4.6
Based on 8734 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 8734 reviews
This was an emergency situation on a 50 + year old toilet Extremely happy with the work. Gem is my new Plummer
Brody and Nick We’re both excellent! They Fix our air conditioner rapidly, and also told the part that was likely to fail and got everything fixed right away. They also had everything they needed on their truck, which is very helpful because often in these kinds of repair people forget to stock their truck And then you have to Take a second day off of work! They were excellent!
Tim was terrific.. very personable and knowledgeable ..he knows what he is doing..
..
Great service. The technician was very knowledgeable and friendly and got the job done quick and with great quality
David Santiago was excellent. Took his time to explain everything that was done with the service we had today and the other services and products that GEM offers .Thank you again David .
We had our A/C system maintenance with repairs done and our heating system maintained which included some repairs. Our GEM service person Corey was fantastic. He was pleasant, efficient, and very diligent. This was our first GEM experience and gave us the confidence to use their services in the future.
The technicians were extremely polite and professional. They explained everything to me . I am so very pleased and grateful for the time they took to take care of the problem .
As usual, the techs were polite, informative, and efficient. No issues.
I needed a solution to an Outside water faucet that was inaccessible under my new deck. Jason offered different options which I had not considered. His solution and workmanship turned out to be excellent. I am very happy with the results.
The techs were very knowledgable and skilled. They completed the work quickly and efficiently and ran down my options for the future work.
I could not fix a leak on the hot water connection on the bathroom sink. GEM came in and found the connector I was using didn’t have a washer. They had one and replaced it in minutes. Great people!
He solved my problem in 10 minutes.
Wonderful people wonderful service—thank you!!!
Conducted yearly maintenance of central air conditioning system. Tech was knowledgeable and thorough. Explained everything. Tech arrived 2 hours past allotted appointment window.
Phillip was very helpful and got our air conditioning maintenance done in an efficient manner.
Diego Moscosos and Bill were awesome. They were both kind and explained everything, answering all of my questions. They arrived promptly and repaired my unit with skill. I am very pleased with the service. Although it was expensive
Edward & his assistant from GEM did an excellent job fixing a couple of clogged drains. They were knowledgeable, friendly & efficient. Thanks to our membership we were able to save a little.
Anthony and the crew (Walter, Marc& John) did a fantastic job renovating our bathroom and repairing major plumbing issues in the process. Courteous, pleasant and all around good guys, I felt comfortable with them in my home. They worked hard to ensure we had a working bathroom and showed true teamwork. Thanks guys! 100% worth the 5 stars!
5 ⭐️ all the way. Every technician is knowledgeable, courteous and effective. I have 3 systems by Gem Plumbing and will not go anywhere else.
Gem Plumbing came to the rescue!
Manny was Very friendly, polite, knowledgeable, and Could answer any questions I had about repairing my air-conditioning unit. Valuable member of your team!
Was very impressed with Gems
Tech who was able to repair our AC units during our first real heat wave.
Hope to do business with Gem at our new home soon
Great service did an awesome job
Fast, professional and respectful.
Excellent, prompt , knowledgeable professional , and so pleasant!!! We Will definitely be using Gem again!!!!

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.
Water Treatment Icon

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.
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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.
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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.
Well Systems Icon

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

Generator Icon

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.