Standby Generator Installation and Maintenance in Northern Virginia
Keep your home powered with professional standby generator installation and maintenance in Northern Virginia. Parrish Services is a concierge, multi‑trade team and a Generac Elite Pro dealer. We serve Northern Virginia, including Alexandria, Fairfax, and Arlington. Trusted by homeowners with a 4.8 rating from 1,434 reviews. Our Class‑A Virginia contractor team provides old‑fashioned service, upfront pricing, and no overtime rates for after‑hours work. Schedule service or request a free estimate today, and be ready before the next storm season.
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Why Choose Us
What Our Customers Say
"Service was very prompt, and the work was completed without issues."
"Totally straightforward and realistic. No upsell. Taught me my system."
"Great response and generator back working just in time for freezing temperatures."
Answers to Common Questions
View All FAQsWhat are the top reasons a Generac generator won't start?
The most common no-start causes are a weak or dead battery and corroded battery connections. Other frequent issues include blown control-panel fuses, a tripped breaker, clogged fuel filters or moisture in fuel lines, incorrect gas pressure or a gas leak, debris blocking intake or exhaust, and failed starters or control boards. Dirty air filters or worn spark plugs can also prevent starting. These causes align with our generator maintenance and repair checklist.
Quick checks:
- Verify battery voltage and clean terminals.
- Check gas supply and pressure.
- Inspect fuses/breakers and look for leaks or debris.
Updated: 2025-12-11 00:00:00
Need help in Manassas, VA? Call (571)-650-1016 or book online.
"Great response and generator back working just in time for freezing temperatures" — Curt H.
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Change the oil per your generator manufacturer’s schedule; Parrish replaces oil and filter during our annual maintenance visit. Our certified technicians perform manufacturer-recommended checks, including battery voltage testing, verifying gas pressure, simulating a power outage to test the automatic transfer switch, and checking for gas leaks. Off-site Wi-Fi monitoring reviews weekly self-test reports and alerts us to service needs before storms in Fairfax or Alexandria. Ask about Priority Service Plans for turnkey upkeep.
Updated: 2025-11-27 00:00:00
Need help in Fairfax, VA? Call (571)-650-1016 or book online.
"Great response and generator back working just in time for freezing temperatures" — Curt H.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCeHFEcVFBEAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDBxqDqQA%7CCgwI8vecngYQ4JmNlgM%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUREb2ZQWHhnRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDDofPXxgE%7CCgwIjNvasAYQ2NSp5gI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUN2OXVQZUpREAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICv9uPeJQ%7CCgwIhZbjugYQ-K6PowI%7C?hl=en-GB[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tkNE5YQmFlazl4UVVWWGEyUkRibW8wYTFKeFRGRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CAIQACodChtycF9oOkd4NXBaek9xQUVXa2RDbmo0a1JxTFE%7C0cfUWuJnvpy%7C[4] https://parrishservices.com/resources/priority-service-plans/[5] https://parrishservices.com/about/pricing/[6] https://parrishservices.com/electrical/repairs/[7] https://www.parrishservices.com/resources/priority-service-plans/[8] https://www.parrishservices.com/electrical-generators/generator-repairs/[9] https://www.parrishservices.com/electrical-generators/generator-monitoring/[10] https://www.parrishservices.com/about-parrish/why-choose-parrish/How much does whole house generator installation typically cost?
Whole-house generator installation cost varies by generator size, fuel type (natural gas or LP), and the scope of electrical and gas work. Parrish Services provides free estimates for generator installations in Northern Virginia. A technician will confirm final costs after assessing load needs, site prep, pad, transfer switch options, and any utility coordination. Parrish is a turnkey, licensed contractor that pulls permits, schedules inspections, and coordinates gas meter upgrades or utility power drops when required. Service is available across Northern Virginia, including Reston and McLean.
Updated: 2025-12-31
Need help in Remington, VA? Call (571)-650-1016 or book online. "The tech that came out, Doug B, was phenomenal!" — Matt H.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUREb2ZQWHhnRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDDofPXxgE%7CCgwIjNvasAYQ2NSp5gI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tkNE5YQmFlazl4UVVWWGEyUkRibW8wYTFKeFRGRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CAIQACodChtycF9oOkd4NXBaek9xQUVXa2RDbmo0a1JxTFE%7C0cfUWuJnvpy%7C[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCcmFuNk1nEAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDBran6Mg%7CCgwI1srHngYQ6P3i5QI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNqczg3TzZRRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICjs87O6QE%7CCgwIhtapsQYQqMXujQI%7C?hl=en-US[4] https://parrishservices.com/plumbing/water-heaters/[5] https://www.parrishservices.com/heating-cooling/hvac-system-maintenance/[6] https://www.parrishservices.com/electrical-generators/electrical-maintenance/[7] https://www.parrishservices.com/resources/priority-service-plans/[8] https://www.parrishservices.com/electrical-generators/generator-installations/[9] https://www.parrishservices.com/plumbing-water-gas/plumbing-water-maintenance/How much does standby generator repair typically cost?
Standby generator repair costs depend on the issue, required parts, and brand. A technician will diagnose on site and confirm costs before work begins. Priority Service Plans can reduce your bill with discounts up to 15% off all services and discounted emergency or trip fees. We service major brands and keep a large in-house parts inventory to speed repairs. We help homeowners in Fairfax and Reston.
- Note your model and any error codes.
- Describe symptoms and recent outages.
- Schedule a diagnostic visit.
- Ask about Priority Service Plans for savings.
Updated: 2025-12-31
Need help in Remington, VA? Call (571)-650-1016 or book online.
"The tech that came out, Doug B, was phenomenal!" — Matt H.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUREb2ZQWHhnRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDDofPXxgE%7CCgwIjNvasAYQ2NSp5gI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tkNE5YQmFlazl4UVVWWGEyUkRibW8wYTFKeFRGRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CAIQACodChtycF9oOkd4NXBaek9xQUVXa2RDbmo0a1JxTFE%7C0cfUWuJnvpy%7C[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCcmFuNk1nEAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDBran6Mg%7CCgwI1srHngYQ6P3i5QI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNqczg3TzZRRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICjs87O6QE%7CCgwIhtapsQYQqMXujQI%7C?hl=en-US[4] https://parrishservices.com/plumbing/water-heaters/[5] https://www.parrishservices.com/heating-cooling/hvac-system-maintenance/[6] https://www.parrishservices.com/electrical-generators/electrical-maintenance/[7] https://www.parrishservices.com/resources/priority-service-plans/[8] https://www.parrishservices.com/electrical-generators/generator-installations/[9] https://www.parrishservices.com/plumbing-water-gas/plumbing-water-maintenance/How much does standby generator repair service typically cost?
There isn’t a flat price for standby generator repair. A technician must inspect the unit, diagnose the issue, and confirm parts before quoting. Parrish Services repairs major brands with factory-trained techs and keeps a large in-house parts inventory to speed fixes. After diagnosis, you can expect an upfront price before work begins. Remote monitoring can catch problems early, and annual maintenance includes transfer switch testing.
Updated: 2025-12-31
Need help in Reston, VA? Call (571)-650-1016 or book online.
"The tech that came out, Doug B, was phenomenal!" — Matt H.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUREb2ZQWHhnRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDDofPXxgE%7CCgwIjNvasAYQ2NSp5gI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tkNE5YQmFlazl4UVVWWGEyUkRibW8wYTFKeFRGRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CAIQACodChtycF9oOkd4NXBaek9xQUVXa2RDbmo0a1JxTFE%7C0cfUWuJnvpy%7C[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCcmFuNk1nEAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDBran6Mg%7CCgwI1srHngYQ6P3i5QI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNqczg3TzZRRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICjs87O6QE%7CCgwIhtapsQYQqMXujQI%7C?hl=en-US[4] https://parrishservices.com/plumbing/water-heaters/[5] https://www.parrishservices.com/heating-cooling/hvac-system-maintenance/[6] https://www.parrishservices.com/electrical-generators/electrical-maintenance/[7] https://www.parrishservices.com/resources/priority-service-plans/[8] https://www.parrishservices.com/electrical-generators/generator-installations/[9] https://www.parrishservices.com/plumbing-water-gas/plumbing-water-maintenance/How much does it cost to install a standby generator at home?
A home standby generator installation cost is finalized after an on-site assessment because the price depends on equipment size, fuel setup, and the scope of electrical and gas work required. The biggest driver is the generator’s power capacity, which determines both the unit cost and the installation complexity.
As a licensed plumbing and electrical contractor, Parrish pulls permits, coordinates inspections, and manages the entire install so you don’t juggle multiple subs. We regularly handle permitting and utility coordination for Northern Virginia homes near Great Falls. Financing options are available for installations, and a $300 off promotion applies to qualifying replacement/installation invoices of $6,000 and up.
What typically affects your final price:
- Generator kW and desired coverage (partial circuits vs whole-house)
- Gas piping length/size, meter upgrades, or propane tank setup
- Transfer switch type and any panel or wiring changes
- Site prep, concrete pad, trenching, and required permits/inspections
Schedule a site visit to size the system correctly and verify gas and electrical needs before you decide.
Updated: 2026-03-13
Need help in Great Falls, VA? Call (571)-650-1016 or book online. "Great response and generator back working just in time for freezing temperatures" — Curt H.
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Generator repair costs vary by the issue, needed parts, and labor time. A Parrish technician will diagnose the problem on site and provide upfront pricing before work begins. Priority Service Plan members receive discounts up to 15% off services and reduced emergency or trip fees. Our large in-house parts inventory often speeds repairs. We service major brands like Generac, Kohler, Briggs & Stratton, Cummins, and Champion across Northern Virginia, including Fairfax and Reston.
Updated: 2025-12-31
Need help in Remington, VA? Call (571)-650-1016 or book online. "The tech that came out, Doug B, was phenomenal!" — Matt H.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUREb2ZQWHhnRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDDofPXxgE%7CCgwIjNvasAYQ2NSp5gI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tkNE5YQmFlazl4UVVWWGEyUkRibW8wYTFKeFRGRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CAIQACodChtycF9oOkd4NXBaek9xQUVXa2RDbmo0a1JxTFE%7C0cfUWuJnvpy%7C[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURCcmFuNk1nEAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDBran6Mg%7CCgwI1srHngYQ6P3i5QI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNqczg3TzZRRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICjs87O6QE%7CCgwIhtapsQYQqMXujQI%7C?hl=en-US[4] https://parrishservices.com/plumbing/water-heaters/[5] https://www.parrishservices.com/heating-cooling/hvac-system-maintenance/[6] https://www.parrishservices.com/electrical-generators/electrical-maintenance/[7] https://www.parrishservices.com/resources/priority-service-plans/[8] https://www.parrishservices.com/electrical-generators/generator-installations/[9] https://www.parrishservices.com/plumbing-water-gas/plumbing-water-maintenance/Can I service my standby generator myself safely and effectively?
You can handle light upkeep, but full generator maintenance is best left to a certified technician for safety and reliability. Parrish Services performs manufacturer-recommended checks, tests the automatic transfer switch, verifies gas pressure, and replaces oil and filters. DIY beyond cleaning and visual checks can risk gas or electrical hazards. We also offer Wi‑Fi/off‑site monitoring that reviews weekly self‑test reports and flags issues early. We serve communities like Centreville and Alexandria.
Quick checks you can do:
- Keep vents and louvers clear of debris.
- Review app/Wi‑Fi alerts.
- Schedule annual service and transfer switch testing.
Updated: 2025-12-20
Need help in Centreville, VA? Call (571)-650-1016 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNqczg3TzZRRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICjs87O6QE%7CCgwIhtapsQYQqMXujQI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUREb2ZQWHhnRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIDDofPXxgE%7CCgwIjNvasAYQ2NSp5gI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNzMW9LSXJRRRAB!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgICs1oKIrQE%7CCgsIyPfTvQYQgPmDNw%7C?hl=en-GB[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNfLVkzZ1dnEAE!2m1!1s0x0:0xe3c645f169a9aa5b!3m1!1s2@1:CIHM0ogKEICAgIC_-Y3gWg%7CCgwIod-pvAYQwODSzQE%7C?hl=en-GB[4] https://parrishservices.com/resources/priority-service-plans/[5] https://www.parrishservices.com/heating-cooling/hvac-system-maintenance/[6] https://parrishservices.com/electrical/repairs/[7] https://parrishservices.com/about/pricing/[8] https://www.parrishservices.com/resources/priority-service-plans/[9] https://www.parrishservices.com/electrical-generators/generator-repairs/[10] https://www.parrishservices.com/electrical-generators/generator-monitoring/[11] https://www.parrishservices.com/about-parrish/why-choose-parrish/
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Where We Work
What areas do you serve for standby generator installation and maintenance?
We serve Northern Virginia, with frequent visits to Alexandria, Fairfax, and Arlington. See the full list of communities we cover below.

