Licensed Plumbing Services in Bethesda, MD
Plumbing Services We Offer in Bethesda, MD
DMV General Contracting Group's licensed plumbing team covers the full range of residential plumbing needs for Bethesda homeowners — from routine fixture replacements to complex whole-home repiping and remodel rough-in work.
Plumbing Service Categories — Bethesda Residential
Here's a breakdown of our most in-demand residential plumbing services in Bethesda, organized by category:
🔥 Water Heater Services
- Tank water heater replacement (gas & electric)
- Tankless water heater installation (gas & electric)
- Heat pump water heater installation
- Water heater expansion tank installation
- Water heater permit & inspection
- Water heater relocation (remodel support)
🔧 Pipe Replacement & Repiping
- Full home repiping (PEX — most popular)
- Full home repiping (copper)
- Galvanized steel pipe replacement
- Polybutylene pipe replacement
- Lead service line identification
- Partial pipe repair & section replacement
🚿 Bathroom & Kitchen Plumbing
- Shower valve & body spray rough-in
- Freestanding tub supply & drain rough-in
- Toilet rough-in & relocation
- Vanity supply & drain connections
- Kitchen sink & faucet installation
- Pot filler installation
💧 Drainage & Pump Systems
- Sump pump installation & replacement
- Battery backup sump pump installation
- Sewage ejector pump installation
- Floor drain installation
- French drain & interior drainage
- Basement bathroom rough-in plumbing
🛠️ Fixture & Appliance Connections
- Toilet, faucet & showerhead replacement
- Garbage disposal installation
- Dishwasher supply & drain connection
- Refrigerator ice maker line
- Washing machine hookup
- Outdoor hose bib & irrigation hookup
💎 Water Treatment & Filtration
- Whole-home water softener installation
- Whole-home water filtration system
- Under-sink reverse osmosis system
- Sediment filter installation
- Water pressure regulator installation
- Expansion tank installation
Water Heater Installation & Replacement in Bethesda, MD
Water heater replacement is one of the most common plumbing calls we receive from Bethesda homeowners. The average water heater lasts 10–15 years — and Bethesda's hard water can shorten that lifespan considerably. If your water heater is over 10 years old, making noise, producing rusty water, or running out of hot water faster than usual, it is likely time for a replacement.
Here's a comparison of the most popular water heater types for Bethesda homes to help you choose the right replacement:
| Type | Efficiency | Hot Water Supply | Bethesda Installed Cost | Best For |
|---|---|---|---|---|
| Tank Water Heater (Gas) | Moderate — EF 0.60–0.70 | Limited by tank size (40–75 gal) | $1,200 – $2,200 | Budget replacement, existing gas line |
| Tank Water Heater (Electric) | Moderate — EF 0.90–0.95 | Limited by tank size | $1,000 – $1,800 | Homes without gas, simple replacement |
| Tankless (Gas) Popular | High — 20–30% more efficient | Unlimited hot water on demand | $2,800 – $5,500 | Large families, high hot water demand |
| Tankless (Electric) | High — very efficient | Unlimited, but flow rate limited | $1,800 – $3,500 | Smaller homes, point-of-use applications |
| Heat Pump Water Heater Most Efficient | Very High — EF 3.0–4.0+ | Large tank, high recovery rate | $1,800 – $3,500 | Max efficiency, may qualify for tax credit |
Whole-Home Repiping in Bethesda, MD
Many Bethesda homes built before 1990 have plumbing materials that are now outdated, failing, or have been linked to health and safety concerns. Whole-home repiping — replacing all supply lines from the main shutoff throughout the entire home — is the permanent solution.
Here's a comparison of the pipe materials DMV General Contracting Group uses for whole-home repiping in Bethesda:
| Pipe Material | Lifespan | Cost (Full Home) | Pros | Best For |
|---|---|---|---|---|
| PEX (Cross-linked Polyethylene) Most Popular | 50+ years | $5,000 – $9,000 | Flexible, frost-resistant, fast install, lower cost | Most Bethesda whole-home repipes |
| Copper | 50–70+ years | $8,000 – $15,000 | Premium material, antimicrobial, proven longevity | Homes requiring premium materials |
| CPVC | 30–50 years | $6,000 – $10,000 | Rigid, handles high temps, good for hot water lines | Specific applications — less common than PEX |
Plumbing Warning Signs in Bethesda Homes
Don't wait for a plumbing emergency before addressing these common warning signs found in Bethesda's older housing stock:
Discolored or Rusty Water
Brown or orange water from taps — especially hot water — signals corroding galvanized steel pipes or a failing water heater tank. Needs immediate attention.
Low Water Pressure
Reduced pressure throughout the home typically indicates corrosion buildup inside old galvanized pipes restricting flow — repiping is the permanent fix.
Visible Pipe Corrosion
Green staining (copper), white mineral deposits, or flaking rust on visible pipes in the basement or utility room are signs of active pipe deterioration.
Recurring Leaks
Multiple leaks in different parts of the home within a short period indicate systemic pipe failure — not isolated incidents. Repiping is more cost-effective than repeated repairs.
Banging or Rattling Pipes
"Water hammer" — banging pipes when water is shut off — indicates loose pipes, pressure issues, or failing water hammer arrestors that need attention.
Unexplained High Water Bills
A sudden spike in your WSSC water bill without a change in usage is a classic sign of a hidden leak — in walls, under slabs, or in supply lines.
Sump Pump Installation in Bethesda, MD
Bethesda's terrain — with many homes on sloped lots above rock-shelf soil — creates drainage challenges that make sump pump systems essential for any finished basement. Maryland's frequent heavy rain events and seasonal snowmelt make a functioning sump pump one of the most important plumbing components in a Bethesda home.
DMV General Contracting Group installs and replaces sump pumps throughout Bethesda and Montgomery County. We install primary sump pumps, battery backup systems (critical for power outages during storms), and combination primary-plus-backup systems for maximum protection. We also install sewage ejector pumps for basement bathrooms that sit below the main drain line — a common requirement for finished basements in Bethesda's older housing stock.
⚡ Battery Backup Sump Pump — Strongly Recommended for Bethesda: The most common time a sump pump is needed is during a heavy storm — and that is exactly when power outages occur. A battery backup sump pump continues operating during power failures, protecting your finished basement from flooding when your primary pump loses power. DMV General Contracting Group installs battery backup systems for primary sump pumps throughout Bethesda.
Plumbing for Remodeling Projects in Bethesda, MD
As Bethesda's full-service design-build contractor, DMV General Contracting Group's licensed plumbers support every remodeling project we undertake — and are also available for standalone plumbing work. Here's how plumbing integrates with common Bethesda renovations:
| Project Type | Typical Plumbing Work Included |
|---|---|
| Bathroom Remodel | Shower valve rough-in, tub drain and overflow, toilet rough-in, vanity supply and drain, pot filler, exhaust fan drain (steam showers) |
| Kitchen Remodel | Sink supply and drain relocation, dishwasher hookup, garbage disposal installation, pot filler installation, filtered water line |
| Basement Finishing | Basement bathroom rough-in (below-grade drainage), sewage ejector pump, floor drain, wet bar plumbing |
| Home Addition | Supply and drain extension into new addition, bathroom rough-in, water heater upgrade if capacity needed |
| ADU Construction | Dedicated water service or shared service split, kitchen and bathroom rough-in, water heater for ADU unit |
| Whole-Home Renovation | Full repipe during renovation (most cost-effective time), new fixtures throughout, water heater replacement |
Plumbing Service Cost in Bethesda, MD
Here is a general cost guide for the most common plumbing services in Bethesda, Maryland. All prices include labor, materials, and Montgomery County permit fees where applicable:
| Service | Typical Cost Range | Notes |
|---|---|---|
| Tank Water Heater Replacement (Gas) | $1,200 – $2,200 | Standard 40–50 gallon; includes permit and disposal |
| Tankless Water Heater (Gas) | $2,800 – $5,500 | Includes gas line upgrade if needed; permit included |
| Heat Pump Water Heater | $1,800 – $3,500 | May qualify for 30% federal tax credit |
| Whole-Home Repipe (PEX) | $5,000 – $9,000 | 3-bed home typical; includes permit and drywall patching coordination |
| Whole-Home Repipe (Copper) | $8,000 – $15,000 | Premium material; longer install time |
| Sump Pump Installation | $600 – $1,200 | Primary pump; basin included if needed |
| Battery Backup Sump Pump | $400 – $900 | Added to existing primary pump installation |
| Bathroom Rough-In (New Bath) | $2,000 – $5,000 | Supply, drain, vent; full permit included |
| Toilet Replacement | $350 – $700 | Standard replacement; includes wax ring and supply line |
| Faucet / Fixture Replacement | $200 – $500 | Per fixture; homeowner-supplied or contractor-supplied |
| Garbage Disposal Installation | $250 – $500 | Includes electrical coordination if needed |
| Water Softener Installation | $800 – $2,000 | Unit cost additional; Bethesda's hard water makes this popular |
Why Choose DMV General Contracting Group for Plumbing in Bethesda
Plumbing work in Bethesda's older homes requires experience — older pipe configurations, tight crawl spaces, concrete slab penetrations, and below-grade basement bathrooms all demand a plumber who has seen these challenges before. DMV General Contracting Group's in-house plumbing team handles all of it.
⭐ 4.9-star rated with 97+ reviews. As a full-service design-build contractor, DMV General Contracting Group coordinates plumbing with every other trade on your renovation project — no scheduling conflicts, no gaps between plumber and tile setter, and no change orders from coordination mistakes between separate contractors.
Our Plumbing Service Process in Bethesda
Free Plumbing Assessment & Estimate
We visit your Bethesda home, assess your existing plumbing system — pipes, water heater, fixtures, and drainage — discuss your needs, and provide a detailed written estimate at no charge. For repiping projects, we inspect all accessible pipe in the basement and utility areas to identify pipe material and condition.
Permit Application
For all permitted plumbing work (water heaters, repiping, new bathrooms, new rough-in), we file all required Montgomery County plumbing permits before work begins. We handle all county correspondence and inspection scheduling — you don't need to contact the county at any point.
Plumbing Work Performed
Our licensed plumbers complete all work cleanly and professionally — protecting finishes, walls, and cabinets throughout. For repiping projects, we open only the walls and ceilings necessary to access and replace pipes, and coordinate drywall patching and painting as a follow-on step.
Montgomery County Inspection
We schedule and manage all required plumbing inspections — rough-in inspections for in-wall pipes and final inspections for fixtures, water heaters, and completed systems. We address any inspector comments promptly to keep your project on track.
Final Testing & Walkthrough
We test all new plumbing — running water at every fixture, checking for leaks at every connection, verifying water heater operation and temperature, and confirming drainage is functioning correctly. We do a complete walkthrough with you before closing the job.
Serving Bethesda and Surrounding Areas for Plumbing Services
Water heater replacement & repiping in Chevy Chase & Potomac, MD
Chevy Chase and Potomac have significant older housing stock — many colonials and cape cods with galvanized steel pipes and aging tank water heaters that are well overdue for replacement. DMV General Contracting Group regularly performs water heater replacements, polybutylene repipes, and whole-home PEX repiping projects throughout both communities. We are fully familiar with WSSC (Washington Suburban Sanitary Commission) requirements that apply to plumbing work in these areas.
Sump pump & basement plumbing in Kensington & Silver Spring, MD
Kensington, Silver Spring, and Wheaton homeowners frequently need sump pump installations and basement bathroom rough-in work — the terrain and older infrastructure in these communities create drainage challenges that require experienced plumbers who understand below-grade plumbing in Maryland's climate. DMV General Contracting Group handles all basement plumbing needs across Montgomery County.
Frequently Asked Questions — Plumbing Services in Bethesda, MD
Explore Our Other Services in Bethesda
DMV General Contracting Group's licensed plumbers support every renovation we undertake — and handle standalone plumbing projects across Bethesda:
