Centennial Plumbing and Heating: Your Boulder, CO Home Comfort Experts
For homeowners and businesses across Boulder County and the Front Range, Centennial Plumbing and Heating is a trusted name for reliable plumbing and HVAC service. Founded right here in Boulder, CO by master plumber Mark Posthumus, this company brings decades of combined experience to every job, from a simple faucet repair to a full heating system replacement.
Business Overview
Centennial Plumbing and Heating focuses on residential and commercial service in the Boulder area. They understand how Boulder's climate—with cold, snowy winters and variable mountain temperatures—puts extra demand on heating systems and plumbing. That's why they offer 24/7 emergency service on weekends, knowing a burst pipe or a failed furnace can't wait until Monday.
Their team of skilled technicians handles everything from routine inspections to complex installations. They work on all types of homes, from older Boulder bungalows to new builds in nearby communities.
Key Services
Centennial Plumbing and Heating provides a full range of home services. For many local residents, their most common needs include:
- Heating & Cooling: HVAC installation, replacement, and repair for furnaces and air conditioners.
- Water Heaters: Installation and repair of traditional and tankless water heaters.
- General Plumbing: Repair, installation, and replacement for toilets, sinks, faucets, and garbage disposals.
- Home Comfort Upgrades: Specialized services like hot water recirculation pump installation to eliminate wait times for hot water.
- Plumbing Inspections: Important for older homes or before property purchases.
Areas Served
Centennial Plumbing and Heating proudly serves a wide area centered on Boulder, CO. Their technicians are familiar with the housing styles and common issues found from Louisville and Lafayette up into the mountain towns like Nederland and Estes Park, and east to communities like Windsor and Evans. They know the local building codes and what works best in our region.
Company History & Leadership
The company's story starts with Mark Posthumus, a master plumber who established the business in Boulder. His hands-on background means the company is built on technical skill and practical problem-solving, not just sales. Over time, Centennial Plumbing and Heating has grown to serve more communities, but it remains rooted in the straightforward, quality work its founder is known for.
Specialties & Highlights
A few things make Centennial Plumbing and Heating stand out for Boulder area customers:
- Founder-Led Expertise: Direct oversight from a master plumber with deep local experience.
- Broad Service Range: They handle both plumbing and HVAC, so you can call one company for many home systems.
- Focus on Replacements & Remodels: They are particularly skilled in water heater and boiler replacements, and can assist with kitchen and bath remodeling projects.
- Weekend Emergency Availability: 24-hour service on Saturdays and Sundays provides peace of mind.
Why Locals Choose Centennial Plumbing and Heating
People in Boulder and the surrounding towns choose Centennial Plumbing and Heating for a simple reason: they get the job done right. The combination of long-standing local presence, founder-level expertise, and a wide service area means customers receive dependable, knowledgeable service. Whether it's fixing a winter heating emergency in Gunbarrel or installing a new water heater in Lyons, they provide the reliable quality that Colorado homes deserve.
Contact Information
Centennial Plumbing and Heating
: 4975 Kelso Rd, Boulder, CO 80301
Business Services
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- HVAC installation or replacement
- HVAC system repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Toilet installation
- Water heater installation
- Water heater repair
Business Location & Hours
| Mon: | 8:00 AM - 5:00 PM |
| Tue: | 8:00 AM - 5:00 PM |
| Wed: | 8:00 AM - 5:00 PM |
| Thu: | 8:00 AM - 5:00 PM |
| Fri: | 8:00 AM - 5:00 PM |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |

