Pierce Systems Inc brings 26 years of HVAC and plumbing experience to Thornton, CO homeowners, multi-unit buildings and businesses. We work out of our Brighton headquarters and travel to Thornton for installation, repair and maintenance.
Call (303) 875-5957Get a Free Estimate

Thornton properties range from established homes to newer builds, and each has different heating, cooling and plumbing needs. We size equipment from an actual load calculation, check ductwork before installing and adjust gas appliances for Colorado altitude.
Whether you need a new furnace, a tankless water heater or a commercial plumbing repair, you get one licensed, insured team.
Nick Pierce and our technicians install and repair complete climate and plumbing systems built around how your building actually behaves. No commissioned sales pitches, just honest options and work that lasts.
Every service we offer is available in Thornton, for homes and businesses.
Load-calculated sizing, ductwork evaluation and clean installs of furnaces, heat pumps and central air. Most replacements are finished in a day.
Learn more →Seasonal tune-ups that catch worn parts early, protect efficiency and help avoid breakdowns in Colorado weather.
Learn more →Fast diagnosis and lasting repairs for heating and cooling systems, residential and commercial.
Learn more →Central air not cooling? We find the cause and fix it, with honest quotes before any work begins.
Learn more →Heat out or short-cycling? We repair gas furnaces and test combustion before we leave.
Learn more →Gas and electric tank water heater replacement, sized and vented correctly.
Learn more →Endless hot water with tankless installation, including gas line and venting requirements.
Learn more →Leaks, no hot water or strange noises. We repair it or tell you honestly when replacement makes more sense.
Learn more →New fixtures, water lines and whole-home repiping done cleanly, permitted and inspected.
Learn more →Leaks, clogs and failed fixtures repaired quickly, including drain clearing.
Learn more →Installation and replacement for restaurants, retail, offices and warehouses, scheduled around your hours.
Learn more →Residential and commercial plumbing solutions from a single licensed, insured team.
Learn more →A technician assesses your space and equipment, explains the options in plain language and gives you an honest price. Our crew protects your floors, tests the work and cleans up, and installations carry a written workmanship guarantee.

Reach us at (303) 875-5957 or the contact page.
We inspect your system and explain the options.
Floors protected, work tested, site cleaned up.
Written workmanship guarantee on installations.
We work on houses and multi-unit buildings as well as restaurants, retail, offices and warehouses. Larger commercial jobs are coordinated around your operating hours to keep disruption to a minimum. See our commercial plumbing page for details.
Read what customers say about us on Yelp.
Brighton is our headquarters. We also serve Northglenn, Thornton, Westminster and Broomfield, CO for homes, multi-unit buildings and commercial properties.
Yes. A technician assesses your space and existing equipment, explains your options in plain language and gives you an honest price.
Yes. We service homes as well as rooftop units, commercial boilers, tankless systems and drain lines, and we can work outside your business hours if needed.
Call (303) 875-5957 or use the contact page and we will get you on the schedule.
Call Pierce Systems Inc today or email npierce@piercesystemsinc.com for an honest price.
(303) 875-5957Contact Us74 Cisne Cir, Brighton, CO 80601