Hartford Boiler Repair Works has repaired Connecticut boilers since 1926 and is now part of Thermogenics. From our Cody Street branch in West Hartford, we service, repair and retube industrial and commercial boilers across Connecticut and Massachusetts, with emergency service 24/7, 365 days a year.
Monthly, quarterly or annual plans, burner tune-ups, safety control testing and steam trap surveys.
24/7 emergency repair, retubing, refractory, pipe welding and R-stamp repairs to pressure parts.
Trucks carry gaskets, valves, actuators, coils, pumps and fittings; other parts come through Thermogenics.
Containerized Thermogenics rental boilers and partner units, sized to your load.
Hartford Boiler Repair Works is a small, hands-on team that works on heating and process boilers across Connecticut. Our own technicians handle the heavy trades: tube work, pipe welding, refractory, tank lining and burner service. Thermogenics adds a manufacturer’s parts supply, engineering support and rental boilers.
With the National Board ‘R’ stamp for repairs, our own team makes and documents code repairs to tubes, shells and other pressure parts for your inspector.
The West Hartford crew retubes, installs castable refractory, welds pipe and lines tanks.
Thermogenics is a boiler manufacturer and service group with over 10 locations across North America. Its engineers, parts supply and rental boilers support our West Hartford crew.
Most of our work is for buildings and plants that need heat or steam without a break: hospitals, colleges and schools, food and beverage factories and institutional campuses. We also service the heating boilers, pumps and zone valves behind commercial HVAC systems, and in Connecticut and Massachusetts we work in corrugated, paper and packaging plants, where steam feeds the process and a boiler trip stops production.
Steam for sterilizers, humidification and heat
Campus heating plants and building boilers
Process steam for cooking and cleaning
Heating plants for large institutional campuses
Steam for corrugators, paper processing and packaging lines
Heating boilers, pumps and zone valves for building HVAC
A Connecticut heating season keeps boilers, pumps and burners under steady load for months. We schedule maintenance visits monthly, quarterly or annually, depending on how hard your equipment runs. Each visit covers burner tuning and combustion checks, low-water cutoff and flame safeguard testing, safety valve and gauge checks, and an inspection of the water side, tubes and refractory.
Boiler inspections in Connecticut are done by commissioned inspectors from the Connecticut Department of Administrative Services – Office of the State Building Inspector (Boiler Unit), or by your insurance company’s inspector. We make the repairs the inspector writes up.
A lot of the time the issue isn’t the boiler, it’s the system. Failed steam traps waste fuel and can flood or starve the equipment downstream. The U.S. Department of Energy has reported that in systems neglected for 3–5 years, 15% to 30% of steam traps can fail, and that regular surveys and maintenance can bring that below 5%. Our surveys tag and test each trap and list which ones to repair or replace.
Our emergency line is answered nights and weekends. We restore heat or steam first, as quickly as it can be done safely. Then we trace the cause of the trip, such as a sticking low-water cutoff, a failed flame scanner, scale on the tubes or a feed pump losing prime, and fix it.
Heavy repair is the core of our work. We retube firetube boilers, replace and repair individual tubes, rebuild refractory with castable insulation, line tanks and weld steam and process piping. Code repairs to pressure parts are made under our ‘R’ stamp and documented for your inspector. We also repair or replace pumps and zone valves.
Some failures point to equipment near the end of its working life. When that happens, we lay out the options plainly: repair, retrofit or replace. We handle burner and boiler retrofits, combustion system upgrades, process burners, process instrumentation and process piping, and through Thermogenics we can engineer and install a turn-key replacement. If a repair will take weeks, a rental boiler can carry the load in the meantime.
Our service trucks carry the parts that fail most often: gaskets, pumps, actuators, valves, coils and fittings. Other parts we order through Thermogenics, which supplies burner controls, gas trains, process burners, new pumps and rebuilt pumps.
Give us the boiler make, model and serial number, or send a photo of the nameplate, and we will find the part. Some pumps and kits carry long lead times. For equipment that cannot be down, we help you pick critical spares to keep on site and plan rebuilds around your shutdowns.
Controls & burner brands
Grundfos repair kits can take 8–10 weeks and new pumps 10–12 weeks. Ask us which spares to keep on hand.
Give us your pressure, fuel, voltage and local NOx limits when you call so we can match a rental unit to your permit and load.
A rental boiler keeps the building heated and the process running when a boiler fails outright or a repair or replacement will take weeks. We arrange Thermogenics rental boilers for Connecticut and Massachusetts customers: containerized Thermocoil steam units from 150 HP to 500 HP, built to a 250 psig MAWP and run at 70–225 psig, firing natural gas, propane or No. 2 oil. They ship in standard shipping containers without oversize escort loads, and each one needs a crane or a lowboy trailer to set it on site.
Thermogenics rentals come with installation, maintenance and 24/7 repairs while the unit is on rent. The steam connection usually sets the schedule. Decide where the unit will sit and how far that is from your plant steam line; 400 ft of piping can mean 2–3 weeks of work. A new replacement boiler often takes about four months to arrive, so plan the rental location for the long run.
Beyond the Thermogenics units, we can draw on partner rental inventory from 30 BHP to 2,200+ BHP, including firetube and watertube steam, hot water, thermal fluid, low NOx units and complete boiler rooms.
| Unit type | Thermocoil coil-tube steam boilers in sea-can containers |
|---|---|
| Size | 150 to 500 HP per unit; larger on request |
| Pressure | 250 psig design (MAWP), operating 70–225 psig |
| Fuel | Natural gas, propane or No. 2 oil |
| Containers | Two-boiler 40 ft, or single 20 ft and 30 ft units |
| Network range | 30 BHP to 2,200+ BHP through Thermogenics partners |
Thermogenics rental specifications. Units are matched to your load from the Thermogenics fleet and partner inventory; call for current availability.
Visit hartfordboiler.com
From West Hartford we serve the Hartford area, including New Britain, Farmington, Bloomfield, East Hartford, Manchester, Middletown, Bristol and Waterbury, and east to Norwich and New London. Springfield, MA, is about 40 minutes from the branch, New Haven about 50 minutes, Worcester, MA, about 1 hour, and Stamford about 1.5 hours.
Cities & towns we serve
Matt Marshall & Co.
2249 Bishop Road · 336-292-8477
≈ 550 mi away
Thermogenics
4426 Mt Carmel Tobasco Rd., Suite A · 513-528-0500
≈ 630 mi away
Yown's Boiler Service
3501 West 20th St. · 904-786-1645
≈ 930 mi away
Industrial Engineering
2501 N John Young Parkway · 407-293-9317
≈ 1,030 mi away
Case studies and articles from across the Thermogenics group, the engineering and equipment network now behind the Hartford Boiler Repair Works team.
Thermocoil boilers in the same footprint as the old firetubes more than doubled steam generation.
Read more
Worn firetubes replaced with high-pressure Thermocoil boilers, a condensate and deaerator system, and fast-acting controls.
Read more
How sterilization, humidification and lab loads shape boiler selection as hospitals move other loads to low-grade heat.
Read moreOur emergency service answers, on the same number: 860-953-9845. Emergency service runs 24/7; the office is open 7:00 AM to 3:30 PM Eastern, Monday to Friday. Tell us the boiler make, what it is doing and what the building or process needs, and we will dispatch a technician from West Hartford.
Yes. We work on all makes, models and types of commercial and industrial boilers, and we see a lot of Cleaver-Brooks, Patterson-Kelley, AERCO, H.B. Smith, KN Series, Hurst, Bigelow, Viessmann and Lochinvar equipment. We also service Power Flame, Carlin and Beckett burners. Through Thermogenics we have factory support for Thermocoil coil-tube boilers.
Yes. We arrange a Thermogenics or partner rental boiler sized to your load. The Boiler Rentals section above covers sizes, shipping and site setup.
Yes. We hold the National Board ‘R’ stamp for repairs only, which lets us make code repairs to pressure-retaining parts, such as tube replacement and weld repairs, under National Board rules and document them for the inspector. The stamp does not cover alterations. If a job would count as one, we tell you before any work is scheduled.
Yes. Our West Hartford team serves Springfield and other Connecticut and Massachusetts sites up to about two hours away, including New Haven, Stamford, Worcester, Waterbury, Middletown, Enfield, Norwich and New London.
Yes. Hartford Boiler Repair Works joined Thermogenics in 2023 and still runs under its own name from West Hartford. What changed is the support behind us: Thermogenics engineering, parts and rentals.
We work on one boiler at a time. Most hospitals and campuses run more than one, so the others carry the load during the repair. Where we can, we plan larger jobs such as retubing or refractory around your lowest-load period. If redundancy is thin, a rental boiler can cover the gap.
Usually, yes. Corrugators and process lines use a lot of steam, and failed traps waste it. In one U.S. Department of Energy case, repairing a single stuck trap on a 150 psig line saved $6,640 per year at a plant valuing steam at $10 per 1,000 lb. Our surveys test each trap and rank the failures so you can fix the costly ones first.
Call Hartford Boiler Repair Works at 860-953-9845, 24/7, for emergency repair, or to plan maintenance, retubing, refractory work or a rental boiler in Connecticut and Massachusetts.
Request emergency service online