Warm Old Boston Homes — Boiler & Radiant in Boston, MA
Steam, hydronic, radiant, cast-iron radiators — the heating that keeps a century-old Boston home warm takes real expertise. Radiant & Iron has kept it running for 34 years.
Boston's Boiler & Hydronic Craftsmen
Radiant & Iron has warmed Boston's homes since 1992 — brownstones, triple-deckers, and century-old row houses that modern HVAC shops don't understand. Boilers, steam, hydronics, and radiant heat are our craft, not a sideline.
We know how to balance a temperamental steam system, silence knocking pipes, design a radiant floor that heats evenly, and replace a failing boiler with something that'll serve the next thirty years. When your home's heat is a piece of history, you want the people who've spent decades mastering it.
- ✓34 years of boiler and hydronic expertise
- ✓Steam, radiant, baseboard & cast-iron radiators
- ✓Masters of old Boston heating systems
- ✓24/7 no-heat emergency response
Every Way to Heat a Boston Home
Boilers, radiators, radiant floors, and steam — repaired, replaced, and mastered.
🔥 No heat? Our 24/7 line answers and prioritizes emergency calls.
Why Old Homes Trust Us
The expertise a century-old heating system actually requires.
We Know the Old Systems
Steam, gravity hydronics, cast-iron — the systems modern shops shrug at, we've mastered.
We Balance, Not Just Fix
Even heat, silent pipes — we tune the whole system, not just the broken part.
We Respect the House
Careful work in historic homes, clean installs, and craftsmanship that fits.
We Answer at 2am
A dead boiler in a Boston January is an emergency. Our 24/7 line answers.
From No-Heat to Warm Again
Fast when it's urgent, careful always.
Call Us
Tell us what's happening — emergencies get prioritized on our 24/7 line.
Expert Diagnosis
A hydronic specialist finds the real cause, not just the obvious symptom.
Repair or Restore
We fix, balance, or replace — and get your home warm and even again.
Set for the Long Haul
A system tuned and serviced to keep your old home warm for years to come.
Heating Boston, One Home at a Time
Radiant Floors: The Warmth You Feel, Not Hear
There's no heat more comfortable than radiant — silent, even, rising gently from the floor with no drafts or blowing air. It's ideal for renovations, additions, and bathrooms, and it pairs beautifully with a modern high-efficiency boiler.
We design the loops for even coverage, install them cleanly, and tie them into your heating system so the whole house works together. It's the quiet luxury that old-world hydronic heat does best.
- ✓Silent, even, draft-free warmth
- ✓Perfect for renovations & additions
- ✓Designed for even floor coverage
- ✓Tied cleanly into your boiler
No heat, knocking pipes, or an aging boiler? Call the specialists.
34 years of boiler and hydronic expertise, and a 24/7 line that answers when your old home needs it.
Boston Homeowners on Radiant & Iron
Our 1890s Back Bay brownstone runs on steam heat that every modern HVAC company was baffled by. Radiant & Iron knew it cold — balanced the whole system, fixed knocking pipes that plagued us for years, and the house is finally evenly warm. Thirty years of boiler expertise is exactly what an old Boston home needs.
We added radiant floor heating during a kitchen renovation and it's transformed the space — silent, even warmth underfoot. Radiant & Iron designed the loops perfectly and tied it into our boiler seamlessly. Craftsmen who clearly love hydronic heat.
Boiler died on the coldest night of January. Their 24/7 line answered, a tech was out within the hour, and they had heat back before dawn — then replaced the boiler properly the next week. Reliable, honest, and they know these old systems better than anyone.
Boiler & Radiant Heating FAQs
My boiler died — can you come tonight?
Yes. Our 24/7 no-heat line answers around the clock, and we prioritize emergencies — especially in a Boston cold snap. A heating specialist can usually be at your door within the hour.
Do you understand old steam and gravity systems?
Deeply — it's our specialty. Steam heat, gravity hydronics, and cast-iron radiators are exactly the systems in Boston's older homes, and exactly what modern HVAC shops struggle with. We've spent 34 years mastering them.
Why does my steam heat knock and bang?
Usually trapped condensate, pitch issues, or failing air vents — all fixable. Knocking isn't something you have to live with. We balance the system, correct the pitch, and replace worn parts so it runs quietly and evenly.
Is radiant floor heating worth it?
For comfort, absolutely — it's silent, even, and draft-free, and it pairs perfectly with a high-efficiency boiler. It's ideal for renovations, additions, and bathrooms. We'll design and install loops that heat evenly and tie cleanly into your system.
Should I repair or replace my old boiler?
We'll tell you honestly. A well-built cast-iron boiler can run for decades with service; a failing or badly-oversized one is often worth replacing with an efficient modern unit. We show you the real numbers and never push a replacement you don't need.
Do you do annual maintenance?
Yes, and for a boiler it's essential — a pre-winter service catches failing parts before a January no-heat night and keeps efficiency high. It's the cheapest insurance against the worst-timed breakdown.
Boiler Trouble? Let's Get You Warm.
Tell us what's happening with your heat — no heat, knocking pipes, an aging boiler, or a radiant project — and we'll call you right back.
- Visit usBoston, MA 02116
- Call us(617) 555-0164
- Email usservice@radiantandiron.com