Boiler Repair, Replacement & Installation

Boilers are the heart of many home heating systems, supplying consistent warmth through radiators, baseboard heaters, or radiant floor systems. When a boiler isn’t operating correctly, it can lead to uneven heat, higher energy bills, or no heat at all. D.M. Kelly Mechanical provides expert residential boiler services, working on gas‑fired and hydronic boiler systems of all major brands. Whether your boiler needs repair, routine service, or full replacement, our technicians deliver safe, efficient, and code‑compliant solutions.

What We Offer

• Boiler Repair — Diagnosing and repairing ignition issues, pressure problems, leaks, circulation failures, and uneven heating

• Boiler Replacement — Removing outdated or failing boilers and installing modern, energy‑efficient systems properly sized for your home

• New Boiler Installation — Boiler installations for remodels, system upgrades, or homes converting to hydronic heating

• Hydronic Heating Support — Service for circulator pumps, expansion tanks, valves, and zoning controls connected to boiler systems

• Preventive Boiler Maintenance — System inspections, safety checks, and performance evaluations to extend boiler lifespan and efficiency

Signs You Need Service

• Inconsistent or uneven heat throughout the home

• Boiler making banging, rumbling, or whistling noises

• Radiators or baseboards not heating properly

• Fluctuating water pressure or frequent system resets

• Boiler leaks or visible corrosion

• Rising heating bills without increased usage

• Boiler system is 15–20 years old or older

Boiler issues often worsen if left unaddressed. Prompt service helps restore comfort, prevent system damage, and avoid costly emergency breakdowns during cold weather.

Common Questions

How long do residential boilers last? Most boilers last 15–25 years depending on system type, usage, water quality, and maintenance.

Should I repair or replace my boiler? If your boiler is older, requires frequent repairs, or no longer heats efficiently, replacement may be the better long‑term option. We’ll provide clear repair vs. replacement guidance.

Are modern boilers more energy efficient? Yes. Newer high‑efficiency boilers provide better performance, lower operating costs, and improved temperature control compared to older systems.

Can you service radiant floor or baseboard heating systems? Absolutely. We service boilers connected to radiant floor heating, baseboards, and radiators, including zoning and circulation components.

How long does boiler installation take? Most residential boiler replacements take 1–2 days depending on system complexity and any required piping or venting upgrades.