirms compliance with state labor law. It is not a license, and the State does not assess skill.
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This contractor is based in MO and holds an Iowa contractor registration, which is required to perform construction work in Iowa.
American Boiler & Mechanical at a glance
- What they do
- Planning, Design & Installation · Comprehensive Refractory Services · Reliable Boiler Maintenance & Repair · Professional Insulation Services · Precision Combustion System Analysis · New and Used Boiler Services · Reliable Boiler Rentals · Efficient Planning, System Design & Installation Business website
- Registered in
- Saint Louis, MO State record
- Business address
- 4950 Bischoff Ave, St. Louis, MO 63110 Google Maps
- Hours posted
- Open Mon, Tue, Wed, Thu, Fri Google Maps
- Phone
- (314) 865-3000 State record
- Website
- abmstl.com Business website
- Check the registration
- No. C132550, current, verify with the State State record
State registration
- Registration number
- C132550
- Status
- Registered
- Issued / last renewed
- 2026-07-02
- Expires
- 2029-06-30
- Primary trade
- Plumbing/Heating & A/C Contractors
- Issuing authority
- DIAL
Sourced from the Active Iowa Construction Contractor Registrations (Iowa Code ch. 91C), last updated 2026-09-14. Verify this registration with the State of Iowa. How to check a registration yourself.
About American Boiler & Mechanical
From abmstl.com
Discover top-notch commercial boiler services and HVAC solutions to enhance efficiency and reliability in your operations. Contact us today!
- Emergency service
Services listed on their website
- Planning, Design & Installation
- Comprehensive Refractory Services
- Reliable Boiler Maintenance & Repair
- Professional Insulation Services
- Precision Combustion System Analysis
- New and Used Boiler Services
- Reliable Boiler Rentals
- Efficient Planning, System Design & Installation
- Custom Process Piping Insulation
- Website:
- abmstl.com
- Other number on their website:
- (800) 235-5377
Read from the business’s own website (abmstl.com). We have not verified it and this business has not claimed this listing. Is this your business? Claim it free to edit or remove anything here, or request a correction.
American Boiler & Mechanical on Google
Google MapsExact match to state record
Business name and phone number match this contractor’s state registration. It confirms this Google listing is the same business; it is not owner verification, a license, insurance or an endorsement.
4.6 ★ (14 Google reviews) · General Contractor
- Website listed on Google: americanboilermech.com
- St. Louis, MO
- Business address on Google:
- 4950 Bischoff Ave, St. Louis, MO 63110
- Phone:
- the number on file with the State matches this Google listing
Hours on Google
- Monday: 7:00 AM to 4:00 PM
- Tuesday: 7:00 AM to 4:00 PM
- Wednesday: 7:00 AM to 4:00 PM
- Thursday: 7:00 AM to 4:00 PM
- Friday: 7:00 AM to 4:00 PM
- Saturday: Closed
- Sunday: Closed
- Wheelchair-accessible parking
- Wheelchair-accessible entrance
Google reviews
A selection supplied by Google, ordered by relevance. Reviews containing contact details or unsupported credential claims are omitted.
5 ★ · Pamela Harrison · Jul 2026
I called at ten in the morning and when aI told them it couldn’t wait until Monday-even though it was Forth of July holiday weekend- they were there before 1 pm. Fixed my issues in the extreme heat. A great company!
View review on Google Maps5 ★ · Scott Loethen · Apr 2022
Amazing work by Tim, Steve (Reinhold), Mark (Reinhold). These professionals did amazing thing to some new and some "gently" used equipment. They fixed things, built other things, and got the lab running again. We have been working with them for 2 weeks and they will be the first (and likely only) call we make for future electrical or mechanical work.
View review on Google Maps5 ★ · Luke Hermes · Oct 2021
American Boiler is great company with great character. They serviced one of our units a few weeks back. The problem came back later on but American Boiler went above and beyond to make things right and fair! Their integrity as a company has ensured we will use them again in the future!
View review on Google Maps4 ★ · Allen brown · Feb 2018
Good service great selection of parts
View review on Google Maps5 ★ · Heather Marie · Oct 2022
Highly recommend this company!
View review on Google Maps
From Google Maps, as of Sep 2026. We have not verified it and this business has not claimed this listing. Is this your business? Claim it free or request a correction.
What American Boiler & Mechanical is registered to do
The State classifies American Boiler & Mechanical as plumbing/heating & a/c contractors. That classification comes from the registration itself, not from us. It describes the work the business registered to perform, and it is not an assessment of skill or a limit on what they may quote for.
2026-07-02
registration last issued or renewed with the State
1,309
registered plumbing/heating & a/c contractors in Iowa, this business among them
plumbing, HVAC & mechanical work is separately licensed in Iowa. The registration above is a compliance filing; the Iowa Plumbing & Mechanical Systems Board ↗ runs the exam that actually tests competence. Ask for the license number and check it there, for this trade it is the strongest signal available.
All 1,309 registered plumbing/heating & a/c contractors in Iowa →
Sources for this profile
- Registration: Active Iowa Construction Contractor Registrations, last updated 2026-09-14. Verify registration C132550
- About the business: read from its website, abmstl.com. Not written or confirmed by the business.
- Google details: Google Maps, as of Sep 15, 2026. Not verified by us.