Expert Boiler and Furnace Services in Lynn, MA and The North Shore Area
Reliable heat is not optional during a Massachusetts winter, and a boiler that is losing efficiency, cycling strangely, or heating unevenly rarely announces the problem clearly until the coldest week of the year forces the issue. Waldman Plumbing and Heating has installed, repaired, and maintained boilers and furnaces throughout Lynn, MA and the North Shore since 1920, now in its fourth generation of family ownership under MA Master Plumber License #12964 and MA Sheet Metal Worker License #830. Our licensed Master and Journeyman Plumbers are BBB accredited, fully insured with General Liability and Workers Compensation coverage, and carry verified reviews on Google, Yelp, and HomeAdvisor. We install systems from Rinnai, Navien, Viessmann, Rheem, and Bradford White, and all work is backed by a 1 to 5 year warranty. Call 781.780.3184 to schedule boiler or furnace service anywhere in the North Shore.
One of the Only Viessmann ViPRO Contractors on the North Shore
Waldman Plumbing and Heating is one of the only Viessmann ViPRO contractors serving Lynn, MA and the North Shore area. This is not a designation every heating company can claim. Achieving and maintaining ViPRO status requires active licensing, ongoing manufacturer product training, and a proven installation track record with Viessmann systems specifically. Viessmann is recognized for engineering excellence, high combustion efficiency, and long equipment life, and ViPRO status allows Waldman to offer exclusive 10-year warranties on select Viessmann boiler models, double the industry-standard 5-year coverage most competitors can offer on comparable equipment. When you choose a Viessmann installation through Waldman, you are working with both a trusted local, family-owned company and a world-class manufacturer’s highest-tier certified contractor network.
Jeff Waldman and his crew are unbelievable
Boiler and Furnace Services We Provide in Lynn and The North Shore
Boiler and Furnace Repair
A failing boiler turns a cold day into a genuine problem fast. Our repair technicians diagnose pressure fluctuations, water leaks, ignition failures, and uneven heat distribution accurately, and our service vehicles are stocked with commonly needed replacement parts so most repairs are completed on the first visit. We service both steam and hot water systems and inspect every major component, including valves, pumps, and thermostats, rather than restoring heat without confirming the system is operating safely and efficiently. See our heating maintenance service for ongoing care between repair visits.
High-Efficiency Boiler Installation and System Upgrades
A new boiler is a long-term investment in comfort and energy costs. Waldman assesses your home’s layout, square footage, and insulation before recommending a system, and installs condensing and combination boilers from Viessmann and other trusted brands. Every installation follows manufacturer specifications and Massachusetts safety codes. Our technicians remove old equipment, handle all pipe and venting work, and perform detailed system testing before completing the job. For related fuel-supply work, see our gas line installation service.
Combination Boiler Installation
A combination boiler, commonly called a combi boiler, provides both whole-home space heating and on-demand domestic hot water from a single compact unit, eliminating the need for a separate storage tank water heater. This is a particularly strong fit for North Shore homes with limited mechanical room space, and it is a natural pairing for homeowners already converting from oil to gas heat, since it consolidates two appliance replacements into one project. See our dedicated combination boiler water heater for full detail on how combi systems work and which North Shore homes benefit most.
Preventive Boiler and Furnace Maintenance
Regular maintenance keeps a boiler running efficiently and helps prevent costly mid-winter breakdowns. During a tune-up, we inspect all mechanical parts, clean components, check combustion performance, and test safety controls. Proper care extends system life and reduces the risk of carbon monoxide concerns during peak heating months. We recommend annual maintenance for all residential and commercial systems, and offer carbon monoxide testing as part of a comprehensive service visit.
Radiant Floor Heating Installation
Radiant floor heating pairs naturally with a high-efficiency boiler to provide steady, even warmth throughout a home. The system circulates warm water through tubing installed under the flooring, eliminating drafts and cold spots that forced-air systems often produce. Because radiant heat does not rely on blowing air through the home, it does not circulate dust or allergens, making it a strong choice for households managing allergies. Radiant systems work well in bathrooms, kitchens, and as whole-home installations, and are compatible with a range of boiler types. Waldman designs and installs radiant systems that deliver quiet, efficient, even heat throughout the home.
Steam Boiler Repair and Service
Many older North Shore homes, particularly those built before mid-century, still operate on original or long-serving steam boiler systems. Steam systems have distinct maintenance needs compared to hot water boilers, including water level management, pressure regulation, and radiator air valve function. Waldman’s licensed technicians service both steam and hot water systems and understand the specific quirks of older steam distribution common throughout Lynn and North Shore housing stock.
Oil-to-Gas Conversion
Many North Shore homeowners are transitioning from oil heat to natural gas for improved efficiency and lower fuel costs. Waldman provides complete oil-to-gas conversion services, including new equipment selection, gas line installation, permit coordination, and proper decommissioning of the old oil system. This is also the ideal time to evaluate whether a combination boiler makes sense for your specific property.
24/7 Emergency No-Heat Service
Waldman Plumbing and Heating provides same-day and 24/7 emergency service, so a homeowner never faces a freezing night without help. Our emergency vehicles are stocked for the most common boiler and furnace failures throughout the North Shore.
Common Boiler Problems We Solve for Lynn and North Shore Homeowners
- Uneven or inconsistent heating from one room to another throughout the home
- Strange noises such as banging, whistling, gurgling, or kettling from the boiler or radiators
- Higher energy bills despite moderate or unchanged usage patterns
- Leaks around the boiler body or nearby supply and return pipes
- Weak heat output or a system that takes noticeably longer to warm the home
- Pilot light or ignition failures on older gas-fired systems
- A boiler that requires frequent manual resets to keep running
- Frozen or leaking boiler pipes, faulty circulation pumps, and trapped air causing inconsistent heat
Repair vs. Replacement: When Does a North Shore Boiler Need an Upgrade?
| Situation | Repair Often Makes Sense | Replacement Worth Considering |
| Ignition or pilot failure | Isolated component failure in unit under 12 years | Repeated failures, unit over 18-20 years old |
| Uneven heating | Trapped air, single zone valve issue | System-wide inefficiency, aging distribution |
| Rising energy bills | Sediment or scale buildup, correctable | Boiler operating well below current efficiency standards |
| Kettling or banging noise | Isolated to sediment, treatable with flush | Persistent kettling in an older cast iron boiler |
| Leaking components | Single valve or fitting replacement | Leak from the boiler body or heat exchanger itself |
| Frequent resets needed | Control or sensor fault, correctable | System over 15-18 years with recurring safety trips |
Why North Shore Homeowners Choose Waldman Plumbing and Heating
For over a century, homeowners and businesses in Lynn and the North Shore have trusted Waldman Plumbing and Heating for dependable heating solutions. Read what customers say on Google, Yelp, and HomeAdvisor, or view our BBB accreditation profile.
| What We Offer | What It Means for You |
| Licensed Master and Journeyman Plumbers | All heating work performed by state-certified professionals verified by the Massachusetts Board of State Examiners of Plumbers and Gas Fitters. |
| One of the Only Viessmann ViPRO Contractors on the North Shore | Exclusive 10-year warranties on select Viessmann boilers, double the standard industry coverage. |
| Fully Insured: General Liability and Workers Compensation | Zero liability comes back to you during any heating service visit. |
| BBB Accredited – A+ Rating | Third-party verified trust record across more than 100 years. View our BBB accreditation profile. |
| Over 100 Years Serving Lynn and the North Shore | Four generations of licensed heating expertise. Read verified customer testimonials. |
| Same-Day and 24/7 Emergency No-Heat Service | You never have to face a freezing night without help. |
| 1-5 Year Warranties on Labor and Parts | All boiler and furnace work is backed by written warranties. |
| Financing Available via GreenSky See Financing Options | Qualified customers can spread boiler replacement costs over time. Apply for plumbing financing. |
Read verified customer reviews and check our credentials: Google Reviews | Yelp Reviews | HomeAdvisor Profile | BBB Accreditation Profile | Facebook Reviews
In addition to Lynn, our services are available in: Lynn, Salem, Marblehead, Beverly, Swampscott, Peabody, Danvers, Saugus, Lynnfield, Reading, Winchester, Wakefield, Andover. View our complete service area for all communities we cover.
Frequently Asked Questions About Boiler and Furnace Services in Lynn, MA and The North Shore Area
What types of heating systems does Waldman install?
Waldman installs gas and oil boilers, gas and oil furnaces, high-efficiency condensing boilers, combination boilers, steam boilers, radiant floor heating systems, and provides oil-to-gas conversion throughout Lynn and the North Shore.
What is the difference between a boiler and a furnace?
A boiler heats water or produces steam to distribute heat through radiators, baseboard units, or radiant floor tubing. A furnace heats air directly and distributes it through ductwork using a blower. Boilers are more common in older North Shore homes with radiator or baseboard heat, while furnaces are typical in homes with central air ductwork already in place.
How do I know if my boiler needs to be replaced?
Signs that replacement is worth considering include a system over 15 to 20 years old, recurring repairs for different issues within the same heating season, rising energy bills despite normal usage, persistent kettling or banging noise that maintenance does not resolve, and any leak originating from the boiler body or heat exchanger itself rather than a single fitting.
What is a high-efficiency condensing boiler?
A condensing boiler extracts additional heat from exhaust gases that a standard boiler would vent outside, achieving significantly higher efficiency, often in the 90 to 95 percent range or higher, compared to 80 percent or less for older standard-efficiency models. Waldman installs condensing boilers from Viessmann and other leading manufacturers.
What is AFUE and why does it matter?
AFUE, or Annual Fuel Utilization Efficiency, measures what percentage of fuel a heating system converts into usable heat over a full year of operation, expressed as a percentage. A higher AFUE rating means less fuel is wasted. High-efficiency condensing systems commonly achieve AFUE ratings of 90 percent or higher, compared to 56 to 70 percent for older, non-condensing boilers common in aging North Shore homes.
Do you repair boilers that Waldman did not originally install?
Yes. Waldman repairs and services boilers and furnaces regardless of who performed the original installation, including older systems installed by companies no longer in business.
How often should a boiler or furnace be serviced?
We recommend a professional inspection and tune-up once per year, ideally scheduled before the heating season begins, to keep the system running safely and efficiently and to catch developing issues before they cause a breakdown during peak winter demand.
What is included in a boiler tune-up?
A Waldman tune-up includes inspecting all mechanical parts, cleaning key components, checking combustion performance, testing safety controls including the pressure relief valve, and verifying that the system operates within normal pressure and temperature ranges.
My radiators are not heating evenly throughout the house, what is wrong?
Uneven radiator heat is commonly caused by trapped air in the system, which prevents hot water from fully circulating, a stuck or failing zone valve limiting flow to part of the house, or sediment buildup restricting flow in specific radiators. Waldman diagnoses the specific cause and bleeds, repairs, or flushes the affected components.
What is kettling and should I be concerned?
Kettling is a rumbling or banging noise, similar to a kettle coming to a boil, caused by mineral scale or sediment buildup on the heat exchanger that creates localized hot spots and trapped steam pockets. It is a sign of reduced efficiency and, if left unaddressed, can accelerate wear on the heat exchanger. A professional flush and descaling typically resolves early-stage kettling.
My boiler pressure gauge is reading low, what should I do?
Low pressure on a hot water boiler is often caused by a small leak somewhere in the system or normal water loss over time through the expansion tank or relief valve. Most systems have a fill valve that allows repressurizing to the manufacturer’s recommended range, typically 12 to 15 PSI when cold. If pressure drops repeatedly after refilling, a licensed plumber should locate the source of the loss.
How long does a boiler replacement take?
A standard residential boiler replacement typically takes one full day, including removing the old unit, installing the new system, completing pipe and venting work, and testing before the technician leaves. More complex installations, including combination boiler conversions or radiant system integration, may take longer.
Can you replace my old steam boiler?
Yes. Waldman services and replaces steam boiler systems throughout the North Shore, including transitions to modern hot water or condensing systems when a homeowner wants to upgrade away from an aging steam configuration.
What is radiant floor heating and do you install it?
Radiant floor heating circulates warm water through tubing installed beneath the floor, providing steady, even warmth without the drafts or dust circulation associated with forced-air systems. Waldman designs and installs radiant systems for bathrooms, kitchens, additions, and whole-home applications throughout the North Shore.
What causes a furnace to blow cold air?
Cold air from a furnace can indicate a pilot or ignition failure, a thermostat calling for fan operation without heat, a dirty air filter restricting airflow and triggering a safety shutdown, or in more serious cases, a cracked heat exchanger. A licensed technician should diagnose the specific cause rather than repeatedly resetting the system.
Do you service oil-burning boilers and furnaces?
Yes. Waldman services oil-fired boilers and furnaces throughout the North Shore, and also provides complete oil-to-gas conversion for homeowners looking to transition to a different fuel source.
Can a boiler heat domestic hot water as well as the home?
Yes. A combination boiler heats both the home and domestic hot water from a single unit with no separate tank, and an indirect-fired hot water system pairs a standard boiler with a separate storage tank heated by the boiler’s own hot water loop. See our combination boiler water heater page for full detail on how combi systems work.
Should I repair or replace my furnace if it is more than 15 years old?
A furnace or boiler over 15 years old that needs a significant repair is generally a strong candidate for replacement rather than repair, particularly if the repair cost approaches a meaningful percentage of a new system’s cost, since the remaining service life and efficiency gap with modern equipment often make replacement the better long-term value.
Do you install smart thermostats and zoning systems?
Yes. Waldman installs smart thermostats and zone control systems that allow different areas of a home to be heated independently, improving comfort and reducing energy waste in North Shore homes with varied heating needs across floors or additions.
My pilot light keeps going out, what is typically wrong?
A pilot light that will not stay lit is most commonly caused by a worn thermocouple, the safety sensor that keeps the gas valve open when it detects the pilot flame. Thermocouple replacement is a straightforward repair in most units.
What is a zone valve and how does it relate to my heating system?
A zone valve controls hot water flow to a specific heating zone, such as one floor or one section of a home, allowing different areas to be heated independently based on their own thermostat. A stuck or failed zone valve is a common cause of one area of a home heating while another stays cold.
Can Waldman add another heating zone to my existing system?
Yes. Waldman can add heating zones to an existing boiler system for additions, finished basements, or areas of a home that need independent temperature control, provided the existing boiler has adequate capacity for the added zone.
Does a new boiler installation require a permit?
Yes. Boiler installation and replacement in Massachusetts requires a permit from the local building department and must comply with Massachusetts plumbing and gas code. Waldman handles the permit application and coordinates final inspection as a standard part of every installation.
What should I do if my heat stops working on a very cold night?
Call Waldman at 781.780.3184 for 24/7 emergency no-heat service. While waiting for a technician, check that the thermostat is set correctly and that any emergency shutoff switch near the boiler has not been accidentally tripped, but do not attempt to open or service the boiler itself.
Can a dirty air filter cause a furnace to stop working?
Yes. A severely clogged air filter restricts airflow, which can cause the furnace to overheat and trigger a safety shutdown. Regular filter replacement, typically every one to three months depending on the filter type and household conditions, prevents this issue.
What is a condensate drain on a high-efficiency boiler?
High-efficiency condensing boilers produce condensate, an acidic byproduct of the combustion process, that must drain safely away from the unit. A clogged or improperly installed condensate drain can cause the boiler to shut down on a safety lockout. Waldman verifies condensate drain function during installation and maintenance visits.
How is boiler or furnace size determined?
Correct sizing is based on a heat loss calculation that accounts for the home’s square footage, insulation levels, window area, and local climate conditions, not simply the size of the unit being replaced. Waldman performs this assessment before recommending a specific system size.
What is short cycling in a boiler or furnace?
Short cycling is when a heating system turns on and off more frequently than normal without completing a full heating cycle. It is commonly caused by an oversized system, a faulty thermostat, restricted airflow or water flow, or a failing safety control. Short cycling reduces efficiency and accelerates wear on system components.
Does Waldman offer financing for new boiler or furnace installation?
Yes. Qualified customers can access GreenSky financing to spread the cost of boiler or furnace replacement over time. Call 781.780.3184 or visit our financing page to apply before your installation appointment.
What warranties come with a new boiler or furnace installed by Waldman?
All Waldman heating installations are backed by written warranties on labor and parts. Select Viessmann boiler models installed by Waldman, as a certified ViPRO contractor, qualify for an exclusive 10-year warranty, double the standard 5-year industry coverage.
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