Standby Generator Installation and Maintenance in Greater Boston
Keep your home powered with expert standby generator installation and maintenance. Castle Electric Inc. designs, installs, and services whole‑home systems with licensed and insured electricians. We serve the Greater Boston Area, including Boston, Newton, and Cambridge. Homeowners trust us for on-time arrivals, clean work, and transparent pricing, backed by a 4.9 rating from 669 reviews. Ask about our design‑first approach to match your home and lifestyle. Ready to get started? Call (781) 819-2200 for a free estimate.
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Why Choose Us
What Our Customers Say
"They arrived on time, explained everything, and the install looks great."
"Clean, careful work and fair, upfront pricing. Highly recommend."
"The team designed the right system for our home and followed through."
Answers to Common Questions
View All FAQsHow much does whole house generator installation typically cost?
Whole-house generator installation costs vary by home, and we confirm pricing after an on-site load assessment and design. Factors that drive price include:
- Generator size (kW) and coverage (whole-home vs. critical circuits).
- Fuel type (natural gas or propane) and gas line work.
- Transfer switch type and installation location. We install systems in Quincy and Newton. We are a certified Generac dealer. Financing is available. We also offer a free estimate for Generac whole-house installations. <br/>
Updated: 2026-01-02 <br/> Need help in Quincy, MA? Call (781) 762-9891 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNaMElDNk1BEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgICZ0IC6MA%7CCgsIqM7MpwYQ6ICDYQ%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCbXRMS2VnEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDBmtLKeg%7CCgwIzMuYngYQ-KTUmwI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGVU4zQXdXRzF2YjNNMFJEWXpSa1V4T1VRMk0yYxAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOjFUN3AwWG1vb3M0RDYzRkUxOUQ2M2c%7C0cgobSPLTF0%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURULTlfcHdRRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDT-9_pwQE%7CCgwIiJLYsgYQuLWtvgE%7C?hl=en-US[4] http://www.castleelectric.biz/ev-charger-installation/[5] https://www.castleelectric.biz/wellesley-ma/[6] https://www.castleelectric.biz/residential-electrical-services/circuit-breakers/[7] https://www.castleelectric.biz/generators/backup-battery-storage/[8] https://www.castleelectric.biz/weston-ma/[9] https://www.castleelectric.biz/westwood-ma/[10] https://www.castleelectric.biz/medfield-ma/[11] https://www.castleelectric.biz/needham-ma/How much does standby generator repair typically cost?
Standby generator repair with Castle Electric Inc. is priced after a certified diagnostic because total cost varies by fault, needed parts, and labor time. Most repairs stem from failed components or fuel delivery issues rather than simple settings. We are Generac-certified and service Generac units only, using genuine parts and factory-approved procedures. Our technicians routinely support homeowners in the Ashland area when storms expose weak batteries, sensors, or fuel pressure. Emergency help is available 24/7, and financing options are available for larger repairs. A quick voltage and fuel-pressure check often narrows the issue fast.
Common repairs that drive pricing and next steps:
- Transfer switch or start circuit faults (adjustment vs. component replacement)
- Fuel supply or pressure fixes (regulators, leaks, clogged lines)
- Wiring or connection remediation (loose lugs, corrosion)
- Control panel or sensor failures (board replacement and programming)
If you smell gas, hear arcing, or see persistent alarms, shut the unit down and schedule a certified diagnostic before running it again. <br/> Updated: 2026-03-13 <br/> Need help in Ashland, MA? Call (781) 762-9891 or book online. “From start to finish they have been professional, responsive and competitively priced.” — Allan R.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25WMVRqbDRkWGRoTldkM2NYTnFSekpFUW1kdU1rRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOnV1Tjl4dXdhNWd3cXNqRzJEQmduMkE%7C0d0ZQg7Qz2Y%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21jdFRqWnlWRVpMV1RWaFNtOUZTVU5NTVhKeldIYxAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOmctTjZyVEZLWTVhSm9FSUNMMXJzWHc%7C0dN32LN7t7r%7C[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xOUllYUjZNV2ROYWpsaFFVOXBNMXByV0ZZNGRVRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOlNRYXR6MWdNajlhQU9pM1prWFY4dUE%7C0cKkYdk5SHw%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21GbFJrUjVWSFF0TUdOM1VHeEpVMWxFWkVwWFYxRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOmFlRkR5VHQtMGN3UGxJU1lEZEpXV1E%7C0d1LrNoEd8y%7C[4] https://www.castleelectric.biz/ev-charger-installation/[5] https://www.castleelectric.biz/norwood-ma/[6] https://www.castleelectric.biz/weston-ma/[7] https://www.castleelectric.biz/medfield-ma/[8] https://www.castleelectric.biz/norwood-ma/generators/How much does standby generator repair service typically cost?
Standby generator repair costs vary by problem and parts, so we confirm pricing after an on-site diagnostic. We service and repair Generac generators only, using genuine Generac parts and factory-approved procedures. Simple fixes like battery or sensor replacements cost less than transfer switch, wiring, or fuel system repairs. After diagnosis, we provide an upfront estimate before any work. Annual or semi-annual maintenance can reduce repair costs. We serve homes in Quincy, Newton, and Norwood. <br/> Updated: 2026-01-02 <br/> Need help in Quincy, MA? Call (781) 762-9891 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNaMElDNk1BEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgICZ0IC6MA%7CCgsIqM7MpwYQ6ICDYQ%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCbXRMS2VnEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDBmtLKeg%7CCgwIzMuYngYQ-KTUmwI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGVU4zQXdXRzF2YjNNMFJEWXpSa1V4T1VRMk0yYxAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOjFUN3AwWG1vb3M0RDYzRkUxOUQ2M2c%7C0cgobSPLTF0%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURULTlfcHdRRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDT-9_pwQE%7CCgwIiJLYsgYQuLWtvgE%7C?hl=en-US[4] http://www.castleelectric.biz/ev-charger-installation/[5] https://www.castleelectric.biz/wellesley-ma/[6] https://www.castleelectric.biz/residential-electrical-services/circuit-breakers/[7] https://www.castleelectric.biz/generators/backup-battery-storage/[8] https://www.castleelectric.biz/weston-ma/[9] https://www.castleelectric.biz/westwood-ma/[10] https://www.castleelectric.biz/medfield-ma/[11] https://www.castleelectric.biz/needham-ma/How much does it cost to install a standby generator at home?
Cost varies by your home’s power needs, fuel (natural gas or propane), and whether you want whole-home or critical-circuit coverage. A technician will confirm final pricing after an on-site load assessment and design. Castle Electric offers free estimates for whole-house Generac installations in Norwood and Newton. We handle consultation, generator selection, professional installation with an automatic transfer switch, and verification via load testing. Financing options are available. We install major brands and are certified to maintain and repair Generac units. <br/> <br/> Updated: 2026-01-02 00:00:00 <br/> <br/> Need help in Quincy, MA? Call (781) 762-9891 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNaMElDNk1BEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgICZ0IC6MA%7CCgsIqM7MpwYQ6ICDYQ%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCbXRMS2VnEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDBmtLKeg%7CCgwIzMuYngYQ-KTUmwI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGVU4zQXdXRzF2YjNNMFJEWXpSa1V4T1VRMk0yYxAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOjFUN3AwWG1vb3M0RDYzRkUxOUQ2M2c%7C0cgobSPLTF0%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURULTlfcHdRRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDT-9_pwQE%7CCgwIiJLYsgYQuLWtvgE%7C?hl=en-US[4] http://www.castleelectric.biz/ev-charger-installation/[5] https://www.castleelectric.biz/wellesley-ma/[6] https://www.castleelectric.biz/residential-electrical-services/circuit-breakers/[7] https://www.castleelectric.biz/generators/backup-battery-storage/[8] https://www.castleelectric.biz/weston-ma/[9] https://www.castleelectric.biz/westwood-ma/[10] https://www.castleelectric.biz/medfield-ma/[11] https://www.castleelectric.biz/needham-ma/How much does home standby generator repair typically cost?
Generator repair cost varies by the fault, parts, and labor time. We confirm pricing after an on-site diagnostic. Castle Electric repairs and maintains Generac units only, using genuine Generac parts and factory-approved procedures. Common items that affect price include transfer switch issues, fuel pressure problems, battery replacement, wiring faults, and control panel sensors. Annual or semi-annual maintenance can reduce repair costs and protect your warranty. We serve Greater Boston, including Quincy and Newton, with licensed, insured electricians and 24/7 emergency service.
- On-site diagnostic to identify the issue.
- Upfront parts and labor quote before work.
Need help in Quincy, MA? Call (781) 762-9891 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNaMElDNk1BEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgICZ0IC6MA%7CCgsIqM7MpwYQ6ICDYQ%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCbXRMS2VnEAE!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDBmtLKeg%7CCgwIzMuYngYQ-KTUmwI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGVU4zQXdXRzF2YjNNMFJEWXpSa1V4T1VRMk0yYxAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CAIQACodChtycF9oOjFUN3AwWG1vb3M0RDYzRkUxOUQ2M2c%7C0cgobSPLTF0%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURULTlfcHdRRRAB!2m1!1s0x0:0xee0b1342788ceb4c!3m1!1s2@1:CIHM0ogKEICAgIDT-9_pwQE%7CCgwIiJLYsgYQuLWtvgE%7C?hl=en-US[4] http://www.castleelectric.biz/ev-charger-installation/[5] https://www.castleelectric.biz/wellesley-ma/[6] https://www.castleelectric.biz/residential-electrical-services/circuit-breakers/[7] https://www.castleelectric.biz/generators/backup-battery-storage/[8] https://www.castleelectric.biz/weston-ma/[9] https://www.castleelectric.biz/westwood-ma/[10] https://www.castleelectric.biz/medfield-ma/[11] https://www.castleelectric.biz/needham-ma/
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Where We Work
What areas do you serve for standby generator installation and maintenance?
We serve homeowners across the Greater Boston Area, including Boston, Newton, and Cambridge. See the complete list of communities below.





