October Is Breast Cancer Awareness Month

Proceeds of New Installations to Benefit The Gloria Gemma Breast Cancer Research Foundation

4.6
Based on 9524 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

When Your Lexington Home Needs Professional Help

When something goes wrong in your Lexington home, you need it fixed quickly and carefully so your family can get back to normal and your home stays protected.

Whether it is uneven heat in an older colonial, a plumbing issue in a busy family bathroom, or an electrical concern in a home office, problems in a Lexington home feel urgent because they disrupt daily routines and raise questions about how repairs will affect your space. Lexington homes range from historic properties near Battle Green to updated family houses on quiet streets, but all need systems that work reliably through New England seasons.

GEM Plumbing & Heating Services, LLC provides heating, cooling, plumbing, and electrical services in Lexington, MA with technicians who respect your time, your home, and its character. When your home needs help, call GEM.

Years in Business

Skilled employees

Emergency Service

Trucks on the Road


(833) 222-2953

Service That Respects Lexington’s Heritage

Lexington homeowners maintain properties of exceptional quality and historic significance. GEM delivers service worthy of that responsibility.

Colonial homes, Victorian properties, and architecturally significant residences all require technicians who understand careful workmanship. Our professionals arrive prepared, work meticulously, and provide solutions that protect your investment. When your Lexington home needs attention, you deserve service that honors what makes your property special.


Why Lexington Homeowners Choose GEM

Carrier Factory Authorized Dealer and National Grid certifications demonstrate our commitment to the quality Lexington homeowners expect.

Your schedule matters. We respond quickly and work efficiently throughout Lexington.

Over 75 years serving New England’s most discerning families who expect excellence from their service providers.

Colonial homes, antique properties, and architecturally significant residences all receive the careful attention they deserve.

Members receive priority scheduling, maintenance discounts, and regular service that protects system performance.

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

Our 500-vehicle fleet serves Lexington and surrounding communities with reliable response times.

Lexington’s accessible location places it conveniently within our standard service territory.


Getting the Help You Need Is Simple

Professional service should involve clear communication and transparent pricing.

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

Call or book online. We accommodate Lexington 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.

GEM technician smiling inside residential kitchen during service call

(833) 222-2953

What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9525 reviews
Bob Slott
10 hours ago
Douglas was courteous and efficient.
John Walsh
17 hours ago
Very professional , great communicator, also neat and tidy. Aaron is very knowledgeable and professional.
Donald Watts
1 day ago
The techs were early and all I did was show them the generator. They did their job with no problems
Janet Secatore
2 days ago
Sorry for the delay in rating the service I got for my HVAC checkup in September. It went as expected and the two service men were efficient, courteous and communicative. Thanks!
Daniel Linger
3 days ago
In a world where you call HVAC companies and either get no answer, an AI receptionist or a human who takes all your information just to tell you they can’t service you until next week, these guys were a breath of fresh air! Same day service. Fair price. Incredibly kind people from the receptionist to the service worker. Thank you guys!
Jodi Livermore
3 days ago
I was so grateful to get such quick, great service, especially on a holiday weekend. Devin was excellent, explaining everything to me and making recommendations. My go to company for all future plumbing needs!
Brendan Murphy
3 days ago
Incredible job on short notice- will definitely use again. Helpful, responsive, and professional which is exactly what you want with a plumber.
Bruce Keeler
3 days ago
Excellent service from Davontay and Anthony. They were quick and explained what they were doing in an easily understandable manner. Great representatives of the company!
Ed Wirtanen
4 days ago
I called GEM for an issue concerning my the cold water intake for my washing machine. Chris responded within a couple of hours and promptly identified the problem and installed the new part. He is very customer focused and thorough. Chris is a very friendly guy with an objective to make the job is done right.
Susan McCaffrey
5 days ago
Excellent professional service!
Barbara Amiro
5 days ago
I was very pleased with Aaron N. professionalism in servicing our water heater. This service is included in my service plan.
On time. Pleasant. Introduced themselves. Went over the work completed. Left the area clean.
Steven sogoloff
6 days ago
We did a maintenance request for our heating system. Christian and Joie were very pleasant and gave us the results based on their analysis of the system. They arrived within the time frame and completed the process in about 30 minutes.
Joanne Iachetta
6 days ago
Showed up when expected. So kind and courteous and explained everything to me that would need to be done for my plumbing issue. Would highly recommend GEM.
Vin Milano
6 days ago
Erickson was great! Explained conditions of units and recommendations for upkeep!
Doug Williams
6 days ago
The service was good.Aiden was very good. It’s just they said they were on there way 2hrs and30 min they finally arrived. Waited all afternoon
The 2 service men were on time, assessed the problem, diagnosed the issue, came up with a plan and offered several solutions for fixing our mini split. They took pictures, tried clearing out mice debris , attempted to get the outside machine to work ( apex 2 hours) Alas a no go, so we decided to scrap it and go with baseboard heater for the room over the garage. Up front information and pricing , no nonsense. Affable techs and so far great service.
Doug Dustin
1 week ago
I would recommend Nathan and GEM in the event of a plumbing emergency and or issue
David Polishook
1 week ago
No repair was performed at this time I had to pay a diagnostic fee.
Eaven though I was very specific what toilet I wanted they put the wrong one in.
Kristen Mouris
1 week ago
Absolutely incredible and fast service from Nicole T! Our upstairs toilet began leaking Saturday night and by noon on Monday we had a new toilet! Nicole was super informative and walked us through our different options every step of the way. She made an otherwise stressful situation so much easier!
Robert Mason
1 week ago
I had a great experience with Gem Plumbing and Heating. It was great starting from the initial phone conversation and continued with Brian Ciaschini. Brian was an excellent electrician, he was cordial, informative and helpful. Brian made sure everything was working perfectly! I would recommend them and I will use them again.
Friendly, efficient working time, knowledgable!
keith farnham
1 week ago
Excellent as always
Alex Fagundes
1 week ago
Exceptional service! Knowledgeable, and they left with giving me a lot of insight on boilers and options we had. They left and we felt much better.

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.

Lexington homes do not fail at convenient times, and when your property represents generations of careful stewardship, after-hours emergencies require a team you can trust. That is why our technicians are on call day and night, responding throughout the town center, along Massachusetts Avenue, in the neighborhoods near Minute Man National Historical Park, and every corner of this historic community. We understand what a heating failure means in a home with original plaster and irreplaceable woodwork, how critical it is to protect hardwood floors when addressing a plumbing emergency, and why it matters to work thoughtfully in buildings that have witnessed American history. We navigate the winding roads, respect the mature landscaping, and arrive prepared to solve problems without creating new ones. Whether a winter storm stresses aging systems, summer humidity overwhelms your comfort equipment, or a plumbing emergency threatens valuable finishes, you have a team that already knows Lexington’s exceptional housing stock and the proper approach for significant properties. When something goes wrong, you’re never facing it alone.

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 HVAC technician standing in front of service van

Heating and Cooling Services in Lexington, MA

Lexington winters demand reliable heating, and humid Massachusetts summers make air conditioning valuable for comfortable living in historic homes.

GEM provides comprehensive HVAC services throughout Lexington, from emergency repairs to system upgrades.

(833) 222-2953

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Air Conditioning Services in Lexington

Humid summers make air conditioning valuable for comfortable Lexington living, especially in homes with limited natural ventilation.

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

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Furnaces for Lexington Homes

When your furnace fails and the temperature starts dropping in a historic home, you need technicians who respond promptly and work carefully.

GEM’s heating specialists restore warmth to homes throughout town with expertise across furnace types and brands.

  • Furnace Installation: We size and install furnaces matched to your Lexington home’s heating requirements and quality standards.
  • Furnace Replacement: When furnaces reach end of service life, we help select equipment that meets your comfort expectations.
  • 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 cause disruption.
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Ductless Mini-Splits

Lexington’s historic homes benefit from ductless systems that provide modern comfort without compromising original architecture.

GEM’s ductless specialists design and install systems that heat and cool efficiently while preserving your home’s character.

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Heat Pumps

Heat pumps provide efficient year-round comfort, increasingly popular with Lexington homeowners seeking sustainable options.

GEM helps Lexington families maximize heat pump benefits through proper installation and maintenance.

  • Heat Pump Installation: We configure heat pump systems for optimal performance while respecting your property’s aesthetics.
  • 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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Boilers

Boiler heat serves many Lexington homes, providing reliable warmth through original radiators and baseboard systems in established properties.

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

  • Boiler Installation: We install boilers matched to your home’s existing heat distribution configuration.
  • Boiler Repair: Pressure problems, leaks, and circulation issues all fall within our expertise.
  • Boiler Maintenance: Annual service maintains safety, efficiency, and reliability throughout the heating season.
A piggy bank represents Mass Save rebate savings

Oil-to-Gas Conversions

Where natural gas service reaches your Lexington property, converting from oil can simplify maintenance and reduce costs.

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Radiant Heating Systems

Radiant floor heat provides even warmth without drafts, an option for Lexington homes undergoing thoughtful renovation.

GEM installs and maintains radiant systems throughout town.

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Indoor Air Quality Solutions

Lexington’s historic homes and wooded setting create air quality considerations many homeowners address with treatment systems.

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

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Thermostats & Smart Home Devices

Smart thermostats provide control and efficiency benefits that integrate modern convenience with historic homes.

GEM installs connected devices that modernize comfort management.

GEM Plumbing Heating Cooling u0026 Electrical branded technician portrait

Plumbing Services in Lexington, MA

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

From emergency repairs to thoughtful renovations, GEM’s licensed plumbers handle every plumbing challenge Lexington’s quality homes present.

(833) 222-2953

Drain Cleaning Icon

Drain Clog Removal & Sewer Services in Lexington

Slow drains and blockages disrupt household 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 Lexington drain lines, restoring full flow capacity.

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Plumbing Leaks

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

In Lexington’s fine housing stock, aging connections develop leaks that threaten irreplaceable finishes. Our technicians locate leaks precisely and complete permanent repairs.

Water Heaters

Water Heater Repair & Replacement

When your water heater fails and guests are expected, you need fast service from technicians who work carefully.

GEM provides Lexington homeowners with complete water heater services from diagnosis to installation.

  • Traditional Water Heater Installation: We install tank units sized for your household’s hot water requirements.
  • 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 popular in Lexington homes.
  • 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

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

GEM installs and services water treatment equipment throughout town.

  • 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.
Well Systems Icon

Well System & Well Pump Repair

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

Remodel Icon

Kitchen & Bath Remodels

Outdated plumbing affects both function and aesthetics in Lexington’s quality homes.

Dated fixtures, inefficient configurations, and aging supply lines indicate systems ready for thoughtful upgrades. GEM’s plumbers install fixtures that complement your home’s character while meeting modern standards.

  • Kitchen Faucets
  • Bathroom Faucets & Toilets
  • Garbage Disposal
  • Hot Water Dispenser
  • Drinking Water Filter
  • Appliance Hook Up
  • Cooking Upgrades
  • Spa Bathroom
Maintenance Icon

Sump Pumps

Properties in low-lying Lexington 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 and finished spaces.
  • Sump Pump Repair: Pumps cycling constantly or failing to activate need professional attention.
  • Sump Pump Maintenance: Regular testing confirms your pump will function during storms.
Licensed GEM electrician working inside electrical panel

Power Your Home With GEM’s Lexington Electricians

Lexington’s electrical systems range from original wiring in historic homes to modern installations in updated properties.

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

(833) 222-2953

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EV Chargers

Home charging makes electric vehicle ownership practical for Lexington residents.

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

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Smart Home Installation

Connected devices and smart home systems add convenience, efficiency, and control to Lexington homes.

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

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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 Lexington home with tested battery backup.

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Standby Generator Repair & Installation in Lexington

Power outages disrupt daily life, and generators keep essential systems operational when storms strike.

GEM installs and maintains backup power for Lexington homes with sizing guidance and ongoing service.

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Indoor & Outdoor Lighting Design

Proper lighting enhances Lexington homes and properties while improving safety and security.

GEM electricians install lighting solutions that complement your home’s historic character.

  • Indoor Lighting: Recessed fixtures, pendant lights, under-cabinet illumination, and accent lighting appropriate to your home’s era.
  • Outdoor Lighting: Landscape, pathway, and security lighting that improves safety while respecting the historic setting.
Electrical Panel Icon

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.

Rewiring service icon representing professional plumbing repairs

Rewiring & Wiring Installation

Many Lexington historic homes 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 while respecting historic construction.

Icon representing electrical services

Surge Protectors

Storms and grid fluctuations expose Lexington homes to damaging power surges.

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

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Commercial Electrical Services

Lexington businesses throughout town 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 Lexington?

When your Lexington home needs professional attention, GEM provides the expertise historic properties require.

We’ve served New England families since 1949, including Massachusetts’ most distinguished communities. Call us or schedule online for same-day response throughout Lexington.

GEM technician in front of service truck


Frequently Asked Questions

Does GEM serve all of Lexington?

Yes. From the town center to every residential neighborhood, we serve every Lexington address.

How quickly can I get service?

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

Do your technicians work carefully in historic homes?

Absolutely. We understand Lexington’s colonial and historic properties represent irreplaceable heritage. Our technicians work thoughtfully around architectural details.

What makes GEM different from other providers?

We combine comprehensive capabilities with genuine respect for significant properties. Lexington homeowners receive service that honors their home’s heritage.

How can I prevent emergency repairs?

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