Top 10 Boiler Repair in Denver, CO
The best boiler repair companies in Denver, CO for 2026 include Applewood Plumbing Heating & Electric (4.8), A Better Plumber (an Absolute Plumbing Company) (4.8), Brothers Plumbing, Heating & Electric (4.7). All service gas, oil, and steam boilers with emergency repair available.
Boiler Repair in Denver, CO: Don't Wait for a Breakdown
Boiler issues in Denver, CO often show warning signs before a full failure — uneven heating, strange noises, or rising energy bills. Addressing problems early can save you from emergency repair costs and keep your home safe from carbon monoxide risks.
- Schedule annual boiler inspections before heating season starts
- Ask about carbon monoxide detector placement when the technician visits
- Get quotes for both repair and replacement if your boiler is 15+ years old
Advanced Boilers & Hydronic Heating
Blue Sky Plumbing, Heating, Cooling & Electric
Golden West Plumbing, Heating, Air Conditioning, and Electrical
Blue Sky Plumbing, Heating, Cooling & Electric
Simply Mechanical, AC, Furnace & Boiler Repair
Brothers Plumbing, Heating & Electric
Right Away Heating
Swan Plumbing, Heating & Air of Denver
Applewood Plumbing Heating & Electric
Heart Heating, Cooling, Plumbing & Electric
How We Ranked These Denver Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Denver market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does boiler repair cost in Denver?
Boiler repair in Denver typically costs $200-$600 for common issues. Circulator pump replacement runs $400-$800. A new boiler installed costs $5,000-$12,000.
How long do boilers last?
Gas boilers last 15-20 years, oil boilers 15-25 years. With annual maintenance, some boilers run 30+ years. If yours is over 15 and needing frequent repairs, consider replacement.
Is a boiler or furnace better?
Boilers provide more even heat and better humidity control. Furnaces heat faster and are easier to install. Boilers are common in older Denver homes and newer high-efficiency builds.