A sudden heat outage, leaking relief valve, or knocking radiator loop can make your home uncomfortable during cold Maryland winters. Stang Plumbing & Heating provides fast, reliable boiler repair in Gaithersburg, MD to restore your hydronic heating system quickly. From faulty circulation pumps and clogged gas burners to short-cycling controls and low system pressure, our licensed plumbers accurately diagnose the root cause and deliver lasting repairs to keep your home warm.
Trusted across Montgomery & Frederick Counties with top customer ratings since 1989.
Family-owned craftsmanship serving Maryland residential plumbing systems since 1954.
Fully licensed, bonded and insured master plumber/gasfitter (MD State License #61353 and WSSC License #71981).
Honest time-and-materials pricing with clear cost guidance and no hidden fees or sales pressure.
Professional boiler repair identifies and fixes mechanical failures, electrical sensor faults, circulator pump lockups, and gas burner issues to restore your heating system safely. Licensed plumbers test operating controls, inspect expansion tanks, bleed air lockouts from baseboard loops, and check combustion venting to ensure balanced heat flow across your home. Choosing Stang Plumbing & Heating for your boiler repair in Gaithersburg, MD ensures direct Master Plumber oversight, honest time-and-materials billing, and reliable heating restoration.
Our plumbing and heating teams arrive equipped with combustion analyzers, pressure gauges, replacement zone valves, expansion tanks, high-head circulator pumps, and safety controls.
LOCAL SERVICE
Quick response when boilers shut down completely during winter cold snaps.
Fixes cold radiator sections, noisy baseboards, and lagging heating zones.
Resolves leaking valves, failing expansion tanks, and corroded pipe fittings promptly.
Restores burner combustion balance and circulator efficiency to stop fuel waste.
As a family-owned local business, we treat your home with the care it deserves. We combine over 70 years of hands-on plumbing expertise with honest time-and-materials pricing, clear base estimates, and direct communication with knowledgeable local professionals every time you call
LOCAL SERVICE
We make solving your plumbing issues hassle-free with direct phone support and knowledgeable, experienced plumbers who provide dependable solutions for your home.
Take a look at our recent residential installations, pipe repairs, water heater replacements, and system upgrades completed across Central Maryland.
See how our commitment to honest rates, tidy job sites, and personalized service has earned the trust of homeowners across Maryland.
Our licensed technicians provide boiler diagnostics, repairs, and seasonal maintenance for homeowners throughout Central Maryland.
Keep your household infrastructure operating smoothly with our full line of specialized services:
Professional sizing and precision installation of modern, high-efficiency steam and hot water boiler systems from leading heating manufacturers.
| Feature / Consideration | Professional Boiler Repair | Complete Boiler Replacement |
|---|---|---|
| Primary Target Issue | Isolated component failures such as faulty pumps, bad zone valves, air locks, or bad switches | Major vessel leaks, cracked heat exchangers, severe scale buildup, or units past 15–20 years of age |
| Scope of Work | Diagnostic testing and replacement of specific electrical or hydronic control components | Full disconnect of old boiler, structural repositioning, and complete manifold piping hookup |
| Downtime & Complexity | Fast turnaround; most repairs are completed within a single service visit | Involves full system drainage, flue venting updates, and multi-zone commissioning |
| Cost Consideration | Low to moderate investment using transparent time-and-materials billing | Larger capital investment providing 15–30 years of fresh hydronic heating operation |
Find clear, straightforward answers about our residential repair services, transparent time-and-materials pricing, emergency response availability, and service areas across Central Maryland.
Loud knocking (often called “kettling”) is typically caused by mineral scale buildup inside the heat exchanger or restricted water flow from a failing circulator pump. Trapped steam bubbles cause the knocking sounds as water passes through.
If water leaks from the tank’s air valve, or if your pressure relief valve constantly drips water during heating cycles, the expansion tank’s internal rubber bladder has likely failed and become waterlogged.
Boiler pressure drops are usually caused by a water leak in the hydronic pipe loop, a failing auto-feed valve, an issue with the expansion tank, or a weeping safety relief valve.
If your boiler is under 15 years old and the repair involves isolated components like a pump or control valve, repair is typically the best option. If the heat exchanger is leaking or the system requires frequent costly repairs, replacement is more economical long term.
"Quality doesn't cost, it pays. We treat every customer like family with reliable craftsmanship and with clear honest cost guidance."
— Jon & Dawne Hershberger, Owners
Don’t let cold rooms, leaking valves, or noisy pipes disrupt your home’s winter warmth. Stang Plumbing & Heating provides master-level diagnostic testing and reliable repairs to get your boiler running smoothly. Call (301) 926-1462 or submit an online request today for fast, honest boiler repair in Gaithersburg, MD.
