Trusted Plumbing, HVAC & Electrical Services on Cape Cod Since 1932
Third-generation, family-owned. Emergency repairs, routine maintenance and custom installations — with big-company capabilities and small-town care.
Free estimates · 1-year warranty · 24/7 emergency availability
Like cedar shingles, some things only get better with age.
Since 1932, Carl F. Riedell & Son has been the name homes and small businesses in Hyannis, Osterville, Mashpee, Nantucket and the islands have trusted to keep their properties comfortable, their pipes sound and their electrical systems safe.
What started as a small family operation during the Great Depression is now a third-generation institution, and the reputation we’ve earned speaks louder than any advertisement ever could.
Our in-house sheet metal fabrication shop sets us apart: while competitors outsource custom ductwork and precision fittings, we engineer them ourselves, so every installation meets the exact demands of your home.
HVAC, plumbing & electrical on Cape Cod
- Air ConditioningCentral AC and ductless mini-splits from leading brands — installation, repair and maintenance, sized to your home.
- HeatingGas furnaces, hot-water boilers, geothermal heat pumps, tankless water heaters and radiant heating. Installation, repair and maintenance.
- Heat Pumps & ThermostatsHeat pump installation and repair; manual, programmable and smart thermostats sold, installed and serviced.
- Indoor Air QualityAir purifiers, UV systems, whole-home filtration and professional duct cleaning.
- Light Commercial HVACInstallation and repair for small businesses across Osterville, Mashpee, Nantucket and the islands.
- PlumbingPlumbing installation for roughs and finishes, re-piping, drain cleaning, leak detection and seasonal water on/off.
- Water FiltrationWater conditioning, water quality testing and whole-house water filtration installs.
- ElectricalPanel services and upgrades, dedicated circuits, ceiling fans, lighting fixtures, security and landscape lighting, surge protection and GFCIs.
- GeneratorsGenerac generator installation and service.
- Sheet MetalCustom sheet metal fabrication and duct sealing, made in our own shop.
We’re not a call center or a franchise.
We’re a third-generation, family-owned business with deep roots in the Osterville and Greater Barnstable community — the company you call first and the one you call back.
Call (508) 428-6365- Honest diagnostics, transparent pricing. We tell you what’s wrong, what it costs and why — no surprise charges or upsells.
- We treat your home like our own. Professional, clean, careful technicians.
- Long-term solutions over quick fixes. Systems built to last, and we stand behind every job.
- Highly trained, constantly learning. Factory-trained techs, from coal furnaces to high-efficiency heat pumps.
- Specialized expertise. From high-end radiant heating to complex water filtration.
- Free estimates, 1-year warranty, 24/7 emergency availability.
Make the upgrade easier.
Financing is available through GoodLeap and Synchrony, and current specials are offered throughout the season. Call us for details and a free in-home estimate.
Ask about financing & specials
What Cape Cod homeowners say
“Been with Riedell for over 40 years. They are truly excellent.”
Glenn Kelley“Riedel is consistently efficient in everything they fix. They show up when they say, get the work done and advise if anything has changed. Highly recommend them!!”
Natalie Pittenger“This was by far the best experience I’ve ever had with a heating person prompt courteous, amazing work, and done quickly.”
Jeff Bristol“Olivia was great, can’t say enough about her. Professional, knowledgeable, meticulous to the extreme, knew exactly what needed to be done, and cleaned everything.”
Gerald Dowling“Extremely helpful. I got an immediate appointment for service.”
Pamela Loughran“Great fast friendly service!”
Linda VollkommerOsterville, Nantucket & the islands
Two offices serve homes and small businesses across Cape Cod and Nantucket.
Ready for comfort? Let’s get you scheduled.
24/7 emergency on-call. Call for current office hours.
Call (508) 428-6365