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Boiler Repair
24/7 Emergency Service

Boiler Not Working or No Heat? Get It Diagnosed.

Boiler repair for no heat, leaks, ignition problems, circulators, zones, controls, pressure issues and other hydronic heating failures.

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Licensed & Insured
24/7 Emergency
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Residential & Commercial

Boiler Repair, Maintenance & No-Heat Diagnosis

A no-heat call does not automatically mean you need a new boiler. Tandem Mechanical diagnoses the boiler and connected heating system first. We repair serviceable failures when practical and discuss replacement only when equipment condition, safety, recurring failures, or economics point in that direction.

What This Job Entails

Boiler Repair — The Full Breakdown

Exactly what we do, what you get, and what to expect — answered the way a careful customer would ask.

What exactly is included in this service?

  • Diagnostic assessment of the boiler and related system components
  • Explanation of findings and recommended repair options before work begins
  • Labor for the approved repair (e.g., circulator replacement, valve repair, ignition service)
  • System restart, pressure verification, and operational test after repair
  • Zone-by-zone heating check to confirm heat delivery
  • Combustion and flue safety check (CO levels, draft, gas/oil pressure)
  • Cleanup of the work area and removal of replaced parts

What is NOT included?

  • Replacement parts beyond the diagnosed issue (billed separately)
  • Permit fees for work requiring a mechanical or plumbing permit
  • After-hours or emergency dispatch fees (if applicable)
  • Repairs to associated piping, radiators, or baseboards not directly related to the boiler
  • Oil tank service, fuel delivery, or chimney cleaning (separate trades)

How long does the job take?

Expected duration: Most standard boiler repairs take 1 to 3 hours. Simple repairs such as a zone valve replacement or ignition component swap are typically on the shorter end. More complex work — such as circulator pump replacement, heat exchanger inspection, or expansion tank replacement combined with system diagnosis — may take 3 hours or more. A full boiler replacement is typically a half-day to full-day project depending on system configuration.

Is the work warrantied or guaranteed?

Tandem Mechanical guarantees its workmanship on boiler repairs for one year from the date of service. If a repair we completed fails due to our workmanship within that period, we will return to correct it at no additional labor charge. Replacement parts and equipment carry the manufacturer's warranty, which varies by brand and component — your technician can provide specific warranty information for any parts installed. Warranty does not cover new or unrelated failures, deferred maintenance issues, or damage caused by external factors such as fuel quality problems or system freeze-ups.

Complete Boiler Repair Solutions

Professional service covering the full scope of boiler repair needs.

No-Heat Diagnosis

Troubleshooting when the boiler is not producing or distributing heat correctly.

Boiler Repair

Repair of serviceable boiler and hydronic components based on diagnosis and parts availability.

Boiler Maintenance

Inspection and maintenance appropriate to the specific equipment and operating conditions.

Replacement Guidance

Evaluation when age, condition, repeated failures, or system needs make replacement worth considering.

Benefits of Boiler Repair

Boiler diagnosis, repair, and maintenance
24/7 emergency phone availability for urgent no-heat calls
Clear repair and replacement guidance
Residential and commercial boiler service
Testing after approved service

Signs You May Need Boiler Repair

If you're experiencing any of these issues, a technician can diagnose the problem and recommend the right solution.

No heat or radiators not warming up
Boiler making banging, gurgling, or whistling noises
Pilot light keeps going out
Pressure gauge reading too high or too low
Water leaking from the boiler
Radiators cold at the top (air in the system)
Higher than normal heating bills
Repair First

Repair When It Makes Sense. Replace Only When It Makes Sense.

Our first job is to diagnose the problem. We do not assume a failed system automatically needs replacement.

If your boiler is under 15 years old and the repair is a single component, repair is usually the right call. If your boiler is approaching or past 15 years, needs frequent repairs, or your heating bills are rising, replacement may save you money long-term. We'll give you an honest assessment and show you the numbers for both options.

See Boiler Replacement Options

If replacement is the practical choice, qualifying installation financing may be available. Subject to approval.

Types of Systems We Service

Gas-Fired Hot Water Boiler (Hydronic)

The most common residential boiler type in Western MA, using natural gas or propane to heat water circulated through baseboard units or radiators.

Oil-Fired Boiler

Widely found in older New England homes, oil boilers require annual burner servicing and are susceptible to fuel-related issues such as nozzle clogging and tank contamination.

Steam Boiler

Found predominantly in older multi-family and historic buildings, steam boilers operate at higher pressures and temperatures and require specific maintenance including water quality management and vent maintenance.

Electric Boiler

Used in homes without gas or oil access, electric boilers are simpler mechanically but require proper electrical supply and element inspection.

Combination Boiler (Combi Boiler)

Provides both space heating and domestic hot water in a single compact unit; requires specialized knowledge for both hydronic and potable water system diagnosis.

High-Efficiency Condensing Boiler

Modern condensing boilers achieve high AFUE ratings by extracting additional heat from flue gases; they require proper condensate drainage and are sensitive to return water temperature.

Equipment Brands We Service

Weil-McLainBurnhamLochinvarTriangle TubeSlant/FinPeerless

Our Boiler Repair Process

1

We inspect your boiler and listen to your observations

2

Technician diagnoses the issue using proper testing equipment

3

We explain the problem and your repair options with upfront pricing

4

Repair is performed using quality parts

5

We test the system to confirm proper operation

6

We explain any maintenance recommendations

Residential & Commercial Boiler Repair

Residential Service

Residential boiler service includes hydronic systems serving radiators, baseboard, radiant zones, and domestic properties with boiler-based heating.

Commercial Service

Commercial boiler service is coordinated around building occupancy, multiple zones, controls, operating schedules, and the need to minimize disruption.

Performance & Quality Factors

Boiler performance depends on correct water pressure, circulation, control operation, combustion or heating input, venting, system cleanliness, and the condition of connected hydronic components.

Maintenance & Troubleshooting

Regular inspection can identify leaks, pressure issues, circulation problems, control faults, and other developing conditions before they turn into a no-heat call. Follow the equipment manufacturer's maintenance guidance.

Service Areas for Boiler Repair

Boiler repair and service are available throughout Tandem Mechanical's active service area. Emergency phone support is available 24/7 for urgent no-heat situations.

Communities We Serve

Select a covered town where this service is currently listed for local details and booking.

AbingtonMAActonMAAcushnetMAAdamsMAAgawamMAAlfordMAAmesburyMAAmherstMAAndoverMAAndoverCTAnsoniaCTAquinnahMAArlingtonVTArlingtonMAAshburnhamMAAshbyMAAshfieldMAAshfordCTAshlandMAAtholMAAttleboroMAAuburnMAAvonCTAvonMAAyerMABarkhamstedCTBarnstableMABarreMABeacon FallsCTBecketMABedfordMABelchertownMABellinghamMABelmontMABenningtonVTBerkleyMABerlinCTBerlinMABernardstonMABethanyCTBethelCTBethlehemCTBeverlyMABillericaMABlackstoneMABlandfordMABloomfieldCTBoltonCTBoltonMABostonMABourneMABoxboroughMABoxfordMABoylstonMABozrahCTBraintreeMABranfordCTBrattleboroVTBrewsterMABridgeportCTBridgewaterCTBridgewaterMABrimfieldMABristolCTBrocktonMABrookfieldCTBrookfieldMABrooklineMABrooklynCTBucklandMABurlingtonCTBurlingtonMACambridgeMACanaanCTCanterburyCTCantonCTCantonMACarlisleMACarverMAChaplinCTCharlemontMACharltonMAChathamMAChelmsfordMAChelseaMACheshireCTCheshireMAChesterCTChesterMAChesterfieldMAChicopeeMAChilmarkMAClarksburgMAClintonCTClintonMACohassetMAColchesterCTColebrookCTColrainMAColumbiaCTConcordMAConwayMACornwallCTCoventryCTCromwellCTCummingtonMADaltonMADanburyCTDanversMADarienCTDartmouthMADedhamMADeep RiverCTDeerfieldMADennisMADerbyCTDightonMADorsetVTDouglasMADoverVTDoverMADracutMADudleyMADunstableMADurhamCTDuxburyMAEast BridgewaterMAEast BrookfieldMAEast GranbyCTEast HaddamCTEast HamptonCTEast HartfordCTEast HavenCTEast LongmeadowMAEast LymeCTEast WindsorCTEastfordCTEasthamMAEasthamptonMAEastonCTEastonMAEdgartownMAEgremontMAEllingtonCTEnfieldCTErvingMAEssexCTEssexMAEverettMAFairfieldCTFairhavenMAFall RiverMAFalmouthMAFarmingtonCTFitchburgMAFloridaMAFoxboroughMAFraminghamMAFranklinCTFranklinMAFreetownMAGardnerMAGeorgetownMAGillMAGlastonburyCTGloucesterMAGoshenCTGoshenMAGosnoldMAGraftonMAGranbyCTGranvilleMAGreat BarringtonMAGreenfieldMAGreenwichCTGriswoldCTGrotonCTGrotonMAGrovelandMAGuilfordCTHaddamCTHadleyMAHalifaxMAHamdenCTHamiltonMAHampdenMAHamptonCTHancockMAHanoverMAHansonMAHardwickMAHartfordCTHartlandCTHarvardMAHarwichMAHarwintonCTHatfieldMAHaverhillMAHawleyMAHeathMAHebronCTHinghamMAHinsdaleMAHolbrookMAHoldenMAHollandMAHollistonMAHolyokeMAHopedaleMAHopkintonMAHubbardstonMAHudsonMAHullMAHuntingtonMAIpswichMAKentCTKillinglyCTKillingworthCTKingstonMALakevilleMALancasterMALanesboroughMALawrenceMALebanonCTLedyardCTLeeMALeicesterMALenoxMALeominsterMALeverettMALexingtonMALeydenMALincolnMALisbonCTLitchfieldCTLittletonMALondonderryVTLongmeadowMALowellMALudlowMALunenburgMALymeCTLynnMALynnfieldMAMadisonCTMaldenMAManchesterCTManchesterVTManchester-by-the-SeaMAMansfieldCTMansfieldMAMarbleheadMAMarionMAMarlboroughCTMarlboroughMAMarshfieldMAMashpeeMAMattapoisettMAMaynardMAMedfieldMAMedfordMAMedwayMAMelroseMAMendonMAMeridenCTMerrimacMAMethuenMAMiddleboroughMAMiddleburyCTMiddlefieldCTMiddlefieldMAMiddletonMAMiddletownCTMilfordCTMilfordMAMillburyMAMillisMAMillvilleMAMiltonMAMonroeCTMonroeMAMonsonMAMontagueMAMontereyMAMontgomeryMAMontvilleCTMorrisCTMount WashingtonMANahantMANantucketMANatickMANaugatuckCTNeedhamMANew AshfordMANew BedfordMANew BraintreeMANew BritainCTNew CanaanCTNew FairfieldCTNew HartfordCTNew HavenCTNew LondonCTNew MarlboroughMANew MilfordCTNew SalemMANewburyMANewburyportMANewingtonCTNewtonMANewtownCTNorfolkCTNorfolkMANorth AdamsMANorth AndoverMANorth AttleboroughMANorth BranfordCTNorth BrookfieldMANorth CanaanCTNorth HavenCTNorth ReadingMANorth StoningtonCTNorthamptonMANorthboroughMANorthbridgeMANorthfieldMANortonMANorwalkCTNorwellMANorwichCTNorwoodMAOak BluffsMAOakhamMAOld LymeCTOld SaybrookCTOrangeCTOrangeMAOrleansMAOtisMAOxfordCTOxfordMAPalmerMAPaxtonMAPeabodyMAPelhamMAPembrokeMAPepperellMAPeruMAPetershamMAPhillipstonMAPittsfieldMAPlainfieldCTPlainfieldMAPlainvilleCTPlainvilleMAPlymouthCTPlymouthMAPlymptonMAPomfretCTPortlandCTPownalVTPrestonCTPrincetonMAProspectCTProvincetownMAPutnamCTPutneyVTQuincyMARandolphMARaynhamMAReadingMAReddingCTRehobothMARevereMARichmondMARidgefieldCTRochesterMARocklandMARockportMARocky HillCTRoweMARowleyMARoxburyCTRoyalstonMARussellMARutlandMASalemCTSalemMASalisburyCTSalisburyMASandisfieldMASandwichMASaugusMASavoyMAScituateMAScotlandCTSeekonkMASeymourCTShaftsburyVTSharonCTSharonMASheffieldMAShelburneMASheltonCTSherbornMAShermanCTShirleyMAShrewsburyMAShutesburyMASimsburyCTSomersCTSomersetMASomervilleMASouth HadleyMASouth WindsorCTSouthamptonMASouthboroughMASouthbridgeMASouthburyCTSouthingtonCTSouthwickMASpencerMASpragueCTSpringfieldMAStaffordCTStamfordCTSterlingCTSterlingMAStockbridgeMAStonehamMAStoningtonCTStoughtonMAStowMAStratfordCTStrattonVTSturbridgeMASudburyMASuffieldCTSunderlandMASuttonMASwampscottMASwanseaMATauntonMATempletonMATewksburyMAThomastonCTThompsonCTTisburyMATollandCTTollandMATopsfieldMATorringtonCTTownsendMATrumbullCTTruroMATyngsboroughMATyringhamMAUnionCTUptonMAUxbridgeMAVernonCTVoluntownCTWakefieldMAWalesMAWallingfordCTWalpoleMAWalthamMAWareMAWarehamMAWarrenCTWarrenMAWarwickMAWashingtonMAWashingtonCTWaterburyCTWaterfordCTWatertownCTWatertownMAWaylandMAWebsterMAWellesleyMAWellfleetMAWendellMAWenhamMAWest BoylstonMAWest BridgewaterMAWest BrookfieldMAWest HartfordCTWest HavenCTWest NewburyMAWest SpringfieldMAWest StockbridgeMAWest TisburyMAWestboroughMAWestbrookCTWestfieldMAWestfordMAWesthamptonMAWestminsterMAWestonCTWestonMAWestportCTWestportMAWestwoodMAWethersfieldCTWeymouthMAWhatelyMAWhitmanMAWilbrahamMAWilliamsburgMAWilliamstownMAWillingtonCTWilmingtonVTWilmingtonMAWiltonCTWinchendonMAWinchesterMAWinchesterCTWindhamCTWindsorMAWindsorCTWindsor LocksCTWinthropMAWoburnMAWolcottCTWoodbridgeCTWoodburyCTWoodstockCTWorcesterMAWorthingtonMAWrenthamMAYarmouthMA
Real Customer Reviews

What Customers Say About Our Boiler Repair

Google

“I am a first time home buyer and not familiar with the boiler/heating system in my home and was apprehensive about finding a service provider to service my boiler. I def. made the right choice choosing Tandem Mechanical to service my boiler system. I needed my boiler serviced and Josh and Sam arrived today and serviced the boiler in a professional manner. Josh explained everything they were going to do before they started work. They were punctual, professional and went above and beyond. They also addressed questions I had on two other issues, one which could have been a problem later on if not addressed. I was very impressed with these guys and also the lady I spoke with re: setting up the appointment. Thank you TM! Much appreciated.”

Dee

Heating

Google

“Had my water tank go on me this past weekend memorial weekend at that! But fortunately i was covered 100% by warranty and tandem mechanical was the company the insurance sent my way Viktoria was great in communication with me explaining everything from start to finish even offered to come in on that very same weekend her crew of guys please don’t be taken back they are young but very smart educated and well prepared for the job very knowledgeable and knew exactly how to get the job done Sam took over and he finished the job due to one of the guys who had to leave early (no waiting he did not leave or stopped working until Sam got there)Sam took his time and made sure everything was put back in order he was kind enough to accompany me to the store to make the exchange return yesterday was very hot he did not once complained very patient and i think that is very important in jobs like these. I will be using them again i couldn’t be happier with their service from start to finish thank you all! Keep up the amazing work!”

Crissy

Water Heaters

Google

“Highly recommend this plumbing company! They were extremely friendly, knowledgeable, and helpful from start to finish. They took the time to explain everything clearly and made sure the job was done right. Everything was handled in a timely manner, and the whole experience was smooth and stress-free. They were professional, responsive, and easy to work with. Definitely a great first choice if you need reliable plumbing work!”

D

Plumbing

Google

“Sam from Tandem Plumbing responded promptly to fix an issue with my toilet, and the entire job was handled with great professionalism. He has a reassuring and approachable manner that made the experience stress-free. I was also pleasantly surprised by how fair and reasonable the pricing was. I only wish I’d called sooner!!!”

Amy Lynn

Westfield · Plumbing

Angi

“Prompt, professional, quality work. Highly recommended”

TJ S.

Angi

“Very fast and affordable services. I can t recommend them highly enough!”

Kathryn C.

Boiler Repair FAQ

Schedule Boiler Repair or Maintenance

Tandem Mechanical is ready to help. Call now or book online.

Financing options are available on boiler replacements. Ask your technician for details.