Frequently Asked Questions

Answers to common questions about plumbing, gas, HVAC, and electrical service across the DMV. Don't see your question? Call us at 1-866-477-6190.
our services

What we handle across plumbing, gas, HVAC, and electrical.

What plumbing services do you offer?

Tim Whistler Plumbing handles the full range of residential and commercial plumbing across the DMV: leak detection and repair, drain cleaning and hydro-jetting, water heater installation and replacement (tankless and tank), sump pump installation, sewer line repair and replacement, fixture upgrades, full repipes, and emergency response for burst pipes and overnight leaks. Every job is performed to WSSC, VA, or DC code by licensed plumbers. Available 24/7.

Do you install or replace water heaters and tankless systems?

Yes. We install, replace, and service traditional tank water heaters and ENERGY STAR rated tankless gas systems for homes and businesses across Washington DC, Maryland, and Northern Virginia. We handle the gas, water, and venting work in-house since our team is licensed across plumbing, gas, and HVAC. Tankless conversions often qualify for utility rebates, and we'll walk you through which option makes sense for your home.

Do you install EV chargers and handle electrical panel upgrades?

Yes. Our licensed electricians install Level 2 EV chargers and handle full electrical panel upgrades (100A, 200A, and 400A) across the DMV. Older homes often need a panel upgrade to support modern loads like an EV charger, heat pump, or solar system. Every project is permitted, inspected, and brought to current code. Call 1-866-477-6190 for a panel evaluation.

Do you install outdoor gas lines for grills, fire pits, or pool heaters?

Yes. We install permitted outdoor natural gas lines for built-in grills, fire pits, fire tables, patio fireplaces, and pool heaters across Bethesda, Arlington, Silver Spring, and the rest of the DMV. Every line is sized to your existing gas service, pressure tested, and terminated at a code-compliant outdoor shutoff valve. No more dragging propane tanks.

Do you service heating, cooling, plumbing, gas, and electrical?

Yes. Tim Whistler Plumbing is licensed across plumbing, gas fitting, HVAC, and electrical work. That means renovation jobs that touch multiple trades, like a kitchen remodel or a basement finish, can run under one license, one schedule, and one point of contact instead of coordinating four separate contractors. We serve homes and businesses across the DMV.

Do you offer commercial plumbing and HVAC services?

Yes. Our commercial division handles plumbing, gas, HVAC, and electrical work for offices, restaurants, retail, medical practices, multi-tenant, and light industrial properties across Washington DC, Maryland, and Northern Virginia. We work with property managers, facilities teams, and general contractors, with the licensing, insurance, and 24/7 availability commercial work requires.

pricing

Cost expectations, free estimates, financing, and specials.

Do you offer free estimates?

Yes. We provide free estimates for most installation and replacement projects, including water heaters, boilers, AC units, panel upgrades, gas line work, and full system installations. For diagnostic work on existing equipment (like an AC that isn't cooling), there may be a small service call fee that's credited toward the repair if you move forward. Call 1-866-477-6190 to schedule.

How much does water heater installation cost in the DMV?

Pricing varies based on the type (tank vs. tankless), size, fuel source (gas vs. electric), and any code upgrades required for venting or gas line work. As a rough range, a standard tank water heater replacement in the DMV typically falls between $1,800 and $3,500 installed, and tankless conversions usually run $4,000 to $7,500 installed. We provide a written, itemized quote before any work starts.

How much does an electrical panel upgrade cost?

A typical 100 amp to 200 amp panel upgrade in the DMV runs roughly $2,500 to $5,000, depending on the age and condition of the existing service entrance, grounding system, and meter base, plus any required permits and inspections. Older homes often need the service cable and meter base replaced too, which affects the price. We provide a free written estimate after inspecting the existing setup.

Do you offer financing on larger projects?

Yes, financing is available on qualifying installation projects including water heaters, HVAC systems, panel upgrades, and full-system installations. We can walk you through the options when we provide your estimate. Call 1-866-477-6190 or ask your technician at the time of your estimate.

Do you charge a service call or diagnostic fee?

For most installation and replacement quotes, the estimate is free. For diagnostic visits on existing equipment, a small service call fee may apply, which is credited toward the cost of any repair you authorize. Emergency after-hours calls may include an emergency dispatch fee, which we disclose up front. No hidden charges.

What are your current specials and discounts?

Current promotions are listed on our Specials page. Recent specials have included whole-house plumbing inspections and gas fireplace inspections at promotional pricing. Pricing changes seasonally, and we periodically offer discounts for first-time customers, seniors, military, and bundled services. Ask your technician for any specials that apply to your job.

service areas

Where we work, how to schedule, and our hours.

What areas in the DMV do you serve?

Tim Whistler Plumbing serves homes and businesses across the Washington DC metro, including Montgomery County, Howard County, Frederick County, Arlington, Alexandria, Fairfax County, Bethesda, Tyson's Corner, Springfield, Falls Church, McLean, Kensington, Silver Spring, Chevy Chase, Takoma Park, and most surrounding communities in Maryland, Virginia, and Washington DC. If you're not sure if we cover your area, call 1-866-477-6190.

Do you serve Bethesda, Arlington, Silver Spring, and the rest of the DC metro?

Yes. Bethesda, Arlington, Silver Spring, and the wider DC metro are core service areas. We're regularly on jobs in Bethesda, Chevy Chase, Tyson's Corner, Falls Church, McLean, Kensington, Takoma Park, Old Town Alexandria, Northwest DC, and surrounding neighborhoods. Same-day service is often available depending on technician availability.

Are you licensed in DC, Maryland, and Virginia?

Yes. We hold active licenses across all three DMV jurisdictions: WSSC 6119360 (Maryland), Virginia 2710020030 and 2710059613, and DC PGM-1002028. Our team is licensed for plumbing, gas fitting, HVAC, and electrical work, with permits pulled and inspections coordinated as part of every job that requires them.

How do I schedule service?

You can book service three ways: call 1-866-477-6190 (or 301-648-9676), submit a request through the online form on our website, or use the online scheduler to pick a time slot. For emergencies, always call directly so we can dispatch the closest available technician.

Do you offer same-day appointments?

Yes, when technicians are available we offer same-day appointments. Call 1-866-477-6190 in the morning for the best chance at a same-day slot. For emergencies (burst pipes, suspected gas leaks, no heat in winter, no AC in summer), we respond around the clock with priority dispatch.

What are your hours of operation?

Our standard business hours are Monday through Friday during regular business hours. For emergencies, we're available 24 hours a day, 7 days a week, year round. Call 1-866-477-6190 any time, day or night.

emergencies

24/7 response, gas leak guidance, permits and licensing.

Do you offer 24/7 emergency plumbing, gas, HVAC, and electrical service?

Yes. Tim Whistler Plumbing offers true 24/7 emergency response for plumbing, gas, HVAC, and electrical issues across the DMV. Whether it's a burst pipe at 2 a.m., a suspected gas leak, a furnace that died on the coldest night of the year, or a panel that's tripping breakers, we have a licensed technician available. Call 1-866-477-6190.

What should I do if I smell gas in my home?

If you smell gas, leave the house immediately and call 911 or your gas utility's emergency line from outside (Washington Gas: 844-WGAS-LEAK). Do not flip light switches, light matches, use the phone inside, or start your car nearby. Once the utility confirms the source is contained, call Tim Whistler Plumbing at 1-866-477-6190 for licensed gas-fitter repair. We treat every suspected leak as a same-day priority.

What should I do if a pipe bursts in my home?

First, shut off the main water valve to stop the flow. Then turn off electricity to any area where water has reached outlets or panels. Move valuables out of the water's path. Once you've contained the immediate damage, call Tim Whistler Plumbing at 1-866-477-6190 for emergency response. We're available 24/7 for burst pipe repair.

How quickly can you respond to an emergency in the DMV?

Response times depend on time of day, weather, and how far you are from our nearest available technician, but most emergency calls in core service areas (Bethesda, Arlington, Silver Spring, DC, and surrounding) get an on-site technician within 1 to 3 hours, often faster during business hours. Call 1-866-477-6190 and we'll give you an honest ETA.

Do you pull permits and coordinate inspections?

Yes. For any work that requires a permit (most water main, gas line, panel upgrade, and major HVAC projects), we pull the permit, schedule the inspection, and meet the inspector. Working with a licensed contractor who handles permits properly is what keeps your homeowner's insurance valid and protects you when you eventually sell the home.

Are you fully licensed and insured?

Yes. Tim Whistler Plumbing is fully licensed and insured across DC, Maryland, and Virginia. Our active licenses include WSSC 6119360, Virginia 2710020030 and 2710059613, and DC PGM-1002028. We carry insurance for residential and commercial work, and we provide proof of insurance on request for any project that requires it.

Let's Talk

Our experienced team can handle all of your questions. Send us a message.

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