Plumbing & HVAC in Longmont, CO
From quick repairs to full system installations, we bring dependable plumbing and HVAC service to Longmont homeowners. You'll get genuine, honest advice and clean workmanship every time.
Serving Longmont
Plumbing & HVAC help for Longmont homes
Longmont sits at the south end of our service area, and it has one of the more varied housing mixes we work in. The older core near Main Street includes homes with original drain stacks and heating systems that have been adapted more than once; the newer subdivisions east and south are modern throughout.
A fair number of Longmont homes we see still run boilers and radiant heat rather than forced air, which is a different maintenance conversation entirely — and a different failure mode when something goes wrong on a cold night. We service both, and we're upfront about which repairs are worth doing on an aging system and which are money spent on borrowed time.
Boilers and radiant systems
Boilers are more common in Longmont's older housing than in most of our service area. They're durable, but they need annual attention — expansion tank, pressure relief, circulator and combustion all want checking — and when they fail in January they fail completely. Maintenance genuinely pays for itself here.
Storm and drainage history
Parts of the area have a real flooding history, and a lot of homeowners have added sump pumps since. A sump pump is one of the few things in a house that only matters on the worst day of the year, which is exactly why it's worth testing before you need it and keeping a battery backup on it.
Permitted work in Longmont goes through the City of Longmont; nearby unincorporated addresses fall under Boulder or Weld County depending on where you sit. We confirm the jurisdiction before scheduling anything that needs an inspection.
What we do here
Our plumbing & HVAC services in Longmont
From emergency repairs to new installations, here's how Rock Solid Plumbing helps Longmont homeowners stay comfortable year-round.
Good to know
Common questions from Longmont homeowners
Do you service boilers in Longmont?
Yes — boiler repair, replacement and annual maintenance are all standard work for us, and we offer a boiler maintenance plan for exactly this reason. Older boilers reward regular servicing more than almost any other system in a house.
Should I have a battery backup on my sump pump?
If the pump is protecting a finished basement, yes. Sump pumps get their hardest work during storms, and storms are also when the power is most likely to go out. A backup is inexpensive relative to what it protects.
Is Longmont within your normal service area?
It is. Longmont, Mead, Niwot and the surrounding communities are all on our regular route, including after-hours emergency calls.
Local & dependable
Why Longmont trusts Rock Solid Plumbing
As a family-owned company based nearby in Loveland, we're never far away when Longmont needs fast, honest plumbing and HVAC service.
Family Owned & Operated
24/7 Emergency Service
Licensed & Insured
Free Estimates
5-Star Rated
Honest, Upfront Pricing
Reviews
What our customers say
Rated 4.9 stars by Northern Colorado homeowners.
“Our AC stopped working and it was 4pm on July 3rd. I called and they were at the house and had it working by 6PM. great service”
“Outstanding customer service. The plumber that installed my water heater was very competent.”
“Rock Solid Plumbing Heating & Air are 5 !! Bill was amazing and highly recommended them for all your AC needs!!”
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24/7 Emergency Service for Longmont and the surrounding area. Call (970) 232-8602 for fast, honest service.






