4.6
Based on 8903 reviews
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Carrier Residential Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR
Mass Save | Heat Pump Installer

Professional Home Service for Somerville Residents

Somerville homes depend on systems that must handle age, density, and shared infrastructure, and you want technicians who know how these buildings work.

Somerville packs vibrant neighborhoods into one of America’s most densely populated cities, where triple-deckers line entire streets and Victorian multi-families house generations of residents. From the row houses near Union Square to the triple-deckers of Winter Hill and the brick buildings surrounding Davis Square, property owners maintain structures where older construction, close quarters, and shared systems present challenges unique to urban living.

GEM Plumbing and Heating Services, LLC provides heating, cooling, plumbing, and electrical services in Somerville, MA with expertise adapted to dense urban properties. Call GEM when your home needs help.

Years in Business

Skilled employees

Emergency Service

Trucks on the Road


(833) 222-2953

Service Built for Urban Density

Somerville property owners need technicians who work efficiently in tight spaces, carefully in occupied buildings, and quickly when multiple households depend on shared systems.

Triple-deckers, row houses, and Victorian multi-families all require technicians who understand urban construction. Our professionals arrive prepared, navigate crowded streets, and provide solutions that work within building constraints. When your Somerville property needs attention, you deserve service from technicians who know dense urban housing.


Why Somerville Property Owners Choose GEM

Triple-deckers, multi-family buildings, and dense housing all receive appropriate expertise from technicians who understand shared systems.

We navigate tight streets, limited parking, and compact spaces to deliver fast, efficient service throughout Somerville.

Over 75 years serving New England families and property owners who expect reliable service.

Every GEM technician, plumber, and electrician maintains proper licensing, passes background checks, and holds NATE certification.

Your schedule matters. When heat fails or plumbing backs up, we respond quickly throughout Somerville.

Members receive priority scheduling, maintenance discounts, and regular service that prevents unexpected breakdowns.

Carrier Factory Authorized Dealer and National Grid certifications demonstrate our commitment to quality work.

Somerville’s central location places it conveniently within our standard service territory.


Getting the Help You Need Is Simple

Professional service should involve clear communication and honest pricing.

GEM serves Somerville with straightforward processes. Call, schedule, receive quality work.

Call or book online. We accommodate Somerville schedules with flexible appointment times and same-day availability.

Your technician evaluates the situation, explains findings clearly, and provides pricing before beginning work.

We complete repairs properly, protect your floors and furnishings, and confirm everything functions before leaving.

(833) 222-2953

What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 8895 reviews
GEM plumbing recently installed a ductless minisplit system in my home. The installers did an excellent job. They were extremely knowledgeable, courteous, and patient. They communicated with me every step of the way and took the time to answer all of my questions. The system is working beautifully. If you are looking for a contractor to install a ductless minisplit system, I highly recommend GEM plumbing.
I do wish it hadn’t been so expensive, but I will say I really did feel like my technician understood what he was doing. He was knowledgeable and professional. He explained things well and I’d be happy to work with him again.
William (Bill) and Antony arrived promptly and serviced my boiler system – everything is up and running smoothly (and the hot water is back).!
Dory was friendly, respectful, and went above and beyond!
Omar did an excellent job installing our central air conditioning system. Very efficient and friendly. He got the system up and running quickly and had a great attitude. Kept the house neat while cutting holes in the ceiling for vents. An all around positive experience.
Steve R was amazing and was super helpful and kind 10/10 would welcome back!!
Eliceo from Gem is a professional skilled technician. He explained the installation process and was organized and neat.
Very efficient and focused. They were in and out in no time.
Great job. Very helpful explaining what the problem and what to expect from the repair. Highly recommend Gem.
Walter and Anthony did a great job!
1st time using GEM for plumbing. Process was smooth, the workers were professional and diligent and kept me up to date the entire process. I highly recommend their services
Right on time, very knowledgeable about the issues I had. Great job fixing the leaks I had at home. No doubt I would recommend their service. Thank you Abraham.
Nice people, quick to respond and knowledgeable. Highly recommend them for emergencies. William T. was great, thank so much
First maintenance on our Generac. All went very smoothly!! Arrived within timeframe provided and even informed on actual arrival that day!
Very polite gentleman who went right to work, provided an update once maintenance was completed and explained basic process performed.
David S, our GEM technician was on time, respectful of our home and provided us with a thorough explanation of our GEM service contract and the scope of work completed and recommended. I would highly recommend him again!
Alec and Scott made quick work of what turned out to be a simple solution. Very efficient, pleasant and explained the issue and recommendation clearly.
Both service calls to my house were with Nick, and I can't say enough good things about him. He's professional, courteous, communicative, and thorough. My only hiccup with Gem has been conflicting information from the office, but even with hiccups the staff have been professional and friendly. Thank you, Gem! You're the best, Nick!
great guy! vaery talented and professional
Joseph (Junior) from GEM Plumbing & Heating came out to do a check on our HVAC system for this season. He was very thorough, knowledgeable, and honest. Our system is in great shape after 16 years. Thank you Joe!!! We were on a contract plan, which was very reasonable, so we paid nothing at the time of service.
Our tech was Joseph (junior), Incredible experience came out the same day.Billed me for the service. Exceptional diagnostics, developed a number of options to fix the problem. We called four other places.First three never showed one showed and walked away, without figuring anything out. Our A/C has been out for 6 wks waiting for people to not show up. YOU ABSOLUTELY MUST CALL GEM FIRST
GEM responded very quickly. I was out of state when my tenant called stating the A/c system wasn't working. I called GEM to see if they would be willing to help me. I didn't have an account with them but they were more than willing to assist me with my broken A/C system.
Nick the technician was very knowledgeable and worked with me while I was out of state and with my tenants. He articulated very well, explaining all the issues, what the repair process would involve and the cost. There were no surprises. My tenants informed me that Nick was terrific !
Nick got the system up and running. Overall, it was a very positive experience and I would highly recommend GEM to anyone.
Great service. Timely response and got the job done. It’s on the pricey side but that’s expected given their quick response time. Joe was particularly good and have had him out twice on our property. Thanks!
From beginning to end the experience was amazing. It started with my man Walter who calmly with humor explained the process and my guys Ben and his partner who took cared of me and my family. They were professional and very knowledgeable about the process. Their patience when not finding my well was welcome. Awesome job
Thank you
The people are nice, punctual, pleasant.
And best of all great prices. I'm very happy with the service.
I was very impressed with Dory . He was extremely knowledgeable and very helpful.

customer and technician interaction

Peace of Mind, Worry-Free

Maintaining your home can be stressful. Let us help.

Preserve your home’s value, extend your equipment’s life span, and ease your worries with our membership plans.

Well-maintained systems run better, last longer, and save you money on energy bills. Regular care prevents breakdowns, extends equipment life, and keeps your home comfortable year-round. When it’s time to sell, buyers notice homes with documented maintenance history.

Somerville properties do not fail on a schedule, and in a city where triple-deckers house multiple families and a single heating system serves an entire building, after-hours problems affect everyone at once. That is why our technicians are on call day and night, responding to emergencies in Davis Square, Union Square, Winter Hill, East Somerville, and every neighborhood in this dense city. We understand what a boiler failure means when six families are calling you, how quickly a plumbing backup becomes everyone’s problem, and why electrical issues in old buildings need someone who’s dealt with them before.

We know Somerville’s housing stock, from the Victorians near Tufts to the triple-deckers along Broadway. Whether a winter storm stresses aging heating systems, summer heat overwhelms an undersized AC unit, or a plumbing emergency threatens multiple units, you have a team that already knows the common issues in Somerville properties. When something goes wrong, you’re not left waiting.

With us, you can spend less money to take better care of your home.

Membership plans pay for themselves. You get discounted rates on service, priority scheduling when problems happen, and regular maintenance that prevents expensive emergency repairs. Efficient systems cost less to run, and catching issues early saves you from major expenses down the road.

Keep all parts of your home operating at peak efficiency with regular maintenance tune-ups.

Your HVAC, plumbing, and electrical systems work together to keep your home running. Regular tune-ups ensure everything operates efficiently, safely, and reliably. We inspect, clean, and adjust systems before problems start, so you avoid breakdowns when you need your systems most.


GEM technician servicing a Carrier outdoor unit

Heating and Cooling Services in Somerville, MA

Somerville winters demand reliable heating, and humid Massachusetts summers make air conditioning increasingly essential in dense urban housing.

GEM provides comprehensive HVAC services throughout Somerville, from emergency repairs to system replacements.

(833) 222-2953

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Air Conditioning Services in Somerville

Dense housing makes air conditioning increasingly essential for comfortable Somerville summers.

Our cooling technicians keep your system running through heat waves with responsive service.

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Heat Pumps

Heat pumps provide efficient year-round comfort, increasingly popular in Somerville as property owners seek sustainable options.

GEM helps Somerville property owners maximize heat pump benefits through proper installation and maintenance.

  • Heat Pump Installation: We configure heat pump systems for optimal performance within building constraints.
  • Heat Pump Replacement: Current heat pump technology offers significant improvements over older units.
  • Heat Pump Repair: Mode switching problems and output issues indicate conditions our technicians resolve effectively.
  • Heat Pump Maintenance: Regular service maintains efficiency and extends equipment lifespan.
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Furnaces for Somerville Homes

When your furnace fails and the whole building starts getting cold, you need technicians who can diagnose and repair the problem fast.

GEM’s heating specialists work on furnaces throughout the city with expertise across configurations and building types.

  • Furnace Installation: We size and install furnaces matched to your Somerville property’s heating requirements.
  • Furnace Replacement: When furnaces reach end of service life, we help select equipment that fits your building’s constraints.
  • Furnace Repair: Ignition problems, blower malfunctions, and heat distribution issues all respond to our diagnostic expertise.
  • Furnace Maintenance: Annual service maintains efficiency and catches developing problems before they leave tenants without heat.
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Ductless Mini-Splits

Somerville’s older buildings benefit from ductless systems that add cooling and supplemental heat without major construction.

GEM’s ductless specialists design and install systems that condition specific units or areas efficiently.

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Boilers

Boiler heat serves most Somerville multi-family buildings, providing reliable warmth through steam and hot water systems that have operated for generations.

GEM’s heating team provides comprehensive boiler services for safe, efficient operation.

  • Boiler Installation: We install boilers matched to your building’s heat distribution configuration.
  • Boiler Repair: Pressure problems, leaks, steam traps, and circulation issues all fall within our expertise.
  • Boiler Maintenance: Annual service maintains safety, efficiency, and reliability throughout the heating season.
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Radiant Heating Systems

Radiant floor heat provides even warmth without drafts, an option for Somerville properties undergoing renovation.

GEM installs and maintains radiant systems throughout the city.

A piggy bank represents Mass Save rebate savings

Oil-to-Gas Conversions

Where natural gas service reaches your Somerville property, converting from oil can simplify maintenance and improve efficiency.

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Indoor Air Quality Solutions

Somerville’s urban setting and dense housing create air quality considerations many property owners address with treatment systems.

GEM offers filtration, purification, and humidity control that improves indoor air quality throughout your Somerville property.

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Thermostats & Smart Home Devices

Smart thermostats provide control and efficiency benefits for Somerville property owners regardless of building age.

GEM installs connected devices that modernize comfort management.

Plumber repairing kitchen faucet

Plumbing Services in Somerville, MA

Your plumbing should work without you thinking about it. GEM provides trusted plumbing services to our Somerville neighbors.

From emergency repairs to planned improvements, GEM’s licensed plumbers handle every plumbing challenge Somerville’s dense housing presents.

(833) 222-2953

Leaks Icon

Plumbing Leaks

Water stains, musty odors, and unexpected moisture signal hidden leaks causing ongoing damage.

In Somerville’s dense housing stock, aging connections develop leaks that threaten multiple units. Our technicians locate leaks precisely and complete permanent repairs.

Water Heaters

Water Heater Repair & Replacement

When your water heater fails and multiple households lose hot water, you need fast service from technicians who understand shared systems.

GEM provides Somerville property owners with complete water heater services from diagnosis to installation.

  • Traditional Water Heater Installation: We install tank units sized for your property’s hot water demands.
  • Traditional Water Heater Replacement: When repair isn’t practical, we remove old equipment and install appropriate replacements.
  • Traditional Water Heater Repair: Temperature inconsistencies, leaks, and unusual noises all indicate conditions we can address.
  • Traditional Water Heater Maintenance: Regular service extends tank life and maintains efficiency.
  • Tankless Water Heater Installation: Endless hot water and compact footprint make tankless units practical for Somerville’s space-constrained properties.
  • Tankless Water Heater Replacement: When tankless units age out, we install current models with improved features.
  • Tankless Water Heater Repair: Error codes and temperature problems indicate issues we can resolve.
  • Tankless Water Heater Maintenance: Annual service maintains tankless performance.
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Water Filtration & Water Quality Improvements

Somerville water quality benefits from treatment systems that address hardness and impurities.

GEM installs and services water treatment equipment throughout the city.

  • Water Purifier System Installation: Whole-home filtration improves water quality at every tap and appliance.
  • Water Softener Installation: Soft water prevents scale buildup and extends plumbing system life.
  • Water Softener Maintenance: Regular service keeps softening systems functioning properly.
  • Water Softener Repair: When softeners malfunction, we diagnose and correct problems promptly.
  • Water Softener Replacement: Aging softeners lose effectiveness and benefit from replacement.
Drain Cleaning Icon

Drain Clog Removal & Sewer Services in Somerville

Slow drains and blockages disrupt daily routines and require professional clearing.

GEM’s drain specialists restore proper flow throughout your plumbing system.

  • Kitchen Drains: Grease accumulation and food debris create kitchen drain clogs we clear effectively.
  • Bathroom Drains: Hair, soap residue, and mineral buildup respond to professional drain clearing techniques.
  • Basement and Utility Drains: Floor drains collect debris and sediment that cause backup during storms if not cleaned regularly.
Hydro Jet Icon

Hydro Jetting

When standard drain clearing can’t remove stubborn blockages, hydro jetting scours pipe interiors with high-pressure water.

This service removes grease accumulation and root intrusion from Somerville drain lines, restoring full flow capacity.

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Sump Pumps

Properties in low-lying Somerville areas benefit from working sump pump protection.

GEM keeps these important systems ready when groundwater rises.

  • Sump Pump Installation: We install pumps with capacity matched to your property’s water intrusion patterns.
  • Sump Pump Replacement: When pumps fail, prompt replacement protects basements from flooding.
  • Sump Pump Repair: Pumps cycling constantly or failing to activate need professional attention.
  • Sump Pump Maintenance: Regular testing confirms your pump will function during heavy storms.
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Well System & Well Pump Repair

Some Somerville properties rely on private wells for water supply. GEM provides well pump installation, repair, and replacement to maintain reliable water flow for these properties.

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Kitchen & Bath Remodels

Outdated plumbing affects both function and aesthetics in Somerville properties.

Dated fixtures, inefficient configurations, and aging supply lines indicate systems ready for professional upgrades. GEM’s plumbers install fixtures that improve daily convenience.

  • Kitchen Faucets
  • Bathroom Faucets & Toilets
  • Garbage Disposal
  • Hot Water Dispenser
  • Drinking Water Filter
  • Appliance Hook Up
  • Cooking Upgrades
  • Spa Bathroom
Electrician installing a pendant light in a kitchen.

Power Your Home With GEM’s Somerville Electricians

Somerville’s electrical systems range from original knob-and-tube in old buildings to modern installations in updated properties.

GEM’s licensed electricians serve Somerville with expertise across all residential electrical work.

(833) 222-2953

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Standby Generator Repair & Installation in Somerville

Power outages disrupt daily life, and generators keep essential systems operational when storms knock out power.

GEM installs and maintains backup power for Somerville properties with sizing guidance and ongoing service.

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Indoor & Outdoor Lighting Design

Proper lighting enhances Somerville properties while improving safety and security.

GEM electricians install lighting solutions appropriate to your property.

  • Indoor Lighting: Recessed fixtures, pendant lights, under-cabinet illumination, and accent lighting tailored to your space.
  • Outdoor Lighting: Landscape, pathway, and security lighting that improves safety while highlighting your property.
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Electrical Panel Upgrades

Your electrical panel must safely handle modern power demands in buildings designed for far less electrical load.

GEM’s electricians evaluate current capacity and install panels that deliver reliable power with room for future needs.

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Smart Home Installation

Connected devices and smart home systems add convenience, efficiency, and control to Somerville properties.

GEM’s electricians install and integrate smart thermostats, lighting controls, security components, and energy monitoring systems.

Icon representing electrical services

Surge Protectors

Storms and grid fluctuations expose Somerville properties to damaging power surges.

Whole-home surge protection installed at your panel guards every circuit against voltage spikes that destroy electronics and appliances.

Rewiring service icon representing professional plumbing repairs

Rewiring & Wiring Installation

Many Somerville properties contain original wiring that cannot safely meet modern electrical loads.

Flickering lights, frequently tripped breakers, and warm outlets indicate systems needing professional attention. GEM replaces outdated wiring to current codes.

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EV Chargers

Home charging makes electric vehicle ownership practical for Somerville residents.

GEM’s certified electricians install Level 2 chargers that provide faster charging speeds with professional wiring.

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Carbon Monoxide & Smoke Detector Installation

Properly placed and maintained detectors provide critical early warning against invisible dangers.

Our electricians install smoke and CO detectors in optimal locations throughout your Somerville property with tested battery backup.

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Commercial Electrical Services

Somerville businesses throughout the city depend on consistent electrical service.

Our commercial electricians handle lighting upgrades, panel work, safety inspections, and emergency repairs for local businesses.

Ready for Reliable HVAC, Plumbing, and Electrical Services in Somerville?

When your Somerville property needs professional attention, GEM provides the expertise dense urban housing requires.

We’ve served New England families since 1949, including Greater Boston’s most vibrant communities. Call us or schedule online for same-day response throughout Somerville.

GEM technician in front of service truck


Frequently Asked Questions

Does GEM serve all of Somerville?

Yes. From Davis Square to Union Square, from Winter Hill to East Somerville, we serve every Somerville address.

How quickly can I get service?

Same-day appointments are available for most calls. Somerville’s central location is well within our service network.

Do you work with multi-family buildings?

Yes. Somerville’s triple-deckers and multi-unit properties require technicians who understand shared systems. Our team handles both individual units and building-wide work.

What makes GEM different from other providers?

We combine comprehensive capabilities with experience serving dense urban housing. Somerville property owners receive efficient service from professionals who understand urban buildings.

How can I prevent emergency repairs?

Regular maintenance catches problems before they become emergencies. GEM’s Home Comfort Club includes scheduled service that keeps Somerville properties running reliably.