Plumbing, Drains, Sewers & HVAC in Central Maryland.
Family-Owned Since 1977 • Upfront Pricing
Emergency Service, Day or Night
Third-generation master plumbers and licensed HVAC pros. Upfront pricing quoted before any work begins.
Years Experience
Since 1977
Google Reviews
3,500+ reviews
Same-Day Service
7 Days A Week
One call.
Every home service.
AC blowing warm, drain backing up, water heater leaking, no heat upstairs? You shouldn't need three companies and three phone calls to keep your house running.
Heil covers plumbing, drains & sewers, water heaters, heating and air with one licensed local team — same day, upfront pricing, and available 24/7 for emergencies.
Plumbing & Water Heaters
Leaks, fixtures, repiping, tank and tankless water heaters, installed and serviced by master plumbers.
Drains & Sewers
Clogged drains, camera inspections, hydro jetting, sump pumps, and sewer line repair or replacement.
Heating & Air
AC and furnace repair, tune-ups, heat pump service, and full system replacement with financing available.
Why Maryland Homeowners Choose Heil
Water, heat, comfort.
Handled by one team.
Licensed master plumbers and HVAC technicians on the same crew. Whatever's wrong at your house, you get a real expert dispatched today instead of being passed between companies.
We Show Up Ready
Fully stocked trucks and seasoned technicians, so most repairs are finished on the first visit.
We Treat Your Home Right
Background-checked, drug-tested technicians who cover their shoes and clean up before they go.
We Stand Behind The Work
Upfront pricing and work that's guaranteed. If it's not right, we make it right.
How It Works
Simple, fast, done right.
Here's how we do it.
You Reach Out
Call or book online, 24/7. A real Heil dispatcher answers and locks in your window.
We Diagnose
On-site inspection, honest findings, and a flat-rate quote before any work starts.
We Fix It Right
Stocked trucks mean most repairs are done same day, including nights and weekends for emergencies.
Your Home Runs Right
Water, heat and comfort working the way they should, backed by our guarantee long after we leave.
Everything We Do
One team for your whole home.
Plumbing, drains, sewers, heating and air — handled by licensed Heil pros serving Central Maryland since 1977.
Plumbing
Leaks, fixtures, repiping, water heaters and tankless systems, installed and serviced by master plumbers.
Drains & Sewers
Clogged drains, camera inspections, hydro jetting, and full sewer line repair or replacement.
Heating & Air
Repair, tune-ups and replacement for air conditioners, furnaces, heat pumps and ductless mini-splits.
Maryland's Plumbing Family.Third-Generation Master Plumbers.
One call, one crew, one trusted local team for your whole home — plumbing, drains, sewers, heating and air.
Serving Howard, Anne Arundel, Montgomery and Baltimore Counties. Licensed and insured in Maryland.
About Us
About Heil Plumbing & HVAC.
Since 1977, Central Maryland homeowners have trusted Heil to take care of their homes.
Heil provides plumbing, drains, sewers, water heaters, heating and air service with one experienced local team. Whether it's a small repair or a full system replacement, you get clear answers, upfront pricing and professional service from people you can feel good about bringing into your home.
- Serving Maryland families since 1977
- Third-generation master plumbers and licensed HVAC technicians
- Plumbing, drains, sewers, water heaters, heating and air under one roof
- Upfront pricing before work begins
- Thousands of five-star reviews across Central Maryland
Years Serving Maryland
Generation Master Plumbers
BBB Rating
Star Average Rating
The Heil Promise
Do it right the first time — or make it right, no argument.
That promise has held since 1977, and it is still made by the same locally owned, locally staffed company. Your plumbing, drain, sewer, heating or air work is done by a licensed Heil pro who shows you the price before a single tool comes out — and charges the same on a Saturday as on a Tuesday.
If you are not happy with the work, we come back until you are.
What The Heil Promise Means for You
Quality Workmanship
Master plumbers and licensed HVAC techs who do the job right the first time.
Respect For Your Home
Shoe covers, drop cloths, and a full clean-up before we leave.
Upfront Flat Pricing
You approve the price before we start. No surprises on the invoice.
We Stand By Our Work
If something isn't right, we come back and make it right.
Current Offers
Save on your next service.
We're Local
Same-Day Service, 7 Days A Week
Serving Central Maryland since 1977
Technicians available now. Live customer service standing by.
Real customers, real words
Hear it straight from our
Maryland customers.
Charles O.
Recent
"Heil has handled our plumbing for years. On time, tidy, and they explain what they found before they touch anything. Third generation and it shows."
PlumbingDave P.
Recent
"Main line backed up into the basement. The crew jetted the line, camera'd it, and showed me exactly what was going on. Honest people."
Drains & SewersBill T.
Recent
"We've used Heil at two houses in Howard County. Same great service every time. They treat your home like their own."
HeatingTony G.
Recent
"Replaced our whole furnace and coil. Clean install, everything labeled, and they hauled the old system away. Highly recommend."
HeatingCharles O.
Recent
"Heil has handled our plumbing for years. On time, tidy, and they explain what they found before they touch anything. Third generation and it shows."
PlumbingDave P.
Recent
"Main line backed up into the basement. The crew jetted the line, camera'd it, and showed me exactly what was going on. Honest people."
Drains & SewersBill T.
Recent
"We've used Heil at two houses in Howard County. Same great service every time. They treat your home like their own."
HeatingTony G.
Recent
"Replaced our whole furnace and coil. Clean install, everything labeled, and they hauled the old system away. Highly recommend."
HeatingCharles O.
Recent
"Heil has handled our plumbing for years. On time, tidy, and they explain what they found before they touch anything. Third generation and it shows."
PlumbingDave P.
Recent
"Main line backed up into the basement. The crew jetted the line, camera'd it, and showed me exactly what was going on. Honest people."
Drains & SewersBill T.
Recent
"We've used Heil at two houses in Howard County. Same great service every time. They treat your home like their own."
HeatingTony G.
Recent
"Replaced our whole furnace and coil. Clean install, everything labeled, and they hauled the old system away. Highly recommend."
HeatingCharles O.
Recent
"Heil has handled our plumbing for years. On time, tidy, and they explain what they found before they touch anything. Third generation and it shows."
PlumbingDave P.
Recent
"Main line backed up into the basement. The crew jetted the line, camera'd it, and showed me exactly what was going on. Honest people."
Drains & SewersBill T.
Recent
"We've used Heil at two houses in Howard County. Same great service every time. They treat your home like their own."
HeatingTony G.
Recent
"Replaced our whole furnace and coil. Clean install, everything labeled, and they hauled the old system away. Highly recommend."
HeatingMegan R.
Recent
"Our water heater died on a Saturday. Heil had a tech out the same day and a new unit installed before dinner. Fair price, no drama."
Water HeatersAleah S.
Recent
"Air conditioning quit in July. Tech found a bad capacitor, had the part on the truck, and we were cool again in under an hour."
Air ConditioningKaren M.
Recent
"Family-owned and it feels like it. Office staff are lovely, techs are respectful, and the work is done right the first time."
Lisa H.
Recent
"Had a slow leak nobody else could find. Heil tracked it down in twenty minutes and fixed it same visit."
PlumbingMegan R.
Recent
"Our water heater died on a Saturday. Heil had a tech out the same day and a new unit installed before dinner. Fair price, no drama."
Water HeatersAleah S.
Recent
"Air conditioning quit in July. Tech found a bad capacitor, had the part on the truck, and we were cool again in under an hour."
Air ConditioningKaren M.
Recent
"Family-owned and it feels like it. Office staff are lovely, techs are respectful, and the work is done right the first time."
Lisa H.
Recent
"Had a slow leak nobody else could find. Heil tracked it down in twenty minutes and fixed it same visit."
PlumbingMegan R.
Recent
"Our water heater died on a Saturday. Heil had a tech out the same day and a new unit installed before dinner. Fair price, no drama."
Water HeatersAleah S.
Recent
"Air conditioning quit in July. Tech found a bad capacitor, had the part on the truck, and we were cool again in under an hour."
Air ConditioningKaren M.
Recent
"Family-owned and it feels like it. Office staff are lovely, techs are respectful, and the work is done right the first time."
Lisa H.
Recent
"Had a slow leak nobody else could find. Heil tracked it down in twenty minutes and fixed it same visit."
PlumbingMegan R.
Recent
"Our water heater died on a Saturday. Heil had a tech out the same day and a new unit installed before dinner. Fair price, no drama."
Water HeatersAleah S.
Recent
"Air conditioning quit in July. Tech found a bad capacitor, had the part on the truck, and we were cool again in under an hour."
Air ConditioningKaren M.
Recent
"Family-owned and it feels like it. Office staff are lovely, techs are respectful, and the work is done right the first time."
Lisa H.
Recent
"Had a slow leak nobody else could find. Heil tracked it down in twenty minutes and fixed it same visit."
PlumbingExpert Plumbing, Drains & HVAC for Every Home.
Worry-free solutions for every repair, install, and upgrade your home needs. Licensed, insured, and available 24/7 to schedule service.
Call 410-941-3501Our work
Our Work is Guaranteed
Our technicians are experienced, professional, and undergo continuous training.
